posters - oxford abstracts

Posters07:30-19:00Thursday,27thSeptember,2018

P001 Comparisonofdifferentschemesofconservativetreatmentofanalincontinence

OxanaFomenko1,AlexanderTitov1,SvetlanaBelousova1,DenisAleshin1,VladimirKozlov2,MichailMoscow,RussiaAlekseev1,AndreyMudrov1,MaximNekrasov11StateScietificCentreofColoproctology,Moscow,RussianFederation.2NationalResearchUniversityHigherSchoolofEconomicsInstituteofDemography,Moscow,RussianFederation

P002 Replacementadaptor09106asasolutionincaseofendofstimulationoftheInterstimIforpatientswithadynamicgraciloplasty:afeasibilityandsafetystudy.

RomanAssmann,StephanieBreukink,JarnoMelenhorstMUMC+,Maastricht,Netherlands

P003 Long-termresultsofsacralnervestimulationforfaecalincontinenceinonetertiaryreferralcenter.

MathildeAubert,DianeMege,AurélieMaignan,ArnaudSans,JulieDuclos,RemyLeHuuNho,NicolasPirro,IgorSielezneffTimonehospital,Marseille,France

P004 Ispercutaneoustibialnervestimulationadequatetomanagepatientswithfecalincontinencewithouthavinganytypeofsurgery?

OnurBayram,BerkeSengun,OrhanAgcaoglu,EmreOzoran,DeryaUymaz,EmreBalik,DursunBugraKocUniversitySchoolofMedicineDepartmentofGeneralSurgery,Istanbul,Turkey

P005 Laparoscopicventralrectopexyintreatmentofrectalprolapse.

OlegBiryukov,AlexanderTitov,GrigoryZadachinStateScientificCentreofColoproctology,Moscow,RussianFederation

P006 Isolatedfecalincontinencepatientsrepresentadifferentdiseasephenotypefrompatientswhoreportfecalincontinencewithconcurrentconstipation

ChristyCauley,LiebaSavitt,MilenaWeinstein,MayWakamatsu,HirokoKunitake,RoccoRicciardi,KyleStaller,LilianaBordeianouMassachusettsGeneralHospital,Boston,USA

P007 Resultsofpelvicfloorrehabilitationinpatientswithfecalincontinence

LeonardoCarcamo,GonzaloPalominos,FelipeBellolio,OrianaMolina,GonzaloUrrejola,TomasLarach,RodrigoMiguieles,AlvaroZuñiga,MariaElenaMolinaPontificiaUniversidadCatólicadeChile,Santiago,Chile

P008 Biofeedbackforfaecalincontinenceimprovesfunctionaloutcomesandreduceslongtermhealthcareutilisation

AikYongChok1,KeerthanaSriMurali2,NyeThaneNgo3,CherylinFu1,ChoongLeongTang1,EmileKWTan11DepartmentofColorectalSurgerySingaporeGeneralHospital,Singapore,Singapore.2NUSYongLooLinSchoolofMedicine,Singapore,Singapore.3DepartmentofHistopathologySingaporeGeneralHospital,Singapore,Singapore

P009 Comparativequalityoflifeinpatientsfollowingtransanalminimallyinvasivesurgery(TAMIS)andhealthycontrolsubjects

StefanClermonts1,2,TinavanLoon1,DareskaWasowicz1,BarbaraLangenhoff1,DavidZimmerman11Elisabeth-TweeStedenHospital,Tilburg,Netherlands.2MaastrichtUniversityMedicalCenter,Maastricht,Netherlands

P010 ASystematicReviewofAnteriorResectionSyndrome(ARS)

CatherineBryant1,DaniellaDonato-Brown2,HenryLee1,ChristopherChan31TheWhittingtonNHSTrust,London,UnitedKingdom.2ImperialCollegeLondon,London,UnitedKingdom.3BartsHealthNHSTrust,London,UnitedKingdom

P011 SacralNerveStimulationatsub-sensorythresholddoesnotcompromisetreatmentefficacyinfaecalincontinencepatients.

JakobDuelund-Jakobsen,LilliLundby,SteenBuntzen,SørenLaurbergAarhusUniversityHospital,PelvicFloorUnit,Aarhus,Denmark

P012 TaeniectomyversusTransvereColoplastyasNeorectumafterLowRectalResection.

AhmedFarag,MohamedYehiaElbarmelgi,AbdrabouNMashhourFacultyofmedicine,Cairouniversity,Cairo,Egypt

P013 UtilityofMansouraNumeroalphabeticConstipationScore(MNCS)inDecisionMakingandPredictingtheOutcomeofTreatmentofObstructedDefecationSyndrome

SamehEmile,MostafaShalaby,AymanElshobaky,MohamedYoussef,WaelKhafagy,MohamedFaridMansouraUniversity,Mansoura,Egypt

P014 NEUROMODULATIONOFTHEPOSTERIORTIBIAL(PTNS)ASTREATMENTOFFECALINCONTINENCE.OUREXPERIENCEIN62PATIENTS

LidiaCristobal-Poch1,TamaraFernandez-Miguel1,PaulaMartinez-Perez1,NoemiCano1,MªFeLastra1,CarmenCagigas-Fernandez1,2,MarcosGomez-Ruiz1,2,ManuelGómez-Fleitas1,2,3,JuliodelCastillo-Diego1,21HospitalUniversitarioMarquesdeValdecilla,Santander,Spain.2IDIVAL,Santander,Spain.3UniversidaddeCantabria,Santander,Spain

P015 Acomparativestudyonthesexualandurinaryfunctionsaftertransanaltotalmesorectalexcisionandlowanteriorresectionforrectalcancer

ChiChungFoo,JulianTsang,WayneLam,WaiLunLaw,OswensLoUniversityofHongKong,HongKong,HongKong

P016 FunctionalLumenImagingProbefunctionalassessmentofanalcanalinFaecallyIncontinentPatients

KaoriFutaba1,Ssu-ChiChen1,WingWaLeung1,CherryWong1,SimonChu2,DenisNgo1,TonyWingChungMak1,SimonNg1,HansGregersen11ChineseUniversityofHongKong,Shatin,HongKong.2ChineeUniversityofHongKong,Shatin,HongKong

P017 Fecobionics:Anoveldefaecatoryfunctiontest

KaoriFUtaba,Ssu-ChiChen,WingWaLeung,CherryWong,SimonChu,DennisNgo,TonyWingChungMak,SimonNg,HansGregersenChineseUniversityofHongKong,Shatin,HongKong

P018 Altemeier’sprocedureforcompleterectalprolapse;outcomeandfunctionin47consecutivepatients.

MarioTrompetto1,RobertaTutino2,AlbertoRealisLuc1,EugenioNovelli3,GaetanoGallo4,GiuseppeClerico11DepartmentofColorectalSurgery.SRitaClinic,Vercelli,Italy.2DepartmentofSurgical,OncologicalandStomatologicalDisciplines,UniversityofPalermo,Palermo,Italy.3DepartmentofBiostatistics,S.GaudenzioClinic,PoliclinicodiMonza,Monza,Italy.4DepartmentofGeneralSurgery,UniversityofCatanzaro,Catanzaro,Italy

P019 Stapledtransanalrectalresectionforthetreatmentofrectoceleassociatedwithobstructeddefaecationsyndrome:alargeseriesof262patients

GabriellaGiarratano1,ClaudioToscana2,MostafaShalaby3,4,PierpaoloSileri41CasadiCuraVillaTiberia,Rome,Egypt.2CasadiCuraVillaTiberia,Rome,Italy.3MansouraUniversity,Mansoura,Egypt.4RomeTorVergataUniversity,Rome,Italy

P020 Defecography:first-linediagnosticmodalityinpatientswithrefractoryconstipation?Implicationsfromasystematicreviewandmeta-analysis

UgoGrossi1,GianLucaDiTanna2,HenrietteHeinrich3,StuartTaylor4,CharlesKnowles1,SMarkScott11CentreforTraumaandSurgery,andGIPhysiologyUnit,BartsandtheLondonSchoolofMedicineandDentistry,QueenMaryUniversityofLondon,London,UnitedKingdom.2Riskcenter-IREA,DepartmentofEconometrics,StatisticsandAppliedEconomics,UniversitatdeBarcelona,Barcelona,Spain.3DepartmentofGastroenterologyandHepatology,UniversityHospitalZurich,Zurich,Switzerland.4CentreforMedicalImaging,UniversityCollegeLondon,London,UnitedKingdom

P021 Thelong-termresultsofTranstarrproceduretotreatobstructeddefecationsyndrome(ODS)

ServaneHAMEL1,DianeMEGE2,MarieDAZZA1,MathieuLOIRE1,Anne-MarieLEROI1,Jean-JacquesTUECH1,ValérieBRIDOUX11RouenUniversityHospital,Rouen,France.2TimoneHospital,Marseille,France

P022 Towardsacoreoutcomesetforslow-transitconstipationinadults:asystematicreviewofoutcomesreportedintheliterature

StellaCMHeemskerk1,2,3,AdriënneHRotteveel1,4,2,JarnoMelenhorst1,3,MerelLKimman1,2,CarmenDDirksen1,2,StéphanieOBreukink1,31MaastrichtUniversityMedicalCenter+,Maastricht,Netherlands.2CareandPublicHealthResearchInstituteMaastrichtUniversity,Maastricht,Netherlands.3SchoolofNutritionandTranslationalResearchinMetabolismMaastrichtUniversity,Maastricht,Netherlands.4NationalInstituteforPublicHealthandtheEnvironment,Bilthoven,Netherlands

P023 Expectationsandexperiencesofpatientswithidiopathicconstipationregardingsacralneuromodulation:aqualitativeapproach

AdriënneHRotteveel1,2,3,StellaCMHeemskerk1,2,4,CarmenDDirksen1,2,MarlaWoolderink2,1,PaulTJHMJanssen1,LaurensPSStassen1,4,JarnoMelenhorst1,4,StéphanieOBreukink1,41MaastrichtUniversityMedicalCenter+,Maastricht,Netherlands.2CareandPublicHealthResearchInstituteMaastrichtUniversity,Maastricht,Netherlands.3NationalInstituteforPublicHealthandtheEnvironment,Bilthoven,Netherlands.4SchoolofNutritionandTranslationalResearchinMetabolismMaastrichtUniversity,Maastricht,Netherlands

P024 EpisiotomyeffectsonfecalincontinenceinmultiparouspatientsinShiraz

SeyedVahidHosseini,HajarKhazraei,AlimohammadBananzadehColorectalresearchcenter,Shiraz,Iran,IslamicRepublicof

P025 Defecographyinthediagnosisofrectoceleandprolapseoftherectum

SolmazImanova,BabakZeynalovAzerbaijanmedicaluniversitety,Baku,Azerbaijan

P026 SexualfunctioninwomenafterlaparoscopicventralrectopexywithPermacol-biomesh,forrectalprolapse

LouisJohnson,MartinLindsten,UrsulaAhoFält,PatriciaMaldonado,SaraStrandberg,MariDahlberg,AntoniZawadzkiMalmöUniversityHospital-PelvicFloorCentre,SUS,Malmö,Sweden

P027 Long-termfunctionaloutcomeandqualityoflifeafterredo-anastomosisfollowingananastomoticleak

ThereseJuul1,HossamElfeki1,2,SørenLaurberg1,AndréD'Hoore31AarhusUniversityHospital,Aarhus,Denmark.2MansouraUniversityHospital,,Mansoura,Egypt.3UniversityHospitalsLeuven,Leuven,Belgium

P028 Colectomyforchronicconstipationpatientswithfeaturesofcolonicpseudo-obstruction

SaraKim1,Yoon-HyeKwon1,Kil-yongLee1,InhoSong1,EunKyungChoe2,KyuJooPark11SeoulNationalUniversityHospital,Seoul,Korea,Republicof.2SeoulNationalUniversityHospitalGang-namcenter,Seoul,Korea,Republicof

P029 Outcomesoftreatmentoffecalincontinencewithsacralnervestimulation-aFinnishnationalstudy

JaanKirss1,2,TarjaPinta3,PiritaVarpe1,TeroRautio4,MattiKairaluoma5,MarjaHyöty6,SaijaHurme7,CamillaBöckelman8,ValtteriKairaluoma4,SinikkaSalmenkylä8,MikaelVictorzon2,91DivisionofDigestiveSurgeryandUrology,TurkuUniversityhospital,Turku,Finland.2TurkuUniversity,Turku,Finland.3SeinäjokiCentralHospital,DepartmentofSurgery,Seinäjoki,Finland.4OuluUniversityHospital,Oulu,Finland.5CentralFinlandCentralHospital,Jyväskylä,Finland.6TampereUniversityHospital,Tampere,Finland.7DepartmentofBiostatistics,UniversityofTurku,Turku,Finland.8HelsinkiUniversityHospital,Helsinki,Finland.9VaasaCentralHospitasa,DepartmentofSurgery,Vaasa,Finland

P030 Graciloplastyasaneffectivemethodforrestorationoftheperinealbodyinpatientswithpassivefecalloss

MarloesKnol,HeleenSnijders,HansvanderHeyden,CoenBaetenGroeneHartZiekenhuis,Gouda,Netherlands

P031 ElectrophysiologicalresponsesoftheS3sacralnerveinhumansduringneuromodulationforfaecalincontinence

GerritE.Gmel1,JohnL.Parker1,2,DaveMugan1,PaulF.Vollebregt3,EleanorMcAlees3,CharlesH.Knowles31SaludaMedicalPtyLtd,Artarmon,Australia.2GraduateSchoolofBiomedicalEngineering,TheUniversityofNewSouthWales,Sydney,Australia.3NationalBowelResearchCentre,BlizardInstitute,QueenMaryUniversityofLondon,London,UnitedKingdom

P032 Malesexualdysfunctionaftersurgeryformidtolowrectalcancer

AkihiroKondo1,2,YujiNishizawa2,YuichiroTsukada2,TakeshiSasaki2,MasaakiIto21KagawaUniversity,Kagawa,Japan.2NationalCancerCenterHospitalEast,Chiba,Japan

P033 Adverseobstetrichistoryisnotariskfactorforpooroutcomeafterventralmeshrectopexyforobstructivedefecationsyndrome

DarjaKremel1,StefanRiss2,CatharinaMüller2,MarcovonStrauss3,CatherineWinstanley1,JoeWinstanley1,MarkPotter1,HughPaterson1,MhairiCollie11DepartmentofColorectalSurgery,WesternGeneralHospital,Edinburgh,UnitedKingdom.2MedicalUniversityofVienna,DepartmentofSurgery,Vienna,Austria.3DepartmentofSurgery,UniversityHospitalBasel,Basel,Switzerland

P034 Theimpactofbariatricsurgeryongastrointestinalfunction

AnthousaKythreotou1,ChristosKontovounisios1,2,3,EvangelosEfthymiou3,ParisTekkis1,2,3,AraDarzi1,HutanAshrafian11DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.2RoyalMarsdenhospital,London,UnitedKingdom.3ChelseaWestminsterhospital,London,UnitedKingdom

P035 Clinicalevaluationandtreatmentofchronicdiarrhoeafollowingcancerinthecolonandpelvicorgans

HeleneMathildeLarsen1,MetteBorre1,PeterChristensen1,AsbjørnDrewes2,SørenLaurberg1,KlausKrogh1,JanneFassov31AarhusUniversityHospital,Aarhus,Denmark.2AalborgUniversityHospital,Aalborg,Denmark.3AarhusUnivesityHospital,Aarhus,Denmark

P036 Howdoesbariatricsurgeryaffectsymptomsrelatedtopelvicfloordisordersinobesefemalepatients?Aprospectivestudy

ClémentineMazoyer1,AntonioIannelli1,PatrickTreacy1,EmilieDuchalais2,EmmanuelBenizri31CHU,Nice,France.2CHU,Nantes,France.3CHU,NICE,France

P037 Dynamicgraciloplastycanbeanoptiontotreatseverefaecalincontinence.20-years’experiencefromonetertiaryreferralcentre

DianeMege,AurélieMaignan,AdelOmouri,ArnaudSans,JulieDuclos,RémyLeHuuNho,NicolasPirro,IgorSielezneffTimonehospital,Marseille,France

P038 Whatisthebesttrans-analprocedureforrectoceletreatment?AcomparativestudybetweenSullivanandSTARRprocedures

DianeMege1,ValérieBridoux2,LaureMallet2,RémyLeHuuNho1,ServaneHamel2,Jean-JacquesTuech2,IgorSielezneff11TimoneHospital,Marseille,France.2CharlesNicollehospital,Rouen,France

P039 ARetrospectiveAnalysisofBotulinumToxinforAnalFissureatWexhamParkHospital

NickLi,MitchellBurden,GiulioCuffolo,JuliaMerchant,NadeenLow,GisellaSalernoWexhamParkHospital,Slough,UnitedKingdom

P040 Resultsofsatisfactionsurveyafterpercutaneoustibialnervestimulation(pTNS)inaserieof62patientswithfecalincontinence

TamaraFernándezMiguel,LidiaCristobalPoch,PaulaMartinezPerez,CarmenCagigasFernandez,MarcosGomezRuiz,ManuelGomezFleitas,JulioCastilloDiegoHospitalUniversitarioMarquésdeValdecilla,Santander,Spain

P041 DelormesurgeryforrectalmucosaprolapseafterISRin28patients

NaokoMiura,YujiNishizawa,KojiIkeda,YuichiroTsukada,TakeshiSasaki,MasaakiItoDivisionofColorectalSurgery,NationalCancerCenterHospitalEast,Chiba,Japan

P042 Oldmethod–newcentury:theAltemeierprocedure

MarijanaNinkovic,SaschaCzipin,MarcusHuth,IrisMühlbacher,IrmgardKronbergerDepartmentofVisceral-,TransplantandThoracicSurgery,MedicalUniversityofInnsbruck,Austria,Innsbruck,Austria

P043 Effectivenessofpelvicfloorrehabilitationforboweldysfunctionafterintersphinctericresectionforlowerrectalcancer

HideakiNishigori,MasayukiIshii,YujiroKokado,KoujiFujimoto,HiroshiHigashiyamaShinkoHospital,Kobe,Japan

P044 Atotallaparoscopicapproachreduceserectiledysfunctionafterilealpouch-analanastomosis:atwo-centrestudy

PicaudOlivier1,LauraBeyer-Berjot1,YannParc2,StéphaneBerdah1,JérémieH.Lefèvre21HôpitalNordAPHM,Marseille,France.2HôpitalSaintAntoineAPHP,Paris,France

P045 Riskfactorsforpostoperativeileusfollowingelectivelaparoscopicrightcolectomy:Aretrospectivemulticentricstudy

LiseCourtot1,BertrandLeRoy2,ThibaultVoron3,NicolasDeangelis4,NicolasTabchouri1,FrancescoBrunetti5,AnneBerger6,DidierMutter7,EphremSalamé8,DenisPezet9,MehdiOuaissi81DepartmentofDigestive,Oncological,Endocrine,andHepaticSurgery,andHepaticTransplantation.TrousseauHospital,Tours,Tours,France.22DepartmentofDigestiveSurgery,EstaingUniversityHospital,ClermontFerrand,France.33Hepato-BiliaryandPancreaticSurgicalUnit,IRCAD-IHU,Strasbourg,France.4DepartmentofDigestiveSurgery,Hepato-Pancreato-BiliarySurgery,andLiverTransplantation,Henri-MondorHospital,AP-HP,Creteil,France.5DepartmentofDigestiveSurgery,Hepato-Pancreato-BiliarySurgery,andLiverTransplantation,Henri-MondorHospital,AP-HP,Créteil,France.6DepartmentofDigestiveSurgery.GeorgePompidouEuropeanHospital,Paris,France.7Hepato-BiliaryandPancreaticSurgicalUnit,IRCAD-IHU,UniversityofStrasbourg,Strasbourg,France.8DepartmentofDigestive,Oncological,Endocrine,andHepaticSurgery,andHepaticTransplantation.TrousseauHospital,Tours,France.9DepartmentofDigestiveSurgery,EstaingUniversityHospital,Clermont-Ferrand,ClermontFerrand,France

P046 Lowanteriorresectionsyndromeandqualityoflifeaftersphinctersparingrectalcancersurgery:Along-termlongitudinalfollow-up

EmilPieniowski1,2,GabriellaPalmer1,ThereseJuul3,PernillaLagergren1,AsifJohar1,KatrineEmmertsen3,4,CarolineNordenvall1,MirnaAbraham-Nordling11DepartmentofMolecularmedicineandSurgery,Stockholm,Sweden.2DepartmentofSuregery,Södersjukhuset,Stockholm,Sweden.3DepartmentofSurgery,AarhusUniversityHospital,Aarhus,Denmark.4DepartmentofSurgeryK,RegionalHospitalRanders,Randers,Denmark

P047 Lowanteriorresectionsyndrome:arewegettingtothebottomoftheproblemwithTaTME?

ClaudiaReali1,DeborahSKeller2,3,MartaPenna4,RoelHompes51OxfordUniversityHospitals,ChurchillHospital,DepartmentofColorectalSurgery,Oxford,UnitedKingdom.2ColumbiaUniversityMedicalCenter,DivisionofColonandRectalSurgery,NewYork,USA.3UniversityCollegeLondonHospitals,London,UnitedKingdom.4OxfordUniversityHospitals,ChurchillHospitals,DepartmentofColorectalSurgery,Oxford,UnitedKingdom.5UniversityofAmsterdam,TheAcademicMedicalCenter,DivisionofColorectalSurgery,Amsterdam,Netherlands

P048 EvaluatingresponsetosacralnervestimulationinpatientswithLowAnteriorResectionSyndrome:arescoresgoodenough?

InesRubio-Perez,IsabelPascual,SaraGortazar,MarioAlvarez,BegoñaPeinado,JoseLMarijuanHospitalUniversitarioLaPaz,Madrid,Spain

P049 Long-termresultsofsacralnervestimulationforchronicrefractoryconstipation:arepatientssatisfiedwiththerapy?

InesRubio-Perez,SaraGortazar,JennyGuevara,LuisAsensio,MarioAlvarez,JoseLMarijuan,IsabelPascualHospitalUniversitarioLaPaz,Madrid,Spain

P050 RiskfactorsforLowanteriorresectionsyndromeafterrectalcancertreatment

MustafaUygarKalayci1,InancSamilSarici1,MusaDiri1,KemalTurkerUlutas21KanuniSultanSuleymanTrainingandResearchHospitalDepartmentofGeneralSurgery,İstanbul,Turkey.2AntakyaStateHospitalMedicalBiochemistry,Hatay,Turkey

P051 Ananalysisofsurgicaloutcomesforrectalprolapseatasingleinstitution:retrospectiveobservationalstudy

JaeWonShin,SungYubJung,InKeeHong,DooSeokLeeDaehanghospital,Seoul,Korea,Republicof

P052 Asystematicreviewandnetworkmeta-analysiscomparingtreatmentsforfecalincontinence

ConstantinosSimillis,NikhilLal,ChristosKontovounisios,ParisTekkisDepartmentofColorectalSurgery,ChelseaandWestminsterHospitalNHSFoundationTrust,London,UnitedKingdom

P053 “Lowanteriorresectionsyndrome”aftersurgeryforcoloncancer–isrightworsethanleft?

AnnikaSjövall,AnnaMartling,ChristianBuchliKarolinskaInstitutet,Stockholm,Sweden

P054 Amulticentrerandomisedcontrolledtrialcomparingsurgicaltreatmentsforrectalprolapse

JannicaSmedberg1,2,WilhelmGraf3,KlasPekkari1,FredrikHjern11DepartmentofClinicalSciences,DanderydHospital,KarolinskaInstitutet,Stockholm,Sweden.2DepartmentofSurgery,VisbyHospital,Visby,Sweden.3DepartmentofSurgicalSciences,UppsalaUniversityHospital,Uppsala,Sweden

P055 Managementoffaecalincontinenceusingthenovel4stageFINCHStrategy

KellyStackhouse,ElizabethClarson,JodieSmith,RajeevPeravalisandwellandwestbirminghamNHStrust,Birmingham,UnitedKingdom

P056 Atargetedbiofeedbackprogrammeimprovesfunctionaloutcomefollowinglowanteriorresection.

KellyStackhouse,ElizabethClarson,JodieSmith,AndrewTorrence,RajeevPeravaliSandwellandWestbirminghamNHStrust,Birmingham,UnitedKingdom

P057 Isdigitationaseriouscomplaint?

MarijaGačićŠtotl,ValentinSojar,PavleKošorokMedicalCenterIatros,Ljubljana,Slovenia

P058 Assessmentofoutpatientpelvicfloorultrasoundinvestigationsbyspecialistnursetherapists

SaraStrandberg,MariDahlberg,MartinLindsten,PederRogmark,AntoniZawadzki,LouisBankaJohnson,MarianneStarckMalmöUniversityHospital-PelvicFloorCentre,Malmö,Sweden

P059 Ventralsacrocolporectopexywithbiologicalmeshinthetreatmentoftotalrectalprolapsecombinedwithvaginalvaultprolapse

PasqualeTalento,GiovanniFerreri,SimonaMaggiore,EugenioCudazzo,RosaVernaglia,IlariaVecchioni,ValerioAnnessiPelvicFloorCenter,SurgicalDepartment,FranchiniHospital,AUSLReggioEmilia,ReggioEmilia,,Italy

P060 Anastomoticleakageimpairslong-termqualityoflifeafterrectalresection

MaryThan1,StellaDilke2,ChristopherHadjittofi1,AnaWilson2,CarolynneVaizey2,JamesHernon1,PhilTozer2,AdamStearns1,OnbehalfoftheEQuLARStudyGroup1,21Norfolk&NorwichUniversityHospital,Norwich,UnitedKingdom.2StMarkʼsHospital,London,UnitedKingdom

P061 FactorsassociatedwithlowanteriorresectionsyndromeandcomparativeassessmentofthreevalidatedquestionnairesatGreekrectalcancerpatients

GeorgeTheodoropoulos1,ArtemisLiapi2,ConstantinosMavrantonis3,EleniKourkouni41Colorectalunit,1stDepartmentofPropaedeuticsurgery,Athensmedicalschool,Greece,Athens,Greece.21stSurgicalDepartmentoftheGeneralHospitalofAthens,G.Gennimatas,Athens,Greece.36thDepartmentofSurgery,HygeiaHospital,Athens,Greece.4CenterforClinicalEpidemiologyandOutcomesResearch(CLEO),Athens,Greece

P062 Long-termoutcomeaftersegmentalcolonicresectionforslowtransitconstipation

KonstantinosTsimogiannis1,2,UrbanKarlbom1,2,ErikLundin2,WilhelmGraf1,21UppsalaUniversityHospital,Uppsala,Sweden.2InstitutionofSurgicalSciences,Uppsala,Sweden

P063 Long-termoutcomeafterlaparoscopicventralrectopexyforexternalrectalprolapse

AkiraTsunoda,TomokoTakahashi,HiroshiKusanagiKamedaMedicalCenter,Chiba,Japan

P064 BiopsiesinNormalColonsforLooseStools:ShouldthisPracticebeAbandoned?

ClaraMead-Robson,SuzanneTween,SunilaPrasad,SophiaBattle,JenniferDean,FaddyKamel,NigelD'Souza,IanSwiftCroydonUniversityHospital,London,UnitedKingdom

P065 Water-perfusedanorectalmanometryandpull-throughmaneuversareunreliabletechniquesbecausetheyinadvertentlyincreaseanalpressure

MaximevanMeegdenburg,MonikaTrzpis,PaulBroensUniversityMedicalCenterGroningen,Groningen,Netherlands

P066 Long-termboweldysfunctionaftersurgeryforcolorectalcancer

SanneJ.Verkuijl,MonikaTrzpis,EdgarJ.B.Furnée,PaulM.A.BroensUniversityofGroningen,UniversityMedicalCenterGroningen,Groningen,Netherlands

P067 Examinationunderanaestheticisanimportantdiagnostictoolforassessmentofhighgradeinternalrectalprolapse

IanBloomfield1,SharonPrice2,MingshuangDing3,4,ChrisGillespie3,4,AndreaWarwick3,41LoganHospital,Brisbane,Australia.2QEIIJubileeHospital,Brisbane,Australia.3QEIIhospital,Brisbane,Australia.4UniversityofQueensland,Brisbane,Australia

P068 DIETETICSISINTEGRALTOTHECONSERVATIVEMANAGEMENTOFFUNCTIONALDEFAECATORYDISORDERS

SallyCourtice1,MelodyChaussende1,AnitaMohanlal1,LeanneWard1,NicolaWeedon1,AndreaWarwick1,2,ChrisGillespie1,21QEIIJubileeHospital,Brisbane,Australia.2UniversityofQueensland,Brisbane,Australia

P069 AfeasibilitystudyofdynamicMRIenemapouchography–normalvariationinasymptomaticparticipants

GuyWorley1,2,RachelBaldwin-Cleland1,AlisonCorr1,JohnJenkins1,2,OmarFaiz1,2,SueClark1,2,DavidBurling11StMark'sHospitalandAcademicInstitute,London,UnitedKingdom.2DepartmentofSurgeryandCancer,ImperialCollegeLondon,London,UnitedKingdom

P070 MRIdefaecatingpouchography–afeasibilitystudyinasymptomaticparticipants

GuyWorley1,2,RachelBaldwin-Cleland1,AlisonCorr1,JohnJenkins1,2,OmarFaiz1,2,SueClark1,2,DavidBurling11StMark'sHospitalandAcademicInstitute,London,UnitedKingdom.2DepartmentofSurgeryandCancer,ImperialCollegeLondon,London,UnitedKingdom

P071 Biofeedbackiscost-effectiveintreatingfunctionalconstipationandobstructeddefecationsyndrome

WeiLiangLoh1,XinYanYang1,NyeThaneNgo2,CherylinFu1,ChoongLeongTang1,EmileTan11SingaporeGeneralHospital,Singapore,Singapore.2Singapore,Singapore,Singapore

P072 Effectivenessofbiofeedbacktherapyinimprovingsymptomsandqualityoflifeofpatientswithchronicconstipation

XinYanYang,EmileJohnTan,Wei-LiangLohSingaporeGeneralHospital,Singapore,Singapore

P073 QualityoflifeinwomenafterlaparoscopicventralrectopexywithPermacol-biomesh,forrectalprolapse

AntoniZawadzki,MartinLindsten,UrsulaAhoFält,PatriciaMaldonado,SaraStrandberg,MariDahlberg,LouisBankaJohnsonMalmöUniversityHospital-PelvicFloorCentre,SUS,Malmö,Sweden

P074 AretherepatientoroperativefactorsassociatedwithsepticcomplicationfollowingIleocolonicresectionforCrohn'sDisease?–singlecentrecontemporaneouscohort

SamuelAdegbola,KapilSahnan,AnaFareleira,StephenHiles,OmarFaiz,AilsaHart,JanindraWarusavitarneStMark'sHospital,London,UnitedKingdom

P075 Acomparisonofshort-termoutcomesforpatientsundergoingelectivelaparoscopicrighthemicolectomyforcrohn’sdiseaseversuscoloncancerwithinanenhancedrecoveryprogramme

EmmaAnderson1,CraigMackay2,GeorgeRamsay2,CraigParnaby21UniversityofAberdeen,Foresterhill,Aberdeen,UnitedKingdom.2DepartmentofSurgery,AberdeenRoyalInfirmary,Aberdeen,UnitedKingdom

P076 FactorsassociatedwithrequirementofsurgeryinpatientswithCrohn’sdisease

OnurAtakul1,ÖzdalErsoy1,ErenEsen1,IsmailAhmetBilgin2,ErmanAytaç1,VolkanÖzben1,BilgiBaca1,İsmailHamzaoğlu1,TayfunKarahasanoğlu1,HülyaHamzaoğlu1,NurdanTözün11AcıbademMehmetAliAydınlarUniversity,İstanbul,Turkey.2AcıbademMehmetAliAydınlarUniversity,Istanbul,Turkey

P077 Pouchresection–howtoavoidandwhentodecide

TomaszBanasiewicz1,JacekPaszkowski2,ŁukaszKrokowicz1,PiotrKrokowicz1,MaciejBorejsza-Wysocki1,AdamBobkiewicz1,JarosławWalkowiak11PoznanUniversityofMedicalSciences,Poznań,Poland.2PoznanUniversityofMedicalSciences,Poznan,Poland

P078 EffectofantiTNFαonpostoperativeoutcomesafterileocolicresectionforCrohndisease

BenjaminBenichou1,MohamedAmineRahili2,JeanlouisBernard1,XavierHebuterne3,EmmanuelBenizri11DepartementofGeneralandoncologicsurgery,Hôpitaldel'Archet2,Nice,France.2DepartementofGeneralandoncologicsurgery,Hôpitaldel'Archet2,Nice,France.3GastroenterologyandClinicalNutrition,Hôpitaldel'Archet2,Nice,France

