diagnostic methods of gastroenterology · lactose tolerant lactose intolerant h2 (ppm ) lactose...
TRANSCRIPT
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Diagnostic methods of gastroenterology
Dr. Noémi Csoszánszki
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Physical investigation Laboratory blood-,urine- ,stool tests Microbiological tests Ultrasound X –ray, isotope technic Endoscopic investigations 24 hour oesophagus pH metry Disacharide provocation - H2 exhalation test
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- safe - sensitiv - specific - cheap
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- sensitiv - specific - safe - cheap - painless
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”a good anamnesis is half a diagnosis”
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about the complain….
• How long ? • How often ? • Exactly how? • Does it show correlation with meals? /how?? • -”- foods? • Is there any concomittant complain? • Does it occur in the region? • -”- in the family? • …..
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Localized pain
Awakening pain
Fever
Bleeding manifest/occult
Dysphagia
Vomiting
Diarrhoea during the night
Perirectal disturbances
Unintended loosing weight
Delayed growing /Delayed sexual maturity
IBD/coeliac disease/ peptic ulcer/ GI polyps in the family
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supposition
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Lactase
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Lactase
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H2 exhalation test
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lactose tolerant
lactose intolerant
H2 (ppm )
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Lactose intolerance
• (Congenital L.I. ( alactasia ) )
• Primaer adult type L.I. ( in Hungary about 36% )
• Secundaer L.I. ( caused by a damage of the mucosa … )
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Lactase persistance - cultural/hystorical investigation
• North Europen ( swede, danish ) • Northwest Indian 85%
• Caucasians 70-80%
• Mediterrans 50 %
• Afroamericans 25%
• Asian 10%
Human Genetics© Springer-Verlag 200810.1007/s00439-008-0593-6Review Articlel
Lactose digestion and the evolutionary genetics of lactase persistence
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Therapy for Lactose intolerance
• decreased intake of lactose
and/or
• Enzime susbstitution
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H2 exhalation test
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80
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0 perc 15 perc 30 perc 60 perc 90 perc 120 perc
150 perc
…
lactose intolerant
H2 (ppm )
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”Tej érzékenység” milk sensitivity
???
• Lactose intolerance / enzim disturbance
• Cow’s milk allergy / allergy- immunological hypersensitivity
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• Food allergy - in about 3-5% of the children
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watersoluable glycoproteins 10-70kDa
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Diagnostical tests for food allergy
Elimination/Provocation test GOLD STANDARD
OFC
/ Oral Food Challenge
DBPCFC
/ double-bind-placebo-controlled-food-chalenge – more than 3 years old patient
--Prick test ( IgE mediated )
PPV( positive predictive value) <50%
NPV( negative predictive value) 95%<
--specifik IgE detection
PPV( positive predictive value) <50%
NPV( negative predictive value) 95%<
--Patch test ( cell mediated allergy )
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Diagnostical tests for food allergy
Elimination/Provocation test GOLD STANDARD
OFC / Oral Food Challenge DBPCFC / Double-Blind-Placebo-Controlled-Food-Chalenge –more than 3 years old patients
--Prick test ( IgE mediated ) PPV( positive predictive value) <50% NPV( negative predictive value) 95%<
--specific IgE detection PPV( positive predictive value) <50% NPV( negative predictive value) 95%< --Patch test ( cell mediated allergy )
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Therapy for cows milk allergy
antigen elimination
substitution
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Glutensensitive enteropathy / Coeliac disease -- CD
manifest
Arateus
silent latent
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Glutensensitive enteropathy / Coeliac disease -- CD
manifest
Arateus
silent latent
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CD specific antibodies
• ARA ( 1971 )
• AJA • AGA (2 éves kor alatt) / egészségesek 5-20%-ban pozitív/
• EMA immunfl. sens.75-80% spec.95-100%
• tTG (1997) ELISA sens.85-95% spec.95- 98%
• Rapid tTG sens.80-95% spec.95- 100% • Deamidált gliadin peptid antibody
- !! IgA deficiency 1:400/ 1:50 - ! CD patients - 6-10% seronegativity
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Glutensensitive enteropathy / Coeliac disease -- CD
manifest
Arateus
silent latent
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Diagnosis of CD
• 3x small bowel biopsy – histology ( 0 point/ on diet/ after provocation )
• Specific antibody positivity and • 1x small bowel biopsy
/ESPGHAN 2012 • Clinical signs • 2 x highly elevated serological positivity ( 10x ) • HLA DQ2/DQ8 positivity
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Therapy for coeliac disease
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• Additives !
