gynecologic considerations for the general surgeon · 2019. 3. 29. · general surgeon robert l...
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Gynecologic Considerations for the General Surgeon
Robert L Giuntoli, II, MDDivision of Gynecologic Surgery
Penn Medicine
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• Review female pelvic anatomy• Hysterectomy and salpingo oophorectomy: The Basics• Management of incidental adnexal masses
Objectives
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Anatomy: Female Pelvis
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• Pelvic bones:– Hip bones (ilium, ischium, pubis) sacrum, coccyx
• Organs– Bladder, rectum, uterus, tubes, ovaries, ureters,
cecum, appendix
• Blood vessels– Common Iliac, internal iliac, external Iliac, gonadal
• Avascular planes– Retropubic, vesicovaginal, rectovaginal, presacral,
paravesical x2, pararectal x2
Anatomy: Female Pelvis
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Female Pelvic Anatomy: Pelvic Bones
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Female Pelvic Anatomy: Overview
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Female Pelvic Anatomy: Peritoneum and Vessels
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Female Pelvic Anatomy: Uterus, Tubes and Ovaries
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Female Pelvic Anatomy: Pelvic Vessels
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Female Pelvic Anatomy: Internal Iliac Artery
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Female Pelvic Anatomy: Gonadal Vessels
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Female Pelvic Anatomy: Avascular Planes
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Hysterectomy and Salpingectomy
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• Class I (Extrafascial Hyst):– Complete removal of the cervix. – Uterine vessels ligated at internal os.
• Class II (Modified Radical Hyst): – Partial mobilization of the ureters (paracervical). – Uterine vessels ligated medial to ureters.– Uterosacral ligaments ligated midway between uterus
and sacrum.– Medial half of cardinal ligament excised.– Upper 1/3 of vagina excised.
1 Piver et al. Obstet Gynecol 1974;44:265.
Five Classes of Hysterectomy 1
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• Class III (Radical Hyst):– Almost complete mobilization of the ureters (paracervical
and pubovesicle). – Uterine vessels ligated at origin from interal iliac a.– Uterosacral ligaments ligated at sacral attachment.– Cardinal ligament excised at pelvic wall.– Upper 1/2 of vagina excised.
– Class IV:– Complete mobilization of the ureter.– Superior vesicle artery is sacrificed– Upper 3/4 of vagina excised.
1 Piver et al. Obstet Gynecol 1974;44:265.
Five Classes of Hysterectomy 1
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• Class V:– Involved portion of distal ureter and/or bladder exicised.– Reimplantation of ureter may be performed.
1 Piver et al. Obstet Gynecol 1974;44:265.
Five Classes of Hysterectomy 1
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Class IClass IIClass III
Classes of Hysterectomy 1
1 Piver et al. Obstet Gynecol 1974;44:265.
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Retroperitoneal Structures
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Bilateral Salpingo oophorectomy
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Film
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Current Statistics
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2019, Ten Leading New Cancer Cases (Estimated) in U.S. Females
- Siegel et al, CA Cancer J Clin 2019; 69(1):7-34.
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2019, Ten Leading Causes of Cancer Deaths (Estimated) in U.S. Females
- Siegel et al, CA Cancer J Clin 2019; 69(1):7-34.
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Ovarian CancerUSA Statistics – 2019
• 22,530 new cases annually• 13,980 deaths annually• Ranks 5th – CA related deaths in women• 1/70 lifetime risk (1.4%)
- Siegel et al, CA Cancer J Clin 2019; 69(1):7-34.