P079 Resectionforprimaryileocecalcrohn’sdisease:istemporaryileostomyassociatedwithlesssurgicalrecurrence

RoelBolckmans1,KesharaRatnatunga1,SandeepSingh1,HelenJones1,DakshithaWickramasinghe2,KapilSahnan2,SamuelAdegbola2,DisaKalman3,JanindraWarusavitarne2,PärMyrelid3,BruceGeorge11OxfordUniversityHospitals,Oxford,UnitedKingdom.2StMark'sHospital,London,UnitedKingdom.3LinköpingUniversityHospital,Linköping,Sweden

P080 AnauditofprocessesandoutcomeforemergencycolectomyforcolitisinEnglandandWales:ananalysisofdatafromtheNationalEmergencyLaparotomyAudit

ElaineMBurns1,TomPoulton2,3,ThomasPinkney4,RichardGuy51ImperialCollegeLondon,London,UnitedKingdom.2HealthServiceResearchCentre,NationalInstituteofAcademicAnaesthesia,London,UnitedKingdom.3DepartmentofAppliedHealthResearch,UniversityCollegeLondon,London,UnitedKingdom.4AcademicDepartmentofSurgery,UniversityofBirmingham,Birmingham,UnitedKingdom.5ColorectalDepartment,OxfordUniversityHospitalsNHSFoundationTrust,Oxford,UnitedKingdom

P081 Ilealpouch-analanastomosisforpatientswithulcerativecolitis:functionalresults,qualityoflifeandmorbidityinfollow-upofmorethan10years

LeonardoCarcamo,PaulaMiranda,AlvaroZuñiga,MariaElenaMolina,GonzaloUrrejola,TomasLarach,RodrigoMiguieles,FelipeBellolioPontificiaUniversidadCatólicadeChile,Santiago,Chile

P082 Reviewofsurgicalreferralpathwayforpatientswithacuteseverecolitis

IsmailChaudhry1,BryanChew1,FirasRaheman2,MikeNorwood21UniversityofLeicesterMedicalSchool,Leicester,UnitedKingdom.2UniversityHospitalsofLeicester,Leicester,UnitedKingdom

P083 RiskfactorsforearlypostoperativecomplicationsandlengthofhospitalstayinileocecalresectionandrighthemicolectomyforCrohn’sdisease:Asinglecenterexperience

ChristianGalata1,ChristelWeiss2,JuliaHardt1,SteffenSeyfried1,PeterKienle3,ChristophReißfelder1,KarolineHorisberger41UniversityHospitalMannheim,Mannheim,Germany.2DepartmentofMedicalStatisticsandBiomathematics,MedicalFacultyMannheim,Mannheim,Germany.3TheresienkrankenhausMannheim,Mannheim,Germany.4UniversityHospitalZurich,Zurich,Switzerland

P084 RiskfactorsforearlyendoscopicrecurrenceafterileocecalresectioninCrohn’sdisease

AntoniosGklavas,MargaritaKarageorgou,IraSotirova,GeorgiosExarchos,KonstantinosNastos,DionysiosDellaportas,IoannisPapaconstantinou2ndSurgicalDepartment,NationalandKapodistrianUniversityofAthens,AretaieionHospital,Athens,Greece

P085 Frequencyofendoscopicsurveillanceofthedefunctionedrectum/coloninCrohn’sdisease

1.DanielHancu1,IoannisGkegkes2,BruceGeorge21OxfordUniversityHospitals,Oxford,UnitedKingdom.2toOxfordUniversityHospitals,Oxford,UnitedKingdom

P086 Pouchfailuresfollowingrestorativeproctocolectomyinulcerativecolitis

IlonaHelavirta1,MarjaHyöty1,KirsiLehto1,HeiniHuhtala2,PekkaCollin3,PetriAitola31TampereUniversityHospital,Tampere,Finland.23SchoolofHealthSciences,UniversityofTampere,Tampere,Finland.3UniversityofTampere,Tampere,Finland

P087 SevereanemiaincreasestheriskofpostoperativemorbidityinpatientsundergoingsurgeryforcolonicCrohn’sdisease

IgorsIesalnieks1,AntoninoSpinelli2,MatteoFrasson3,HoreshNir4,AlaaEl-Hussuna51KlinikumBogenhausen,Munich,Germany.2HumanitasClinicalandResearchCenter,Milan,Italy.3LaFeUniversityandPolytechnicHospital,Valencia,Spain.4ChaimShebaMedicalCenter,RamatGan,Israel.5AalborgUniversityHospital,Aalborg,Denmark

P088 STAT1signalpathwayisassociatedwithinflammatoryboweldisease

ShuheiKii1,2,HidemitsuKitamura2,YujiroToyoshima1,NaokiOkada1,2,KoSugiyama1,2,HuihuiXiang2,FutoshiKawamata1,YosukeOhno1,NobukiIchikawa1,TadashiYoshida1,ShigenoriHomma1,HidekiKawamura1,NorihikoTakahashi1,AkinobuTaketomi11DepartmentofGastroenterologicalSurgeryI,HokkaidoUniversityGraduateSchoolofMedicine,Sapporo,Japan.2DivisionofFunctionalImmunology,SectionofDiseaseControl,InstituteforGeneticMedicine,HokkaidoUniversity,Sapporo,Japan

P089 Laparoscopicsurgeryforinflammatoryboweldisease–tenyearsexperience

EvaKoblihova,MojmirKasalickyCentralMilitaryandUniversityHospital,Prague,CzechRepublic

P090 Donorscreeningforfaecalmicrobiotatransplantation

SabrinaJustKousgaard1,2,KarinaFrahmKirk3,HansLindeNielsen4,OleThorlacius-Ussing1,21DepartmentofGastrointestinalSurgery,AalborgUniversityHospital,Aalborg,Denmark.2DepartmentofClinicalMedicine,AalborgUniversityHospital,Aalborg,Denmark.3DepartmentofInfectiousDiseases,AalborgUniversityHospital,Aalborg,Denmark.4DepartmentofClinicalMicrobiology,AalborgUniversityHospital,Aalborg,Denmark

P091 SigmoidostomyorHartmann’sprocedureafterlaparoscopicsubtotalcolectomyforinflammatoryboweldisease?Acase-matchedstudyin170consecutivepatientsfrom6europeancentres.

DianeMège1,WillemBemelman2,GianlucaSampietro3,JanindraWarusavitarne4,AntoninoSpinelli5,AndréD'Hoore6,YvesPanis11BeaujonHospital,Clichy,France.2AMC,Amsterdam,Netherlands.3LuigiSaccoUniversityHospital,Milan,Italy.4SaintMark'sHospital,Harrow,UnitedKingdom.5Humanitas,Milan,Italy.6UniversityHospitalLeuven,Leuven,Belgium

P092 Laparoscopicsubtotalcolectomywithdouble-endileo-sigmoidostomyinrightiliacfossafacilitatesecondstepofileorectalorilealpouch-analanastomosis:abicentricstudyin213consecutivepatientswithinflammatoryboweldisease.

DianeMège1,AliceFrontali1,GianlucaPellino2,SamuelAdegbola2,LéonMaggiori1,JanindraWarusavitarne2,YvesPanis11BeaujonHospital,Clichy,France.2StMark'sHospital,Harrow,UnitedKingdom

P093 Presentationsandaetiologiesofacutecolitis:aprospectivecohortstudy

JeremyMeyer,VaihereDelaune,AlexandreBalaphas,RenziGuesele,NicolasChristianBuchs,PhilippeBichard,PhilippeMorel,JacquesSchrenzel,Jean-LouisFrossard,FrédéricRisHôpitauxUniversitairesdeGenève,Genève,Switzerland

P094 DeltaalbuminisabetterprognosticmarkerforcomplicationsfollowinglaparoscopicintestinalresectionforCrohn'sdiseasethanalbuminalone

CatharinaMüller,AntonStift,StanislausArgeny,MichaelBergmann,MichaelGnant,SebastianMarolt,LukasUnger,StefanRissMedicalUniversityofVienna,Vienna,Austria

P095 Useandsuccessofinvitrofertilizationinwomenfollowingrestorativeproctocolectomyandilealpouch-analanastomosis.Anationwide14-yearcohortstudy

FrederikRønnePachler1,GunnarToft2,ThueBisgaard3,SørenLaurberg11ColorectalSurgicalUnit,AarhusUniversityHospital,AarhusC,Denmark.2DepartmentofClinicalEpidemiology,AarhusUniversityHospital,AarhusC,Denmark.3Gastrounit,SurgicalDivision,CentreforSurgicalResearch,HvidovreHospital,UniversityofCopenhagen,Hvidovre,Denmark

P096 Fertilityinpatientswithfailureofrestorativeproctocolectomyforulcerativecolitis

FrederikRønnePachler,AndersMark-Christensen,SørenLaurbergColorectalSurgicalUnit,AarhusUniversityHospital,AarhusC,Denmark

P097 RoutineBiopsyForMicroscopicColitis:WorththeCost?

SophiaBattle,SunilaPrasad,SuzanneTween,ClaraMeadrobson,JenniferDean,FaddyKamel,NIgelD'Sou,IanSwiftCroydonUniversityHospital,London,UnitedKingdom

P098 PostoperativecomplicationsinIBDpatients:whatareweworriedabout?ANationalSurvey

LuisSánchez-Guillén1,FranciscoBlanco-Antona2,BeatrizEspina-Pérez3,CarlosJavierGómez-Díaz4,MontserratGuasch-Marcé5,FranciscoLópez-Rodríguez-Arias1,AntonioArroyo1,MonicaMillán31UniversityHospitalElche,Elche,Spain.2UniversityHospitalValladolid,Valladolid,Spain.3UniversityHospitalJoanXXIII,Tarragona,Spain.4HospitalSanJoandeMartorell,Barcelona,Spain.5HospitalSanJorge,Huesca,Spain

P099 ThetherapiescontrollingpostoperativesurgicalrecurrenceinCrohn’sdisease

MasaruShinozakiTheInstituteofMedicalScience,theUniversityofTokyo,Tokyo,Japan

P100 DoescessationofsmokingreducesurgicalrecurrenceafterprimaryileocolicresectionsforCrohn’sdiseaseinlong-term

SandeepSingh1,DisaKalman2,RoelBolckmans1,KesharaRatnatunga1,HelenJones1,AntonRisto2,RichardGuy1,BruceGeorge1,PärMyrelid21OxfordUniversityHospital,Oxford,UnitedKingdom.2LinköpingUniversityHospital,Linköping,Sweden

P101 Usingpatient’spreferenceinrandomizedcontrolledtrials

KarinWasmann1,PietaWijsman2,SusanvanDieren3,WillemBemelman1,ChristianneBuskens11departmentofsurgery,AMC,Amsterdam,Netherlands.2Departmentofinternalmedicine,SpaarneGasthuis,Hoofddorp,Netherlands.3Departmentofepidemiology,AMC,Amsterdam,Netherlands

P102 IleostomyreversalfollowingsurgeryforCrohnsdiseaseisunaffectedbysmoking,opensurgeryorperi-analdisease–atertiarycentreexperience.

DakshithaWickramasinghe1,2,SamuelAdegbola1,KapilSahnan1,MiguelLantaro1,JanindraWarusavitarne11St.Mark'shospital,London,UnitedKingdom.2FacultyofMedicine,UniversityofColombo,Colombo,SriLanka

P103 Determiningthepredictorsof30-dayreadmissionfollowingileo-cecalsurgeryinpatientswithCrohn’sdisease

DakshithaWickramasinghe1,2,KapilSahnan1,SamuelAdegbola1,MiguelLantaro1,JanindraWarusavitarne11St.Mark'shospital,London,UnitedKingdom.2FacultyofMedicine,UniversityofColombo,Colombo,SriLanka

P104 PredictingthelengthofstayaftersurgeryforCrohnsdisease

DakshithaWickramasinghe1,2,MiguelLantaro1,SamuelAdegbola1,KapilSahnan1,JanindraWarusavitarne11St.Mark'shospital,London,UnitedKingdom.2FacultyofMedicine,UniversityofColombo,Colombo,SriLanka

WP11 Anationwidecohortstudyofthecumulativeriskofcolectomyafteremergencyhospitaladmissionforulcerativecolitis

GuyWorley1,2,AlanAskari1,2,JonathanSegal1,2,OmarFaiz1,21StMark'sHospitalandAcademicInstitute,London,UnitedKingdom.2DepartmentofSurgeryandCancer,ImperialCollegeLondon,London,UnitedKingdom

P106 Prospectiveevaluationofaccuracyinthediagnosisofbenignanorectalconditionsbycliniciansandmedicalstudents

TanvirAbbass1,JohnCamilleri-Brennan1,21ForthValleyRoyalHospital,Stirlingshire,UnitedKingdom.2UniversityofGlasgow,Glasgow,UnitedKingdom

P107 TacticalPPIforTACTIC-anileostomyclosuretrial

VallanceAbigail,MatthewLee,Vaughan-ShawPeter,DeenaHarji,NicolaFearnheadBDRF,London,UnitedKingdom

P108 Theroleofendoscopicinterventionsandelectroincisioninbenignanastomoticstricturesfollowingcolorectalsurgery

TuranAcar1,FatihAslan2,NihanAcar1,ErdinçKamer1,BelkısÜnsal1,MehmetHaciyanli11İzmirKatipÇelebiUniversityAtatürkTrainingandResearchHospital,İzmir,Turkey.2KocUniversity,İzmir,Turkey

P109 OUTCOMESOFLOOPILEOSTOMYCLOSUREBYDIFFERENTMETHODS

SergeiAchkasov,OlegSushkov,AlexeyMoskalev,IvanLantsovStateScientificCentreofColoproctologynamedafterA.N.Ryzhih.,Moscow,RussianFederation

P110 AcolorectalperspectiveonmanagementofHidradenitisSuppurutiva

SamuelAdegbola,KapilSahnan,NikhilPawa,DimitriosPatsouras,RobinPhillips,PhilipTozerStMark'sHospital,London,UnitedKingdom

P111 Preliminaryresultsofrandomizedtrialofstudyofperfusionofcolorectalanastomosisusingfluorescenceangiography

MikhailAlekseev1,2,EvgenyRybakov1,YuryShelygin11StateScientificCentreofColoproctology,Moscow,RussianFederation.2RussianMedicalAcademyofPostgraduateEducation,Moscow,RussianFederation

P112 Aggressiveangiomyxomaoftheperineumandlowerpelvis:caseseriesandliteraturereview

IgnacioAguirreAllende,GaraziElorzaEchaniz,LeyreVelazPardo,MikelOsorioCapitán,CarlosPlacerGalan,JoseMariaEnriquezNavascuesHospitalUniversitarioDonostia,SanSebastian,Spain

P113 Couldhyponatremiabeanindicatorofcolorectalanastomoticleak?

AhmadAlsaleh1,OlliverWaren1,SarahMills1,ParisTekkis2,1,3,ChristosKontovounisios2,3,11ChelseaWestminsterhospital,London,UnitedKingdom.2DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.3RoyalMarsdenhospital,London,UnitedKingdom

P114 CanWePredictandPreventSurgicallyComplicatedDiverticulitis?

YUKSELALTINEL1,RONALDBLEDAY2,MARCRUBIN3,ROCCORICCIARDI1,TODDFrancone4,LilianaBordeianou11MASSACHUSETTSGENERALHOSPITAL,BOSTON,USA.2BRIGHAMANDWOMENS'HOSPITAL,BOSTON,USA.3NorthShoreMedicalCenter,BOSTON,USA.4Newton-WellesleyHospital,BOSTON,USA

P115 oneyearsurvivalfollowingemergencycolectomy

SamimAl-Zubadi,AnisaKushari,AbeedChowdhury,AvinderChana,J.ASimpson,VictoriaBanks,AyanBanerjea,DavidHumesNottinghamColorectalService,Nottingham,UnitedKingdom

P116 Isadischargeatday3aftercolectomyor5afterrectalresectionsafe?AProspectivecohortof145patientsincludedinanEnhancedrecoveryprogram.

MorganAnyla1,JeremieH.Lefevre2,ConorShields2,anaisLaforest2,christopheGutton3,EmmanuelTiret4,ThomasLescot2,YannParc21HôpitalSaint-Antoine,paris,France.2HôpitalSaint-Antoine,Paris,France.3HôpitalSaint-Antoine,ParisArea,France,France.4HôpitalSaint-Antoine,PAris,France

P117 Safeadoptionofroboticcolorectalsurgeryusingstructuredtraining:earlyIrishexperience

MohammedAradaib1,2,PaulNeary1,AdnanHafeez1,RezaKalbassi1,AmjadParvaiz3,2,4,DiarmuidO'Riordain11BeaconHospital,Dublin,Ireland.2UniversityofPortsmouth,Portsmouth,UnitedKingdom.3ChampalimaudFoundation,Lisbon,Portugal.4PooleHospitalNHS,Poole,UnitedKingdom

P118 ColonoscopyqualityassuranceinIrishhospitals:isparticipatinginqualityimprovementprogramsbeneficial?

MohammedAradaib1,2,RezaKalbassi11BeaconHospital,Dublin,Ireland.2UniversityofPortsmouth,Portsmouth,UnitedKingdom

P119 Ararecauseoflowergastrointestinalbleeding:acasereportofmidgutmalrotationinanadultpatient

MohammedAradaib1,2,DiarmuidO'Riordain11BeaconHospital,Dublin,Ireland.2UniversityofPortsmouth,Portsmouth,UnitedKingdom

P120 Woundinfectioninelectivecolorectalresectionbyusingadouble-ringwound-edgeprotectiondevice

JuanJArenal1,2,JohnH.Herrera1,ClaudiaTinoco3,CésarBenito2,MiguelA.Citotes2,CarmenBenito4,JoséM.Eiros2,51HospitalRecoletasCampoGrande,Valladolid,Spain.2HospitalUniversitarioRíoHortega,Valladolid,Spain.3HospitalUniversitarioRíoHortega,Valadolid,Spain.4FacultaddeMedicina.UniversidaddeValladolid,Valladolid,Spain.5UniversityofValladolid,Valladolid,Spain

P121 Morbidityandmortality:learningfrom‘freelessons’throughanovelA-Zapproach

JamesAshcroft1,2,DuncanAlston1,JohnPlatt11WestMiddlesexUniversityHospital,ChelseaandWestminsterHospitalNHSFoundationTrust,Isleworth,London,UnitedKingdom.2ImperialCollegeLondon,London,UnitedKingdom

P122 Anewtechniqueofcompletelydivertedtubeileostomyforprotectionofcolorectalanastomosis

WafiAttaallah,AlisinaBulut,TevfikKivilcimUprak,CumhurYegenMarmaraUniversitySchoolofMedicine,DepartmentofGeneralSurgery,Istanbul,TURKEY,Istanbul,Turkey

P123 Treatmentofmilduncomplicatedacutediverticulitiswithoutantibiotics:asystematicreviewandmeta-analysis

StephanieAu1,EmadAly21RoyalInfirmaryofEdinburgh,Edinburgh,UnitedKingdom.2AberdeenRoyalInfirmary,Aberdeen,UnitedKingdom

P124 Medicalnutritiontherapyandperioperativecomplications:aprospectivenon-interventionalstudyincorporatingmobiletechnologies

TomaszBanasiewicz1,WojciechFrancuzik2,KrzysztofŁuczak3,PiotrPiątek41PoznanUniversityofMedicalSciences,Poznan,Poland.2KlinikfürDermatologie,VenerologieundAllergologie;CharitéUniversitätsmedzin,Berlin,Germany.3UniversityofEconomy,Poznan,Poland.4MedigentFoundation,Poznań,Poland

P125 Medigent.leakapplication–first300colorectalpatientsinadvancedsmartphoneappforcalculationtheriskofleak,datacollectionandregistryofcomplications

TomaszBanasiewicz1,WojciechFrancuzik2,KrzysztofŁuczak3,AdamDziki4,PawełLampe5,ZbigniewLorenc5,MarekSzczepkowski6,JacekZieliński7,MarekZawadzki8,PawełBury9,JacekDziedzic9,PiotrPiątek10,GrzegorzWallner91PoznanUniversityofMedicalSciences,Poznan,Poland.2KlinikfürDermatologie,VenerologieundAllergologie;CharitéUniversitätsmedzin,Berlin,Germany.3UniversityofEconomy,Poznań,Poland.4MedicalUniversity,Łódź,Poland.5MedicalUniversity,Katowice,Poland.6CenterofPostgraduateMedicalEducation,Warsaw,Poland.7MedicalUniversity,Gdańsk,Poland.8CenterofRoboticSurgery,Poznań,Poland.9MedicalUniversity,Lublin,Poland.10MedigentFoundation,Poznań,Poland

P126 NPWT–methodfortreatmnetofcomplicatedstoma

TomaszBanasiewicz,JacekPaszkowski,ŁukaszKrokowicz,MaciejBorejsza-Wysocki,AdamBobkiewiczPoznańMedicalUniversityofMedicalSciences,Poznań,Poland

P127 Routinehistopathologicalexaminationofappendectomyspecimens:asystematicreview

VivianBastiaenen,WiesAllema,CharlotteKlaver,PieterTanis,WillemBemelmanDepartmentofSurgery,AcademicMedicalCenter,Amsterdam,Netherlands

P128 Effectofclosedincisionnegativepressurewoundtherapyonincidencerateofsurgicalsiteinfectionafterstomareversal:apreliminaryreport

AdamBobkiewicz1,WojciechFrancuzik2,LukaszKrokowicz1,MaciejBorejsza-Wysocki1,DominikWalczak3,JacekSzmeja1,TomaszBanasiewicz11DepartmentofGeneral,EndocrinologicalSurgeryandGastroenterologicalOncologyPoznanUniversityofMedicalSciences,Poznan,Poland.2DepartmentofDermatology,VenerologyandAllergologyCharité-Universitätsmedizin,Berlin,Germany.3DepartmentofOncologicalandReconstructiveSurgery,TheMariaSklodowska-CurieMemorialCancerCenterandInstituteofOncology,Gliwice,Poland

P129 Non-cancercolorectalmultidisciplinarymeetingimprovespatientcareandcontributestoamoreeffectivecolorectalcancerMDT

GeorgiosBointas1,YasukoMaeda1,2,3,AshishSinha1,2,3,TusharAgarwal1,2,31EalingHospital,Southall,UnitedKingdom.2StMark'sHospital,Harrow,UnitedKingdom.3ImperialCollege,London,UnitedKingdom

P130 Worththewait:aclosed-loopauditconfirmingtheneedforpreoperativeimaginginappendicitis

AnnaBorissova1,AlexanderHotouras2,PallaviHumaArya1,JonjoMiller3,IsaOuwehand3,FrancesHughes11RoyalLondonHospital,London,UnitedKingdom.2WhippsCrossHospital,London,UnitedKingdom.3BartsandtheLondonMedicalSchool,London,UnitedKingdom

P131 Mechanicalbowelpreparation(MBP)decreasespostoperativeanastomoticleakratetothesameextentafterbothrightandleftcolectomies

MarkusBormann,IrmgardWeindl,AymanAgha,IgorsIesalnieksKlinikumBogenhausen,Munich,Germany

P132 Systematicreviewofpsychologicaleffectsofemergencylaparotomy

KathrynBoyce1,AnnaPowellChandler2,JulieCornish11UniversityHospitalofWales,Cardiff,UnitedKingdom.2WalesDeanery,Cardiff,UnitedKingdom

P133 Cytomegalovirusandhumanherpesvirus6inthedevelopmentofacuteappendicitisinchildren

MarjolijnTimmerman1,AnneliesRiezebos-Brilman2,MonikaTrzpis1,PaulBroens11UniversityofGroningen,UniversityMedicalCenterGroningen,Groningen,Netherlands.2UniversityMedicalCenterUtrecht,Utrecht,Netherlands

P134 Intracorporeallaparoscopicanastomosesinsegmentalcolonicresections–asinglecenterretrospectivestudy

MusaBüyükuslu1,ThomasBuchbjerg2,LasseBugge2,MarkEllebæk31DepartmentofSurgery,HospitalSouthWestJutland,Esbjerg,Denmark.2DepartmentofSurgery,SvendborgHospital,Svendborg,Denmark.3DepartmentofSurgery,OdenseUniversityHospital,Odense,Denmark

P135 COMPARATIVESTUDYOFPERIOPERATIVECOMPLICATIONSINPATIENTSWITHANDWITHOUTPLACEMENTOFCOLONICSTENT

AnaCabrera1,JonásGarcía1,ValentinaSosa1,ElenaPérez1,AlteaArango1,AnazazuAlvarez2,JoséPérezPariente2,CarlosAlvarezLaso1,EusebioMosquera11ServiciodeCirugía.HospitalUniversitariodeCabueñes,Gijón,Spain.2ServiciodeDigestivo.HospitalUniversitariodeCabueñes,Gijón,Spain

P136 GHOSTVERSUSLATERALILEOSTOMY.INDICATIONANDMORBIDITYCOMPARISON

ValentinaSosa,AnaCabrera,JonásGarcía,ElenaPérez,AlteaArango,HelenaPadín,CarlosAlvarez,JoseIgnacioRodríguezServiciodeCirugía.HospitalUniversitariodeCabueñes,Gijón,Spain

P137 3DPRINTEDDEVICESUSEINTRANSANALENDOSCOPICAPPROACH.ACASESERIES.

AnaCabrera1,ValentinaSosa1,MartaVillazón2,JoséManuelSierra2,ElenaPérez1,JoséLuisCortizo2,AlteaArango1,JoséIgnacioRodríguez11ServiciodeCirugía.HospitalUniversitariodeCabueñes,Gijón,Spain.2EscuelaPolitécnicadeIngenieríadeGijón.UniversidaddeOviedo,Gijón,Gijón,Spain

P138 IMPLEMENTATIONOFAENHANCEDRECOVERYPROGRAM(ERAS)AFTERCOLORECTALSURGERY.PROBLEMSANDPOSSIBLESOLUTIONS.IFERASISBENEFICIAL,WHYISNOTTHESTANDARDOFCARE?

CarmenCagigas-Fernandez1,2,LidiaCristobal-Poch1,2,MarcosGomez-Ruiz1,2,SoniaCastanedo-Bezanilla1,TamaraFernandez-Miguel1,ManuelGomez-Fleitas1,2,3,JuliodelCastillo-Diego1,21HospitalUniversitarioMarquésdeVadecilla,Santander,Spain.2IDIVAL,Santander,Spain.3UniversidaddeCantabria,Santander,Spain

P139 ERASPROGRAMANDMINIMALLYINVASIVESURGERY(MIS).EVIDENCEOFAGOODFRIENDSHIP.

LidiaCristobal-Poch1,2,CarmenCagigas-Fernandez1,2,MarcosGomez-Ruiz1,2,SoniaCastanedo-Bezanilla1,ManuelGomez-Fleitas1,2,3,JulioDelCastillo-Diego1,21HospitalUniversitarioMarquesdeValdecilla,Santander,Spain.2IDIVAL,Santander,Spain.3UniversidaddeCantabria,Santander,Spain

P140 QUALITYOFCARESURVEYWITHINTHEERASPROGRAMAFTERCOLORECTALSURGERYANDHOMEHOSPITALIZATIONCARE(HHC)

LidiaCristobal-Poch1,CarmenCagigas-Fernandez1,2,SoniaCastanedo-Bezanilla1,TamaraFernandez-Miguel1,MarcosGómez-Ruiz1,2,MarcosPajaron-Guerrero1,ManuelGómez-Fleitas1,2,3,JuliodelCastillo-Diego1,21HospitalUniversitarioMarquésdeValdecilla,Santander,Spain.2IDIVAL,Santander,Spain.3UniversidaddeCantabria,Santander,Spain

P141 IsreoperationforHartmann’sreversalafterfailureofpreviouscolorectalorcoloanalanastomosisreasonable?Ananalysisof43consecutiveprocedures.

ClémentineCaille,MaximeCollard,LéonMaggiori,DavidMoszkowicz,YvesPanisBeaujonHospital,Clichy,France

P142 COMPARATIVESTUDYOFTHECLOSURETECHNIQUEOFLOOPILEOSTOMYINOURCENTERINASERIESOF157PATIENTSINFOR4CONSECUTIVEYEARS

SoniaCastanedo-Bezanilla1,TamaraFernandez-Miguel1,CarmenCagigas-Fernandez1,2,MarcosGomez-Ruiz1,2,JoaquinAlonso-Martin1,2,ManuelGómez-Fleitas1,2,3,JuliodelCastillo-DIego1,21HospitalUniversitarioMarquésdeValdecilla,Santander,Spain.2IDIVAL,Santander,Spain.3UniversidaddeCantabria,Santander,Spain

P143 Diagnosticprofitabilityofcolonoscopytoruleoutcoloncancerafteranepisodeofacutediverticulitis.

PabloMuriel-Álvarez,CarlosCerdán-Santacruz,MireiaMerichal-Resina,NuriaMestres-Petit,AnaPinillos-Somalo,ElenaCuello-Guzmán,JaumeOrtega-Alcaide,JoséEnriqueSierra-Grañón,JorgeJuanOlsina-KisslerHospitalUniversitarioArnaudeVilanova,Lleida,Spain

P144 Whatistheoutcomeofapostoperativedrainageforlowcolo-rectalorcolo-analanastomosisleakages?Aprospectivecohortof43patients.

AlexandreChalline,JeremieH.Lefevre,NajimChafai,ClotildeDebove,EmmanuelTiret,YannParcHopitalSaint-Antoine,Paris,France

P145 Developmentanddeliveryofastandardisedinvestigatortrainingpackageforamulticentreinterventionaltrialacrosslow,middleandhighincomesettings

GlobalSurgCollaborativeNIHRUnitonGlobalSurgery,Birmingham,UnitedKingdom

P146 LaparoscopiccolorectalsurgeryandEnhancedRecoveryAfterSurgery(ERAS)intheelderly

CorradoPedrazzani,CristianConti,GiuliaTurri,AlfredoGuglielmiAOUIVerona,Verona,Italy

P147 3DModellingofpelvicanatomyforcolorectalcancerstaginganddynamicfunctionsimulation

ChristosKontovounisios1,2,3,SethCox3,NasirKhan3,ParisTekkis1,2,3,FernandoBello11DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.2RoyalMarsdenhospital,London,UnitedKingdom.3ChelseaWestminsterhospital,London,UnitedKingdom

P148 AnAuditoftheUseofMechanicalBowelPreparationinCombinationwithOralAntibioticsforElectiveColorectalResection

JoannaCraven,PraneshNagarajan,AhsanJavedWarringtonHospital,Warrington,UnitedKingdom

P149 Individualisedpredictionofprehabilitationwindowbeforecolorectalcancerresectionusingartificialneuralnetworks

NathanCurtis1,2,EmadSalib3,DanielHashimoto4,GodwinDennison1,NaderFrancis1,51YeovilDistrictHospital,Yeovil,UnitedKingdom.2ImperialCollegeLondon,London,UnitedKingdom.3UniversityofLiverpool,Liverpool,UnitedKingdom.4MassachusettsGeneralHospital,Boston,USA.5UniversityofBath,Bath,UnitedKingdom

P150 PeculiaritiesofrecoverysurgeriesinpatientswithcoloninjuriesacrossthewarconflictinUkraine

DmytroDavydchuk,OlenaUmanets,OleksiyOssovskiy,EugeneTsema,VladislavNechay,AlexanderBiba,RuslanPalienkoNationalMilitaryMedicalClinicalCenterofMinistryofDefenseofUkraine,Kyiv,Ukraine

P151 Non-operativelytreatedappendicitis;theneedforintervalappendectomyandriskofneoplasms

JoskedeJonge1,MatthijsD.M.Bolmers1,GijsbertD.Musters2,CharlesC.vanRossem3,WillemA.Bemelman2,AnnaA.W.vanGeloven11TergooiHospital,Hilversum,Netherlands.2AcademicMedicalCenter,Amsterdam,Netherlands.3MaasstadHospital,Rotterdam,Netherlands

P152 Discrepanciesbetweenintraoperativeandhistologicalevaluationoftheappendixinacuteappendicitis.