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Coeliac disease
• Multifactorial etiology
- genetics - immunology
- enviromental effects
In the first degree of relatives ~ 10x
Heterozygote twins 30%
Monozygote twins 75%
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Common concomittant diseases in CD
• IgA deficiency
• Type I. diabetes mellitus • Autoimmun thyreoiditis • rheumatoid arthritis • alopecia areata • psoriasis • epilepsy • ataxia • hepatopathy • cardiomyopathy • Sjögren syndrom • Down syndrom, Turner syndrom, Williams syndrom
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Endoscopy
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Endoscopy
Real time technic
Invasive - general anaesthesy
Diagnostical method
- to detect visuable disturbances - to get biopsy for histological investigation
Therapeutical method - polypectomy - varix ligation / sclerotherapy - foregin bodies removement
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Endoscopy
Upper tract Oesophago Gastro Duodenoscopy Lower tract Colonoscopy – with terminal ileum intubation
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Endoscopy
Upper tract Oesophago Gastro Duodenoscopy Lower tract Colonoscopy – with terminal ileum intubation
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Endoscopy
Upper tract Oesophago Gastro Duodenoscopy Lower tract Colonoscopy – with terminal ileum intubation
Double Baloon Endoscopy / DBE
Push-and-pull enteroscopy
2001- Hironori Yamamoto
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Budapest Ybl Palota 2013.05.16. - 1. Gyermek IBD nap
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Crohn ulcer - Bauhin valve
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Budapest Ybl Palota 2013.05.16. - 1. Gyermek IBD nap
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Barry Marshall és Robin Warren
2005 Medical- physiological Nobel prize
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Helicobacter pylori
Diagnosis
• Endoscopy
-macroscopically – LNH
-RUT / rapid urease test
• Histology
-PCR
• C13/C14 UBT • szerológia
• stool Helicobacter pylori Ag detection
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Warthin –Starry painting
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Helicobacter pylori
Diagnosis
• Endoscopy
-macroscopically – LNH
-RUT / rapid urease test
• Histology
-PCR
• C13/C14 UBT • szerológia
• stool Helicobacter pylori Ag detection
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C13 UBT
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C13 UBT
• Specificity : 95 %
• Sensitivity : 95 %
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Helicobacter pylori
Diagnosis
• Endoscopy
-macroscopically – LNH
-RUT / rapid urease test
• Histology
-PCR
• C13/C14 UBT • szerológia
• stool Helicobacter pylori Ag detection
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ELISA based stool H.p. Ag detecting method
• Specificity : 96 %
• Sensitivity : 95-96%
Immuncromatographic stool H.p. Ag detecting method
• Specificity : 79 %
• Senzitivity : 92%
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IBD in childhood
• The disease incidency among patients with 10-19 years
UC – 2-3/100 000
CD – 3-4/100 000
HUPIR/ Hungarian Pediatric IBD Register/ 2007 january-2011
UC – 2,2/100 000 --- 2,4
CD – 3,8/100 000 --- 4,9
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The first problem starts under 20 years ulcerative colitis - in 20%
Crohn disease - in 25-30%
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diagnosis
• Ileocolonoscopy + EGD/histological examination
• / UH, MR, CT, Rtg, Fvs scintigraphia
• Laboratory tests
• Stool tests
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Stool calprotectin determination
• a rapid, non invasive test
• S-100-protein determination
• It’s produced in the white blood cells of the intestinal mucosae
• 7day stable
• Its well correlating with the histological inflammatory activity
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Stool calprotectin determination
• Positive predictive value: 79 %
• Negative predictive value: 94 %
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