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Ovarian Structure
Germ Cells
StromaEpithelium
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• Epithelial: – Traditionally felt to develop from ovarian surface epithelium– Probably develop from tubal epithelium– 80 - 90% of ovarian cancers– Most common after age 35– Incude serous, mucinous, endometrioid, clear cell histology
• Germ cell tumors: – Develop from germ cells– 5 - 10% of ovarian cancers– Almost always seen before age 35– Include dysgerminoma, immature teratoma, yolk sac tumor
• Sex cord stromal tumors: – Develop from supporting tissue of ovary & sex cords– 5 - 10% of ovarian cancers– Evenly distributed throughout all ages– Include Granulosa cell tumor, Serotoli-Leydig tumors
Classification of Ovarian Neoplasms
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Epithelial Germ Cell Sex Cord Stromal
Occurrence (%) 80-90 5-10 5-10Age (yrs) Range 30-79+ <35 50-79+
Peak Incidence 65 20 60Stage Distribution
I & II 30 70 80+III & IV 70 30 < 20
Survival %Stages I & II 75-95 95+ 75-90Stages III & IV 15-20 80+ 75-90
Ovarian MalignancyHistologic Type
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• Examination under anesthesia• Approach
– Midline incision (supra-umbilical)– Laparoscopy
• Cytologic washings• Intra-abdominal exploration• TAH / BSO (USO if fertility desired)• Omentectomy• Appendectomy• Pelvic / Aortic lymph node sampling• Biopsy
– suspicious findings– normal appearing high-risk sites
Comprehensive Surgical Staging
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Comprehensive Surgical Staging
• Staging only required for cancer cases• Most important step is documenting pathology• Many ovarian masses are benign• Consider cystectomy in premenopausal woman
– However risks rupture
• In premenopausal women especially in laparoscopic cases, it is better to be conservative a risk a second surgery than to remove a normal ovary
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Ovarian Carcinoma: FIGO Staging
Stage I IA: one ovaryIB: both ovariesIC: IA or IB + ‘C’ criteria
Stage II IIA: uterus, fallopian tubeIIB: other pelvic structures
Stage III IIIA1: Pos retroperitoneal nodes; (i) ≤10mm, (ii)>10mmIIIA2: microscopic abdominal seedingIIIB: abdominal implants ≤ 2cmIIIC: abdominal implants > 2cm
Stage IV IVA: Pleural effusion with positive cytologyIVB: Extension beyond abdominal cavity including:
parenchymal liver and splenic metastases. Extra abdominal disease including inguinal nodes
‘C’ criteria(+) ascites/cytology
Surface tumorTumor rupture
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Ovarian Carcinoma: Stage I Disease
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Ovarian Carcinoma: Stage III Disease
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• Compiled series of 294 patients undergoingre-staging laparotomy
• Occult metastasesare common
• 30% upstaged• 75% will be Stage III• Staging information
is critical for effectivetreatment planning
Site Biopsy (+)Cytology 19%Para-aortic nodes 12%Peritoneal biopsy 10%Pelvic nodes 9%Diaphragm 8%Omentum 7%
Rubin SC, Sutton GP. Ovarian Cancer 1993
Apparent Early-Stage Disease
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Ovarian Cancer – Epithelial
• Conservative management of early stage invasive epithelial ovarian cancer
• 52 pts stage I EOC s/p USO staging with chemo as necessary
• Median follow up 68 months• 5 recurrences, 2 deaths• 71% of those attempting pregnancy succeeded
1 Shilder JM et al. Gynecol Oncol 2002;87:1.
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Ovarian Cancer – Epithelial
• Borderline tumors treated conservatively if uterus and other ovary uninvolved 1,2
• Increases rate of recurrence• No change in overall survival
1 Morris RT et al. Obstet Gynecol 2000;95:541.2 Morice P et al. Fertil Steril 2001;75:92.
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Ovarian Cancer – Germ Cell
• Germ Cell Tumors involving a single ovary can be treated with USO rather than TAH/BSO– Assumes no gross involvement
• 10-15% of dysgerminomas are bilateral • Stage IA dysgerminomas and Stage IA grade 1