JoskedeJonge1,MatthijsD.M.Bolmers1,CharlesC.vanRossem2,AnnaA.W.vanGeloven1,WillemA.Bemelman31TergooiHospital,Hilversum,Netherlands.2MaasstadHospital,Rotterdam,Netherlands.3AcademicMedicalCenter,Amsterdam,Netherlands

P153 Comparisonbetweenbiologicmeshandcurrentmanagementoftheopenabdomeninnon-traumaemergencypatients

FleurdeVries1,JasperAtema1,JeroenClaessen1,GijsvanAcker2,CarolineAndeweg3,EricBelt4,WillemBemelman1,MarcusBrouwers5,EstherContsten6,SebastiaanFesten7,TjardavanHeek8,TomKarsten7,FlipKruyt8,BasLamme4,EricManusama9,JohnMaring10,WillemSteup5,JanStoot11,PieterTanis1,WillemvanTets7,TammodeVries-Reilingh12,DaniaWasowicz10,JohannesWegdam12,MarinkeWesterterp2,OddekevanRuler13,MarjaBoermeester11AMC,Amsterdam,Netherlands.2MCHaaglanden,DenHaag,Netherlands.3StJansdal,Harderwijk,Netherlands.4ASZ,Dordrecht,Netherlands.5HagaZiekenhuis,DenHaag,Netherlands.6Meander,Amersfoort,Netherlands.7OLVG,Amsterdam,Netherlands.8GelderseVallei,Ede,Netherlands.9MCL,Leeuwarden,Netherlands.10ETZ,Tilburg,Netherlands.11Zuyderland,Sittard,Netherlands.12Elkerliek,Helmond,Netherlands.13IjssellandZiekenhuis,Capellea/dIjssel,Netherlands

P154 Continuousversusintermittentvitalsignsmonitoringinpatientsadmittedtosurgicalwards:acluster-randomised,controlledtrial

CandiceDowney1,RebeccaRandell1,JuliaBrown2,DavidJayne11UniversityofLeeds,Leeds,UnitedKingdom.23.LeedsInstituteofClinicalTrialsResearch,Leeds,UnitedKingdom

P156 VariationinLandmarksfortheRectum:AnMRIStudy

NigelD'Souza1,2,SvetlanaBalyasnikova1,AmyLord2,1,AnnabelShaw2,1,VeraTudyka3,MutiAbulafi2,ParisTekkis1,GinaBrown11RoyalMarsdenHospital,London,UnitedKingdom.2CroydonUniversityHospital,London,UnitedKingdom.3KingstonHospital,London,UnitedKingdom

P157 Anovelviewonthevariantanatomyoftheinferiormesentericartery

SergeyEfetov,KirillSeurko,NoraOganyan,KarinaKochneva,LudmilaSidorova,InnaTulina,KirillPusakov,PetrTsarkovClinicofcolorectalandminimallyinvasivesurgerySechenovFirstMoscowStateMedicalUniversity,Moscow,RussianFederation

P158 RoutinefollowupendoscopyinCTprovenacutesigmoiddiverticulitis.Isendoscopicassessmentnecessaryintheeraofhighresolutionimaging?

AhmedElHadi1,QubekaniMoyo2,AndrewGales1,RjustinDavies1,JamesWheeler11CambridgeColorectalUnit,Addenbrooke`sHospital,Cambridge,UnitedKingdom.2UniversityofCambridge,Cambridge,UnitedKingdom

P159 Avoidingileocolicvesselinjuryinthesecondstageofathree-stageilealpouchanalanastomosis:anobservationalstudy

AHMEDABOU-ZEID1,ISLAMELABBASSY1,2,AHMEDKHALIL1,MAHMOUDFARGHALY1,SHERIFBORAEI31AinShamsUniversity,Cairo,Egypt.2QueenElizabethTheQueenMotherHospital,Margate,UnitedKingdom.3NationalHepatologyandTropicalMedicineresearchInstitute,Cairo,Egypt

P160 Overlaprepairofisolatedinternalanalsphincterinjury:successandfailure

MohamedNada1,ISLAMELABBASSY1,21AinShamsUniversity,Cairo,Egypt.2QueenElizabethTheQueenMotherHospital,Margate,Kent,UnitedKingdom

P161 Concomitantcolorectalcancerwithaorticandbilateraliliacaneurysms–araresurgicaldilemma.

MohamadEl-Farran,DanielGearon,ArshadMalikIpswichHospital,Ipswich,UnitedKingdom

P162 Sublayoverlappingsplitmesh(SOSM)incisionalherniarepair

HazimEltyeb,MarkKatory,PaulOloughlinQueenElizabethHospital,Gateshead,UnitedKingdom

P163 Acomparisonofanastomoticleakratefollowingend-sidehandsewn(ESHS)versusstapledfunctionalendanastomosis(SFE)withlaparoscopicrighthemicolectomy

HazimEltyeb,MoFagger,PaulO'loughlin,MarkEltringham,MarkKatoryQueenElizabethHospital,Gateshead,UnitedKingdom

P164 AprospectivecohortstudyexaminingtheusefulnessoftheSEPSIS-3guidelinesinpatientsundergoingmajorabdominalsurgery

WilliamEnglish1,2,KathrynWaller3,PolychronisKemos3,AlexanderHotouras1,2,CharlesKnowles1,2,WilliamAlazawi1,31RoyalLondonHospital,BartsHealthNHSTrust,London,UnitedKingdom.2NationalBowelResearchCentre,BlizardInstitute,London,UnitedKingdom.3CentreforImmunobiology,BlizardInstitute,London,UnitedKingdom

P165 Atailoredprehabilitation-ERASprogrammeimprovespostoperativeoutcomesinelderlypatientswithcolorectalcancer

BeatrizEspina-Perez,AleidisCaro-Tarrago,AnnaVallverdu-Rivero,FrancescFeliu-Villaro,JordiEscuder-Perez,TeresaSole-Baiges,RosaJorba-Martin,MonicaMillan-ScheidingJoanXXIIIUniversityhospital,Tarragona,Spain

P166 Surgicalmanagementofdeeppelvicendometriosiswithinvolvementoftherectum

EduardoMordojovich1,LeonardoEspindola2,ErnestoMelkonian2,DaniellaEspinola2,ChristianJensen2,AldoCuneo2,ConstanzaVillalon2,MarcoPuga2,CesarSandoval2,IgnacioMiranda21HospitalPadreHurtado,Santiago,Chile.2ClinicaAlemana,Santiago,Chile

P167 Robot-assistedsigmoidectomyfordiverticulardisease

SofiaEsposito,GiampaoloFormisano,GiuseppeGiuliani,PasqualeMisitano,LuciaSalvischiani,PaoloPietroBianchiMisericordiaHospital,Grosseto,Italy

P168 WilltheSurgeonbecomeindependentoftheGastroenterologist?Intraoperativeevaluationofthecolorectallumen-Aninnovativeandcost-effectivemethod.

EdgarAmorim,MiguelF.Cunha,JuanRachadellCentroHospitalareUniversitáriodoAlgarve,Portimão,Portugal

P169 AfeasabilitystudyoftheenhancedrecoveryprograminanAsianpopulationwithcolorectalcancer.

RidzuanFarouk1,RachaelNakawungu1,AdamAllen21NationalUniversityHospital,Singapore,Singapore.2UniversityofLiverpool,Liverpool,UnitedKingdom

P170 Earlypostoperativeendoscopyofcolorectalanastomosisforanastomoticpathology:aprospectivemulticenterstudy

AlexanderFerko1,JanRejholec2,MatějŠkrovina3,MarekAdámik11DepartmentofSurgery,ComeniusUniversityinBratislava,JesseniusMedicalFacultyMartinandUniversityHospitalMartin,Martin,Slovakia.2DepartmentofGeneralSurgery,RegionalHealthLtd.,HospitalDecin,Decin,CzechRepublic.3DepartmentofSurgery,HospitalNovýJičín,NovýJičín,CzechRepublic

P171 Prioritisingresearchintoareasofunmetclinicalneedrelevanttopatientsundergoingsurgeryinlowandmiddleincomecountries:amodifiedDelphiprocess

.GlobalSurgCollaborativeatNIHRUnitonGlobalSurgeryResearchGlobalSurgCollaborativeatNIHRUnitonGlobalSurgeryResearch,Birmingham,UnitedKingdom

P172 OutpatientManagementofAcuteDiverticulitis

LauraGould,EncarlUppal,ElianaKalakouti,ChetanParmar,ChetanBhanWhittingtonHospital,London,UnitedKingdom

P173 AMBULATORYMANAGEMENTOFUNCOMPLICATEDDIVERTICULITIS:ASystematicReview

NIKOLAOSGOUVAS1,GeorgiosPechlivanides2,PaoloMillo3,EvaghelosXynos41WorcesterRoyalHospital,Worcester,UnitedKingdom.2MetropolitanHospitalofPireaus,Pireaus,Greece.3RegionalHospitalofValeDAosta,Aosta,Italy.4CretaInterClinicHospitalofHeraklion,Heraklion,Greece

P174 C-reactiveproteinmonitoringreducelengthofstayofpatientsundergoinglaparoscopicsphincter-savingsurgeryforrectalcancer.Acase-controlledprospectivestudyin282patients.

ElisabethHain,LéonMaggiori,AnaïsLaforest,JustineProstàlaDenise,YvesPanisBeaujonHospital,Clichy,France

P175 Managementofsigmoidvolvulusinelderlypatients:10-yearSystematicreview

SonalHalai,AlistairSlesser,AlistairMyers,YasserMohsenTheHillingdonHospitalsFoundationTrust,London,UnitedKingdom

P176 Force-basedassessmentoftissuemanipulationskillsinTaTMEtraining

SemF.Hardon1,RheaVanKasteren2,THoreman2,J.BTuynman11DepartmentofGastro-intestinalSurgery,VUUniversityMedicalCenter,Amsterdam,Netherlands.2DepartmentofBioMechanicalEngineering,DelftUniversityofTechnology,Delft,Delft,Netherlands

P177 Anevaluationoftheprevalenceandfactorsassociatedwiththedevelopmentofa“complex”surgicalabdomeninacohortofpatientspresentingtoanationalintestinalfailurecentreforhomeparenteralnutrition

JonathanHodgkinson1,2,SidOke1,2,JanindraWarusavitarne1,2,GeorgeHanna2,SimonGabe1,2,CarolynneVaizey1,21StMark'sHospital,London,UnitedKingdom.2ImperialCollege,London,UnitedKingdom

P178 IsCTimagingusefulintheevaluationoftheabdominalwallpriortocontaminatedcomplexabdominalwallreconstruction?

JonathanHodgkinson1,2,FleurdeVries3,PhillipLung1,JeroenClaessen4,CosimoLeo1,2,RajIlangovan1,RachelBaldwin1,JanindraWarusavitarne1,2,MarjaBoermeester3,CarolynneVaizey1,21StMark’sHospital,London,UnitedKingdom.2ImperialCollege,London,UnitedKingdom.3AcademicMedicalCentre,Amsterdam,Netherlands.4AcademicMedicalCentre,Amsterdam,UnitedKingdom

P179 CanInterferon-γ(IFNγ)improveimmunedysfunctioninsurgicalortraumapatients?Asystematicliteraturereview

AlexHotouras,WilliamEnglish,WillAlazawi,RupertPearce,CharlesKnowlesRoyalLondonHospital,London,UnitedKingdom

P180 Surgicalmanagementofimmune-mediatedcolitis:acaseseries.

ZhenHou,CharlotteKwik,AlexanderMenzies,NeomalSandanayake,StephenTattersall,JustinEvans,AlexanderEngelRoyalNorthShoreHospital,Sydney,Australia

P181 Incidenceofandsurvivalfollowingdiverticularabscess:Apopulation-basedcohortstudyfromEngland

HarmonyOete,ColinCrooks,JoeWest,DvaidHumesUniversityofNottingham,Nottingham,UnitedKingdom

P182 PERipoerativeFluidmanagementinElectiveColecTomy(PERFECT)-anationalsnapshotaudit

IrishSurgicalResearchColaborativeIrelandIrishSurgicalResearchCollaborative,Dublin,Ireland

P183 EarlydiagnosisofpelvicabscessafterHartmann’soperationforrectalcancerwithCRPpostoperativeday2,3and5?

KavehDehlaghiJadid,BayarBaban,NiklasMagnusson,PeterMatthiessenDepartmentofSurgery,ÖrebroUniveristyHospital,Örebro,Sweden

P184 Indicationsandoutcomesofinterventionalradiologyinrelationtoaetiologyofperrectalbleeding

ThomasLeeJeffriesJr1,2,KarYinFok2,RichardMaher2,AlexanderEngel1,21SydneyMedicalSchool,Sydney,Australia.2RoyalNorthShoreHospital,Sydney,Australia

P185 Obturatorhernias:openapproachesvs.laparoscopicmethods

FurqaanKaji1,ManaRahimzadeh1,ParisTekkis2,3,1,ChristosKontovounisios2,3,11ChelseaWestminsterhospital,London,UnitedKingdom.2DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.3RoyalMarsdenhospital,London,UnitedKingdom

P186 Theeffectofcolorectalsurgeryfellowshiponcolorectalcancerpatientstreatedwithlaparoscopicsurgery,theexperienceofageneralsurgeon.

BoraKarip,AhmetÇakmakFatihSultanMehmetTrainingandResearchHospital,DepartmentofGeneralSurgery,Istanbul,Turkey

P187 Endoscopicclipapplicationisreliableandsuccessfultreatmentincolonicperforations

OsmanKöneş1,AliKocataş1,CevherAkarsu1,AhmetCemDural1,AbdulcabbarKartal2,KemalTekeşin3,MehmetEminGüneş11UniversityofHealthSciences,FacultyofMedicineBakırkoyDr.SadiKonukTraining&ResearchHospital,İstanbul,Turkey.2OkanUniversityHospital,DepartmentofGeneralSurgery,DivisionofColoproctology,İstanbul,Turkey.3Provincialhealthdirectorate,istanbul,Turkey

P188 Riskfactorsofstomacomplications;Multivariateanalysisof350consecutivepatients.

ShunichiroKato,AkioShiomi,HiroyasuKagawa,YuushiYamakawa,HitoshiHinoShizuokacancercenter,Nagaizumi-tyo,Japan

P189 IndexC-reactiveproteinpredictsincreasedseverityinacutesigmoiddiverticulitis

AristotelisKechagias1,2,AnastasiosSofianidis1,GeorgiosZografos3,EmmanouelLeandros3,NicholasAlexakis3,ChristosDervenis11DepartmentofSurgery,KonstantopouleionHospital,Athens,Greece.2DepartmentofGastrointestinalSurgery,HämeenlinnaCentralHospital,Hämeenlinna,Finland.3FirstDepartmentofPropaedeuticSurgery,NationalandKapodistrianUniversityofAthens,HippocratioHospital,Athens,Greece

P190 Comparisonofdifferentsurgicaltechniquesforclosureofdivertingloopileostomy:Aclinicaltrial

AmirKeshvari,MohammadRezaKeramati,AlirezaKazemeini,MohammadSadeghFazeli,SeyyedMostafaMeshkatiYazdTehranUniversityofMedicalSciences,Tehran,Iran,IslamicRepublicof

P191 Successfuluseofultrasoundpercutaneousablationforextraperitonealdesmoid,in6patients:Asinglecentreexperience.

AzamKhan,JamesHill,BalashanmugamRajashanker,NicholasStylianidesManchesterUniversityNHSFoundationTrust,Manchester,UnitedKingdom

P192 Psoasmuscleindexasaprognosticfactorinpatientswithemergencysurgeryforcolorectalperforation

SeongUKJang,JeongEonKim,YoungHunKim,KyungJongKimDeparmentofSurgery.ChosunUniversityMedicalSchool,Gwangju,Korea,Republicof

P193 Experienceof73patientsofFecalDevertingDevice(FDD)forthesubstitutionofdefunctioningstoma

JaeHwangKim1,2,SohyunKim3,21SchoolofMedicineYeungnamUniversity,Daegu,Korea,Republicof.2YeungnamUniversityHospital,Daegu,Korea,Republicof.3SchoolofMediceneYeungnamUniversity,Daegu,Korea,Republicof

P194 ThemultiplevariationsofinferiormesentericarterybranchesinaRussiancohort

YuriyKitsenko,KirillSeurko,NoraOganyan,SergeyEfetov,InnaTulina,PetrTsarkovClinicofColorectalandMinimallyInvasiveSurgerySechenovFirstMoscowStateMedicalUniversity,Moscow,RussianFederation

P195 Anatomicalvariationsinthebranchingpatternofmiddlerectalartery-radiologicalevaluationby3D-CTangiography

TomomichiKiyomatsu,YoshimasaGohda,KatsuyaDeguchi,KensukeOtani,YuzoNagai,MakotoTokuhara,KazuhikoYamada,NobuyukiTakemura,NorihiroKokudoCenterHospitaloftheNationalCenterforGlobalHealthandMedicine,Tokyo,Japan

P196 Areviewofwearabletechnologyinabdominalsurgicalpatients

EdmundKong1,OlliverWarren1,SarahMills1,ParisTekkis2,3,1,ChristosKontovounisios2,3,11ChelseaWestminsterhospital,London,UnitedKingdom.2DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.3RoyalMarsdenhospital,London,UnitedKingdom

P197 Fasciotens-anewdevicetofacilitateclosureoftheopenabdomen

ChristianKrieglsteinSt.ElisabethHospital,Cologne,Germany

P198 Boostermedicationtoachievecapsuleexcretionincoloncapsuleendoscopy,arandomizedcontrolledtrialonthreeregimens

RasmusKrøijer,GunnarBaatrupDepartmentofSurgery,OdenseUniversityHospital,Odense,Denmark

P199 Negativepredictivevalueoftemperatureandinflammatorymarkersforacuteappendicitis

DulithaKumarasinghe,BrandonHuynh,AndrewOngSydneySouthWestLHD,Sydney,Australia

P200 ERASinhighriskpatients-identificationofriskandpostoperativmonitoring

FridaLedel1,MalinColling2,DanKornfeld1,ErikLarsson1,RichardBernhoff1,LarsGrankvist1,AmelieSondell31CapioSanktGöransSjukhus,DepartmentofColorectalSurgery,Stockholm,Sweden.2CapioSanktGöransSjukhus,DepartmentofAnesthesiology,Stockholm,Sweden.3CapioSanktGöransSjukhuts,DepartmentofColorectalSurgery,Stockholm,Sweden

P201 Aortoiliaccalcificationasapossibleriskfactorforanastomoticleakageafterrectalcancersurgery

SooYoungLee1,Seung-SeopYeom1,ChangHyunKim1,HyeongRokKim1,HanDeokKwak2,JaeKyunJu2,YoungJinKim11ChonnamNationalUniversityHwasunHospitalandMedicalSchool,Hwasun,Korea,Republicof.2ChonnamNationalUniversityHospitalandMedicalSchool,Gwangju,Korea,Republicof

P202 Endo-hookversusendo-shearscauteryduringlaparoscopicsurgeryforrightcoloncancer:acase-controlstudyfortechnicalbenefits

JeehyeLee,MyungJoKim,SungIlKang,MinHyunKim,Heung-KwonOh,Duck-WooKim,Sung-BumKangDepartmentofSurgery,SeoulNationalUniversityBundangHospital,Seongnam,Korea,Republicof

P204 Comparisonofrecoverycoursesbetweenopenandlaparoscopicsurgeryinpatientswithperitonitisduetoperforatedcolonicdiverticulitis

SANG-JEONLEE1,2,SUNGBAKAN2,TAEK-GULEE11DepartmentofSurgery,ChungbukNationalUniversityHospital,Cheongju,Korea,Republicof.2DepartmentofSurgery,CollegeofMedicine,ChungbukNationalUniversity,Cheongju,Korea,Republicof

P205 Surgicalmanagementofsigmoidvolvulus:amulticenterobservationalstudy

KeunchulLee1,Heung-KwonOh1,SungIlKang1,MyungJoKim1,MinHyunKim1,Duck-wooKim1,Sung-BumKang1,Hyung-JinKim2,Hyoung-ChulPark3,RumiShin4,SeungChulHeo4,Seung-BumRyoo5,KyuJooPark51SeoulNationalUniversityBundangHospital,Seongnam,Korea,Republicof.2TheCatholicUniversityofKorea,St.VincentHospital,Suwon,Korea,Republicof.3HallymUniversitySacredHeartHospital,Anyang,Korea,Republicof.4SeoulMetropolitanGovernment-SeoulNationalUniversityBoramaeMedicalCenter,Seoul,Korea,Republicof.5SeoulNationalUniversityHospital,Seoul,Korea,Republicof

P206 Useofimaginginsuspectedappendicitiscasestoreducenegativeappendicectomyrates(NAR)-anaudit

AagatSharmaKhatiwada1,ZhiaLim1,JamesStephenson2,1,AhmedAlNowfal2,MikeNorwood1,21UniversityofLeicester,Leicester,UnitedKingdom.2UniversityHospitalsofLeicesterNHSTrust,Leicester,UnitedKingdom

P207 Title:Realisticmedicineindiverticulardisease:canwerationaliseCTcolonography?

PrachetaMehtaji,CarlyNBisset,EdeleOwens,ClaireMcKenzie,AngusMacdonaldUniversityHospitalMonklands,Glasgow,UnitedKingdom

P208 Antibioticprescribingandantibioticresistancepatternsinacuteappendicitis

AnnaJarchow-MacDonald1,JamieLeask2,EuanMacDonald21NinewellsHospitalandMedicalSchool,Dundee,UnitedKingdom.2NHSForthValley,Larbert,UnitedKingdom

P209 LateralinternalsphincterotomyversusV-Yadvancementflapintreatmentofanalfissureinfemales(Aprospectivestudy)

SabryMahmoud,MarwaSobhi,MohamedAboElkhir,AhmedAbdElMawlaFacultyofMedicine,MansouraUniversity,Mansoura,Egypt

P210 Roboticcolorectalsurgerywithutilisationofanextgenerationsingleportsystem:Acadavericfeasibilitystudy

TonyMak1,JohnMarks2,SimonNg11DivisionofColorectalSurgery,DepartmentofSurgery,TheChineseUniversityofHongKong,HongKong,China.2DivisionofColorectalSurgery,LankenauHospital,Wynnewood,Pennsylvania,USA

P211 INTRACORPOREALANVILINTRODUCTIONDURINGROBOTICRECTALRESECTION“VIJANPOPTECHNIQUE”:TECHNIQUEANDINITIALRESULTS

MarcoVitoMarino1,GalynaShabat21AziendaOspedalieraVillaSofia,Palermo,Italy.2BrighamandWomen’sHospital,Boston,USA

P212 ROBOTIC-ASSISTEDVERSUSLAPAROSCOPICLEFTHEMICOLECTOMY:ACOMPARATIVESTUDY

MarcoVitoMarino1,GalynaShabat21AziendaOspedalieraVillaSofia,Palermo,Italy.2BrighamandWomen'sHospital,Boston,USA

P213 MediumCareobservationaftercolorectalsurgeryinhigh-riskpatients.

CarlaMarres1,TaraMackay1,ChristianneBuskens2,RoelSentjens1,SusanvanDieren2,AnthonyvandeVen1,21Flevoziekenhuis,Almere,Netherlands.2AMC,Amsterdam,Netherlands

P214 Laparoscopiclocalexcision;agoodalternativeforcolonicresectioninendoscopicallyunresectablebenigncolonpolyps?

CarlaMarres1,MariekeSmit1,AnthonyvandeVen1,21Flevoziekenhuis,Almere,Netherlands.2AMC,Amsterdam,Netherlands

P215 ThevalueofrectalcontrastbeforeCT-abdomenfordetectinganastomoticleakageaftercolorectalsurgery.

CarlaMarres1,HesterHaak1,LieveLeijssen1,AnthonyvandeVen1,21Flevoziekenhuis,Almere,Netherlands.2AMC,Amsterdam,Netherlands

P216 Analysisof50fluorescent-guidedcolorectalanastomoses:doesfluorescencehavearealimpactonintraoperativedecisionsandclinicalconsequences?

GonzaloP.Martin-Martin,JoseM.Olea,LauraFernandez,MyriamFernandez,AinaOchogavia,NataliaAlonso,JuanJ.Segura,MargaritaGamundi,FranciscoJ.GonzalezHospitalUniversitarioSonEspases,PalmadeMallorca,Spain

P217 SURGICALTREATMENTOFCOLONOSCOPICPERFORATIONS

BeatrizMartin-Perez,VictorTurrado-Rodriguez,FBorjaDeLacy,AnaOtero-Piñeiro,SilviaValverde-Lahuerta,RaquelBravo-Infante,RaulAlmenara-Santacristina,AntonioMLacyHospitalClinic,Barcelona,Spain

P218 Conservativetreatmentforacuteappendicitis-bewareofappendicularcancers–aDGHexperienceover7yrs

LinuMathew,SameerMittwally,RebeccaWebb,AartiVarma,NicholasTingLincolnCountyHospital,Lincoln,UnitedKingdom

P219 Neutrophil-Monocyteratio(NMR),areliablepredictorfordiagnosingacuteappendicitis.

LinuMathew,NicholasTing,TarunJacob,PiyushVanmali,NikhilKulkarni,SureshPillaiLincolnCountyHospital,Lincoln,UnitedKingdom

P220 USS,abetterradiologicaltestindiagnosisofacuteappendicitisinmales<18yrsofagethanfemalesofsimilarage.

LinuMathew,NicholasTing,SindhooRangarajan,TarunJacob,PiyushVanmali,AartiVarma,SureshPillaiLincolnCountyHospital,Lincoln,UnitedKingdom

P221 Anunusualcaseofintestinalocclusion–PhytobezoarinMeckelDiverticulum-Casepresentation

NadiimMaudarbaccus1,2,VictorLazar1,ManuelaOprea11EmergencyCountyHospital,Oradea,Romania.2OLOLHospital,Drogheda,Ireland

P222 A10yearreviewofemergencygeneralsurgeryatacentrallondonteachinghospital

SimonMcCluney1,VasPanayi1,GemmaGSheehan-Dare1,MinaAl-Janabi1,ParisTekkis2,3,1,ChristosKontovounisios2,3,1,HectorGonzalez1,NebilBehar11ChelseaWestminsterhospital,London,UnitedKingdom.2DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.3RoyalMarsdenhospital,London,UnitedKingdom

P223 Issymptom-basedtailoringofcolonicinvestigationsafe?

EmilyMcFiggans1,YasukoMaeda1,2,3,AshishSinha1,2,3,TusharAgarwal1,2,31DepartmentofSurgery,EalingHospital,London,UnitedKingdom.2DepartmentofSurgery,StMark'sHospital,London,UnitedKingdom.3ImperialCollegeLondon,London,UnitedKingdom

P224 Follow-upEndoscopyafterAcutediverticulitis:Isitnecessary?

JuliaMerchant,GiulioCuffolo,RebeccaGerrity,ConnorSwinford,WaseemHameed,NadeenLowWexhamParkHospital,Slough,UnitedKingdom

P225 Doradiologicallyinsertedintraperitonealdrainsdelayorpreventsurgeryinacutecomplicateddiverticulitis?

JuliaMerchant,RebeccaGerrity,ConnorSwinford,GiulioCuffolo,WaseemHameed,NadeenLowWexhamParkHospital,Slough,UnitedKingdom

P226 Riskofcolorectaladenocarcinomainpatientswithacutediverticulitis:asystematicreviewandmeta-analysisofobservationalstudies

JeremyMeyer,LorenzoOrci,ChristopheCombescure,AlexandreBalaphas,PhilippeMorel,NicolasChristianBuchs,FrédéricRisHôpitauxUniversitairesdeGenève,Genève,Switzerland

P227 RoleofC-Reactiveproteinandprocalcitonineincolorectalsurgery

FernandoMendoza-Moreno1,2,AnaMaríaMinaya-Bravo1,MaríadelRocíoDíez-Gago1,JavierMínguez-García2,DiegoTristánEnjuto-Martínez2,BenjamínTallón-Iglesias2,ManuelSolana-Maoño2,JesúsManuelArgüello-de-Andrés21HospitalUniversitarioPríncipedeAsturias,AlcaládeHenares,Spain.2HospitalUniversitarioSanitasLaMoraleja,Madrid,Spain

P228 Laparoscopicsplenicflexuremobilizationinsigmoidandrectalresection:Asystematicreviewandmeta-analysisofobservationalstudies.Laparoscopicsplenicflexuremobilizationinsigmoidandrectalresection:Asystematicreviewandmeta-analysisofobservationalstudies.

ArturMukhamed-Aliev1,HanjooLee1,AbrahamFingerhunt2,SelmanUranues2,LuigiBoni3,MahirGachabayov1,RobertoBergamaschi11WestchesterMedicalCenter,Valhalla,NY,USA.2UniversityofGraz,Graz,Austria.3UniversityofMilan,Milan,Italy

P229 Theabdominalwallherniainlaparoscopicassistedsurgeryforcolorectalcancer,midlineincisionversustransverseincision.

KojiMunakata,RyoIkeshima,HirofumiOta,DaikiHokkoku,RyoheiWada,NorikoWada,DaisukeTakiuchi,TakashiAzama,EijiOkura,OsakuniMorimoto,YusukeAkamaru,MasashiKitada,KunitakaShibataIkedacityhospital,Ikeda,Japan

P230 Appropriateantibiotictreatmentinacutediverticulitis

Dorin-StelianNita1,HarjeetNarula21ChesterfieldRoyalHospital,c,UnitedKingdom.2ChesterfieldRoyalHospital,Chesterfield,UnitedKingdom

P231 Theeffectofroaddistancetohospitalonstomareversalrate

SimonNäverlo,UlfGunnarsson,KarinStrigårdDepartmentofSurgicalandPerioperativeSciences,Umeå,Sweden

P232 Theeffectofroaddistancetohospitalonqualityoflifeinstomapatientsafterrectalcancersurgery

SimonNäverlo,UlfGunnarsson,KarinStrigårdDepartmentofSurgicalandPerioperativeSciences,Umeå,Sweden

P233 AvailabilityofResourcesonSmartphonesandSocialmediaforPatientswithAnalCancer

UzmaNawaz,PeterCoyne,RichardBrady,BenGriffithsNewcastleUniversityandNewcastleUponTyneUniversityHospitalsNHSFoundationTrust,NewcastleCentreforBowelDisease,NewcastleUponTyne,UnitedKingdom

P234 AssessingtheoutcomesofaVirtualClinicPathwayatasinglecentreparticipatingintheAccelerate,Coordinate,Evaluate(ACE)Programme

ChoEeNg,SueHemer,ClaireKilbride,JamesAnderson,Vasile-LiviuTituWirralUniversityteachinghospitalNHSfoundationtrust,Liverpool,UnitedKingdom

P235 Managementofcolorectalanastomoticleaksathigh-volumeuniversityhospital

GregorNorcic,BostjanPlesnik,JanGrosek,AlesTomazicUMCLjubljana,Ljubljana,Slovenia

P236 Parastomalherniarepair;rarelyperformedandseldomreported:resultsfromanationalsurvey.l

christofferodensten,KarinStrigård,MichaelDahlberg,UlfGunnarsson,PiaNäsvallinstitutionofsurgeryandperioperativesciences,UmeåUniversity,Umeå,Sweden

P237 TheeffectofPreventiveSurgicalSiteInfection(SSI)BundleOnInfectionRatesFollowingColonandRectalResections

ErsinOzturk,ErsoyTaşpınar,BarışGülcüMedicanaHospital,Bursa,Turkey

P238 PostcolonoscopycolorectalcancerratesinDenmark:colonoscopyqualityinaninternationalperspective

LassePedersen1,IngeBernstein1,KarenLindorff-Larsen2,CharlotteGreen3,ChristianTorp-Pedersen41DepartmentofSurgery,AalborgUniversityHospital,Aalborg,Denmark.2NordSim,CenterforSkillsTrainingandSimulation,AalborgUniversityHospital,Aalborg,Denmark.3EmergencyDepartment,AarhusUniversityHospital,Aarhus,Denmark.4DepartmentofHealthScienceandTechnology,AalborgUniversityHospital,Aalborg,Denmark

P239 ThecurrentstateofcolorectalsurgicaltraininginItaly:asurveyoftheyounggroupoftheItalianSocietyofColorectalSurgery(Y-SICCR)

GianlucaPellino1,2,ElisabettaMoggia3,2,EugenioNovelli4,DonatoFAltomare5,KlausMatzel6,RJohnNicholls7,MarioTrompetto8,GaetanoGallo9,8,2,YSICCRCommittee21DepartmentofMedical,Surgical,Neurological,MetabolicandAgeingSciences,UniversitàdellaCampania“LuigiVanvitelli”,Naples,UnitedKingdom.2Y-SICCR,Turin,Italy.3DepartmentofGeneralSurgery,ASLAlessandria,SSAntonio&MargheritaCivilHospital,,Tortona,Italy.4DepartmentofBiostatisticsandClinicalResearch,S.GaudenzioClinic,Novara,Italy.5DepartmentofEmergencyandOrganTransplantationandInter-departmentResearchCenterforPelvicFloorDiseases(CIRPAP),University'AldoMoro'ofBari,Bari,Italy.6DepartmentofGeneralandVisceralSurgery,UniversityHospitalErlangen,Friedrich-AlexanderUniversityErlangen-Nürnberg,,Erlangen,Germany.7DepartmentofSurgeryandCancer,ImperialCollege,London,UnitedKingdom.8DepartmentofColorectalSurgery,S.RitaClinic,Vercelli,Italy.9DepartmentofMedicalandSurgicalSciences,UniversityofCatanzaro,Catanzaro,Italy

P240 RETROSPECTIVEMULTICENTERSTUDYOFPOST-OPERATIVESTENOSISAFTERSTAPLEDCOLORECTALANASTOMOSIS

GiuseppePortale1,AlbertoSartori2,MaurizioDeLuca2,ValentinoFiscon1,CansasStudyGroup31ULSS6Euganea,Cittadella,Italy.2ULSS2,Montebelluna,Italy.3Multiple,Multiple,Italy

P241 ScientificresearchduringmedicaltraininginPortugal:atraineeprospectivesurvey

PTSurgPortugueseSurgicalResearchCollaborativePortugal,Portugal,Portugal

P242 Riskfactorsforcolorectalanastomoticleak:5yearsinglecenterexperience

NeringaPranskeviciute1,2,EligijusPoskus1,2,GabijaMakunaite1,DonatasDanys1,2,AndrejKolosov1,2,VirgilijusBeisa1,2,ValdemarasJotautas1,2,SauliusMikalauskas1,2,KestutisStrupas1,2,AntanasMainelis3,TomasPoskus1,21FacultyofMedicine,VilniusUniversity,Vilnius,Lithuania.2CentreofAbdominalSurgery,VilniusUniversityHospitalSantarosClinics,Santariskiu2,LT-08661,Vilnius,Lithuania.3FacultyofMathematicsandInformatics,VilniusUniversity,Vilnius,Lithuania

P243 Isroboticsmorecost-effectivethanstandardlaparoscopyincolorectalpatients?AsystematicreviewIsroboticsmorecost-effectivethanstandardlaparoscopyincolorectalpatients?Asystematicreview

HannahReilly1,NathanGothard1,RichardWharton2,GabbyThorpe3,JamesHernon21NorwichMedicalSchool,Norwich,UnitedKingdom.2NorfolkandNorwichUniversityHospitalNHSFoundationTrust,Norwich,UnitedKingdom.3UniversityofEastAnglia,Norwich,UnitedKingdom

P244 Identifyingpatientswithrightiliacfossapainatverylowriskofappendicitis:Prospective,multicentrevalidationandcalibrationofriskscores

.RIFTStudyGroupWestMidlandsResearchCollaborative,Birmingham,UnitedKingdom

P245 Nationalauditofthemanagementofrightiliacfossapaininchildren

.RIFTStudyGroupWestMidlandsResearchCollaborative,Birmingham,UnitedKingdom

P246 SingleIncisionLaparoscopicSurgeryforColorectalEmergencies

EllenRoss,DeenaHarji,PremThambi,TalvinderGillUniversityHospitalofNorthTees,Stockton-on-Tees,UnitedKingdom

P247 Transanaltotalmesorectalexcision:howmanycasesarenecessarytoovercomelearningcurve?

