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SURGICAL APPROACH TO GYNAECOLOGICAL CANCERS

SURGICAL APPROACH TO GYNAECOLOGICAL CANCERS. Prof Greta Dreyer Head: Gynaecological Oncology University of Pretoria South Africa. OUTLINE. Cervical cancer Endometrial cancer Ovarian cancer. Cervical cancer. Surgery for : DISEASE CONFINED TO CERVIX FREELY MOBILE TUMOUR Not for :

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SURGICAL APPROACH TO GYNAECOLOGICAL CANCERS

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  1. SURGICAL APPROACH TO GYNAECOLOGICAL CANCERS Prof Greta Dreyer Head: Gynaecological Oncology University of Pretoria South Africa

  2. OUTLINE Cervical cancer Endometrial cancer Ovarian cancer

  3. Cervical cancer Surgery for: DISEASE CONFINED TO CERVIX FREELY MOBILE TUMOUR Not for: The very old The medically - or immunocompromised Etc…

  4. Cervical cancer Mainstay: Radical abdominal hysterectomy with pelvic node clearance without removal of gonads (RH/ND) But: Surgery tailored to the tumour size Alternatives available

  5. Long term results of RH/ND • Excellent survival and tumour control • Morbidity and survival increased by post-op adjuvant (chemo)radiation • Bladder nerve injury with • Inability to empty • Detrussor instability • Some vaginal disfunction • Classical radiation complications

  6. Alternatives to RH/ND • Radical trachelectomy with (laparoscopic) pelvic nodes without removal of uterus • Modified radical hysterectomy with (limited) pelvic nodes • Neo-adjuvant chemotherapy followed by definitive surgery • Consider oophorectomy for (large) adenocarcinomas

  7. Cervical cancer “SINS”: • Inappropriate non-radical hysterectomy • Hysterectomy without pap-test • Hysterectomy without specific diagnosis of abnormal pap test • Continuing to remove cervical tumour incompletely when stumbled upon • LLETZ as biopsy of visible tumour

  8. Endometrial cancer “Generalist’s cancer” AND Overall outcome excellent BUT Outcome per stage worse than cervical cancer Majority of patients are staged incompletely

  9. Endometrial cancer Radiation used to salvage incomplete surgery Appropriate post-operative radiation improves local control Radiation NOT shown to improve survival

  10. Endometrial cancer Surgery for: Everyone… Two approaches – early and late stage Not for: Parametrial (paracervical) disease Metastatic disease (outside abdomen)

  11. “Early stage” endometrial cancer Definition: Tumour confined to pelvic area Determine risk for nodal metastases: Tumour grade (grade 2+) Tumour size (2 cm+) Cervical / adnexal involvement (stage 2+) Myometrial involvement (any) High age (65?)

  12. Surgical approach to “early stage” endometrial cancer Low risk: TAH + BSO Washings ?node sampling Higher risk: Above PLUS formal pelvic node dissection Consider upper abdominal staging (clear cell and papillary serous) Consider radical hysterectomy (cervix)

  13. “Late stage” endometrial cancer Definition: Tumour (probably) not confined to pelvic area / uterus and adnexae AIMS: Tumour debulking as for ovarian cancer Maximum information for logical adjuvant treatment

  14. Surgical approach to “late stage” endometrial cancer Pelvic clearance: ~always possible NOT if advanced parametrial disease Includes removal of pelvic nodes – normal and involved Upper abdominal staging / debulking: Omentum Visible disease Para-aortic nodes

  15. Results of appropriate surgery for endometrial cancer Early stage • Better stratification for adjuvant treatment • Less referral for radiation • Acceptable surgical morbidity Late stage • More aggressive treatment of late stage • Improved outcome of late stage

  16. Ovarian cancer Pitfalls Pre-operative evaluation Surgical approach Surgery for recurrent cancer

  17. Pitfalls in ovarian cancer • Unsuspected and undiagnosed cancer • Unsuspected extent of disease leading to incomplete surgery • Inappropriate surgical team • POOR PREPARATION

  18. Pre-operative evaluation RMI Medical status Extent of disease • Clinical evaluation • Radiology • Tumour markers

  19. RISK FOR MALIGNANCY INDEXRMI • Ca 125 value x • Ultrasound score (0-5) x • Menopausal status (1 or 3)

  20. Complete surgery for ovarian cancer Early stage ovarian cancer STAGING Late stage ovarian cancer DEBULKING

  21. Surgery for early stage ovarian cancer • Appropriate incision • Washings • Remove adnex and tumour bed completely, can retain fertility • Peritoneal staging • Omentum • Pelvic nodes

  22. Intra-operative accurate staging of ovarian cancer • USO=minimum tumour surgery • Omentectomy=mandatory & easy • Peritoneal biopsies=super easy • Draining l/n=pelvic & para-aortic • Upper abdomen exploration = inspection and multiple biopsies

  23. Upstaging of apparent early ovarian cancer • USO • Omentectomy 20% • Multiple pelvic peritoneal biopsies 5-10% • Draining lymph nodes 20% • Upper abdomen 10-15%

  24. Surgery for late stage ovarian cancer • WHO should operate?? • Midline incision (scopic) • Ascites and assess operability • Pelvic clearance (retroperitoneal)

  25. Who should operate late stage ovarian cancer Worst survival = general surgeon Second = generalist gynaecologist Best outcome = gynaecological oncologist Numbers increase survival(>10)

  26. Surgery for late stage ovarian cancer • Total omentectomy • Appendectomy • Peritoneal stripping • Consider limited bowel resection/anastomosis • Consider splenectomy

  27. Reasons given for suboptimal debulking • 15 % patient factors • Unstable, age, medical disease • 2% pelvic tumour not resectable • 80% upper abdominal disease not resectable

  28. Extent of surgery for disseminated ovarian cancer • High M&M surgery • Prognosis poor if sub-optimal chemo-response There is some logic in neo-adjuvant or induction chemotherapy

  29. Conclusion • Pre-operative evaluation extremely important for all diseases • Radiology • Laboratory • Clinical • WHO should be operated • WHO should operate • HOW to operate • WHEN to operate

  30. Conclusion • Increasing emphasis on stratification and expert surgery • Total radical removal of disease • Collecting complete staging information on histology • Adapting surgical aggressiveness to tumour and patient • Induction chemotherapy to selected patients

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