immature teratomas - treated conservatively• All others require BEP
– 73 pts. 61% amenorrhea. 91% regained function 1
1 Low JJ et al. Cancer 2000;89:391.
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Clinical Follow-Up
Stage IA, IB (grade 1 or 2)
Comprehensive Surgical Staging+ TAH/BSO (USO if fertility desired)
Frozen Section Diagnosis = Carcinoma
Early Stage Epithelial Ovarian Carcinoma
Stage IA, IB (grade 3)Stages IC, II (all grades)
ChemotherapyX 6 cycles
Treatment Plan
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Epithelial Ovarian CancerScreening
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Ovarian Cancer Screening Considerations
• Symptom Assessment, Physical Exam
• CA125
• Transvaginal Ultrasound
• Multimodal: CA125 and Ultrasound
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Symptom Assessment• Prospective Case Control Study, 1709 Pts
• 128 pts with pelvic mass: 84 benign, 44 cancer
• 1. Symptoms (44% of cases)• Bloating• Increasing abdominal size• Urinary frequency
• 2. Symptom Characteristics• Severe• Frequent• Recent onset
Goff et al., JAMA, 2004, 291 (22):2705-2712
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• Ovarian Cancer - Approximately 80%
• Other Cancers– pancreatic, breast, bladder, liver, lung, non-hodgkins
lymphoma
• Benign Disease– ovarian cysts, endometriosis, leiomyoma, tubo-ovarian
abscess, diverticulitits, tuberculosis, renal disease, cardiac disease, cirrhosis
• Physiologic Conditions– pregnancy, menstruation
Elevated CA125
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Stage I 254 41%
Stage II 90 85%
Stage III 529 93%
Stage IV 169 97%
All 1042 80%
Kenemans et al, Eur J Obstet Gynec Reprod Bio,1993,49;115-24
Stage # of Pts ↑ CA125
Elevated CA125
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Ultrasound
Simple Cyst Complex Cyst
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• 78,216 patients enrolled (age 55-74)• Randomized to annual screening CA 15 (6yrs) and
transvaginal ultrasound (4yrs) vs. usual care• Ovarian cancer diagnosed in 212 (5.7/10k person-
yrs) in annual screening group vs. 176 (4.7/10k person-yrs) in usual care. NS
• Ovarian cancer deaths: 118 (3.1/10k person-yrs) in annual screening group vs. 100 (2.6/10k person-yrs) in usual care. NS
• 3285 False positives, 1080 surgeries performed in this group with a 15% serious complication rate.
Prostate, Lung, Colorectal, and Ovarian Cancer Screening (PLCO)
- Buys et al., JAMA, 2011, 305 (22):2295-2303.
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• 202,638 women enrolled (age 50-74)• Randomized: annual multimodal screening with
CA125 interpretation with ROCA (MMS), annual transvaginal U/S screening (USS) or no screening
• The primary analysis gave a mortality reduction over years 0–14 of 15% (p=0·10) with MMS and 11% (p=0·21) with USS.
• Greater mortality reduction was noted in years 7-14• Screening not recommended based on these results
UK Collaborative Trial of Ovarian Cancer Screening (UKCTOCS)
- Jacobs et al., Lancet 2016; 387: 945–56
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• Numerous companies have marketed tests that claim to screen for and detect ovarian cancer.
• Despite extensive research, currently no screening tests that are sensitive enough to reliably screen for ovarian ca w/o a high number of inaccurate results.
• Concerns about delaying effective preventive treatments for women w/o symptoms, but remain at increased risk for developing ovarian cancer.
• FDA recommends against using currently offered tests to screen for ovarian cancer
The FDA recommends against using screening tests for ovarian cancer screening
- FDA Safety Communication, September 7, 2016
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Conclusions
• Pelvic anatomy is reasonably straightforward. However understanding the anatomy is crucial in avoiding complications.
• Simple hysterectomy most frequent. However radical hysterectomy utilized for cervical cancer and to avoid injury in complex cases.
• Conservative management of ovarian masses prudent in young women.
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