StanislavChernyshov,EvgenyRybakov,LudmilaKazieva,YuriShelyginStateScientificCentreofcoloproctology,Moscow,RussianFederation

P248 Antibioticprophylaxisinrectalcancersurgery:oralwithintravenousversusintravenousantibiotics.Preliminaryresultsofrandomizedtrial.

EvgenyRybakov1,MaratNagudov1,StanislavChernyshov1,MikhailAlekseev1,2,VladimirKashnikov11StateScientificCentreofcoloproctology,Moscow,RussianFederation.2RussianAcademyofpostgraduatemedicaleducation,Moscow,RussianFederation

P249 3Dreconstructionstoguidedecision-makinginadvancedcolorectalsurgery-posteriorextentorations

KapilSahnan,AmarasingamSasikumar,AlisonCorr,SamuelAdegbola,PhilTozer,JohnJenkins,DavidBurling,AnthonyAntoniou,PhillipLungStMark'sHospital,London,UnitedKingdom

P250 Resultsincolonsurgeryaftertheestablishmentofamultimodalrehabilitationprogram

AnaSotoSánchez,NelidaDíazJiménez,MoisésHernándezBarroso,GuillermoHernándezHernández,LuisaGambraMichel,JoseGregorioDíazMejías,AliciaGoyaPacheco,EduardoPérezSánchez,IreneFerrerVilela,ManuelBarreraGómezHospitalNuestraSeñoradeCandelaria,Tenerife,Spain

P251 Riskfactorsofanastomoticleakandmorbidityandmortalityafterileocolicanastomosis

LuisSánchez-Guillén,MatteoFrasson,ÁlvaroGarcía-Granero,GianLuccaPellino,BlasFlor-Lorente,EduardoÁlvarez-Sarrado,EduardoGarcía-GraneroUniversityHospitalLaFe,Valencia,Spain

P252 TheUseofBotulinumToxinAcombinedwithComponentSeparationinMassiveAbdominalWallReconstruction(AWR)withEnterocutaneousFistulas(ECF)

KathrynSchlosser,JavierOtero,MichaelArnold,PaulColavita,ToddHenifordCarolinasMedicalCenter,Charlotte,USA

P253 Thelackofconsensusonemergencyrepairsofparastomalhernias

ParisahSeyed-Safi1,AlexHotouras2,ChetanBhan11WhittingtonHospital,London,UnitedKingdom.2WhippsCrossHospital,London,UnitedKingdom

P254 Asystematicreviewofendoluminalvacuum-assistedtherapyasasalvagetreatmentforrectalanastomoticleakage

MostafaShalaby1,2,SamehEmile1,HossamElfeki1,3,AhmadSakr1,StevenWexner4,PierpaoloSileri21MansouraUniversity,Mansoura,Egypt.2RomeTorVeragataUniversity,Rome,Italy.3AarhusUniversity,Aarhus,Denmark.4ClevelandClinicFlorida,Weston,USA

P255 Transanaltubedrainageasaconservativetreatmentforanastomoticleakagefollowingrectalresection

MostafaShalaby1,2,WaleedThabet1,OresteBuonomo2,NicolaDiLorenzo2,MosaadMorshed1,GiuseppePetrella2,MohamedFarid1,PierpaoloSileri21MansouraUniversity,Mansoura,Egypt.2RomeTorVergataUniversity,Rome,Italy

P256 Theroleoftransanaltubedrainageasameanofpreventionofanastomoticleakage

MostafaShalaby1,2,IlariaCapuano2,FedericaSaraceno2,SaraMastrovito2,GiuseppePetrella2,PierpaoloSileri21MansouraUniversity,Mansoura,Egypt.2RomeTorVergataUniversity,Rome,Italy

P257 LAPAROSCOPICPERITONEALLAVAGEDRAINAGE(LLD)INTREATMENTOFPURULENTANDFECALPERITONITISASASCOMPLICATIONSOFTHECOLONICDIVERTICULARDISEASE

VitaliiShapovalov1,RomanEnin21Odessanationalmedicaluniversity,Odessa,Ukraine.2Military-medicalclinicalcenteroftheSouthregion,Odessa,Ukraine

P258 EffectivenessofpreoperativeCT-modelingofvascularanatomyforextendedlymphnodedissection

LyudmilaSidorova,YuriyKitsenko,NoraOganyan,SergeyEfetov,InnaTulina,PetrTsarkovClinicofColorectalandMinimallyInvasiveSurgerySechenovFirstMoscowStateMedicalUniversity,Moscow,RussianFederation

P259 Macroscopicaccuracyinidentifyinghyperplasticpolyps

NalaSivarajasingham,AssadAghahoseini,StevanStojkovic,DibBandyopadhyay,SrinivasChintapatlaYorkteachinghospitalsFoundationTrust,York,UnitedKingdom

P260 Internationalvariationinuseofimagingforpatientspresentingwithrightiliacfossapain

AntónioSampaioSoaresWestMidlandsResearchCollaborative,Birmingham,UnitedKingdom

P261 Non-responseonconservativetreatmentofacutesigmoiddiverticulitis:assessmentofclinicalandradiologicalpredictors

MaximilianSohn,AymanAgha,DaphneRoussos,FabianBloss,IgorsIesalnieksKlinikfürAllgemein-,Viszeral-,Endokrine-undMinmalinvasiveChirurgie,KlinikumBogenhausen,StädtischesKlinikumMünchenGmbH,Munich,Germany

P262 Influenceofsigmoidcolectomyonqualityoflifeinpatientswithuncomplicatedandcomplicateddiverticulitisofthecolon

MaimilianSohn,AymanAgha,DaphneRoussos,FabianBloss,IgorsIesalnieksKlinikfürAllgemein-,Viszeral-,Endokrine-undMinimalinvasiveChirurgie,KlinikumBogenhausen,StädtischesKlinikumMünchenGmbH,Munich,Germany

P263 Theimpactofintravenouscontrastonpost-operativeacutekidneyinjuryfollowingmajorgastrointestinalandliversurgery

.STARSurgCollaborativeSTARSurgCollaborative,Birmingham,UnitedKingdom

P264 TheeffectsofperioperativeAngiotensinConvertingEnzymeInhibitorsandAngiotensinReceptorBlockersonacutekidneyinjuryinmajorelectivenon-cardiacsurgery.Amulticentre,prospectivecohortstudy

.STARSurgCollaborativeSTARSurgCollaborative,Birmingham,UnitedKingdom

P265 Impactofpost-operativeacutekidneyinjuryonlong-termsurvivalfollowingmajorabdominalsurgery

.STARSurgCollaborativeSTARSurgCollaborative,Birmingham,UnitedKingdom

P266 Theimpactofthenon-technicalskillstrainingandsurgicalsimulationinaregionaltrainingprogram–isitworthytodevelopthestudyofthehumanfactorsinsurgeryinaDeanery?

SamuelStefan1,2,3,MickHarper2,JimKhan1,2,SimonDennis31PortsmouthHospitalsNHSTrust,Portsmouth,UnitedKingdom.2UniversityofPortsmouth,Portsmouth,UnitedKingdom.3HEEWessexDeanery,Winchester,UnitedKingdom

P267 ImplementationoftheEnhancedrecoveryprogramforcolorectalsurgeryinclinicalpractice.AsurveyofsurgeonsofRussianfederation.

SergeiAchkasov,OlegSushkov,IlonaLukashevych,EvgeniiSuroveginStateScientificCentreofColoproctology,Moscow,RussianFederation

P268 Effectofhumanamnioticmembraneonanastomosisleakageindogmodel

MehdiTahamtan,SeyedVahidHosseini,HajarKhazraei,MajidForozesh,AlimohammadBananzadeh,MaralMokhtari,ShahlaFereidooniColorectalResearchCenter,Shiraz,Iran,IslamicRepublicof

P269 Clinicalandfunctionaloutcomesfollowingstapledtransanalrectalresectionwithhighvolumestapleddevices

PasqualeTalento,GiovanniFerreri,SimonaMaggiore,EugenioCudazzo,RosaVernaglia,IlariaVecchioni,ValerioAnnessiPelvicFloorCenter,SurgicalDepartment,FranchiniHospital,AUSLReggioEmilia,ReggioEmilia,,Italy

P270 CTscaninsuspectedanastomoticleakageaftercolorectalsurgery:mortalityincreasingafterfalse-negativeimaging.

NicolòTamini1,DilettaCassini2,MarcoAngrisani1,AlessandroGiani1,SimoneFamularo1,MauroMontuori1,GianandreaBaldazzi2,LucaGianotti1,31AsstMonza-OspedaleSanGerardo,Monza,Italy.2PoliclinicoAbanoTerme,AbanoTerme,Italy.3UniversitàdeglistudiMilanoBicocca,Milano,Italy

P271 Ultrasound(USS)andNeutrophil-LymphocyteRatio(NLR)inrulingoutacuteappendicitisinpatients16-55yrs

NicholasTing1,LinuMathew2,TarunJacob2,PiyushVamali2,AartiVarma2,SureshPillai21DerbyshireHealthcareNHSFoundationTrust,Derby,UnitedKingdom.2UnitedLincolnshireHospitalsNHSTrust,Lincoln,UnitedKingdom

P272 CTscansandNeutrophil-LymphocyteRatio(NLR)indiagnosingacuteappendicitisinpatientsabove50yearsofage

NicholasTing1,LinuMathew2,PiyushVanmali2,TarunJacob2,AartiVarma2,SureshPillai21DerbyshireHealthcareFoundationNHSTrust,Derby,UnitedKingdom.2UnitedLincolnshireHospitalsNHSTrust,Lincoln,UnitedKingdom

P273 Right-sidedcolonicdiverticulitis–10years’experiencefromatertiarycentre

JulianTsang,JeremyYip,ChiChungFoo,HokKwokChoi,RocksonWei,KakinNg,OswensLo,WaiLunLawDivisionofColorectalSurgery,DepartmentofSurgery,QueenMaryHospital,UniversityofHongKong,HongKong,SAR,HongKong

P274 EarlyexperiencewithuseofDavinciroboticplatformtoperformTotalMesorectalExcision(TME)surgerywithouttheneedforadivertingstomainrectalresections

AhmedWaqas,FilipposSagias,JimKhanQueenAlexandraHospital,PortsmouthHospitalsNHSTrust,Portsmouth,UnitedKingdom

P275 Retrorectaltumors-20yearsexperience

NikolayYaramov1,RachoRibarov2,DeyanTodorov1,AtanasBatashki3,VentsislavaYaramova4,DgevdetChakarov3,IliaBatashki11MedicalInstitute–MinistryofInterior,Sofia,Bulgaria.2MedicalUniversity–FacultyofPublicHealth,Sofia,Bulgaria.3MedicalUniversityPlovdiv,Plovdiv,Bulgaria.4NBationalHeartHospital,Sofia,Bulgaria

P276 Shouldpatientsaged50oroverwhopresentwithappendicitisreceivewholebowelimagingtodetectunderlyingright-sidedpolypsormalignancy?

TariqYasin,RhiannonHarries,FrancisdeCastro,SimonPhilipsUniversityHospitalofWales,Cardiff,UnitedKingdom

P277 effectofmechanicalbowelpreparationforcomplicationsafterrighthemicolectomyandileo-colicanastomosis

Seung-SeopYeom,SooYoungLee,ChangHyunKim,HyeongRokKim,YoungJinKimChonnamNationalUniversityHwasunHospital,Hwasun,Korea,Republicof

P278 Theroleofintraoperativecolonoscopyevaluatingcolonicanastomosisafteranteriororlowanteriorresection

RiNaYoo,HyungJinKim,Hyeon-minCho,SeungrimHanSt.VincentHospital,TheCatholicUniversityofKorea,Suwon,Korea,Republicof

P279 ColorectalsurgeryintheNHS:Arewegettingbusier?

EfthymiosYpsilantisKing'sCollegeHospital,London,UnitedKingdom

P280 Istheghostileostomy(GI)ausefulprocedureincolorectalsurgery?

SerkanZenger1,BülentGürbüz1,EmreBalık2,TunçYaltı1,2,DursunBuğra1,21VKFAmericanHospital,DepartmentofGeneralSurgery,Istanbul,Turkey.2KocUniversitySchoolofMedicine,DepartmentofGeneralSurgery,Istanbul,Turkey

P281 Aliteraturereviewoftheuseofsocialmediainmedicaleducation

BenjaminZucker1,ChristosKontovounisios2,1,31ChelseaWestminsterhospital,London,UnitedKingdom.2DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.3RoyalMarsdenhospital,London,UnitedKingdom

P282 Suturechoicetoreduceoccurrenceofsurgicalsiteinfection(SSI),hernia,wounddehiscence,andsinus/fistula.Anetworkmeta-analysis

BenjaminZucker1,ConstantinosSimillis2,ParisTekkis1,3,2,ChristosKontovounisios1,2,31DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.2ChelseaWestminsterhospital,London,UnitedKingdom.3RoyalMarsdenhospital,London,UnitedKingdom

P283 Isrealitylimitingpatientunderstanding?Adiscussionoftheimplicationsofaugmentedandvirtualrealitytechnologytopatientunderstanding

BenjaminZucker1,ParisTekkis2,3,1,ChristosKontovounisios2,3,11ChelseaWestminsterhospital,London,UnitedKingdom.2DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.3RoyalMarsdenhospital,London,UnitedKingdom

P284 Outcomeofdelayedcoloanalanastomosisindifficultlowrectalcancer

GeorgeOctavianPopescu1,2,GiuseppePortale1,3,VincentAssenat1,Marc-OlivierFrancois1,QuentinDenost1,EricRullier11DepartmentofColorectalSurgery,MagellanCentre,Haut-LévèqueHospital,UniversityofBordeaux,Pessac,France.2DepartmentofGeneralandVisceralSurgery,KlinikumAschaffenburg-Alzenau,UniversityofWurzburg,Aschaffenburg,Germany.3DepartmentofGeneralSurgeryAziendaULSS6,UniversityofPadova,Cittadella,Italy

P285 Evaluationoftherelationshipbetweenappendectomyandcolorectalcancer

SzabolcsAbraham1,TiborNemeth1,RiaBenkő2,MariaMatuz2,DanielVaczi1,GyorgyLazar11DepartmentofSurgery,UniversityofSzeged,Szeged,Hungary.2DepartmentofClinicalPharmacy,UniversityofSzeged,Szeged,Hungary

P286 Impactoftumorlocalization,microsatelliteinstabilityandmismatchrepairdeficiencyontheprognosisofcolorectalcancer

TuranAcar1,NihanAcar1,ErdinçKamer1,MustafaAgahTekindal2,FatmaTatar1,ErcümentTarcan1,MehmetHaciyanli1,OsmanNuriDilek11İzmirKatipÇelebiUniversityAtatürkTrainingandResearchHospital,İzmir,Turkey.2SelçukUniversity,Konya,Turkey

P287 Factorsaffectingthelymphnodepositivityincolorectalcancers

NihanAcar,TuranAcar,FeyyazGüngör,FevziCengiz,ErdinçKamer,HalisBağ,KemalAtahan,MehmetHaciyanliİzmirKatipÇelebiUniversityAtatürkTrainingandResearchHospital,İzmir,Turkey

P288 Prognosticvalueoftumorlocalizationincoloncancer

NihanAcar,TuranAcar,FevziCengiz,ErdinçKamer,FeyyazGüngör,HalisBağ,EmineÖzlemGür,ErcümentTarcan,OsmanNuriDilek,MehmetHaciyanliİzmirKatipÇelebiUniversityAtatürkTrainingandResearchHospital,İzmir,Turkey

P289 Acomparisonofclinicopathologicfeaturesofpatientswithcolorectalcancerafteremergencyandelectivesurgery

NihanAcar,MustafaPeşkersoy,TuranAcar,FevziCengiz,KemalAtahan,HaldunKar,MehmetHaciyanliİzmirKatipÇelebiUniversityAtatürkTrainingandResearchHospital,İzmir,Turkey

P290 Investigationofhereditarycolorectalcancer

Y.A.Shelygin,S.I.Achkasov,V.P.Shubin,O.I.Sushkov,D.A.Semenov,S.A.Frolov,A.S.TsukanovStateScientificCentreofColoproctology,Moscow,RussianFederation

P291 ValidationofMRIscoringsystemtopredictpostoperativerecurrenceratesoflowrectalcancer

YokoAdachi1,KojiOkabayashi2,MasashiTsuruta1,TakashiIshida1,TomofumiAndo1,NozomiIwama1,NaoyukiToyota1,AkiyoshiIkebata1,SatoruMorita1,KenYamataka1,AkitsuguMakino1,ShinseiMatsuoka1,YukoKitagawa11DepartmentofSurgery,KeioUniversitySchoolofMedicine,Tokyo,Japan.2DepartmentofSurgery,KeioUniversitySchoolofMedicine,Tokyo,Jersey

P292 Theabdominoperinealresectioninopenandlaparoscopicapproaches

RustemAiupov1,2,DmitriyFeoktistov1,2,NikitaTarasov1,MaratGaripov1,NailSuleymanov1,RustemAgliullin1,FelixZainullin21RepublicanOncologycalClinicalDispensary,Ufa,RussianFederation.2BashkirsStateMedicalUniversity,Ufa,RussianFederation

P293 Prolongedintervalbetweenneoadjuvanttreatmentandsurgeryhasnoimpactonshort-termoutcomesandcompletepathologicresponseinpatientswithlocallyadvancedrectalcancer

AtaCemAkbaba1,FuatBarışBengür1,VolkanÖzben1,ErenEsen1,SerkanZenger2,BilgehanŞahin1,BülentGürbüz2,OnurBayram3,ErmanAytaç1,BilgiBaca1,EmreBalık3,SibelErdamarÇetin1,BanuAtalar1,DuyguSezen3,İsmailHamzaoğlu1,TayfunKarahasanoğlu1,DursunBuğra31AcıbademUniverstiySchoolofMedicine,İstanbul,Turkey.2AmericanHospital,İstanbul,Turkey.3KoçUniverstiySchoolofMedicine,İstanbul,Turkey

P294 DiagnosticAccuracyofMRIinassessingTumourRegressionandIdentifyingCompleteResponseinPatientswithLocallyAdvancedRectalCancerAfterNeoadjuvantTreatment

MedhatAker1,TanArulampalam2,DarrenBoone21NNUH,Norwich,UnitedKingdom.2ColchesterGeneralHospital,Colchester,UnitedKingdom

P295 ComparisonofsystemicinflammatorybiomarkersasprognosticfactorsinstageIIandIIIcoloncancer

TakashiAkiyoshi,ShinsukeSuzuki,ToshiyaNagasaki,TsuyoshiKonishi,YoshiyaFujimoto,YosukeFukunaga,MasashiUenoCancerInstituteHospital,Tokyo,Japan

P296 Surgicaltreatmentofleftcolicangleneoplasm:amulticentricstudyonshort-termoutcomes.

GianAndreaBinda1,GiulianoMariaAlberton1,PaoloSecondo2,SebastianoBiondo3,JaimeLòpez-Borao3,ClaudioFucini4,RosinaGiudicissi4,FrancescoBianco5,ArmandoFalato5,MarcoBruzzone6,AntonioAmato21GallieraHospital,Genova,Italy.2OspedalediSanremo,Sanremo,Italy.3HospitalUniversitarideBellvitge,Barcelona,Spain.4AziendaOspedaliero-UniversitariadiCareggi,Firenze,Italy.5IstitutoNazionaleTumoriFondazioneG.Pascale,Napoli,Italy.6OspedalePoliclinicoS.Martino,Genova,Italy

P297 Abdominoprinealresectioninlowrectalcancerwithorwithoutappendicostomy:comparisonofqualityoflife

MinaAlvandipour,HamedKhodabakhshmazandaranuniversityofmedicalsciences,sari,Iran,IslamicRepublicof

P298 Colonicdoughnutmorphologycanpredicttheriskofanastomosisleakagefollowingdoublestapledcolorectalsurgeryincolorectalcancer

minaalvandipour1,saeedyousefi1,elhamkamalihakim21mazandaranuniversityofmedicalscience,sari,Iran,IslamicRepublicof.2mazandaranuniversityofmedicalscience,sari,Iran,IslamicRepublicof

P299 Systematicimmunohistochemistryformicrostatelliteinstabilityincolorectalcancerspecimens.Acomprehensiveapproachforpersonalizedtreatment?

PeterC.Ambe1,2,3,HubertZirngibl1,GabrielaMöslein41DepartmentofSurgery,HeliosUniversityHospitalWuppertal,Wuppertal,Germany.2CenterforHereditaryGastrointestinalTumor,HeliosUniversityHospitalWuppertal,Witten/HerdeckeUniversity,Wuppertal,Germany.3DepartmentofVisceral,MinimallyInvasiveandOncologicSurgery,MarienHospitalDüsseldorf,Düsseldorf,Germany.4CenterfoHereditaryGastrointestinalTumor,HeliosUniversityHospital,Wuppert,Wuppertal,Germany

P300 InitialexperiencewithtaTMEinpatientsundergoinglaparoscopicrestorativeproctocoloctomyforfamilialadenomatouspolyposis.

PeterC.Ame1,2,GabrielaMöslein11CenterforHereditaryGastrointestinalTumors,HeliosUniversityHospitalWuppertal,Witten/HerdeckeUniversity,Wuppertal,Germany.2DepartmentofVisceral,MinimallyInvasiveandOncologicSurgery,MarienHospitalDüsseldorf,Düsseldorf,Germany

P301 Long-termoutcomesfollowingstentplacementasbridgetosurgerycomparedtoemergencyresectioninpatientswithacuteleft-sidedcolonicobstruction:apropensityscorematchedanalysisfromanationalcross-sectionalcohortstudy.

FemkeAmelung1,EstherConsten1,EmovanHalsema2,JeaninvanHooft2,PeterSiersema3,WillemBemelman2,PieterTanis21MeanderMedicalCenter,Amersfoort,Netherlands.2AcademicMedicalCenterAmsterdam,Amsterdam,Netherlands.3RadboudMedicalCenter,Nijmegen,Netherlands

P302 Differentialimmuneresponseandpredictabilityoflengthofstayandmorbidityinlaparoscopicandroboticcolorectalsurgery

MichaelApostolides,FilipposSagias,KarenFlashman,JimKhanQueenAlexandraHospital,Portsmouth,UnitedKingdom

P303 Influenceofneoadjuvantradiationonshort-termsurgicaloutcomesinrectalcancer:asystematicreview

MohammedAradaib1,2,SofoklisPanteleimonitis1,MickHarper1,AmjadParvaiz1,3,41UniversityofPortsmouth,Portsmouth,UnitedKingdom.2BeaconHospital,Dublin,Ireland.3PooleHospitalNHS,Poole,UnitedKingdom.4ChampalimaudFoundation,Lisbon,Portugal

P304 ThevarietyofScandinavianwatchfulwaitingfollow-upprogramsinpatientswithamalignantcolorectalpolyp.Aweb-basedquestionnairesurvey.

ZainElabedinAsheer1,ThueBisgaard1,OddMjåland2,EvaAngenete3,OrhanBulut1,KatarinaLevicSouzani11HvidovreUniversityHospital,Copenhagen,Denmark.2SorlandetHospitalTrust,Kristiansand,Norway.3SahlgrenskaUniversityHospital,Gothenburg,Sweden

P305 Therelationshipbetweenproportionofstromainpre-treatmentbiopsy,responsetochemoradiotherapyandsurvivalinpatientswithrectalcancer

StijnWenmaekers,SadeAssmann,HeikeGrabsch,JarnoMelenhorstMUMC,Maastricht,Netherlands

P307 Concordanceofpre-andpostoperativetumorstagingofcoloncancer

NajiaAzhar1,KevinKorsbakke2,NiklasKarlsson1,SophiaZachrisson3,PamelaBuchwald11DepartmentofSurgery,Malmoe,Sweden.2DepartementofSurgery,Malmoe,Sweden.3DepartmentofTranslationMedicine,Malmöe,Sweden

P308 Predictingtheresponsetopreoperativeradiationtherapybynext-generationsequencingofthegeneexpressionprofilesinrectalcancer

SungUkBae,Hyun-GyoLee,WoonKyungJeong,SeongKyuBaekKeimyungUniversityDongsanMedicalCenter,Daegu,Korea,Republicof

P309 Theobesityparadoxinbeyondtotalmesorectalexcisionsurgeryforlocallyadvancedandrecurrentrectalcancer

DanielBaird1,2,ConstantinosSimillis3,GianlucaPellino3,ChristosKontovounisios2,3,1,ShahnawazRasheed2,1,ParisTekkis2,1,31RoyalMarsdenhospital,London,UnitedKingdom.2DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.3ChelseaWestminsterhospital,London,UnitedKingdom

P310 Evolutionofperinealreconstructioninsalvageabdominoperinealexcision(APE):adecadeofoutcomesfromasinglecentre

RichardBamford,JamesWFKynaston,ThomasMaccabe,RobertJLongman,DavidMessenger,MichaelGThomasBristolRoyalInfirmary,Bristol,UnitedKingdom

P311 Theuseofcolonicstentsasatherapeuticoptioninobstructivecolonneoplasia.

OlgaAnabitarteBautista,LuciadelCarmenCalvodelVal,MariaAisDávila,GonzaloSanzOrtega,ClaudiaJimenaGonzalez,DanielRivera,InmaculadaDominguez,MauricioGarciaAlonso,AntonioJoseTorresHospitalclinicoSanCarlos,Madrid,Spain

P312 Adherencetosurveillanceguidelinesforhistologicallydiagnosedsessileserratedlesions

SophiaBeeby,ThomasDudding,AdrianBatemanUniversityHospitalSouthampton,Southampton,UnitedKingdom

P313 Doescompletemesocolicexcisionforsigmoidcancerincreasetheriskofboweldysfunction?

ClausAndersBertelsen1,HossamElfeki2,AndersUlrichNeuenschwander1,SørenLaurberg2,BentKristensen3,KatrineJEmmertsen41DepartmentofSurgery,NorthZealandHospitalHillerød,Hillerød,Denmark.2DepartmentofSurgery,AarhusUniversityHospital,Aarhus,Denmark.3DepartmentofClinicalPhysiology,HerlevUniversityHospital,Herlev,Denmark.4DepartmentofSurgery,RegionshospitaletRanders,Randers,Denmark

P314 MUC-16andKLK13areindependentprognosticbiomarkersincoloncancer

KajsaBjörkman1,2,HarriMustonen1,2,TuomasKaprio1,2,CajHaglund1,2,CamillaBöckelman1,21UniversityofHelsinki,Helsinki,Finland.2HelsinkiUniversityHospital,Helsinki,Finland

P315 Aretrospectivemulticentrecohortstudycomparingperinealmorbidityfollowingabdominoperinealresectionwithandwithoutomentoplastyinrectalcancerpatients

RobinBlok1,JoskedeJonge2,MarloudeKoning1,AnthonyvandeVen3,JarmilavanderBilt3,NanettevanGeloven2,WillemBemelman1,PieterTanis11AcademicMedicalCentre,Amsterdam,Netherlands.2TergooiHospital,Hilversum,Netherlands.3FlevoHospital,Almere,Netherlands

P316 TheadditionofMUC-16andKLK13serumbiomarkersimprovesprognosticationofcoloncancerpatients

KajsaBjörkman1,2,HarriMustonen1,2,TuomasKaprio1,2,CajHaglund1,2,CamillaBöckelman1,21UniversityofHelsinki,Helsinki,Finland.2HelsinkiUniversityHospital,Helsinki,Finland

P317 Patternsofcomplicationsafterurinarytractreconstructioninmultivisceralsurgeryforcolorectalandanalcancer

BjörnBolmstrand,PerJNilsson,TorbjörnHolm,ChristianBuchli,GabriellaPalmerDepartmentofMolecularMedicineandSurgery,KarolinskaInstitutetandCenterofDigestiveDiseases,P9:03,KarolinskaUniversityHospital,Stockholm,Sweden

P318 Surgicalresectionfortreatmentofcolorectalpolyps:asinglecentreretrospectivecohortstudy

DianneBosch1,WouterHdeVostotNederveenCappel1,NinaACVermeer2,KoenCMJPeeters2,HenderikLvanWestreenen11IsalaZwolle,Zwolle,Netherlands.2LUMC,Leiden,Netherlands

P319 1yearsurvivalofcolorectalcancerpatientsinEnglandandWales

JemmaBoyle1,AngelaKuryba1,JanvanderMeulen1,2,KateWalker1,2,JamesHill3,MichaelBraun41ClinicalEffectivenessUnit,RoyalCollegeofSurgeons(England),London,UnitedKingdom.2LondonSchoolofHygieneandTropicalMedicine,London,UnitedKingdom.3CentralManchesterUniversityHospitals,Manchester,UnitedKingdom.4TheChristieHospital,Manchester,UnitedKingdom

P320 Establishingthecurrentburdenofcolorectalcancerpatientswhoaresurvivinglessthan12monthsinEnglandandWales

JemmaBoyle1,AngelaKuryba1,JanvanderMeulen1,2,KateWalker1,2,JamesHill3,MichaelBraun41ClinicalEffectivenessUnit,RoyalCollegeofSurgeons(England),London,UnitedKingdom.2LondonSchoolofHygieneandTropicalMedicine,London,UnitedKingdom.3CentralManchesterUniversityHospitals,Manchester,UnitedKingdom.4TheChristieHospital,Manchester,UnitedKingdom

P321 PlaceofdeathforcolorectalcancerpatientsinEnglandandWales

JemmaBoyle1,AngelaKuryba1,JanvanderMeulen1,2,KateWalker1,2,JamesHill3,MichaelBraun41ClinicalEffectivenessUnit,RoyalCollegeofSurgeons(England),London,UnitedKingdom.2LondonSchoolofHygieneandTropicalMedicine,London,UnitedKingdom.3CentralManchesterUniversityHospitals,Manchester,UnitedKingdom.4TheChristieHospital,Manchester,UnitedKingdom

P322 AnalSquamousCellCarcinoma.A10-yearcaseseriesatChelseaandWestminsterHospitalsNHSFoundationTrust.

DanielleBrowning1,2,ChristopherKhoo1,CostasSimillis1,Marie-FrancoiseLawson1,ChristosKontovounisios1,OliverWarren1,2,MarkBower1,2,ParisTekkis1,2,SarahMills11ChelseaandWestminsterHospitalsNHSHospitalsTrust,London,UnitedKingdom.2ImperialCollegeLondon,London,UnitedKingdom

P323 UKRectalCancerManagement–AnAlgorithm

CatherineBryant1,HenryLee1,DaniellaDonato-Brown2,ChristopherChan3,41WhittingtonNHSTrust,London,UnitedKingdom.2ImperialCollegeLondon,London,UnitedKingdom.3BartsHealthNHSTrust,London,UnitedKingdom.4QueenMaryUniversityofLondon,London,UnitedKingdom

P324 Isre-evaluationbyMRI,CTanddiscussionatMDTnecessaryafterneoadjuvantradio-chemo-therapyinrectalcancer?

KarenBuskHesseldal1,NinaSonneBundgaard2,TorbenHenrikPold3,OleRoikjær4,PerVadgaardAndersen5,LeneHjerrildIversen11AarhusuniversityHospital,Aarhus,Denmark.2BispebjergHospital,Copenhagen,Denmark.3HerningHospital,Herning,Denmark.4SjællandsUniversitetshospital,Roskilde,Denmark.5OdenseUniversitetshospital,Odensen,Denmark

P325 Ex-vivointra-arterialmethyleneblueinjectionincolorectalcancer

FranciscoCabral1,BárbaraSilveira1,FilipaAntunes2,JoãoMaciel2,RitaBarroca2,RicardoFonseca2,LuisManoel2,PaulaChaves2,ManuelLimbert1,NunoAbecasis21IPOLFG,lisboa,Portugal.2IPOLFG,Lisboa,Portugal

P326 Islocalexcisionforsuspicionofcompletetumorresponseafterradiochemotherapyforrectalcancersafeandfeasible?Acase-matchedstudyversustotalmesorectalexcisionin110patients.

MélanieCalmels,ElisabethHain,LéonMaggiori,JustineProstàlaDenise,YvesPanisBeaujonHospital,Clichy,France

P327 Doesvisceralobesityatdiagnosishaveanimpactononcologicoutcomesofpatientsoperatedforcolorectalcancerwithcurativeintent?

LeonardoCarcamo,EduardoPeñailillo,LucasOberpaur,MariaTeresaMartinez,ValeriaTapia,IsabelaTapia,JulietaKlassen,FelipeBellolio,GonzaloUrrejola,RodrigoMiguieles,MariaElenaMolina,AlvaroZuñiga,TomasLarachPontificiaUniversidadCatólicadeChile,Santiago,Chile

P328 Primaryanastomosisinemergencyresectionforobstructingleftsidedcoloniccancers:isitsafe?

JonathanLeunbach,RichardCassidy,HughPatersonColorectalUnit,WesternGeneralHospital,Edinburgh,UnitedKingdom

P329 Surveyregardingpersonalandfamilymembers’colorectalcancerscreeningamonggeneralsurgeons:apreliminaryresult

SuleymanUtkuCelik,HasanGorkemCay,EsraNurInce,ErsinBayrakdar,YaseminCelik,YunusEmreYucel,AysimaInce,MehmetAliKoc,SiyarErsoz,CihangirAkyolAnkaraUniversitySchoolofMedicine,Ankara,Turkey

P330 ASA3coloncancerpatientswithemergencysurgery

FevziCengiz,KemalErdinçKamer,TuranAcar,HızırTanerCoşkun,HalısBağ,AtahanAcar,MehmetHacıyanlıIzmirKatipCelebiUniversityAtaturkTrainingandResearchHospital,Izmir,Turkey

P331 Pathologiccompleteresponseafterneodyuvanttreatmentinlocallyadvancedrectalcancer,isitpredictableusingpretreatmentinflammatoryindexes?

CarlosCerdán-Santacruz,MireiaMerichal-Resina,LucíaMilla-Collado,PabloMuriel-Álvarez,JordiTarragona-Foradada,JoséEnriqueSierra-Grañón,JorgeJuanOlsina-KisslerHospitalUniversitarioArnaudeVilanova,Lleida,Spain

P332 Oncologicresultsaftersalvagesurgeryforrecurrentcoloncancer.

CarlosCerdán-Santacruz,MireiaMerichal-Resina,LucíaMilla-Collado,PabloMuriel-Álvarez,JordiTarragona-Foradada,JoséEnriqueSierra-Grañón,JorgeJuanOlsina-KisslerHospitalUniversitarioArnaudeVilanova,Lleida,Spain

P333 Oncologicalresultsoflocallyadvancedrectalcancerintheelderly.

MireiaMerichal-Resina,CarlosCerdán-Santacruz,LucíaMilla-Collado,PabloMuriel-Álvarez,NuriaMestres-Petit,JoséEnriqueSierra-Grañón,JorgeJuanOlsina-KisslerHospitalUniversitarioArnaudeVilanova,Lleida,Spain

P335 LS-surgeryofcolorectalcancerwithtransvaginalspecimenextraction:experienceofonecentre.

IlyaCharnikovskiy,ArtemGavriliukov,NinaSavanovich,AlexeySmirnov,VladimirMoyseenkoStPeterburgCancerCentre,StPeterburg,RussianFederation

P336 ImpactofneoadjuvantImatinibtreatmentforrectalGIST

ChinockCheong1,KangYoungLee21AjouUniversitySchoolofMedicine,Suwon,Korea,Republicof.2YonseiUnivsersityCollegeofMedicine,Seoul,Korea,Republicof

P337 Preoperativeassessmentofcircumferentialresectionmargininvolvementinrectalcancerusingmagneticresonanceimaging:canperinodalextensionbedefinedascircumferentialresectionmargininvolvementinrectalcancer?

ChinockCheong1,KangYoungLee21AjouUniversitySchoolofMedicine,Suwon,Korea,Republicof.2YonseiUniversityCollegeofMedicine,Seoul,Korea,Republicof

P338 Exploringlong-termunmetsupportivecareneedsandcopingstrategiesofasiancolorectalcancersurvivors:aqualitativestudy

SungwonYoon1,TeckBengChua2,IainTan3,DawnChong3,MelissaTeo3,DavidMatchar1,ChoongLeongTang4,EmileKWTan41DukeNUS,Singapore,Singapore.2DukeNUSMedicalSchool,Singapore,Singapore.3NationalCancerCentreSingapore,Singapore,Singapore.4DepartmentofColorectalSurgerySingaporeGeneralHospital,Singapore,Singapore

P339 Doesrobotictotalmesorectalexcisionprovideoptimalpathologicoutcomeinoverweightmaleswithlowrectalcancer?Analysisof890cases

AlexandraChudner,CaterinaFoppa,HanjooLee,MahirGachabayov,RobertoBergamaschiWestchesterMedicalCenter,Valhalla,USA

P340 Transanalminimallyinvasivesurgery(TAMIS)forlocalexcisionofselectedrectaltumors:investigatingdifferencesbetweenindividuallearningcurvesandsuggestedinstitutionaltrainingpathway

StefanClermonts1,2,TinavanLoon1,JasperStijns3,HansPottel4,DareczkaWasowicz1,DavidZimmerman11Elisabeth-TweeStedenHospital,Tilburg,Netherlands.2MaastrichtUniversityMedicalCenter,Maastricht,Netherlands.3GasthuisbergUniversityMedicalCenter,Leuven,Belgium.4LeuvenUniversityMedicalCenter,Leuven,Belgium

P341 IsCarmofurapotentialradiosensitizerforlocallyadvancedrectalcancer?

RachaelClifford1,NarenGovindarajah1,DavidBowden1,PaulSutton1,JasonParsons1,DaleVimalachandran21InstituteofCancerMedicine,Liverpool,UnitedKingdom.2TheCountessofChesterHospital,Chester,UnitedKingdom

P342 AqualitivestudyofCancerpatientsperspectiveofthestraighttotesttwo-weekwaitcolorectalcancerpathway,lessonsforpathwayimplementation.

RoryCollins1,PaulineMillan1,MilesGeldhart1,RichardWharton2,GabbyThorpe3,HernonJames21NorwichMedicalSchool,Norwich,UnitedKingdom.2NorfolkandNorwichUniversityHospitalNHSFoundationTrust,Norwich,UnitedKingdom.3UniversityofEastAnglia,Norwich,UnitedKingdom

P343 Canpreoperative18F-FDGPET/CTpredictKRASmutationsinaeuropeanpopulationwithmetastaticcolorectalcancer?

MónicaMogollón,RaquelConde,MarNavarro-Pelayo,FranciscoHuertas,InmaculadaSegura,PabloPalma,TomásTorresVirgendelasNievesUniversityHospital,Granada,Spain

P344 Prognosticimpactinsurvivalofsequential[18F]-FDG-PET/CTbeforeandafterchemoradiotherapyinlocallyadvancedrectalcancer

RaquelConde-Muiño,CarmenFerrer-Castro,MaríaÁngelesHerrero-Torres,InmaculadaSegura-Jiménez,FranciscoHuertas-Peña,PabloPalma,TomásTorres-AlcaláHospitalUniversitarioVirgendelasNieves,Granada,Spain

P345 Theimpactoflaparoscopicversusopenrectalresectionsonthegradeofmesorectalexcision,asystematicreviewandmeta-analysis

BenCreavin,MichaelKelly,EannaRyan,DesWinterStVincent'sUniversityHospitlal,Dublin,Ireland

P346 Abdominoperinealressection–experienceofareferencecenter

RuiCunha1,ManuelMorais2,MarianaSousa3,ManuelLimbert3,LuisManoel3,RitaBarroca3,NunoAbecasis31CentroHospitalarCovadaBeira,Covilhã,Portugal.2FaculdadedeMedicinadaUniversidadedeLisboa,Lisboa,Portugal.3InstitutoPortuguêsdeOncologia,Lisboa,Portugal

P347 Downstagingeffectsofneoadjuvantchemotherapyinlocallyadvancedcoloncancer

MarliesGVerstegen1,JanMariedeGooyer1,Jorine’tLam-Boer1,SandraA.Radema1,RobH.A.Verhoeven2,CeesVerhoef3,JenniferMJSchreinemakers4,JohannesH.W.deWilt11Radboudumc,Nijmegen,Netherlands.2IKNL,Utrechts,Netherlands.3ErasmusMC,Rotterdam,Netherlands.4Amphiahospital,Breda,Netherlands

P348 Adenocarcinomaoftheileoanalpouch

RosaneLouzada1,JULYANNAFRANÇA1,PRISCILLADEMEDEIROS2,EDUARDOVIEIRA1,JOAOPUPONETO11FEDERALUNIVERSITYOFRIODEJANEIRO,RIODEJANEIRO,Brazil.2AERONAUTICSCENTRALHOSPITAL,RIODEJANEIRO,Brazil

P349 Thepredictiveroleofpelvimetryandrestagingmagneticresonanceimagingstudiesinlocallyadvancedrectalcancer:theEuMaRCSstudygroup

Nicolade'Angelis1,AleixMartinez-Perez2,FredericPigneur1,GiulioCesareVitali3,FilippoLandi4,FrancescoBrunetti1,EloyEspin4,FredericRis3,AlainLuciani11HenriMondorUniversityHospital,Creteil,France.2HospitalUniversitarioDoctorPeset,Valencia,Spain.3GenevaUniversityHospitalsandMedicalSchool,Geneva,Switzerland.4HospitalUniversitarioValld’Hebron,Barcelona,Spain

P350 ImpactoftheUkBowelCancerScreeningProgram(BCS)andtheTwoWeeksReferralPathway(2WW)on5yearsColorectalCancer(CRC)Survival

GabrieleDiBenedetto1,PaulHarris1,GiDiBenedetto21RoyalBoltonHospital,Bolton,UnitedKingdom.2MolinetteHospital,Turin,Italy

P351 PostoperativeoutcomesincT4rectalcancerpatientsundergoingstandardormultivisceralresection

LuukDrager,MarliesVerstegen,HansdeWiltRadboudumc,Nijmegen,Netherlands

P352 TheFaecalImmunochemicalTest:FITtoRuleOutBowelCancerinSymptomaticPatients?

NigelD'Souza1,GeorginaHicks1,SallyBenton2,MutiAbulafi11CroydonUniversityHospital,London,UnitedKingdom.2RoyalSurreyCountyHospital,Guildford,UnitedKingdom

P354 Lateanastomoticleakafterrectalresectionincancerpatients.

JanaDziakova1,2,GonzaloSanzOrtega1,InmaculadaDominguezSerrano1,MauricioGarciaAlonso1,JulioMayolMartinez1,AntonioTorresGarcia11HospitalClinicoSanCarlos,Madrid,Spain.2ComplutenseUniversity,Madrid,Spain

P355 FeasibilityofNaturalOrificeSpecimenExtraction(NOSE)SurgeryforColorectalCancerTreatment:Case-matchedStudy

SergeyEfetov,YuriyKitsenko,GalinaMilovanovaClinicofColorectalandMinimallyInvasiveSurgerySechenovFirstMoscowStateMedicalUniversity,Moscow,RussianFederation

P356 Short-termresultsofrighthemicolectomywithD3-lymphnodedissectionforrightcoloncancer

SergeyEfetov,LyudmilaSidorova,K.Kochneva,InnaTulina,PetrTsarkovClinicofColorectalandMinimallyInvasiveSurgerySechenovFirstMoscowStateMedicalUniversity,Moscow,RussianFederation

P357 AreColorectalmalignantpolypcancerguidelinesfollowedandpredictwhichpatientsbenefitfromacolorectalresection?Aretrospectiveaudit

AyomideEkunola1,AaronCarlisle1,RichardWharton2,HernonJames21NorwichMedicalSchool,Norwich,UnitedKingdom.2NorfolkandNorwichUniversityHospitalNHSFoundationTrust,Norwich,UnitedKingdom

P358 Splenicflexurecancerresections,stuckbetweenleft&right.

AhmedElHadi,KatherineMeadows,NigelHall,JamesWheelerCambridgeColorectalUnit,Addenbrooke`sHospital,Cambridge,UnitedKingdom

P359 Riskfactorsofanastomoticleakageaftercolorectalsurgery:ourinstitutionalexperience

MohamedElhemaly,Ibrahimlotfy,WaleedAskar,HelmyEzzatGastrointestinalSurgicalCenter,Mansoura,Egypt

P360 Predictorsforlocalrecurrenceanddistantmetastasisofmucinouscolorectaladenocarcinoma

SamehEmile,AlaaMagdy,WaleedElnahas,OmarHamdy,MahmoudAbdelnaby,WaelKhafagyMansourauniversity,FacultyofMedicine,Mansoura,Egypt

P361 Mappingoncologicalcolorectalsurgerycomplications:Majorroleforfunctionalperformanceoverpatientagerange

MiguelF.Cunha,JoanaRoseira,JuanRachadell,EdgarAmorim,MahomedeAmericanoCentroHospitalareUniversitáriodoAlgarve,Portimao,Portugal

P362 Long-termano-rectalfunctioninrectalcancerpatientstreatedwithradiotherapyandendorectalbrachytherapy(watchfulwaitingcohort).

PiaMøllerFaaborg1,2,SusanneHaas2,JohnPløen3,AndersKristianMøllerJacobsen3,HansBjarkeRahr1,SørenLaurberg2,LillliLundbye2,PeterChristensen2,KlausKrogh41DepartmentofSurgery,DanishColorectalCancerCenterSouth,Vejle,Denmark.2PelvicFloorUnit,DepartmentofSurgeryP,AarhusUniversityHospital,Aarhus,Denmark.3DepartmentofOncology,DanishColorectalCancerCenterSouth,Vejle,Denmark.4NeurogastroenterologyUnit,DepartmentofHepatologyandGastroenterology,AarhusUniversityHospital,Aarhus,Denmark

P363 Accuracyofendoanalultrasoundforlocalstagingofrectalcancerincomparisonwithfinalpathologicfindings

MohammadSadeghFazeli,MohammadRezaKeramati,AmirKeshvari,AlirezaKazemeini,MohaddesehAmini,AmirRezaFazeliTehranUniversityofMedicalSciences,Tehran,Iran,IslamicRepublicof

P364 Ourexperienceinlaparoscopicsurgicaltreatmentofcolorectalcancerinelderlypatients

DmitriyFeoktistov1,2,RustemAiupov1,NikitaTarasov1,MaratGaripov1,NailSuleymanov1,RustemAgliullin1,FelixZainullin2,11RepublicanOncologycalClinicalDispensary,Ufa,RussianFederation.2BashkirsStateMedicalUniversity,Ufa,RussianFederation

P365 Acoreoutcomesetfortrialsofchemoradiotherapyinterventionsforanalcancer(TheCORMACproject):Systematicreview,qualitativeinterviewsandDelphisurvey

RebeccaFish1,2,CarolineSanders3,RichardAdams4,JulieBrewer2,SaraBrookes5,JillDeNardo2,RohitKochhar2,MarkSaunders2,DavidSebag-Montefiore6,PaulaWilliamson7,AndrewRenehan1,2,81UniversityofManchester,DivisionofCancerSciences,Manchester,UnitedKingdom.2TheChristieNHSFoundationTrust,Manchester,UnitedKingdom.3UniversityofManchester,CentreforPrimaryCare,Manchester,UnitedKingdom.4CentreforTrialsResearch,CardiffUniversitySchoolofMedicine,Cardiff,UnitedKingdom.5CancerResearchUKClinicalTrialsUnit,UniversityofBirmingham,Birmingham,UnitedKingdom.6UniversityofLeeds,LeedsCancerCentre,Leeds,UnitedKingdom.7MRCNorthWestHubforTrialsMethodologyResearch,UniversityofLiverpool,Liverpool,UnitedKingdom.8ManchesterCancerResearchCentreandNIHRBiomedicalResearchCentre,Manchester,UnitedKingdom

P366 Doesthelearningcurveoftheroboticrectalcancersurgeryaffectcircumferentialresectionmargin?Ameta-analysisandarisk-adjustedcumulativesumanalysis.C

CaterinaFoppa,KarenYou,MahirGachabayov,RobertoBergamaschiDivisionofColonandRectalSurgery,StateUniversityofNewYork,StonyBrook,NY,USA

P367 Long-termoncologicaloutcomesofrobotictotalmesorectalexcision

GiampaoloFormisano,SofiaEsposito,GiuseppeGiuliani,PasqualeMisitano,AdelonaSalaj,PaoloPietroBianchiMisericordiaHospital,Grosseto,Italy

P368 PatternofreferralforcontactX-raybrachytherapy(Papillon)inpatientsnotsuitableforsurgeryorstomaphobicandrefusingsurgery

VickyFretwell1,FraserSmith1,ChrisRao2,RajSripadam3,KarenWhitmarsh3,LoisBarnes3,KarenJopson3,KatePerkins3,AnnAnderson3,ArthurSunMyint31RoyalLiverpoolandBroadgreenUniversityNHSTrust,Liverpool,UnitedKingdom.2ImperialCollege,London,UnitedKingdom.3ClatterbridgeCancerCentre,Liverpool,UnitedKingdom

P369 Isfollow-upstillmandatorymorethan5yearsaftersurgeryforcolorectalcancer?

AliceFrontali,BenjaminBenichou,IonutValcea,LéonMaggiori,JustineProstàlaDenise,YvesPanisBeaujonHospital,Clichy,France

P370 Theincidenceofcolorectalcancerinyoungpatients–isitincreasing?ApopulationbasedstudyinDenmark

ErikFrostberg1,2,HansB.Rahr11DepartmentofSurgery,ColorectalCancerCenterSouth,VejleHospital,Vejle,Denmark.2InstituteofRegionalHealthServicesResearch,UniversityofSouthernDenmark,Odense,Denmark

P371 Artificialintelligenceinlocaladvancedrectalcancerstaging:utilityofamathematical3d-methodappliedtothemagneticresonanceforr0resection

ALVAROGARCIA-GRANERO1,2,GIANLUCAPELLINO1,MATTEOFRASSON1,JORGESANCHO-MURIEL1,DELFINAFLETCHER-SANFELIU3,BLASFLOR-LORENTE1,FRANCISCOGINER1,EDUARDOGARCIA-GRANERO11HOSPITALUNIVERSITARIOYPOLITECNICOLAFE,VALENCIA,Spain.2HUMANANATOMYANDEMBRYOLOGYDEPARTMENT.UNIVERSITYOFVALENCIA,VALENCIA,Spain.3HOSPITALUNIVERSITARIOSONESPASES,MALLORCA,Spain

P372 RoboticcompletemesocolicexcisionwithcentralvascularligationandIntracorporealanastomosisversuslaparoscopicconventionalapproachinrightsidedcoloncancer.Isthereanydifference?Resultsofamatchedpilotstudy.

MarcosGómezRuiz1,2,3,CarmenCagigasFernandez1,3,LidiaCristobalPoch1,ManuelGómezFleitas1,2,3,JulioCastilloDiego1,31HospitalUniversitarioMarquésdeValdecilla,Santander,Spain.2IDIVAL,Santander,Spain.3UniversidaddeCantabria,Santander,Spain

P373 Acidceramidaseandradioresistanceinrectalcancer–isapoptosisthekeytoanovelmechanism?

NarendranathGovindarajah1,2,RachaelClifford1,2,PaulSutton1,DavidBowden1,JasonLParsons1,DaleVimalachandran2,11UniversityofLiverpool,Liverpool,UnitedKingdom.2CountessofChesterHospital,Chester,UnitedKingdom

P374 SurgicalanatomyoftheDenonvilliersfascia–technicalimplicationsintotalmesorectalexcision

FlorinGrama1,2,TraeanBurcos1,2,DanielCristian1,21ColteaClinicalHospital,Bucharest,Romania.2CarolDavilaUniversityofMedicineandPharmacy,Bucharest,Romania

P375 Correlationbetweenimagingpatternsofresponseandlong-termfunctionaloutcomeincompleterespondingrectalcancerpatientsfollowedwithMRIaspartofawait-and-seeprogram.

HesterE.Haak1,2,DoenjaM.J.Lambregts3,MoniqueMaas3,ThierryN.Boellaard3,AndreaDelliPizzi4,MaritvanderSande1,2,MaxJ.Lahaye3,BrittJ.P.Hupkens1,5,ReginaG.H.Beets-Tan2,3,GeerardL.Beets1,21DepartmentofSurgery,NetherlandsCancerInstitute–AntonivanLeeuwenhoek,Amsterdam,Netherlands.2GROWSchoolforOncologyandDevelopmentalBiology–MaastrichtUniversity,Maastricht,Netherlands.3DepartmentofRadiology,NetherlandsCancerInstitute–AntonivanLeeuwenhoek,Amsterdam,Netherlands.4DepartmentofNeuroscienceandImaging,Gabrieled’AnnunzioUniversity,SS.AnnunziateHospital,Chieti,Italy.5DepartmentofSurgery,MaastrichtUniversityMedicalCentre,Maastricht,Netherlands

P376 SacralbonemarrowchangesandinsufficiencyfracturesonMRIduringlong-termfollow-upafterchemoradiotherapyforrectalcancer.

HesterE.Haak1,2,DoenjaM.J.Lambregts3,MoniqueMaas3,ThierryN.Boellaard3,MaxJ.Lahaye3,ReginaG.H.Beets-Tan3,2,GeerardL.Beets1,21DepartmentofSurgery,NetherlandsCancerInstitute–AntonivanLeeuwenhoek,Amsterdam,Netherlands.2GROWSchoolforOncologyandDevelopmentalBiology–MaastrichtUniversity,Maastricht,Netherlands.3DepartmentofRadiology,NetherlandsCancerInstitute–AntonivanLeeuwenhoek,Amsterdam,Netherlands

P377 OX40+andCD16+predictimprovedoverallsurvivalincolorectalcancerpatients

FabianHaak1,IsabelleObrecht1,NadiaTosti2,BenjaminWeixler1,RobertMechera1,SilvioDäster1,SebastianStaubli1,MarcovonStrauss1,TarikDelko1,GiulioCSpagnoli3,LuigiMTerracciano2,GiuseppeSconocchia4,RaoulADroeser1,3,MarkoKraljevic11DepartmentofSurgery,UniversityHospitalBasel,Basel,Switzerland.2InstituteofPatholgy,UniversityHospitalBasel,Basel,Switzerland.3DepartmentofBiomedicine,UniversityofBasel,Basel,Switzerland.4InstituteofTranslationalPharmacology,CNR,Rome,Italy

P378 Restrospectivereviewofoutcomesofendoscopicsubmucosaldissectionvesuslaparoscopicsurgeryinmanagementofcoloniclateralspreadingtumor(LST)

AlexLikHangLeung,ChiWaiLau,ChungNgaiTangPamelaYoudeNethersoleEasternHospital,HongKong,HongKong

P379 Decreasingdeepsleepingtimemayinduceneutropeniainpatientsundergoingchemotherapywith5-fluorouracil.

KeisukeHara1,TakeshiYamada1,MichihiroKoizumi1,SeiichiShinji1,YasuyukiYokoyama1,GoroTakahashi1,MasahiroHotta1,KohkiTakeda1,KoujiUeda1,HayatoOhwada2,HiroshiYoshida11DepartmentofDigestiveSurgery,NipponMedicalSchool,Tokyo,Japan.2DepartmentofIndustrialAdministration,TokyoUniversityofScience,Chiba,Japan

P380 FGF8:acandidatetargetinradioresistantrectalcancer

FelixHarpain1,EdgarSelzer2,GerdJomrich1,BettinaGrasl-Kraupp3,MichaelGrusch3,BrigitteMarian3,GerdSilberhumer11DepartmentofSurgery,MedicalUniversityofVienna,Vienna,Austria.2DepartmentofRadiotherapyandRadiobiology,MedicalUniversityofVienna,Vienna,Austria.3InstituteofCancerResearch,DepartmentofMedicineI,MedicalUniversityofVienna,Vienna,Austria

P381 Aretrospectivestudycomparingthecomplianceofcolorectalcancerfollowup,withNICEguidance,innurse-ledversusconsultant-ledclinics

PhilipHartley1,KiranpreetGill1,MartinaCusack2,JasonSmith2,NikhilPawa21ImperialCollegeLondon,London,UnitedKingdom.2ChelseaandWestminsterNHSFoundationTrust,London,UnitedKingdom

P382 ThelearningcurveintheNetherlands;resultsoftheimplementationoftransanaltotalmesorectalexcision(TaTME)withthetrainingpathway

MarloesVeltcampHelbach1,StefanOostendorp1,JoepKnol2,JaapBonjer1,ColinSietses3,JurriaanTuynman11VUMedicalCentre,Amsterdam,Netherlands.2JessaZiekenhuis,Hasselt,Belgium.3GelderseVallei,Ede,Netherlands

P383 TheroleofextendedD3mesenterectomyanterior/posteriortothesuperiormesentericvesselsinpatientswithsmallbowelneuroendocrinetumors

AnneHeleneLilleaas1,BojanStimec2,BjørnEdwin3,EspenThiis-Evensen3,ArneBakka1,OlaRøkke1,DejanIgnjatovic11AkershusUniversityHospital,Lørenskog,Norway.2UniversityofGeneva,Geneva,Switzerland.3OsloUniversityHospital,Oslo,Norway

P384 PersonalizedoncologicalresectionofcoloncancerwiththeuseofIndocyanidegreenlymphnodemapping:feasibilitystudy

Man-fungHO1,KaoriFutaba2,Tony,Wing-chungMAK2,Simon,Siu-manNG2,Janet,Fung-yeeLEE11PrinceofWalesHospital,HongKongSAR,HongKong.2ChineseUniversityofHongKong,HongKongSAR,HongKong

P385 Anteriorresectionforrectalcancer:Defunctioningstomaasariskfactorforapermanentstomaandrelationtotheextentofmesorectalexcision

KlasHolmgren1,MarkkuMHaapamäki1,PeterMatthiessen2,JörgenRutegård1,MartinRutegård11DepartmentofSurgicalandPerioperativeSciences,UmeåUniversity,Umeå,Sweden.2DepartmentofSurgery,FacultyofMedicineandHealth,SchoolofHealthandMedicalSciences,ÖrebroUniversity,Örebro,Sweden

P386 Outcomesafterhepaticandpulmonarymetastasectomiescomparedwithpulmonarymetastasectomyaloneinpatientswithcolorectalcancer

TomokoHorie1,2,YukihideKanemitsu1,ShunsukeTsukamoto1,DaiShida11NationalCancerCenter,Tokyo,Japan.2KotoHospital,Tokyo,Japan

P387 PressurisedIntraperitonealAerosolChemotherapy(PIPAC)forColorectalPeritonealCarcinomatosis

InesSilva1,AlexanderHotouras2,JamieMurphy11ImperialCollegeNHSTrust,London,UnitedKingdom.2BartsHealthNHSTrustTheRoyalLondonHospital,London,UnitedKingdom

P388 Theimpactofligationlevelonsurvivalandrecurrenceinrectalcancersurgery

DanielKvernengHultberg1,PetrusBoström1,JennyHäggström2,MarkkuM.Haapamäki2,PeterMatthiessen3,JörgenRutegård1,MartinRutegård11DepartmentofSurgicalandPerioperativeSciences,Surgery,UmeåUniversity,Umeå,Sweden.2DepartmentofStatistics,UmeåSchoolofBusinessandEconomics,UmeåUniversity,Umeå,Sweden.3DepartmentofSurgery,FacultyofMedicineandHealth,SchoolofHealthandMedicalSciences,Örebro,Sweden

P389 HPV-relatedanalprecancerosisscreeninginHIVinfectedMSM:it'spossibile?Firstresults

RobertoPaoloIachetta1,CarlottaRogati2,MargheritaDigaetano2,AlbertoFarinetti2,FrancescoSpatafora2,AlessandraCola1,MonicaPecorari2,ABonazza2,VBorghi2,MMenozzi2,CristinaMussini2,RobertoDinoVillani11NuovoOspedaleCivilediSassuolo,Sassuolo,Italy.2PoliclinicodiModena,Modena,Italy

P390 Increaseofperipherallymphocyte-monocyteratioaftertheprimarysiteresectionsrelatedwiththeprolongedsurvivalinunresectablecolorectalcarcinoma

NobukiIchikawa1,ShigenoriHomma1,TadashiYoshida1,TomokoMitsuhashi2,HiroakiIijima3,KazuhiroOgasawara4,KeizoKazui5,YouKamiizumi6,YosukeOhno1,FutoshiKawamata1,SusumuShibasaki1,HidekiKawamura1,AkinobuTaketomi11DepartmentofGastroenterologicalSurgeryI,GraduateSchoolofMedicine,HokkaidoUniversity,,Sapporo,Japan.2DepartmentofSurgicalPathology,HokkaidoUniversityHospital,Sapporo,Japan.3ClinicalResearchandMedicalInnovationCenter,HokkaidoUniversityHospital,Sapporo,Japan.4DepartmentofSurgery,KushiroRosaiHospital,JapanLabourHealthandWelfareOrganization,Kushiro,Japan.5DepartmentofSurgery,HokkaidoHospital,JapanCommunityHealthcareOrganization,Sapporo,Japan.6DepartmentofSurgery,IwamizawaMunicipalHospital,Iwamizawa,Japan

P391 Secondprimaryrectalcancerfollowingpelvicradiationtherapy–apopulationbasedstudy

AnoukJMRombouts1,MarloesAGElferink2,NiekHugen1,PhilipMPPoortmans1,3,IrisDNagtegaal1,JohannesHWdeWilt11Radboudumc,Nijmegen,Netherlands.2NetherlandsComprehensiveCancerOrganisation,Enschede,Netherlands.3InstitutCurie,Paris,France

P392 Sentinelnodeincoloncancer.

GarciaJonás1,AlvarezLasoCarlos2,DianaRodríguez3,MaríaFolch4,AnaCabrera2,ValentinaSosa5,EusebioMosquera21SeviciodeCirugía.HospitalUniversitariodeCabueñes,Gijón,Spain.2ServiciodeCirugíaHospitalUniversitariodeCabueñes,Gijón,Spain.3ServiciodeAnatomíaPatológicaHospitalUniversitariodeCabueñes,Gijón,Spain.4ServiciodeAnatomíapatológicaHospitalUniversitariodeCabueñes,Gijón,Spain.5ServiciodeCirugía.HospitalUniversitariodeCabueñes,Gijón,Spain

P393 Rectalwashoutdoesnotincreasethecomplicationriskafteranteriorresectionforrectalcancer

FredrikJörgren1,KarlTeurneau-Hermansson1,RebeccaSvenssonNeufert1,PamelaBuchwald21DepartmentofSurgery,HelsingborgHospital,Helsingborg,LundUniversity,Lund,Sweden.2DepartmentofSurgery,SkåneUniversityHospital,Malmö,LundUniversity,Lund,Sweden

P394 Sensitivityofevaluatingmodalitiesforpredictingapathologiccompleteresponseafterpreoperativechemoradiationtherapyforlocallyadvancedrectalcancer

SungWooJung1,ChangSikYu1,SeongHoPark2,JongSeokLee2,AhYoungKim2,JongLyulLee1,ChanWookKim1,YongSikYoon1,InJaPark1,Seok-ByungLim1,JinCheonKim11DivisionofColonandRectalSurgery,DepartmentofSurgery,UniversityofUlsanCollegeofMedicineandAsanMedicalCenter,Seoul,Korea,Republicof.2DepartmentofRadiology,ResearchInstituteofRadiology,UniversityofUlsanCollegeofMedicine,AsanMedicalCenter,Seoul,Korea,Republicof

P395 Incidentalfindingofappendicealtumors

ErdincKamer,DanialKhabbazazar,TuranAcar,GuldenBallı,EmineOzlemGur,HaldunKar,ErcumentTarcan,MehmetHaciyanliIzmirKatipCelebiUniversity,AtaturkTrainingandResearchHospital,DepartmentofSurgery,Izmir,Turkey

P396 Interventionsusedtoimprovecompliancetocolorectalcancerscreeningamongstethnicminorities:asystematicreview

LenojKanageswaran1,NikhilLal2,AzeemMajeed3,NikhilPawa41ImperialCollegeLondon,London,UnitedKingdom.2UniversityofLiverpool,Liverpool,UnitedKingdom.3CLAHRCNWL,ImperialCollegeLondon,London,UnitedKingdom.4CLAHRCNWL,ChelseaandWestminsterHospitalNHSFoundationTrust,London,UnitedKingdom

P397 Impactoftumordepthandnodalpositivityon30-dayoperativeoutcomesfollowingdescendingcolectomy

AngelaKao,MichaelArnold,TanushreePrasad,ToddHeniford,BradleyDavis,KevinKastenCarolinasMedicalCenter,Charlotte,USA

P398 Predictorsofanastomoticleakinascendinganddescendingcolonmalignancies

AngelaKao,KathrynSchlosser,TanushreePrasad,ToddHeniford,BradleyDavis,KevinKastenCarolinasMedicalCenter,Charlotte,USA

P399 TetraspaninCD63independentlypredictspoorprognosisincolorectalcancer

TuomasKaprio,JaanaHagst,LeifAndersson,CajHaglundUniversityofHelsinki,Helsinki,Finland

P400 Malnutritionincidenceinpatientswithcolorectalcancer:AnExperienceofSurgicalClinic

BarkınKabalar1,ErayKara2,HasanAydede2,YamaçErhan21ManisaCelalBayarÜUniversity,Dept.ofGeneralSurgery,Manisa,Turkey.2ManisaCelalBayarUniversity,Dept.ofGeneralSurgery,Manisa,Turkey

P401 Comparisonofpotentialpredictorsofrecurrenceinlocalversusdistantrecurrentrectalcancers

MohammadRezaKeramati1,2,AmirKeshvari1,MohammadSadeghFazeli1,AlirezaKazemeini1,AmirRezaFazeli1,MohammadKazemNouri-taromlou11TehranUniversityofMedicalSciences,Tehran,Iran,IslamicRepublicof.2BartsHealthNHS,DepartmentofColorectalSurgery,London,UnitedKingdom

P402 PrimaryconclusionfromTATMEexperience-themostbenefitfor“difficult”rectalcancerpatients.

DzhumabaevKhasan,RasulovArsen,MamedliZaman,KozlovNikolay,LaptevaMaria,KulushevVadimN.N.BlokhinRussianCancerResearchCenter,Moscow,RussianFederation

P403 Real-timenear-infraredendoscopicprobingofrectalcancerasaclinicaldiagnosticadjunct:pilotstudy

HaseebAnwarKhokhar1,EamonLoughman2,NialMulligan3,DanWu4,DonalO'Shea4,RonanArnoldCahill1,51DepartmentofColorectalsurgery,MaterMisericordiaeUniversityHospital,Dublin,Ireland.2DepartmentofMedicalPhysics,MaterMisericordiaeUniversityHospital,Dublin,Ireland.3DepartmentofPathology,MaterMisericordiaeUniversityHospital,Dublin,Ireland.4DepartmentofMedicinalChemistry,RoyalCollegeofSurgeonsIreland,Dublin,Ireland.5SectionofSurgeryandSurgicalSpecialities,SchoolofMedicine,UniversityCollegeDublin,Dublin,Ireland

P404 Oncologicsafetyoflaparoscopicsurgeryaftermetallicstentinterstionforobstructingleft-sidedcolorectalcancer:amulticentercomparativestudy

MinHyunKim1,Heung-KwonOh1,MyungJoKim1,Duck-WooKim1,Sung-BumKang1,RumiShin2,Seung-ChulHeo2,Eui-GonYouk3,Sung-ChanPark4,DaeKyungSohn4,JaeHwanOh4,MinJungKim5,JiWonPark5,Seung-BumRyoo5,Seung-YongJeong5,KyuJooPark51SeoulNationalUniversityBundangHospital,Seongnam,Korea,Republicof.2SeoulMetropolitanGovernmentSeoulNationalUniversityBoramaeMedicalCenter,Seoul,Korea,Republicof.3DaehangColorectalHospital,Seoul,Korea,Republicof.4NationalCancerCenter,Goyang,Korea,Republicof.5SeoulNationalUniversityHospital,Seoul,Korea,Republicof

P407 PrognosticSignificanceofRadialResectionMarginforColonCancer

MinJungKim1,2,HyoungMinOh3,JiWonPark1,2,Seung-BumRyoo1,KyuJooPark1,BoramPark4,SungChanPark3,DaeKyungSohn3,HeeJinChang3,HeungKwonOh5,Duck-WooKim5,Sung-BumKang5,JaeHwanOh3,Seung-YongJeong1,21DepartmentofSurgery,SeoulNationalUniversityCollegeofMedicine,SeoulNationalUniversityHospital,Seoul,Korea,Republicof.2CancerResearchInstitute,SeoulNationalUniversity,Seoul,Korea,Republicof.3CenterforColorectalCancer,ResearchInstituteandHospital,NationalCancerCenter,Goyang,Korea,Republicof.4BiometricResearchBranch,DivisionofCancerEpidemiologyandPrevention,ResearchInstituteandHospital,NationalCancerCenter,Goyang,Korea,Republicof.5DepartmentofSurgery,SeoulNationalUniversityCollegeofMedicine,SeoulNationalUniversityBundangHospital,Seongnam,Korea,Republicof

P408 Clinicaleffectofhistologicalmixedtypeonprognosisofpatientswithcoloncancer

TakumaKishimoto,TomohiroArita,MasayoshiNakanishi,YoshiakiKuriu,YasutoshiMurayama,MichihiroKudou,KatsutoshiShoda,ToshiyukiKosuga,HirotakaKonishi,RyoMorimura,AtsushiShiozaki,HisashiIkoma,TakeshiKubota,HitoshiFujiwara,KazumaOkamoto,EigoOtsujiDivisionofDigestiveSurgery,DepartmentofSurgery,KyotoPrefecturalUniversityofMedicine,Kyoto,Japan

P409 RiskoflymphnodemetastasisinpatientsundergoingradicalsurgeryforT1andT2colorectaladenocarcinoma

CansuKızıltaş,SultanCemreAyhan,SibelErdamar,ErenEsen,ErmanAytaç,VolkanÖzben,BilgiBaca,İsmailHamzaoğlu,TayfunKarahasanoğlu,ÜmitİnceAcıbademMehmetAliAydınlarUniversity,İstanbul,Turkey

P410 Preoperativeanatomicalroad-mappingreducesvariabilityofoperatingtime,estimatedbloodlossandlymphnodeyieldinrightcolectomywithextendedD3mesenterectomyforcancer

ErikKjaestad1,Christer-DanielWillard1,BojanV.Stimec2,BjornEdwin3,4,DejanIgnjatovic1,41DepartmentofDigestiveSurgery,AkershusUniversityHospital,UniversityofOslo,Oslo,Norway.2FacultyofMedicine,DepartmentofCellularPhysiologyandMetabolism,AnatomySector,UniversityofGeneva,Geneve,Switzerland.3InterventionalCentre,GastrointestinalandPediatricSurgery,OsloUniversityHospital–Rikshospitalet,Oslo,Norway.4InstituteofClinicalMedicine,UniversityofOslo,Oslo,Norway

P411 Distalintramuralspreadofrectalcancerfollowingneoadjuvantchemotherapywithoutradiotherapy

MichihiroKoizumi,TakeshiYamada,SeiichiShinji,YasuyukiYokoyama,GoroTakahashi,TakumaIwai,KeisukeHara,KohkiTakeda,KojiUeda,KeiichiroUeda,HiroshiYoshidaDepartmentofGastrointestinalandHepato-Biliary-PancreaticSurgery,NipponMedicalSchool,Tokyo,Japan

P412 Systematicreviewoftheimpactofsocioeconomic,demographicandreligiousfactorsonqualityoflifeinostomizedcolorectalcancersurvivors

HelleØKristensen,AnneThyø,PeterChristensenDanishCancerSocietyCentreforResearchonSurvivorshipandLateAdverseEffectsAfterCancerinthePelvicOrgans,DepartmentofSurgery,AarhusUniversityHospital,AarhusC,Denmark

P413 Outcomesbetweenright-andleft-sidecoloncancersfollowinglaparoscopicresectionwithradicallymphadenectomy

HANDEOKKWAK,JAEKYUNJU,JARAMLEEChonnamNationalUniversityHospital,Gwangju,Korea,Republicof

P414 Thedistalresectionmargin(DRM)inlowanteriorresection:laparoscopicTMEversustaTME

JamesWFKynaston,StephenDalton,EdwardCourtneyRoyalUnitedHospital,Bath,UnitedKingdom

P415 Managementofearlyanalsquamouscellcancer:observationalcohortstudy

JamesWFKynaston,ThomasMaccabe,IramParwaiz,WilliamCullen,RobertJLongman,DavidMessenger,MichaelGThomasBristolRoyalInfirmary,Bristol,UnitedKingdom

P416 Analsquamouscellcarcinoma(ASCC):atertiaryreferralunit11-yearreview

JamesWFKynaston,IramParwaiz,ThomasMaccabe,WilliamCullen,DavidMessenger,MichaelGThomasBristolRoyalinfirmary,Bristol,UnitedKingdom

P417 Localexcisionofrectalcancer:TheBasingstokeexperiencefrom2005to2017

CheeWanLai,KandiahChandrakumaran,StevenArnold,SanjeevDayal,ArcotVenkatasubramaniam,FaheezMohamed,FrancescoDiFabio,TomCecil,BrendanMoranBasingstokeandNorthHampshireHospital,Basingstoke,UnitedKingdom

P418 Ethnicdisparitiesintheuptakeofcolorectalcancerscreening:asystematicreview

NikhilLal1,AzeemMajeed2,NikhilPawa31UniversityofLiverpool,Liverpool,UnitedKingdom.2CLAHRCNWL,ImperialCollegeLondon,London,UnitedKingdom.3CLAHRCNWL,ChelseaandWestminsterHospitalNHSFoundationTrust,London,UnitedKingdom

P419 AretrospectiveanalysisoftheimpactofsocioeconomicdeprivationontheuptakeofcolorectalcancerscreeninginLondon

NikhilLal1,AzeemMajeed2,NikhilPawa31UniversityofLiverpool,Liverpool,UnitedKingdom.2CLAHRCNWL,ImperialCollegeLondon,London,UnitedKingdom.3CLAHRCNWL,ChelseaandWestminsterHospitalNHSFoundationTrust,London,UnitedKingdom

P420 Indocyninegreen-enhancedfluorescenceangiographyduringroboticrectalcancersurgery:preliminaryresultsfrom25casesatasingleinstitution

DanielLanger,JaroslavKalvach,MiroslavRyskaCentralMilitaryHospital,Prague,CzechRepublic

P421 ExpressionofRNA-bindingMotifProtein3IsAssociatedwithImprovedClinicalOutcomeinColonCancer

WonseokLee1,HoheeChang21GilHospital,Incheon,Korea,Republicof.2DepartmentofBiochemistry,CollegeofMedicine,LeeGilYaCancerandDiabetesInstitute,GachonUniverisity,Incheon,Korea,Republicof

P422 OutcomesoflaparoscopicradicallymphadenectomyaccordingtothepositionofmetastaticlymphnodesforstageIIIcoloncancer

JARAMLEE,JAEKYUNJU,HANDEOKKWAKChonnamNationalUniversityHospital,Gwangju,Korea,Republicof

P423 CorrelationAnalysisbetweenAsciteCEAandRiskFactorsKnownasPredictorsofPeritonealMetastasisofColorectalCancer

InKyuLee,ByungChulKimSeoulSt.Mary'sHospital,TheCatholicUniversityofKorea,Seoul,Korea,Republicof

P424 Necessityofgeneticevaluationofmetachronousmetastasesofcolorectalcancer:Quantitativeanalysisofgeneticdiscordancebetweenmetachronousmetastasesandradicallyresectedprimarycolorectalcancersusingnext-generationsequencing

KyungHaLee,JinSooKim,JiYeonKimChungnamNationalUniversityHospital,Daejeon,Korea,Republicof

P425 Thesignificanceofclinicallyabnormalpelvicsidewall(PSW)nodesonMRIinrectalcancerpatientsfollowingneoadjuvantchemoradiotherapy

HongXiangLee1,2,TimWells1,ChinmayeeJog1,JianLiangLiu2,TarikSammour1,2,JamesMoore1,2,MichelleThomas1,21RoyalAdelaideHospital,Adelaide,Australia.2UniversityofAdelaide,Adelaide,Australia

P426 Thesignificanceofclinicallyabnormallymphnodesatthecircumferentialresectionmargin(CRM)onMRIinrectalcancerpatients

HongXiangLee1,2,TimWells1,ChinmayeeJog1,JianLiangLiu2,TarikSammour1,2,JamesMoore1,2,MichelleThomas1,21RoyalAdelaideHospital,Adelaide,Australia.2UniversityofAdelaide,Adelaide,Australia

P427 Outcomesofsurgeryforcolorectalcancerpatientsinpatients85yearsandolder

RodrigoNemesio,AntonioManso,JulioLeiteCoimbraUniversityHospital,Coimbra,Portugal

P428 TaTMEforlowrectalcancer:short-termoutcomesandspecimenquality

JulioLeite,AnaOliveira,ManuelRosete,RodrigoNemesio,AlexandreMonteiro,MariaKoch,AntonioMansoCoimbraUniversityHospital,Coimbra,Portugal

P429 Cytoreductionandhyperthermicintra-peritonealchemotherapyforcolorectalperitonealcarcinomatosis:resultsoftheassociationofoxaliplatinewithaclosedabdominaltechnique

SandrineBarbois1,DanielLeonard1,EddyCotte2,RaduBachmann1,ChristopheRemue1,NoraAbbesOrabi1,MarcVandenEynde1,AnneJouret-Mourin1,AlexKartheuser11CliniquesuniversitairesSaint-Luc,Brussels,Belgium.2CentreHospitalierUniversitairesdeLyonSud,Lyon,France

P430 Predictorsofreadmissionafterbeyondtotalmesorectalexcisionoperations

FilomenaLiccardo1,DanielBaird1,ShahnawazRasheed1,2,ChristosKontovounisios2,1,3,ParisTekkis2,1,31RoyalMarsdenhospital,London,UnitedKingdom.2DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.3ChelseaWestminsterhospital,London,UnitedKingdom

P431 ThymidinephosphorylaseandCD163+macrophagesinrelationtoMSIstatusincolorectalcancerstageII

DoniaKaidi1,LouisSzeponik2,UlfYrlid2,YvonneWettergren3,ElinorBexeLindskog31UniversityofGothenburg,Gothenburg,Sweden.2InstituteofBiomedicin,UniversityofGothenburg,Gothenburg,Sweden.3InstituteofClinicalSciences,UniversityofGothenburg,Gothenburg,Sweden

P433 Therapyofcolorectalneoplasias–aretherelimitsforendoscopicinterventions?

MathiasLoehnertKlinikumBielefeld,Bielefeld,Germany

P434 AssessmentofremainingtumourinvolvedlymphnodeswithMRIinpatientswithcompleteluminalresponseafterneoadjuvanttreatmentofrectalcancer

PerLoftås1,MargrétSturludóttir2,OlofHallböök3,KarinAlmlöv4,GunnarArbman4,LennartBlomqvist51Institutionforclinicalandexperimentalmedicine,LinköpingUniversity,Linköping,Sweden.,LInköping,Sweden.2DepartmentofDiagnosticRadiology,KarolinskaUniversityhospital,DepartmentofMolecularMedicineandKarolinskaInstitutet.,Stockholm,Sweden.3Institutionforclinicalandexperimentalmedicine,LinköpingUniversity,Linköping,Sweden.4Institutionforclinicalandexperimentalmedicine,LinköpingUniversity,Norrköping,Sweden.5DepartmentofDiagnosticRadiology,KarolinskaUniversityhospital.DepartmentofMolecularMedicineandSurgery,KarolinskaInstitutet.,Stockholm,Sweden

P435 DiagnosisofextranodaltumourdepositsonstagingMRIscaninrectalcancer;descriptionofanunderutilisedprognosticmarker

AmyLord1,AnnabelShaw1,NigelD'Souza1,MutiAbulafi2,BrendanMoran3,ShahnawazRasheed1,GinaBrown11RoyalMarsdenHospital,London,UnitedKingdom.2CroydonUniversityHospital,London,UnitedKingdom.3BasingstokeandNorthHampshireHospital,Basingstoke,UnitedKingdom

P436 MRI-diagnosedextranodaltumourdepositsandextramuralvenousinvasionpredictpoorprognosis

AmyLord1,NigelD'Souza1,AnnabelShaw1,MutiAbulafi2,BrendanMoran3,ShahnawazRasheed1,GinaBrown11RoyalMarsdenHospital,London,UnitedKingdom.2CroydonUniversityHospital,London,UnitedKingdom.3BasingstokeandNorthHampshireHospital,Basingstoke,UnitedKingdom

P437 MRI-diagnosedextranodaltumourdepositsareabetterpredictorofsynchronousmetastasisthanMRI-predictedlymphnodestatus

AmyLord1,NigelD'Souza1,AnnabelShaw1,MutiAbulafi2,BrendanMoran3,ShahnawazRasheed1,GinaBrown11RoyalMarsdenHospital,London,UnitedKingdom.2CroydonUniversityHospital,London,UnitedKingdom.3BasingstokeandNorthHampshireHospital,Basingstoke,UnitedKingdom

P438 10Yearregionalexperienceofsalvagesurgeryforanogenitalsquamouscellcarcinoma

IanLord1,JohnathanMorton1,JamesWheeler1,CharlesWilson1,JustinDavies1,NicolaFearnhead1,onbehalfofCambridgeanalcancercollaboration21Addenbrookes,Cambridge,UnitedKingdom.2Addenbrookes,Cambridghe,UnitedKingdom

P439 Asystematicreviewandmeta-analysisofprognosticbiomarkersinanalsquamouscellcarcinomatreatedwithprimarychemoradiotherapy

ThomasMaccabe,IramParwaiz,MichaelThomas,DavidMessengerBristolRoyalInfirmary,Bristol,UnitedKingdom

P440 Differentialgeneexpressionprofileoftheaquaporin(AQP)genefamilycomponentsinrectalcancer

DimitriosMagouliotis1,VasilikiTasiopoulou2,IoannisBaloyiannis1,GeorgeTzovaras11DepartmentofSurgery,UniversityHospitalofLarissa,Larissa,Greece.2FacultyofMedicine,UniversityofThessaly,Larissa,Greece

P441 Transcriptomicanalysisofthetightjunctionproteinsinrectalcancer

DimitriosMagouliotis,VasilikiTasiopoulou,IoannisBaloyiannis,GeorgeTzovarasDepartmentofSurgery,UniversityHospitalofLarissa,Larissa,Greece

P442 Prognosisofpatientswithobstructivecoloncancer:multivariateanalysisfromaseriesof2,325patients

GillesManceau1,DianeMege2,ValérieBridoux3,ZaherLakkis4,AurélienVenara5,ThibaultVoron6,FrancescoBrunetti7,MehdiOuaissi8,IgorSielezneff2,MehdiKaroui11DepartmentofDigestiveandHepato-Pancreato-BiliarySurgery,Pitié-SalpêtrièreHospital,AssistancePublique-HôpitauxdeParis,SorbonneUniversity,Paris,France.2DepartmentofDigestiveSurgery,TimoneHospital,Aix-MarseilleUniversity,Marseille,France.3DepartmentofDigestiveSurgery,RouenUniversityHospital,Rouen,France.4DepartmentofDigestiveSurgeryandLiverTransplantation,UniversityHospitalofBesançon,Besançon,France.5DepartmentofVisceralSurgery,UniversityHospitalofAngers,Angers,France.6DepartmentofDigestiveSurgery,HôpitalEuropéenGeorges-Pompidou,AssistancePublique-HôpitauxdeParis,UniversityParisV,Paris,France.7DepartmentofDigestive,Hepato-Pancreato-BiliarySurgery,andLiverTransplantation,HenriMondorHospital,AssistancePublique-HôpitauxdeParis,UniversityParisXII,Créteil,France.8DepartmentofHepato-BiliaryandDigestiveSurgery,ToursUniversityHospital,Rouen,France

P443 Managementofobstructivecoloncancersurgeryintheoldestold:resultsofamulticentrestudy

GillesManceau1,DianeMege2,ValérieBridoux3,ZaherLakkis4,AurélienVenara5,ThibaultVoron6,FrancescoBrunetti7,MehdiOuaissi8,IgorSielezneff2,MehdiKaroui11DepartmentofDigestiveandHepato-Pancreato-BiliarySurgery,Pitié-SalpêtrièreHospital,AssistancePublique-HôpitauxdeParis,SorbonneUniversity,Paris,France.2DepartmentofDigestiveSurgery,TimoneHospital,Aix-MarseilleUniversity,Marseille,France.3DepartmentofDigestiveSurgery,RouenUniversityHospital,Rouen,France.4DepartmentofDigestiveSurgeryandLiverTransplantation,UniversityHospitalofBesançon,Besançon,France.5DepartmentofVisceralSurgery,UniversityHospitalofAngers,Angers,France.6DepartmentofDigestiveSurgery,HôpitalEuropéenGeorges-Pompidou,AssistancePublique-HôpitauxdeParis,UniversityParisV,Paris,France.7DepartmentofDigestive,Hepato-Pancreato-BiliarySurgery,andLiverTransplantation,HenriMondorHospital,AssistancePublique-HôpitauxdeParis,UniversityParisXII,Créteil,France.8DepartmentofHepato-BiliaryandDigestiveSurgery,ToursUniversityHospital,Tours,France

P444 Postoperativemortalityofemergencysurgeryforobstructivecoloncancer:multivariateanalysisfromaseriesof2,000patientsandproposalofaspecificscore

GillesManceau1,DianeMege2,ValérieBridoux3,ZaherLakkis4,AurélienVenara5,ThibaultVoron6,FrancescoBrunetti7,MehdiOuaissi8,IgorSielezneff2,MehdiKaroui11DepartmentofDigestiveandHepato-Pancreato-BiliarySurgery,Pitié-SalpêtrièreHospital,AssistancePublique-HôpitauxdeParis,SorbonneUniversity,Paris,France.2DepartmentofDigestiveSurgery,TimoneHospital,Aix-MarseilleUniversity,Marseille,France.3DepartmentofDigestiveSurgery,RouenUniversityHospital,Rouen,France.4DepartmentofDigestiveSurgeryandLiverTransplantation,UniversityHospitalofBesançon,Besançon,France.5DepartmentofVisceralSurgery,UniversityHospitalofAngers,Angers,France.6DepartmentofDigestiveSurgery,HôpitalEuropéenGeorges-Pompidou,AssistancePublique-HôpitauxdeParis,UniversityParisV,Paris,France.7DepartmentofDigestive,Hepato-Pancreato-BiliarySurgery,andLiverTransplantation,HenriMondorHospital,AssistancePublique-HôpitauxdeParis,UniversityParisXII,Créteil,France.8DepartmentofHepato-BiliaryandDigestiveSurgery,ToursUniversityHospital,Tours,France

P445 COLORECTALCANCERINPATIENTSUNDER50:ARETROSPECTIVEMULTICENTERSTUDYONBEHALFOFY-SICO–PRELIMINARYRESULTS.

PatriziaMarsanic1,AndreaMuratore1,AlfredoMellano2,DonatellaMarino2,AnnamariaSquicciarino3,MarcoVeltri4,DarioParini4,MaximilianScheiterle5,SaraPollesel5,LauraLorenzon6,GenoveffaBalducci6,RobertaTutino7,GiuseppeSalamone7,DanielaRega8,PaoloDelrio8,MatteoFrasson9,CarmenMuniesaGallardo9,GaetanoGallo10,11,MarioTrompetto10,StefaniaMartina12,EdoardoCastellano12,GianlucaRizzo13,ClaudioCoco13,FerraraFrancesco14,MarcoStella14,GiulianiGiuseppe15,PietroPaoloBianchi15,LucaTurati16,GiovanniSgroi16,AngeloRestivo17,SimonaDeidda17,RaffaeleDeLuca31Osp.EdoardoAgnelli,Pinerolo,Italy.2IRCCS,Candiolo,Italy.3IstitutoTumoriGiovanniPaoloII,Bari,Italy.4SantaMariadellaMisericordiaHospital,Rovigo,Italy.5UnitofGeneralSurgeryandSurgicalOncology,UniversityofSiena,Siena,Italy.6GeneralSurgeryUnit,FondazionePoliclinicoUniversitarioAgostinoGemelli,CatholicUniversity,Roma,Italy.7DepartmentofSurgical,OncologicalandStomatologicaldisciplines,UniversityofPalermo,Palermo,Italy.8ColorectalSurgicalOncology,InstitutoNazionaleperloStudioeperlaCuradeiTumori,FondazioneGiovanniPascaleIRCCS,Napoli,Italy.9ColorectalUnit,HospitalUniversitarioyPolitecnicolaFe,Valencia,Spain.10DepartmentofColorectalSurgery,S.RitaClinic,Vercelli,Italy.11DepartmentofMedicalandSurgicalSciences,UniversityofCatanzaro,Catanzaro,Italy.12DepartmentofGeneralSurgery,CardinalMassaiaHospital,Asti,Italy.13DepartmentofSurgicalOncology,GemelliHospital,Roma,Italy.14DepartmentofGeneralSurgery,SanCarloHospital,Milano,Italy.15DepartmentofGeneralandMinimallyInvasiveSurgery,MisericordiaHospital,Grosseto,Italy.16DepartmentofSurgicalOncology,TreviglioHospital,Treviglio,Italy.17Dipartimentodiscienzechirurgiche,Universitàdicagliari,Cagliari,Italy

P446 Roboticpelvicmultiorganresectionin23patientswithrectalcancer:analysisinaspecializedroboticcolorectalsurgerycenter

GonzaloP.Martin-Martin1,InsooYang2,AndeeZakaria2,MargaritaGamundi1,FranciscoJ.Gonzalez1,Seon-HahnKim21HospitalUniversitarioSonEspases,PalmadeMallorca,Spain.2KoreaUniversityMedicalCenter,Seoul,Korea,Republicof

P447 TRANSANALABDOMINOPERINEALRESECTIONFORRECURRENTRECTALCANCERBYTWO-TEAMSAPPROACH

BeatrizMartin-Perez,FBorjaDeLacy,VictorTurrado-Rodriguez,SilviaValverde-Lahuerta,AnaOtero-Piñeiro,RaulAlmenara-Santacristina,RaquelBravo-Infante,AntonioMLacyHospitalClinic,Barcelona,Spain

P448 Primarytumoursidednessisimportantprognosticfactorsinpatientswithcolorectalperitonealcarcinomatosis

KenjiMatsuda,ShozoYokoyama,KoichiTamura,HiromitsuIwamoto,YukiMizumoto,HirokiYamaueWakayamaMedicalUniversity,Wakayama,Japan

P449 Influenceofneedlescopicsurgeryonlong-termprognosisafterlaparoscopiccoloncancersurgery

ShimpeiMatsui,YousukeFukunaga,TomohiroYamaguchi,ToshiyaNagasaki,YoshiyaFujimoto,TakashiAkiyoshi,TsuyoshiKonishi,SatoshiNagayama,MasashiUeno,TakeshiSanoCancerInstituteHospital,JapaneseFoundationforCancerResearch,Tokyo,Japan

P450 Obesityaffectedthenumberoflymphnoderetrieval

ShinseiMatsuoka,KojiOkabayashi,MasashiTsuruta,TakashiIshida,TomofumiAndo,NozomiIwama,AkiyoshiIkebata,SatoruMorita,KenYamataka,YokoAdachi,AkitsuguMakino,YukoKitagawaDepartmentofSurgery,SchoolofMedicine,KeioUniversity,Tokyo,Japan

P451 Thesignificanceofarterialbifurcationpositionwhenoperatingsplenicflexurecancer.A3Danalysisofthevascularanatomy.

PrzemyslawMaziarz1,BojanStimec2,ArneOlavBakka1,BjørnEdvin3,DejanIgnjatovic11AhusUniversityHospital,Oslo,Norway.2UniversityofGeneve,Geneve,Switzerland.3OsloUniversityHospital,Oslo,Norway

P452 Howtodecreasetimetocolorectalcancerdiagnosis?–Theresultsofadedicatedpatientpathway

ClémentineMAZOYER1,CorinnePOGU2,EmmanuelCORON1,CorineMENARD3,TamaraMATYSIAK-BOUTNIK1,EmilieDUCHALAIS11CHUdeNantes,Nantes,France.2CapSanté44,Nantes,France.3CHU,Nantes,France

P453 Ratesofobesityincolorectalcancerpatientsfromadeprivedcommunity

EmilyMcFiggans1,YasukoMaeda1,2,3,AshishSinha1,2,3,TusharAgarwal1,4,31DepartmentofSurgery,EalingHospital,London,UnitedKingdom.2DepartmentofSurgery,StMark'sHospital,London,UnitedKingdom.3ImperialCollegeLondon,London,UnitedKingdom.4DepartmentofSurgeryStMark'sHospital,London,UnitedKingdom

P454 Prognosticators,patternsandoutcomeofdiseaserecurrenceaftercurativerectalcancerresection

RossMcMahon,NeilMcDowall,ArijitMukherjeeNHSLanarkshire,Lanarkshire,UnitedKingdom

P455 Surgicalmanagementforobstructiveright-sidedcoloncanceratanationallevelResultsofamulticentrestudyoftheFrenchSurgicalAssociationin776patients

DianeMege1,GillesManceau2,LauraBeyer3,ValérieBridoux4,ZaherLakkis5,AurélienVenara6,ThibaultVoron7,FrancescoBrunetti8,IgorSielezneff9,MehdiKaroui101TimoneHospital,Marseille,France.2LaPitiéSalpétrièrehospital,Paris,France.3HopitalNord,Marseille,France.4CharlesNicollehospital,Rouen,France.5CHU,Besançon,France.6CHU,Angers,France.7GeorgesPompidouEuropeanUniversityHospital,Paris,France.8HenriMondorHospital,Paris,France.9Timonehospital,Marseille,France.10LaPitiéSalpétrière,Paris,France

P456 Transperinealretropubicapproachintotalpelvicexenterationforadvancedandrecurrentcolorectalandanalcancerinvolvingthepenilebase:techniqueandoutcomes

AkashMehta1,GilesHellawell2,DavidBurling3,StephenLittler4,AnthonyAntoniou1,IanJenkins11DepartmentofSurgery,St.Mark'sHospital,London,UnitedKingdom.2DepartmentofUrology,St.Mark'sHospital,London,UnitedKingdom.3DepartmentofGastro-intestinalImaging,St.Mark'sHospital,London,UnitedKingdom.4DepartmentofAnaesthetics,St.Mark'sHospital,London,UnitedKingdom

P457 AnassessmentoftheaccuracyofCTstagingofcolonicneoplasiainadistrictgeneralhospitalintheUnitedKingdom

GiulioCuffolo,SarahHassan,JuliaMerchant,GisellaSalernoWexhamParkHospital,Slough,UnitedKingdom

P458 Laparoscopicapproachisequalinshort-termoncosurgicalmarkersandprovidespotentiallong-termoncologicalbenefitcomparingtoopensurgeryinrectalcancerpatients.

PeterMészáros,TamásMersich,ZsoltDuboczki,TamásSztipits,ÉvaPapp,ÉvaJederán,TamásStrausz,MarcellLipták,TündeNagyNationalInstituteofOncology,Budapest,Hungary

P459 Whatarethefactorsthatinfluenceapatient’sdecisiononwhethertoundergotreatment/resectionforcoloniccancer?Aqualitativeanalysis

PaulineMillan1,MilesGeldhart1,RoryCollins1,RichardWharton2,GabbyThorpe3,JamesHernon21NorwichMedicalSchool,Norwich,UnitedKingdom.2NorfolkandNorwichUniversityHospitalNHSFoundationTrust,Norwich,UnitedKingdom.3UniversityofEastAnglia,Norwich,UnitedKingdom

P460 Roleofmagneticpelvicresonanceinrectalcáncerafterchemoradiotherapy.

FernandoMendoza-Moreno,AnaMaríaMinaya-Bravo,MaríadelRocíoDíez-Gago,RafaelVilleta-Plaza,EnriqueOvejero-Merino,HéctorAguado-López,ManuelDíez-Alonso,FernandoNoguerales-FraguasHospitalUniversitarioPríncipedeAsturias,AlcaládeHenares,Spain

P461 EarlyrecaladenocarcinomaT1.AnewpathologicalclassificationafterTransanalEndoscopicMicrosurgerybasedintheresidualnormalsubmucosa.

LauraMora1,XaviSerra-Aracil2,AnnaPallisera3,SheilaSerra4,AlexCaslots5,JoanCarlesFerreres6,SalvadorNavarro71ColoproctologyUnit.SugicalDepartment.ParcTauliUniversityHospital,Sabadell,Spain.2ColoproctologyUnit.SurgicalDepartment.ParcTauliUniversityHospital,Sabadell,Spain.3ColoproctologyUnit.SurgicalDepartment.ParcTauliUniversityHospital,Sabadell,Spain.4ColoproctologyUnit.SurgicalDepartment.ParcTauliUniversityHospital,Sabdell,Spain.5PathologyDepartment.ParcTauliUniversityHospital,Sabadell,Spain.6PathologyDepartment.ParcTauliUniversityHospital,Sabadell,Spain.7SurgicalDepartment.ParcTauliUniversityHospital,Sabadell,Spain

P462 SIGNETCELLCOLORECTALCANCERSIGNALSVERYPOOROVERALLSURVIVAL

JothiMurugesan,AnthonyGill,AlexanderEngelRoyalNorthShoreHospital,StLeonards,Australia

P463 Diseasefreesurvivalinmalignantcolonicpolyps–alongtermfollowup

JothiMurugesan,AlexanderEngelRoyalNorthShoreHospital,StLeonards,Australia

P464 Colorectalsurgeryinoctogenarians…isthereathreshold!

BalasundaramMuthiah,StephenOdogwu,SalmanMirzaManorHospital,Walsall,UnitedKingdom

P465 Thesurgicalandoncologicalsafetyoflaparoscopiccolectomyincoloncancerpatientwithbulkytumor

ToshiyaNagasaki,TakashiAkiyoshi,TetsuroTominaga,TsuyoshiKonishi,YoshiyaFujimoto,SatoshiNagayama,YosukeFukunaga,MasashiUenoCancerInstituteHospital,JapaneseFoundationforCancerResearch,Tokyo,Japan

P466 TheimpactofunderweightstatusonclinicalandoncologicaloutcomesaftercurativesurgeryforStageI-IIIcolorectalcancer

KeiNakamura,TomohiroArita,MasayoshiNakanishi,YoshiakiKuriu,YasutoshiMurayama,MichihiroKudou,KatsutoshiShoda,ToshiyukiKosuga,HirotakaKonishi,RyoMorimura,AtsushiShiozaki,HisashiIkoma,TakeshiKubota,HitoshiFujiwara,KazumaOkamoto,EigoOtsujiKyotoPrefecturalUniversityofMedicine,Kyoto,Japan

P467 ClinicopathologicAnalysisofLateralMarginofRectalCancerwithWhole-MountSection

SoominNam,YoonjungChoi,JungGuKangNationalHealthInsuranceServiceIlsanHospital,Goyang,Korea,Republicof

P468 TherapeuticStrategyforElderlyPatientswithColorectalCancer

KenjiNanishi,TomohiroArita,MasayoshiNakanishi,YoshiakiKuriu,YasutoshiMurayama,MichihiroKudou,KatsutoshiShoda,ToshiyukiKosuga,HirotakaKonishi,RyoMorimura,AtsushiShiozaki,HisashiIkoma,TakeshiKubota,HitoshiFujiwara,KazumaOkamoto,EigoOtsujiDivisionofDigestiveSurgery,DepartmentofSurgery,KyotoPrefecturalUniversityofMedicine,Kyoto,Japan

P469 Increasingincidenceandadvancedstageofpresentationofcolorectalcancerintheunder50s:improvingawarenessandloweringtheageofscreeningiscrucial

GreggNeagle1,TanvirAbbas1,GarethHopkins1,JohnCamilleri-Brennan1,21ForthValleyRoyalHospital,Stirlingshire,UnitedKingdom.2UniversityofGlasgow,Glasgow,UnitedKingdom

P470 Anatomicalandsurgicalconsequencesofrightcolectomywithextended(D3)mesenterectomyforcancer

JensMariusNesgaard1,BojanVStimec2,ArneOBakka3,4,BjoernEdwin5,4,DejanIgnjatovic3,41Vestfoldhospitaltrust,Tonsberg,Norway.2UniversityofGeneva,Geneva,Switzerland.3Akershusuniversityhospital,Loerenskog,Norway.4UniversityofOslo,Oslo,Norway.5Oslouniversityhospital-Rikshospitalet,Oslo,Norway

P471 EvaluationoftheVirtualClinicconceptforsuspectedcolorectalcancerreferrals

ChoEeNg,SueHemer,ClaireKilbride,JamesAnderson,Vasile-LiviuTituWirralUniversityteachinghospitalNHSfoundationtrust,Liverpool,UnitedKingdom

P472 Systematicreviewonblood/tissuediagnosticmarkersincolorectalcancer

StellaNicolaou1,2,ShengyangQiu1,FrancescaFiorentino1,ShahnawazRasheed1,3,OlliverWarren2,SarahMills2,ParisTekkis1,3,2,ChristosKontovounisios1,3,21DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.2ChelseaWestminsterhospital,London,UnitedKingdom.3RoyalMarsdenhospital,London,UnitedKingdom

P473 Areviewontheprognosticandtherapeuticroleofhormonesincolorectalcancer

StellaNicolaou1,2,ShengyangQiu1,2,FrancescaFiorentino1,ShahnawazRasheed1,3,OlliverWarren2,SarahMills2,ParisTekkis1,3,2,ChristosKontovounisios1,3,21DepartmentofSurgeryandCancerImperialCollge,London,UnitedKingdom.2ChelseaWestminsterhospital,London,UnitedKingdom.3RoyalMarsdenhospital,London,UnitedKingdom

P474 Four-levelconceptbasedonthree-dimensionalmuscularstructuretofacilitatetheunderstandingofsurgicalanatomyforanteriordissectionintrans-analISR/APRofmale

TomoakiOkada1,TatsuroNakamura1,KoyaHida1,KenjiKawada1,AkihiroTakai2,TetsuyaShimokawa3,SeijiMatsuda3,SuguruHasegawa4,HisashiShinohara5,YoshiharuSakai11DepartmentofSurgery,KyotoUniversityGraduateSchoolofMedicine,Kyoto,Japan.2DepartmentofHBPandBreastSurgery,EhimeUniversityGraduateSchoolofMedicine,Ehime,Japan.3DepartmentofAnatomyandEmbryology,EhimeUniversityGraduateSchoolofMedicine,Ehime,Japan.4DepartmentofGastroenterologicalSurgery,FukuokaUniversityFacultyofMedicine,Fukuoka,Japan.5DepartmentofSurgery,HyogoCollegeofMedicine,Hyogo,Japan

P475 OurexperiencewithColorectalcancerrate,threeyearspostcolonoscopy

LauraPage,ShukerYahia,EmilyHero,FaithHirri,AravindanNarayananGeorgeEliotHospital,Nuneaton,UnitedKingdom

P476 TheaccuracyofCTscaninpredictingtumourandnodalstagingincoloncancer

IoannaG.Panagiotopoulou,RuthTownend,KonstantinosStasinos,NicolaS.Fearnhead,JamesM.D.WheelerCambridgeUniversityHospitalsNHSTrust,Cambridge,UnitedKingdom

P477 Themanagementofinvolvedpelvicsidewalllymphnodesinpatientswithprimaryrectalcancer

IoannaG.Panagiotopoulou,ElizabethM.Tweedle,JonathanR.Morton,R.JustinDavies,NicolaS.Fearnhead,JamesM.D.WheelerCambridgeUniversityHospitalsNHSTrust,Cambridge,UnitedKingdom

P478 ElevatedpreoperativeHbA1cisanindependentriskfactorformajorpostoperativecomplicationsinmenfollowingsurgeryforcolorectalcancer

AminaParacha,HenrikIversen,ChristianBuchliDepartmentofMolecularMedicineandSurgery,KarolinskaInstitutetandCenterforDigestiveDiseases,KarolinskaUniversityHospital,Stockholm,Sweden

P479 Tworegimensofintraperitonealchemotherapyaftercytoreductivesurgeryimprovedsurvivalofpatientswithcolorectalperitonealmetastases

SooYeunPark1,JunSeokPark1,HyeJinKim1,Gyu-SeogChoi1,JongGwangKim2,ByungWoogKang21ColorectalCancerCenter,KyungpookNationalUniversityMedicalCenter,,Daegu,Korea,Republicof.2DepartmentofOncology/Hematology,KyungpookNationalUniversityHospital,SchoolofMedicine,KyungpookNationalUniversity,Daegu,Korea,Republicof

P480 Isthereanydifferenceinlong-termcancerrecurrencebetweenlaparoscopicandroboticsurgeryinmid/lowrectalcancer?

SooYeunPark,JunSeokPark,HyeJinKim,InTaekWoo,InKyuPark,Gyu-SeogChoiDepartmentofSurgery,SchoolofMedicine,KyungpookNationalUniversity,Daegu,Korea,Republicof

P481 OncologicOutcomesofColorectalCancerPatientswithInfrarenalParaaorticLymphNodeMetastasis:ResultsofSelectiveSurgicalTreatmentataSingleTertiaryHospital

SooYeunPark,JunSeokPark,HyeJinKim,InTaekWoo,InKyuPark,Gyu-SeogChoiDepartmentofSurgery,SchoolofMedicine,Daegu,Korea,Republicof

P482 DefiningCT-derivedsarcopeniatoinformtrialsoftargetedlifestyleinterventioninpatientswithcolorectalcancer

EdParkin1,2,SeanYoung1,SarrinderKenyon1,LeeMalcolmson1,2,AndrewRenehan1,21TheColorectalandPeritonealOncologyCentre,TheChristieHospital,Manchester,UnitedKingdom.2DivisionofCancerSciences,UniversityofManchester,Manchester,UnitedKingdom

P483 Indicationsandoutcomesforpouchexcisioninpatientswithfamilialadenomatouspolyposis(FAP)

RoshaniPatel1,2,ChukwuemekaAnele1,2,AlexandervonRoon2,SusanKClark1,2,AndrewLatchford11StMark'sHospitalandAcademicInstitute,Harrow,UnitedKingdom.2DepartmentofSurgeryandCancer,ImperialCollegeLondon,London,UnitedKingdom

P484 VariationincomplianceofethnicminoritiestobowelcancerscreeninginWestLondon

NikhilPawa1,NikhilLal2,AzeemMajeed31CLAHRCNWL,ChelseaandWestminsterHospitalNHSFoundationTrust,London,UnitedKingdom.2UniversityofLiverpool,Liverpool,UnitedKingdom.3CLAHRCNWL,ImperialCollegeLondon,London,UnitedKingdom

P485 Short-termoutcomesofexenterativepelvicsurgeryforprimaryandrecurrentmalignanciesindifferentagegroups.

GianlucaPellino1,2,DanielBaird1,3,ShahnawazRasheed1,3,4,ChristosKontovounisios1,3,4,ParisTekkis1,3,41DepartmentofColorectalSurgery,RoyalMarsdenHospital,London,UnitedKingdom.2DepartmentofMedical,Surgical,Neurological,MetabolicandAgeingSciences,UniversitádellaCampania"LuigiVanvitelli",Naples,Italy.3DepartmentofSurgeryandCancer,ImperialCollege,London,UnitedKingdom.4DepartmentofColorectalSurgery,ChelseaandWestminsterHospital,London,UnitedKingdom

P486 Unusualbehavoirofrectalneuroendocrinecarcinomawithsinglemetachronicmetastasisinthebreast

LuisEduardoPérez-Sánchez,MoisesHernández-Barroso,AnaSoto-Sánchez,GuillermoHernández-Hernández,NélidaDíaz-Jiménez,IreneVilela-Ferrer,AliciaGoya-Pacheco,JoséGregorioDíaz-Mejías,LuisaGambra-Michel,ManuelÁngelBarrera-GómezUniversityHospitalNuestraSeñoradeCandelaria,SantaCruzdeTenerife,Spain

P487 Analysisofourexperienceinpreoperativestagingofrectalcancerthroughtheuseofmagneticresonance

LuisEduardoPérez-Sánchez,AnaSoto-Sánchez,MoisesHernández-Barroso,GuillermoHernández-Hernández,NélidaDíaz-Jiménez,IreneVilela-Ferrer,LuisaGambra-Michel,JoseGregorioDíaz-Mejías,AliciaGoya-Pacheco,ManuelÁngelBarrera-GómezUniversityHospitalNuestraSeñoradeCandelaria,SantaCruzdeTenerife,Spain

P488 Isitreallyroboticsurgeryforrectalcancernonsuperiortothelaparoscopicapproach,inexperthands?Ourexperiencefromatertiarycareuniversityhospital

ThaliaPetropoulou,emirfonzafer,shwanaminsheffieldteachinghospital,sheffield,UnitedKingdom

P489 EFFECTOFAGEANDCOMORBIDITIESONSHORT-ANDLONG-TERMRESULTSINPATIENTSUNDERGOINGLAPAROSCOPICCURATIVERESECTIONFORRECTALCANCER:ACOHORTSTUDY

GiuseppePortale1,AlessandroValdegamberi1,FrancescoCavallin2,FlavioFrigo1,ValentinoFiscon11ULSS6Euganea,Cittadella,Italy.2Independentstatistician,Solagna,Italy

P490 LAPAROSCOPICCURATIVERESECTIONFORRECTALCANCER:ACOHORTSTUDYONLONG-TERMOUTCOME

GiuseppePortale1,AlessandroValdegamberi1,FrancescoCavallin2,FlavioFrigo1,ValentinoFiscon11ULSS6Euganea,Cittadella,Italy.2Independentstatistician,Solagna,Italy

P491 PLATLET-TO-LYMPHOCYTERATIOANDNEUTROPHIL-TO-LYMPHOCYTERATIOARENOTPROGNOSTICBIOMARKERSINRECTALCANCERPATIENTSWITHCURATIVERESECTION

GiuseppePortale1,FrancescoCavallin2,AlessandroValdegamberi1,FlavioFrigo1,ValentinoFiscon11ULSS6Euganea,Cittadella,Italy.2Independentstatistician,Solagna,Italy

P492 ISPROGNOSTICNUTRITIONALINDEXAUSEFULTOOLTOPREDICTSHORT-TERMCOMPLICATIONSAFTERLAPAROSCOPICCURATIVERESECTIONFORRECTALCANCER?

GiuseppePortale1,fraCavallin2,AlessandroValdegamberi1,FlavioFrigo1,ValentinoFiscon11ULSS6Euganea,Cittadella,Italy.2Independentstatistician,Solagna,Italy

P493 Lateresultsofcoloncancerresectionsforobesepatients

EligijusPoskus1,2,DonatasDanys1,2,GabijaMakunaite1,GiedreSmailyte3,JuliusPacevicius1,TomasPoskus1,2,SauliusMikalauskas1,2,ValdemarasJotautas1,2,KestutisStrupas1,21VilniusUniversityFacultyofMedicine,Vilnius,Lithuania.2CentreofAbdominalSurgery,VilniusUniversityHospitalSantarosClinics,Vilnius,Lithuania.3NationalCancerInstitute,Vilnius,Lithuania

P494 Transanalendoscopicmicrosurgeryforrectaltumors:singleclinicexperience

VolodymyrPyrogovsky1,YaroslavFeleshtynsky2,BohdanSorokin2,SergiiZadorozhnii1,DmytroLutsenko2,AndriyNoyes11KyivRegionalHospital,Kyiv,Ukraine.2NationalMedicalAcademyofPostgraduateEducation,Kyiv,Ukraine

P495 PerinealherniationfollowingextralevatorAPERforrectalcancer-asinglecenterexperience

MohammedEl-Farran,MarjanRaad,MSaeedQureshi,AfiqPouzi,JamesPitt,ArshadMalikIpswichhospital,Ipswich,UnitedKingdom

P496 Oncologicaloutcomesafterleftandrightsidedsurgeryintheover-80s

NiroshiniRajaretnam,BalajiMahendran,PeterLabib,ElizabethEwers,BenRossi,SebastianSmolarekDerrifordHospital,Plymouth,UnitedKingdom

P497 TreatmentandsurvivalamongDanishpatientswithcolorectalsynchronousperitonealmetastases

SisselRavn1,UffeHeide-Jørgensen2,ChristianFynboChristiansen2,RikkeHjarnøHageman-Madsen3,VictorJilbertVerwaal1,LeneHjerrildIversen1,41DepartmentofSurgery,ColorectalSurgicalUnit,AarhusUniversityHospital,Aarhus,Denmark.2DepartmentofClinicalEpidemiology,AarhusUniversityHospital,Aarhus,Denmark.3DepartmentofPathology,LillebaeltHospital,Vejle,Denmark.4DanishColorectalCancerGroup(DCCG.dk),Copenhagen,Denmark

P498 IncidenceandprevalenceofperitonealmetastasesamongDanishpatientswithcolorectalcancer

SisselRavn1,UffeHeide-Jørgensen2,ChristianFynboChristiansen2,RikkeHjarnøHageman-Madsen3,VictorJilbertVerwaal1,LeneHjerrildIversen1,41DepartmentofSurgery,ColorectalSurgicalUnit,AarhusUniversityHospital,Aarhus,Denmark.2DepartmentofClinicalEpidemiology,AarhusUniversityHospital,Aarhus,Denmark.3DepartmentofPathology,LillebaeltHospital,Vejle,Denmark.4DanishColorectalCancerGroup(DCCG.dk),Copenhagen,Denmark

P499 Doespelvicradiationincreaserectalcancerincidence?–asystematicreviewandmeta-analysis

AnoukJMRombouts1,NiekHugen1,JasperJPvanBeek1,PhilipMPPoortmans1,2,JohannesHWdeWilt1,IrisDNagtegaal11Radboudumc,Nijmegen,Netherlands.2InstitutCurie,Paris,France

P500 Preoperativelocaltumourstaginginpatientswithlocallyadvancedcoloncancerimprovesoverallsurvival

EmmaRosander1,2,TorbjörnHolm1,3,FredrikHjern1,3,CarolineNordenvall1,31KarolinskaInstitutet,Stockholm,Sweden.2DanderydHospital,Stockholm,Sweden.3KarolinskaUniversityHospital,Stockholm,Sweden

P501 Whatisthebestsurgicalapproachforpuresplenicflexuretumours?

ArantxaVilladoniga,InesRubio-Perez,EstibalizAlvarez,BegoñaPeinado,LuisAsensio,CarolinaGonzalez,JoseLMarijuan,IsabelPascualHospitalUniversitarioLaPaz,Madrid,Spain

P502 WhatisthebestsurgicaloptionforrighthemicolectomyforrightcoloncancerinASA3-4patients(one-stagevstwo-stagesprocedure)?

SoumayaBekada,CharlesSabbagh,EmilieChapuis-Roux,AurélienGracient,EmmanuelLorne,KevinAllart,Jean-MarcRegimbeauUniversityhospitalofAmiens-Picardie,Amiens,France

P503 Neoadjuvantlong-coursechemoradiotherapy(ChemoRT)improvesshort-termoutcomesinrectalcancer

IsaacSeow1,ChongZhengNg2,JoshuaGoh3,IainTan4,TianRuiSiow4,LionelCheng5,NyeThaneNgo6,ChoongLeongTang1,EmileKWTan11DepartmentofColorectalSurgerySingaporeGeneralHospital,Singapore,Singapore.2NUSYongLooLinSchoolofMedicine,Singapore,Singapore.3NUSYongLooLin,Singapore,Singapore.4NationalCancerCentreSingapore,Singapore,Singapore.5DepartmentofDiagnosticRadiologySingaporeGeneralHospital,Singapore,Singapore.6DepartmentofHistopathologySingaporeGeneralHospital,Singapore,Singapore

P504 Roboticsurgeryforrectalcancer;607consecutivecasesinasingleinstitute

AkioShiomi,HiroyasuKagawa,YushiYamakawa,HitoshiHino,SyoichiManabe,YusukeYamaokaShizuokaCancerCenterHospital,Shizuoka,Japan

P505 Riskfactorsandemergencyvisitingofstoma-relatedcomplicationsafterlaparoscopicrectalsurgerywithtemporaryloopstoma

TakuyaShiraishi,YujiNishizawa,TakeshiSasaki,YuichiroTsukada,KojiIkeda,MasaakiItoNationalCancerCenterHospitalEast,Chiba,Japan

P506 Aredepartmentalguidelinesofcarcinoembryonicantigenassaylevelsbeingadheredtoforpre-therapeuticdecisionmaking?anauditofcurrentpractice

SanjayDindyal,AlistairSlesser,YasserMohsen,AlistairMyersTheHillingdonHospital,London,UnitedKingdom

P507 Narrow-bandimagingimprovesdetectionofcolorectalperitonealmetastases:aclinicalstudycomparingadvancedimagingtechniques

NinaSluiter,StijnVlek,ArthurWijsmuller,ThijsBrandsma,HenricaDeVet,NicoleVanGrieken,GeertKazemier,JurriaanTuynmanVUUniversityMedicalCenter,Amsterdam,Netherlands

P508 Factorsdeterminingcomparativesurvivalinyoungandnon-youngcolorectalcancerpatients

ManolSokolov,PetarGribnev,SvilenMaslyankov,KostadinAngelov,GeorgiTodorovMedicalUniversity,UniversityHospitalAlexandrovska,Sofia,Bulgaria

P509 Long-termsurvivalandqualityoflifefollowingpelvicexenteration

MichaelSolomon1,2,3,CherryKoh1,2,JaneYoung1,2,3,DanielSteffens1,21SurgicalOutcomesResearchCentre(SOuRCe),Sydney,Australia.2TheUniversityofSydney,Sydney,Australia.3RPAInstituteofAcademicSurgery(IAS),Sydney,Australia

P510 Sacrectomyfunctionaloutcomesfollowingpelvicexenterationforprimaryandrecurrentpelvicmalignancy

MichaelSolomon1,2,3,AlexanderMcCarthy1,CherryKoh1,2,JaneYoung1,2,3,DanielSteffens1,21SurgicalOutcomesResearchCentre(SOuRCe),Sydney,Australia.2TheUniversityofSydney,Sydney,Australia.3RPAInstituteofAcademicSurgery(IAS),Sydney,Australia

P511 Fast-trackedcompetencythroughanexternallymentoredprogram.Earlyexperienceofasingletertiarycentrewithmanagementofperitonealmalignancies

MichaelSolomon1,NabilaAnsari1,KilianBrown1,CherryKoh1,KateMcBride1,DanielSteffens1,ChristopherYoung1,JaneYoung1,BrendanMoran21RoyalPrinceAlfredHospital,Sydney,Australia.2PeritonealMalignancyInstitute.Basingstoke,Basingstoke,UnitedKingdom

P512 QualityoflifeaftercytoreductivesurgeryandHIPEC.Shorttermoutcomesfromaprospectivecohortstudy

MichaelSolomon1,NabilaAnsari1,CherryKoh1,KilianBrown1,DanielSteffens1,KateMcBride1,JaneYoung1,ChristopherYoung1,BrendanMoran21RoyalPrinceAlfredHospital,Sydney,Australia.2PeritonealMalignancyInstitute.Basingstoke,Basingstoke,UnitedKingdom

P513 Oncologicriskofunintendedorganpreservationafterchemoradiotherapyformidorlowrectalcancer:thedouble-edgedswordofintendedorganpreservation

Kwang-SeopSong1,SungChanPark1,DaeKyungSohn1,JaeHwanOh1,MinJungKim2,JiWonPark2,Seung-BumRyoo2,Seung-YongJeong2,KyuJooPark2,Heung-KwonOh3,Duck-WooKim3,Sung-BumKang31NationalCancerCenter,Goyang,Korea,Republicof.2SeoulNationalUniversityHospital,Seoul,Korea,Republicof.3SeoulNationalUniversityBundangHospital,Seongnam,Korea,Republicof

P514 Supplementationwithomega-3fattyacidsandsurvivalaftercolorectalcancersurgery–arandomisedcontrolledtrial

LoneSchmidtSørensen1,SimonLadefogedRasmussen1,MetteNytoftYilmaz2,OleThorlacius-Ussing11Departmentofgastroentestinalsurgery,AalborgUniversityhospital,Aalborg,Denmark.2Departmentofonkology,Aalborguniversityhospital,Aalborg,Denmark

P515 Trendsofevolutionofkirwanscoreafterperinealpseudocontinentcolostomyforultra-lowrectaladenocarcinoma

AmineSouadka,MohammedAnassmajbar,AmineBenkabbou,RaoufMohsine,AbdelilahSouadkaNationalinstitutofoncology,Rabat,Morocco

P516 Threeyearsfunctionalandoncologicalresultsafterlowrectaladenocarcinomasurgery-moroccanCohortstudy-

AmineSouadka,MohammedAnassMajbar,AmineBenkabbou,SaraBenchemsi,AbdesslamBogtab,RaoufMohsineNationalinstitutofoncology,Rabat,Morocco

P517 DoesroboticTMEforrectalcancerleadtoimprovedsurvivalat3years?

SamuelStefan1,2,SyedNaqvi1,KarenFlashman1,FilipposSagias1,JimKhan1,21PortsmouthHospitalsNHSTrust,Portsmouth,UnitedKingdom.2UniversityofPortsmouth,Portsmouth,UnitedKingdom

P518 UtilityofcirculatingtumorDNAtoassesstumordynamicsforanorectalmalignantmelanoma

GoroTakahashi,TakeshiYamada,MichihiroKoizumi,SeiichiShinji,YasuyukiYokoyama,MasahiroHotta,TakumaIwai,KohkiTakeda,KeisukeHara,HiroshiYoshidaNipponMedicalSchool,Tokyo,Japan

P519 TheroleofRASandBRAFmutationasprognosticfactordependingontumorsidednessinstageIIIcolorectalcancer.

MichitoshiTakano,ShinsukeKazama,YusukeNishizawa,YojiNishimura,HirohikoSakamoto,KiwamuAkagiSaitamaCancerCenter,Kita-adachigun,Saitama,Japan

P520 Therapeuticeffectofneoadjuvantchemoradiotherapyforlocallyadvancedlowerrectalcancer;sphincterpreservationandfunction

NobuhiroTakiguchi,ToruTonooka,HiroakiSoda,AtsushiIkeda,IsamuHoshino,HisashiGunji,ArihitoYoshizumi,YoshihiroNabeyaDivisionofGastrointestinalSurgery,ChibaCancerCenter,Chiba,Japan

P521 Propensityscoreanalysisofshortandlongtermsoutcomesfollowingcurativesurgeryforrectalcancerinelderly.

NicolòTamini1,AlessandroGiani1,SimoneFamularo1,MauroMontuori1,LucaGianotti1,21AsstMonza-OspedaleSanGerardo,Monza,Italy.2UniversitàdeglistudiMilanoBicocca,Milano,Italy

P522 Impactofnew2-weekswaitsuspectedcolorectalcancerreferralproformaoncaseload,colorectalcancerandotherbodysitecancerspickuprate

ChihYingTan,RahulKanitkar,RoshanLal,KamalAryalJamesPagetUniversityHospital,GreatYarmouth,UnitedKingdom

P523 Transanaltotalmesorectalexcisionforrectalcancer:asinglecentreexperience

MarkTaylor,StephenDalton,EdwardCourtneyRoyalUnitedHospital,Bath,UnitedKingdom

P524 Systematicreviewofpostoperativemortalityfollowingcolorectalresectionforcancerinlow-andmiddle-incomecountries

SitaTechaboonanake,JamesGlasbey,DmitriNepogodiev,AneelBhanguNIHRUnitonGlobalSurgery,UniversityofBirmingham,Birmingham,UnitedKingdom

P525 Preoperativechemotherapyforlocallyadvancedrectalcancer

ToruTonooka,NobuhiroTakiguchi,YoshihiroNabeya,AtsushiIkeda,HiroakiSoda,HisashiGunji,IsamuHoshino,ArihitoYoshizumiChibaCancerCenter,Chiba,Japan

P526 Lowrateoflocalrecurrencedetectionbyrectoscopyinfollow-upofrectalcancer

PerKristianTronstad,LiseHumeSimpson,BjørnOlsen,FrankPfeffer,AnneKarliczekDepartmentofGastroenterologicsurgery,HaukelandUniversityHospital,Bergen,Norway

P527 TheManagementOfPelvicHemorrhageDueToOncologicalSurgery

TurkishColonandRectumSurgicalSocietyPelvicHemorrhageStudyGroupTKRCD,Istanbul,Turkey

P528 Theroleoflaparscopicsurgeryforemergencyresectionofcolorectalcancer:apopulation-basedstudy

AbigailVallance1,DeborahKeller2,JamesHill3,MichaelBraun4,AngelaKuryba1,JanvanderMeulen1,KateWalker1,ManishChand21RoyalCollegeofSurgeonsofEngland,London,UnitedKingdom.2DepartmentofSurgeryandInterventionalSciences,GENIECentre,UniversityCollegeLondon,London,UnitedKingdom.3DepartmentofColorectalSurgery,ManchesterRoyalInfirmary,Manchester,UnitedKingdom.4DepartmentofMedicalOncology,TheChristieNHSFoundationTrust,Manchester,UnitedKingdom

P529 Endoscopicfeaturesofresponsetoneoadjuvant(chemo)radiotherapyforrectalcancer:preliminaryresults

MaritvanderSande1,MoniqueMaas1,JarnoMelenhorst2,StephanieBreukink2,ReginaBeets-Tan1,3,MoniquevanLeerdam1,GeerardBeets1,31TheNetherlandsCancerInstitute,Amsterdam,Netherlands.2MaastrichtUniversityMedicalCentre,Maastricht,Netherlands.3GROWSchoolforOncologyandDevelopmentalBiology,Maastricht,Netherlands

P530 ComplicationsandimpactonqualityoflifeofVerticalRectusAbdominisMyocutaneous(VRAM)flapsforreconstructioninpelvicexenterationsurgery

GabriellevanRamshorst1,2,3,JaneYoung4,5,6,MichaelSolomon1,4,61RoyalPrinceAlfredHospital,DepartmentofColorectalSurgery,RoyalPrinceAlfredHospital,Sydney,Australia.2VUMedicalCenter,Amsterdam,Netherlands.3TheNetherlandsCancerInstitute,Amsterdam,Netherlands.4SurgicalOutcomesResearchCentre(SOuRCe),RoyalPrinceAlfredHospital,Sydney,Australia.5TheUniversityofSydney,SchoolofPublicHealth,Sydney,Australia.6InstituteofAcademicSurgeryatRoyalPrinceAlfredHospital,Sydney,Australia

P531 Localexcisionforrectalcancer;apopulation-basedoverviewofclinicalpracticeandoutcome

MariaVerseveld1,2,JohannesdeWilt3,MarloesElferink4,EelcodeGraaf5,CornelisVerhoef2,SjaakPouwels1,PascalDoornebosch51FranciscusGasthuis&Vlietland,Rotterdam,Netherlands.2ErasmusMCCancerInstitute,Rotterdam,Netherlands.3RadboudUniversityMedicalCenter,Nijmegen,Netherlands.4NetherlandsComprehensiveCancerOrganisation,Enschede,Netherlands.5IJssellandHospital,CapelleaandenIJssel,Netherlands

P532 Utilityofroutinehistologicalexaminationofstaplerdoughnutsatlowanteriorresectionforrectalcancer.

IreneFerrerVilela,MoisésHernándezBarroso,AnaSotoSánchez,GuillermoHernándezHernández,NélidaDíazJimenez,EduardoPérezSánchez,AliciaGoya,LuisaElenaGambraMichel,JoséGregorioDíazMejías,ManuelBarreraGómezHospitalUniversitarioNuestraSeñoradelaCanderlaria,SantaCruzdeTenerife,Spain

P533 TumoralresponsetoneoadjuvanttherapyinT3brectalcancer.

IreneFerrerVilela,AnaSotoSánchez,MoisésHernándezBarroso,GuillermoHernándezHernández,NélidaDíazJimenez,EduardoPérezSánchez,JoséGregorioDíazMejías,AliciaGoya,LuisaElenaGambraMichel,ManuelÁngelBarreraGómezHospitalUniversitarioNuestraSeñoradelaCanderlaria,SantaCruzdeTenerife,Spain

P534 Secondprimarycolorectalcanceramongthepatientswithendometrialcancer-aserialstudy

SergeyIliev,PaulinaVladovaMedicalUniversity,Pleven,Bulgaria

P535 Disqualificationofneoadjuvantrectal(NAR)scorebasedondataof6596patientsfromtheNetherlandsCancerRegistry

FlorisVuijk1,MaximevanderValk1,HeinPutter1,CornelisvandeVelde1,GeerardBeets2,DeniseHilling11LUMC,Leiden,Netherlands.2NKI-AVL,Amsterdam,Netherlands

P536 Rectalcancer:TheBasingstokeexperiencefrom2005to2017

CheeWanLai,KandiahChandrakumaran,StevenArnold,SanjeevDayal,ArcotVenkatasubramaniam,FaheezMohamed,FrancescoDiFabio,TomCecil,BrendanMoranBasingstokeandNorthHampshireHospital,Basingstoke,UnitedKingdom

P537 Riskofstageprogressionafterneoadjuvanttreatment&abdominoperinealexcisionforlocallyadvancedlowrectalcancer

RahaAlahmadi1,MohammedWidinly1,AsimAlmughamsi2,MahfouthMohammed3,AlaaAbduljabbar1,LuaiAshari1,HadeelAlmanea1,HussahAlhussaini1,AbdullahAlsuhaibani1,AhmadAlzahrani1,AliAljubran1,ShoukiBazarbashi1,NasserAlsanea1,SamarAlhomoud11KingFaisalSpecialistHospital&ResearchCenter,Riyadh,SaudiArabia.2CollegeofMedicineTaibahUniversity,OhodHospitalMadinah,Madinah,SaudiArabia.3RiyadhCarehospital,Riyadh,SaudiArabia

P538 Curative-intentsurgeryforlocoregionalrecurrenceofcoloncancer:institutionalexperienceandreviewoftheliterature

DaanWisselink,LotjeKlaver,RoelHompes,WillemBemelman,PieterTanisAMC,Amsterdam,Netherlands

P539 Straighttotestnurseendoscopistledclinic–Anewmethodtoexpeditecolorectalcancerdiagnosis

PeshangAbdulhannan,HelenWood,PaulO'Loughlin,ElizabethGraham,MarkKatoryQueenElizabethHospital,Gateshead,UnitedKingdom

P541 Oncologicaloutcomebasedonthedurationofadjuvantchemotherapyincoloncancer:lessthan3monthsvs.morethan3months

RiNaYoo,HyungJinKim,Hyeon-minCho,SeungrimHanSt.VincentHospital,TheCatholicUniversityofKorea,Suwon,Korea,Republicof

P542 Factorsassociatedwithshort-termmorbidityinpatientsundergoingtotalmesorectalexcisionfollowingneoadjuvanttreatmentforrectalcancer:theIstanbulGroupexperience

TahirKorayYozgatlı1,FuatBarışBengür1,VolkanOzben2,OrhanAğcaoğlu3,ErenEsen1,CihadTatar4,OnurBayram3,SerapYücel1,BülentGürbüz3,ErmanAytaç1,BilgiBaca1,EmreBalık3,FulyaAğaoğlu1,DuyguSezen3,İsmailHamzaoğlu1,TayfunKarahasanoğlu1,DursunBuğra31AcıbademMehmetAliAydınlarUniversitySchoolofMedicine,İstanbul,Turkey.2AcıbademMehmetAliAydınlarUniversity,Istanbul,Turkey.3KoçUniversitySchoolofMedicine,İstanbul,Turkey.4İstanbulTrainingandResearchHospıtal,İstanbul,Turkey

P543 Adjuvantradiotherapyandlocalrecurrenceratesinintermediateriskrectalcancer

JonathanYuJinChua1,VinnaAn1,ThomasTiang2,MalcolmSteel1,RachelWong1,PeterGibbs3,JamieKeck11BoxHillHospital,Melbourne,Australia.2AustinHospital,Melbourne,Australia.3Walter&ElizaHallInstituteofMedicalResearch,Melbourne,Australia

P544 Comparativeassessmentof3Dendorectalultrasoundtohistopathologyinpatientsreferredfortransanalendoscopicmicrosurgery

AntoniZawadzki,MartinLindsten,UrsulaAhoFält,PatriciaMaldonado,KrystynaKorona,SilviaBaquedano,LouisBankaJohnson,MarianneStarckMalmöUniversityHospital-PelvicFloorCentre,SUS,Malmö,Sweden

P545 Areisolatedtransversecoloncancersdifferentfromrightorleft-sidedcoloncancers?

SerkanZenger1,BülentGürbüz1,EmreBalık2,TunçYaltı1,2,DursunBuğra1,21VKFAmericanHospital,DepartmentofGeneralSurgery,Istanbul,Turkey.2KocUniversitySchoolofMedicine,DepartmentofGeneralSurgery,Istanbul,Turkey

P546 Clinicalimplicationsofthepathologicsub-typesofright-sidedcoloncancers(RCC)

SerkanZenger1,BülentGürbüz1,ÇağrıBilgiç1,EmreBalık2,DursunBuğra1,21VKFAmericanHospital,DepartmentofGeneralSurgery,Istanbul,Turkey.2KocUniversitySchoolofMedicine,DepartmentofGeneralSurgery,Istanbul,Turkey

P547 Isapicallymphnode(ALN)metastasisinrightandleft-sidedcoloncancersdiffer?

SerkanZenger1,BülentGürbüz1,EmreBalık2,DursunBuğra1,21VKFAmericanHospital,DepartmentofGeneralSurgery,Istanbul,Turkey.2KocUniversitySchoolofMedicine,DepartmentofGeneralSurgery,Istanbul,Turkey

P548 LymphNodeYieldandPrognosticSignificanceforColorectalCancerPatientsUndergoingSurgicalResection.

YimengZhang,RabiyaAseem,GaryBonnici,OliviaJames,AndrewAlabi,JasonSmith,NikhilPawaWestMiddlesexHospital,London,UnitedKingdom

P549 TheSuperSetonforperianalfistulas:aknotlesssolution

MerelE.Stellingwerf1,MichielT.J.Bak2,CharlotteB.H.Molenaar2,JolinedeGroof1,ChristianneJ.Buskens1,WillemNerkens3,TimHoreman3,4,WillemA.Bemelman11AcademicMedicalCenter,Amsterdam,Netherlands.2ProctosKliniek,Bilthoven,Netherlands.3MediShieldB.V.,Delft,Netherlands.4DelftUniversityofTechnology,Delft,Netherlands

P550 TransanalOpenHemorrhoidopexy:Goodresultsafterafollowupof8years

FaramarzPakravan,ChristianHelmes,IngoAlldingerCenterofColoproctology,Düsseldorf,Germany

P551 Mostpatientswithhemorrhoidaldiseasedonotneedsurgery

FaramarzPakravan,ChristianHelmes,IngoAlldingerCenterofColoproctology,Düsseldorf,Germany

P552 Theusingofelectricweldingintheminimallyinvasivetreatmentofthepylonidaldisease

VolodymyrAndriiets1,VolodymyrSmovzhenko2,SergiiSymonenko2,IvanKhmeliar2,VadimIgnatyuk2,IvanUnguryan2,IgorLukyanchuk21O.O.BogomoletsNMU,Kyiv,Ukraine.2KyivclinicN15,Kyiv,Ukraine

P553 Usingacorrosivechemicalagentforclosuretheanalfistulawithoutsurgicalintervention

WafiAttaallah,TevfikKivilcimUprak,YalcinBurakKara,CumhurYegenMarmaraUniversitySchoolofMedicine,DepartmentofGeneralSurgery,Istanbul,TURKEY,Istanbul,Turkey

P554 Clinicaloutcomeofextraanalcanalapproachinsphincterpreservingtechniquesforanalfistulas

HiroshiAzuma,ShinShimoji,MunefumiAritaUtsunomiyacoloproctorogyclinic,Utsunomiya,Japan

P555 OutcomesfollowingTransanalHaemorrhoidalDearterialisation(THD)

MirzaBaig,RikeshPatel,AdeebRehman,ArifKhanLeightonHospital,Crewe,UnitedKingdom

P556 Fistulotomyandimmediaterepair:analternativetorectaladvancementflap?

EricLeBalc'h1,GrégoireBessi1,AlexandreMerlinil'Héritier1,JeanDelahaye1,TimothéeWallenhorst1,Guillaumebouguen1,2,3,CharlèneBrochard1,2,3,LaurentSiproudhis1,2,31DepartmentofGastroenterology,UniversityHospitalofRennes,Pontchaillou,Rennes,France.2INSERMU1241,UniversityofRennes1,Rennes,France.3INPHYCIC1414,UniversityHospitalofRennes,Rennes,France

P557 AdvancementflapprocedureinCrohnandnon-Crohnperinealfistulas:forasimplesurgicalapproach

GregoireBessi1,LaurentSiproudhis2,AlexandreMerlini-l'Héritier2,TimothéeWallenhorst2,EricLebalch2,GuillaumeBouguen2,CharleneBrochard211.DepartmentofGastroenterology,UniversityHospitalofRennes,Pontchaillou,,Rennes,France.2DepartmentofGastroenterology,UniversityHospitalofRennes,Pontchaillou,,Rennes,France

P558 Fissure-in-ano:acommunitydiagnosis?

DuncanRutherford1,MariaBoland1,GearoidCrosby1,TimothyBuick1,TracyBurton1,HannahFlemming1,MarionMacrury1,MaeveMacLeod2,DavidKearns2,HarryFisken2,ZacLewis-Morgan2,LouiseMatheson2,DougSpeake11NHSLothian,Edinburgh,UnitedKingdom.2TheUniversityofEdinburgh,Edinburgh,UnitedKingdom

P559 Magneticpelvicresonanceorecoendoscopicforthediagnosisofperianalfistula?

FernandoMendoza-Moreno1,2,AnaMaríaBravo-Minaya2,MaríadelRocíoDíez-Gago2,JavierMínguez-García1,DiegoTristánEnjuto-Martínez1,BenjamínTallón-Iglesias1,ManuelSolana-Maoño1,JesúsManuelArgüello-de-Andrés11HospitalUniversitarioSanitasLaMoraleja,Madrid,Spain.2HospitalUniversitarioPríncipedeAsturias,AlcaládeHenares,Spain

P560 Permacol™collagenpasteforperianalcryptoglandularandCrohn’sfistulae

MaximilianBrunner1,IgnazSchneider1,KlausGünther2,RobertGrützmann1,KlausMatzel11DepartmentofGeneralandVisceralSurgery,Friedrich-Alexander-University,Erlangen,Germany.2DepartmentofGeneralandVisceralSurgery,HospitalHallerwiese,Nürnberg,Germany

P561 PerianalPaget´sdisease:ararecauseofcommonsymptoms.Descriptionofacaseandliteraturereview.

MireiaMerichal-Resina,CarlosCerdán-Santacruz,JoséEnriqueSierra-Grañón,PabloMuriel-Álvarez,JordiTarragona-Foradada,JoanViñas-Sala,JorgeJuanOlsina-KisslerHospitalUniversitarioArnaudeVilanova,Lleida,Spain

P562 Newproceduretransanalsuturerectopexyforhaemorroids

ShantikumarChivate,LaxmikantLadukarJeevanJyothospital,Thane,India

P563 Flavonoidsmixture(diosmin,troxerutin,rutin,hesperidin,quercetin)inthetreatmentofI-IIIdegreehemorroidaldisease:adoubleblindmulticenterprospectivecomparativestudy

italocorsale1,PaoloCarrieri2,JacopoMartellucci3,AlessandroPiccolomini4,SoniaPanicucci1,MarcoRigutini11GeneralSurgeryUnit-SS.CosmaeDamianoHospital,Pescia,Italy.2GeneralSurgeryUnit-BorgoSanLorenzoHospital,BorgoSanLorenzo,Italy.3General,EmergencyandMini-invasiveSurgery-CareggiUniversityHospital,Firenze,Italy.4UnitofGeneralSurgery2,PoliclinicoLeScotte,Siena,Italy

P564 Initialresultsoftherandomized,double-blindclinicaltrialoflaserhemorrhoidoplastyversusrectoanalrepairversusopenhemorrhoidectomy

DonatasDanys1,2,GabijaMakunaite1,AntanasMainelis1,3,EligijusPoskus1,2,SauliusMikalauskas1,2,ValdemarasJotautas1,2,KestutisStrupas1,2,TomasPoskus1,21VilniusUniversityFacultyofMedicine,Vilnius,Lithuania.2CentreofAbdominalSurgery,ClinicofGastroenterology,NephrourologyandSurgery,InstituteofClinicalMedicineoftheFacultyofMedicineofVilniusUniversity,Vilnius,Lithuania.3VilniusUniversityFacultyofMathematicsandInformatics,Vilnius,Lithuania

P565 Minimallyinvasivetreatmentversustotalexcisionwithprimaryclosureforpilonidaldisease

DonatasDanys1,2,PetrasLaurinavičius1,PovilasMiknevicius1,TomasPoskus1,21VIlniusUniversity,Vilnius,Lithuania.2CentreofAbdominalSurgery,VilniusUniversityHospitalSantarosClinics,Vilnius,Lithuania

P566 Long-termevaluationoffecalincontinenceafterfistulotomyandsphincteroplastyincomlpexanalfistula

MARIADELMARAGUILARMARTINEZ1,LUISSANCHEZGUILLEN1,JOSEPXAVIERBARBERVALLES2,ALBAFERNANDEZCANDELA1,ALBERTOLOPEZDELGADO1,FRANCISCOLOPEZRODRIGUEZ-ARIAS1,ANTONIOARROYOSEBASTIAN1,FERNANDOCANDELAPOLO1,ANTONIOARROYOSEBASTIAN11GENERALUNIVERSITYHOSPITALOFELCHE,ELCHE,Spain.2CENTEROFOPERATIONRESEARCH-UNIVERSITASMIGUELHERNANDEZOFELCHE,ELCHE,Spain

P567 ReliabilityandefficacyofMilligan-Morgan’shemorrhoidectomyusingLigaSurePreciseinthesurgicaltreatmentofgradeIII-IVhemorrhoids:15yearsfollow-up

EdgarDelgadillo-Pfenninger1,PhilippeWuthrich1,PhilippeShoeni2,PascalGervaz31CliniqueVolta,LaChauxdeFonds,Switzerland.2CliniqueNeumed,LaChauxdeFonds,Switzerland.3CliniqueLaColline,Geneva,Switzerland

P568 Retrospectiveanalysisofbathinghabitsof67adolescentpilonidalsinusdiseasecases

MuratFerhatFerhatoglu1,UgurEkici2,AbdulcabbarKartal11OkanUniversity,FacultyofMedicine,Istanbul,Turkey.2EsencanHospital,Istanbul,Turkey

P569 Clinicalandfunctionalresultsafterrectalmucosaflapvsinternalsphincterotomyinthetreatmentofchronicanalfissure

alessandrogarcea1,lucaponchietti1,andrestomas1,pilarserrano21TorreviejaUniversityHospital,alicante,Spain.2VinalopoUniversityhospital,alicante,Spain

P570 Efficacyandsafetyoffibringlueversusplatelet-derivedgrowthfactorsfortreatmentofcriptoglandularanalfistula.ResultsofaphaseIIIrandomizedclinicaltrial

AnaMariaGarcia-Cabrera,VirginiaDuránMuñoz-Cruzado,M.VictoriaMaestreSánchez,MLuisaReyesDiaz,JorgeMVazquezMonchul,JoseMDíazPavón,AndreaJiménezSalido,JimenezRodriguezRosaM,IreneRamalloSolís,CarmenPalaciosSánchez,FJavierPadilloRuiz,FernandodalaPortilladeJuanVirgendelRocioHospital,Seville,Spain

P571 Fistulalaserclosure(FILACtm)forcomplexurethroperinealfistula.

BenGys1,2,NicolasDeHous1,GuyHubens1,NielsKomen11departmentofabdominalsurgery,Antwerpuniversityhospital,Edegem,Belgium.2departmentofabdominalsurgery,AZSintDimpna,Geel,Belgium

P572 Externalhaemorrhoidalthrombosis–thereisnoneedforsurgery

FaramarzPakravan,ChristianHelmes,IngoAlldingerCenterofColoproctology,Düsseldorf,Germany

P573 PitPickingisasafeandsuccessfultherapeuticoptioninnon-acutePilonidalSinusDisease

FaramarzPakravan,ChristianHelmes,IngoAlldingerCenterofColoproctology,Düsseldorf,Germany

P574 Comparisonofendoscopicpilonidalsinustreatmentversuspilonidalsinusflapsurgery:asingleinstitutionexperiencewithinanAsianpopulation

GregoryHeng,Shen-LeongOh,Hsien-LinSim,Kok-YangTan,SurendraMantooKhooTeckPuatHospital,Singapore,Singapore

P575 Newapproachestochoiceofsurgicaltreatmentofpatientswithcombineddiseasesofanorectalregion

AndriyHospodarskyy1,RomanDrevnitskyy21TernopilStateMedicalUniversitybyI.Horbachevskyy,Ternopil,Ukraine.2Ternopilmunicipalemergencycarehospital,Ternopil,Ukraine

P576 Electrotherapy:Anoveltreatmentfor4thdegreehaemorrhoids

ShellyGriffiths1,NathanHudson-Peacock2,LisaMackey2,MarkHudson-Peacock2,PaulMackey11MusgroveParkHospital,Taunton,UnitedKingdom.2eXroidTechnologyLtd,Canterbury,UnitedKingdom

P577 Placementofsetonbeforeligationofintersphinctericfistulatract(LIFT)significantlyimproveslong-termresultsinpatientswithhighanalfistula

IgorsIesalnieks1,SinaDeimel2,KasparsSnippe3,DmitrijDajchin41KlinikumBogenhausen,Munich,Germany.2MarienhospitalGelsenkirchen,Gelsenkirchen,Germany.3RAKUS,Riga,Latvia.4MartinusHospital,Düsseldorf,Germany

P578 LocalperianalinjectionofBupivacainewithandwithoutKetamineforpostoperativepainreductionafteranalsphincterotomyforanalfissure

AlirezaKazemeini,MojganRahimi,MohammadSadeghFazeli,AmirKeshvari,NasimPour-tabatabayi,MohammadRezaKeramatiTehranUniversityofMedicalSciences,Tehran,Iran,IslamicRepublicof

P579 Gluteusmaximusfasciaplasty(GMF)flapforpilonidalsinusisapromisingtechniquetoavoidrecurrence

YuriyKitsenko,InnaTulina,DariaShlyk,DanielMarkaryan,PetrTsarkovClinicofcolorectalandminimallyinvasivesurgerySechenovFirstMoscowStateMedicalUniversity,Moscow,RussianFederation

P580 Treatmentoflowperianalfistulaswithfistulotomy:long-termresults

MJoãoKoch,ManuelRosete,RodrigoNemésio,AntónioManso,J.CarlosCampos,JúlioS.LeiteDepartmentofSurgery,CoimbraHospitalandUniversitaryCentre,Coimbra,Portugal

P581 Endoscopicpilonidalsinustreatment–EPSiT:ourinitialexperience

MarkoZelić,DorianKršul,DamirKarlović,ĐordanoBačićUniversityhospitalRijeka,Rijeka,Croatia

P583 HorseshoefistulatreatedwithamodifiedHanleyprocedure:Aprospective,randomisedcontrolledtrial

SezaiLeventoğlu1,AlpYildiz2,SaygınAltıner1,HuseyinGobut2,BulentAytaç1,BulentMenteş31GaziUniversitySchoolofMedicine.GeneralSurgery,Ankara,Turkey.2YenimahalleResearchandTrainingHospital,Ankara,Turkey.3MemorialAnkaraHospital,Ankara,Turkey

P584 UsingandnotusingDopplerprobe:thisisthequestion.90patientsexperienceintransanalmanualhaemorrhoidopexy.

PierluigiLobascio,MarinaMinafra,RitaLaforgia,RosaPalermiti,SimonaPisicchio,CleliaPunzo,NicolaPalascianoUniversitàdegliStudidiBari,Bari,Italy

P585 ExperimentalStudyof1470-nmDiodeLaserHemorrhoidoplastyinPorcineModel

GabijaMakunaite1,DonatasDanys2,1,JuliusPacevicius1,RolandasPalubeckas1,AntanasMainelis1,2,3,NarimantasMarkevicius1,4,ArvydasRimkevicius2,KestutisStrupas1,2,TomasPoskus1,21VilniusUniversityFacultyofMedicine,Vilnius,Lithuania.2VilniusUniversityHospitalSantarosklinikos,Vilnius,Lithuania.3VilniusUniversityFacultyofMathematicsandInformatics,Vilnius,Lithuania.4VilniusCityClinicalHospital,Vilnius,Lithuania

P586 AnalmucosaresectionandVYflapreconstructionisafunctionallyandoncologicallyadequateproceduretotreatanalintraepithelialneoplasia(AIN)

ChristineMaurus1,StephanBaumeler2,IsabellaBrenner3,StephanBischofberger1,WalterBrunner1,SusanneBock1,JanBorovicka2,LukasMarti11Suergery,KantonsspitalSt.Gallen,St.Gallen,Switzerland.2Gastroenterology,KantonsspitalSt.Gallen,St.Gallen,Switzerland.3PelvicFloorCenter,KantonsspitalSt.Gallen,St.Gallen,Switzerland

P587 Surgicaltreatmentofthrombosedexternalhaemorrhoids(TEH)duringpregnancyandinchildbedissafeandeffective

YuliaMedkova1,DanielMarkaryan1,InnaTulina1,LeonidAleksandrov2,AnatoliyIschenko2,PetrTsarkov11ClinicofcolorectalandminimallyinvasivesurgerySechenovFirstMoscowStateMedicalUniversity,Moscow,RussianFederation.2Clinicofobstetricsandgynecologyn.a.V.F.SnegirevSechenovFirstMoscowStateMedicalUniversity,Moscow,RussianFederation

P588 Surgeryforthrombosedexternalhemorrhoidsgivesfasterpainreliefthanconservativetreatmentinpregnantwomenandpuerperas

YuliaMedkova1,DanielMarkaryan1,InnaTulina1,LeonidAleksandrov2,AnatoliyIschenko2,PetrTsarkov11ClinicofColorectalandMinimallyInvasiveSurgerySechenovFirstMoscowStateUniversity,Moscow,RussianFederation.2Clinicofobstetricsandgynecologyn.a.V.F.SnegirevSechenovFirstMoscowStateMedicalUniversity,Moscow,RussianFederation

P589 Pedicularhemorrhoidectomyforsymptomatichaemorrhoidaldisease.Resultsabout192patientsfromonetertiaryreferralcenter

DianeMege,VictorSerenon,AdeleGauthier,AurélieMaignan,ArnaudSans,JulieDuclos,RémyLeHuuNho,NicolasPirro,IgorSielezneffTimonehospital,Marseille,France

P590 Treatmentofanalfistulabyradiofrequency-thermo-coagulation(RFTC):awordofcaution

AlexandreMERLINI-L'HERITIER1,LaurentSiproudhis2,3,4,5,GrégoireBessi1,EricLeBalc’h1,JeanDelahaye6,TimothéeWallenhorst1,GuillaumeBouguen1,3,4,LaurentAbramowitz5,CharlèneBrochard1,3,41DepartmentofGastroenterology,UniversityHospital,RENNES,France.21.DepartmentofGastroenterology,UniversityHospital,RENNES,France.32.INSERMU1241,UniversityofRennes1,RENNES,France.43.INPHYCIC1414UniversityHospitalofRennes,RENNES,France.54.GREPGroupedeRechercheenProctologie,paris,France.6DepartmentofGastroenterologyuniversityhospital,angers,France

P591 ReliabilityofconventionalB-modeand3Dendorectalultrasoundinthedetectionofincompleteanalfistulae:acomparativestudy

YuriShelygin,LarisaOrlova,DmitriyKiselev,JuliaTrubachevaStateScientificCentreofColoproctology,Moscow,RussianFederation

P592 Cryptoglandulartranssphinctericperianalfistula:surgicaltreatmentandmiddle/long-termoutcomes

LuisEduardoPérez-Sánchez,MoisesHernández-Barroso,AnaSoto-Sánchez,GuillermoHernández-Hernández,NelidaDíaz-Jiménez,IreneVilela-Ferrer,AliciaGoya-Pacheco,JoséGregorioDíaz-Mejías,LuisaGambra-Michel,ManuelÁngelBarrera-GómezUniversityHospitalNuestraSeñoradeCandelaria,SantaCruzdeTenerife,Spain

P593 Sexualfunctioninpatientssufferingfromsacrococcygealpilonidalsinusdisease

AkkePronk1,LotteKastelijns1,NielsSmakman1,EdgarFurnee21Diakonessenhuis,Utrecht,Netherlands.2UniversityMedicalCentreGroningen,Groningen,Netherlands

P594 Repairofrectovaginalfistulaandstenosisofrectalanastomosisbyminimalinvasivetransanalaccess(GelPointPath)

ImmaPros,WenceslaoMartínez,MaríaSocías,CarlesRibera,JoanRobusté,JosepRiusHospitalSantJoandeDeudeMartorell,Martorell,Spain

P595 THDwithanalfissureexcision

VolodymyrPyrogovsky1,YaroslavFeleshtynskyi2,AndriyNoyes1,SergiiZlobenets1,AndriyTaranenko11KyivRegionalHospital,Kyiv,Ukraine.2Nationalmedicalacademyofpostgraduateeducation,Kyiv,Ukraine

P596 Pelvicfloordysfunctioninchronicanalfissure

D.Reijnvan1,P.Voorham-Zalmvander2,H.Putter3,R.Pelger2,I.J.M.Han-Geurts11ProctosKliniek,Bilthoven,Netherlands.2LeidsMedischUniversitairCentrum,DeptUrology,Leiden,Netherlands.3LeidsMedischUniversitairCentrum,DeptStatistics,Leiden,Netherlands

P597 “MinimalOpenhaemorrhoidectomy”–initialresults.

HavardDragesundRørvik1,AndreHeinerCampos2,KarlFredrikHerlakStyr2,GrantLMcKinstrey1,LarsIlum2,GunnarOlaison11DepartmentofSurgery,HolbækHospital,Holbæk,Denmark.2DepartmentofSurgery,HolbækHospital.,Holbæk,Denmark

P598 AnalFissures:TrendsandOutcomesfromTwoNationalDatabases

KathrynSchlosser,MichaelArnold,AngelaKao,TanushreePrasad,AmyLincourt,ToddHeniford,KevinKasten,BradleyDavisCarolinasMedicalCenter,Charlotte,USA

P599 PerianalFistulas:TrendsandOutcomesfromtheAmericanCollegeofSurgeonsNationalSurgicalQualityImprovementProgram(NSQIP)

KathrynSchlosser,JavierOtero,AngelaKao,TanushreePrasad,AmyLincourt,ToddHeniford,KevinKasten,BradleyDavisCarolinasMedicalCenter,Charlotte,USA

P600 Hemorrhoids:TrendsandOutcomesfromaNationalDatabase

KathrynSchlosser,MichaelArnold,AngelaKao,TanushreePrasad,AmyLincourt,ToddHeniford,KevinKasten,BradleyDavisCarolinasMedicalCenter,Charlotte,USA

P601 Efficacyofadditionalinjectionofautologousstromalvascularfractioncombinedwithplatelet-richplasmaintransanaladvancementflaprepairofhightranssphinctericfistulas

W.R.Schouten1,2,W.B.Deijl2,O.vanRuler2,J.vanderWoude3,H.P.J.D.Stevens4,E.J.R.deGraaf21DeptofSurgery,ErasmusMC,Rotterdam,Netherlands.2DeptofSurgery,IJssellandHospital,CapelleaandenIJssel,Netherlands.3Deptofgastroenterology,ErasmusMC,Rotterdam,Netherlands.4Deptofplasticsurgery,Bergmanclinic,TheHague,Netherlands

P602 AnorectaldisordersinpatientswithchronichemorrhoidsofIII-IVdegree

SerhiiSidoruk1,SergiyVasylyuk21KhmelnitskyRegionalClinicalHospital,Khmelnitsky,Ukraine.2Ivano-FrankivskCityClinicalHospital,Ivano-Frankivsk,Ukraine

P603 LigationoftheintersphinctericfistulatractversusendorectaladvancementflapforhighperianalfistulasinCrohn’sdisease:aretrospectivecohortstudy

ElisevanPraag1,MerelStellingwerf1,WilhelmusBemelman1,JarmillavanderBilt2,KrisztinaGecse1,ChristianneBuskens11AcademicMedicalCentre,Amsterdam,Netherlands.2Flevoziekenhuis,Almere,Netherlands

P604 Pilonidaldisease-individualizationandpathogenesis-orientedsurgery

VladislavStoyanov1,DragomirDardanov2,31MedicalInstitute-MinistryofInterior,Sofia,Bulgaria.2UniversityHospitalAlexandrovska,Sofia,Bulgaria.3MedicalUniversity-Sofia,Sofia,Bulgaria

P605 Safetyandefficacyofautologousfatandadipose-derivedstromalvascularfractioninjectionfortreatmentofradiation-inducedrectovaginalfistula

ZhannaTeryushkova1,ViacheslavVasilyev2,AndreyVazhenin3,SergeyVasilyev2,AnnaSemenova3,GeorgiyDimov2,EvgeniyLomakin21Cityhospital#8,Chelyabinsk,RussianFederation.2SouthUralStateMedicalUniversity,Chelyabinsk,RussianFederation.3OncologyandNuclearMedicineCenter,Chelyabinsk,RussianFederation

P606 Parametersofanorectalmanometryafterfistulectomywithprimarysphincteroplasty.

IvanKostarev,AlexanderTitov,OksanaFomenko,AndreyMudrovStateScientificcentreofColoproctology,Moscow,RussianFederation

P607 Thepreliminaryresultsof«Invaginative»methodforrectovaginalfistulae

AleksandrTitov,AndreyMudrov,YuliaSokolova,LeonidBlagodarny,IvanKostarev,MariamOmarovaStateScientificCentreofColoproctology,Moscow,RussianFederation

P608 Embolizationofthesuperiorrectalarteriesforhemorrhoidaldisease:midtermresultsin25patients

FaroukTradi,DianeMege,GuillaumeLouis,RochGiorgi,Jean-MichelBartoli,IgorSielezneff,VincentVidalTimonehospital,Marseille,France

P609 EuropeanSocietyofColoproctology(ESCP)CoreOutcomeSet(COS)forhaemorrhoidaldisease(HD):aninternationalDelphistudy

RobinvanTol,MerelKimman,JarnoMelenhorst,LaurentsStassen,CarmenDirksen,StéphanieBreukinkMaastrichtUniversityMedicalCentre,Maastricht,Netherlands

P610 AtypicalperianaldiseaseinHIV-positivepatients,acasereport.

IreneFerrerVilela,AnaSotoSánchez,MoisésHernándezBarroso,GuillermoHernándezHernández,NélidaDíazJimenez,JoseGregorioDíazMejías,LuisaElenaGambraMichel,AliciaGoya,LuisEduardoPérezSánchez,ManuelBarreraGómezHospitalUniversitarioNuestraSeñoradelaCanderlaria,SantaCruzdeTenerife,Spain

P611 MagneticResonanceImagingandGoodsall`sruleforfistulainano

RajeshChidambaranath,IbrahimAli,SiuMZhen,IoannisVirlos,PradeepThomasBURTONHOSPITALSNHSFOUNDATIONTRUST,BURTON-ON-TRENT,UnitedKingdom

P612 MicronutritiondeficitsafterpitpickingwithadjunctlasertherapyinPilonidalCyst:apossiblecauseoffailure

ArneWilhelm,ChristophKrause,NataschaWilhelmCenterofColorectalandPelvicFloorDiseases,Cologne,Germany