Management of Carcinoma
Ovary
Topics
• RRSO
• SURGICAL STAGING
• MANAGEMENT OF EARLY STAGE OVARIAN
CANCER
• CYTOREDUCTIVE SURGERY IN ADVANCED
STAGE OVARIAN CANCER
• INTERVAL DEBULKING IN ADVANCED STAGE
OVARIAN CANCER
Operative
RRSO Definitive
BRCA
HNPCC
Diagnosed/ Suspected
malignancy
Staging
Laparotomy
Cytoreductive
Surgery
RRSO
• The NCCN, ACOG and SGO have recommended that
prophylactic oophorectomy be considered in women
with ovarian cancer syndromes at age 40 in BRCA
and 35 in HNPCC years or after childbearing is
completed
• Reduces the risk of BRCA-related gynaecologic
cancer by 96%
• Reduced the risk of developing subsequent breast
cancer by 50–80%Berek & Hacker’sGynecologic Oncology
Sixth Edition
Protocol
• Perform Operative Laparoscopy
• Survey upper abdomen, bowel surfaces,
omentum, appendix and pelvic organs
• Biopsy any abnormal peritoneal findings
• Total BSO
• Both ovaries and tubes to be placed in
Endobag for retrieval from pelvis .
• HNPCC : TAH HAS TO BE DONE
NCCN
Surgical Staging
Techniques
Open MIS
Laparoscopic Robotic
Open Laparotomy
• Preoperative evaluation suggestive of
malignancy
• Pre op FNAC : no role
• Midline or paramedian incision
Protocol
• Aspiration of ascites/ peritoneal lavage
• Visualization of peritoneal surfaces
• Systematic exploration of all the intra-abdominal
surfaces and viscera : Direct visual inspection is
important
• Excision/ biopsy of suspicious deposits on
peritoneum or adhesions
NCCN
• Random peritoneal biopsies from pelvis (if no
suspicious areas), paracolic gutters,
undersurfaces of diaphragm, urinary bladder
and POD
• BSO + Hysterectomy : Intact encapsulated
mass
• Infracolic omentectomy
• B/L Pelvic LN dissection
• Para aortic LN dissection : B/L to the level of
Inferior Mesenteric Artery
NCCN
Role of Sentinel Node?
• Still experimental
• 10-15% metastasize to paraaortic lymph nodes
• Advantage : Less surgical morbidity, Less
pedal lymphedema and complications, lesser
chances of Nerve injury and vessel injury
• Not done : More than 1 drainage sites
Fertility sparing surgery
• Apparent early stage disease
• Good risk tumors
o Unilateral stage I tumors (Ia and Ic)
o Low risk tumors (Grade I, II)
o LMP lesions
NCCN
Laparoscopy vs Laparotomy
• Patient comorbidities
• Number of previous abdominal surgeries
• Skills of the surgeon
• Both allow for comprehensive surgical staging.
• Lymph node counts and the size of the omental
specimen obtained are similar for both procedures.
• Port site metastasis : Risk is small (1-3%) and such
metastases are often a sign of disseminated intra-
abdominal disease
• Principles of Oncology need to be followed
NCCN
Early Stage Ovarian Cancer
• Stage I epithelial ovarian
oLow risk : TAH + BSO + Surgical Staging
oHigh risk : Requires adjuvant treatment
Low risk High risk
Low Grade High grade
Intact Capsule Tumor growth through capsule
No surface excrescences Surface excrescences
No ascites Ascites
Negative peritoneal cytologic findings Malignant cells in fluid
Unruptured Preoperative rupture
No dense adhesions Dense adherence
Berek & Hacker’sGynecologic Oncology Sixth Edition
Adjuvant Treatment of patients with
early stage High Risk Ovarian Cancer
• Chemotherapy
• Radiation Therapy
CHEMOTHERAPY
International Collaborative Ovarian Neoplasm trial 1 and
Adjuvant ChemoTherapy In Ovarian Neoplasm trial
• Preplanned combined analysis in early-stage ovarian cancer that compared
platinum-based adjuvant chemotherapy with observation following surgery
• 925 patients randomly assigned to receive platinum-based adjuvant
chemotherapy (n = 465) or observation (n = 460)
• Overall survival at 5 years was 82% in the chemotherapy arm and 74% in
the observation arm (P =.008)
• Recurrence-free survival at 5 years was also better in the adjuvant
chemotherapy arm than it P =.001).
Conclusion
• The benefit of adjuvant chemotherapy was
found to be restricted to patients with
incomplete surgical staging
• Incompletely staged patients with a poorly
differentiated grade III tumor were found to
derive the greatest benefit from adjuvant
chemotherapy.
Randomized phase III trial of three versus six cycles of
adjuvant carboplatin and paclitaxel in early stage epithelial
ovarian carcinoma: a Gynecologic Oncology Group study
(GOG 157)
• Randomization was to either 3 or 6 cycles of
chemotherapy consisting of P (175 mg/m2
over 3 h) and C (7.5 AUC over 30 min) every
21 days
• N = 427
Results
• Grade 3 or 4 neurotoxicity occurred in 4/211
(2%) and 24/212 (11%) treated patients on the 3-
and 6-cycle regimens, respectively (p<0.01)
• 6 cycles also caused significantly more severe
anemia and granulocytopenia.
• The recurrence rate for 6 cycles was 24% lower
(p=0.18),
• Estimated probability of recurrence within 5 years
was 20.1% (6 cycles) versus 25.4% (3 cycles).
• The overall death rate was similar for these
regimens
Conclusion
• Compared to 3 cycles, 6 cycles of C and P do
not significantly alter the recurrence rate in
high risk early stage EOC but are associated
with more toxicity.
RADIATION THERAPY
• There has been a resurgence of interest in the
role of whole abdominal radiation following
the recent report of a population-based study
from British Columbia that suggested that
whole abdominal radiation provided a survival
benefit when added to chemotherapy,
particularly in low-stage, nonserous cancers
like clear cell, low grade endometrioid,
mucinous cancers confined to the pelvis
Berek & Hacker’sGynecologic Oncology
Sixth Edition
Histotype predicts the curative potential of radiotherapy: the
example of ovarian cancers
K. D. Swenerton,J. L. Santos,C. B. Gilks2,M. Köbel3, P. J. Hoskins1,F. Wong1 N. D. Le2,4
• Study population :703 patients with stages I or II
ovarian cancer
• 351 had radiotherapy (based on physician choice)
• Patients were treated with three cycles of
platinum based chemotherapy alone, or followed
by pelvic and whole abdominal radiation at a dose
of 22.5 Gy to the pelvis in 10 fractions and 22.5
Gy in 22 fractions to the whole abdomen.
• An additional three cycles of chemotherapy
were administered to patients who did not
receive radiotherapy.
• Results : There was a 40% reduction in
disease-specific mortality and a 43% reduction
in overall mortality in patients with clear cell,
endometrioid, and mucinous cancers.
• Patients with serous cancers did not appear to
benefit from the adjuvant irradiation.
ADVANCED STAGE OVARIAN
CANCER
CYTOREDUCTIVE SURGERY
• The principal goal of cytoreductive surgery is the removal of
all of the primary cancer and, if possible, all metastatic
disease
• If resection of all metastases is not feasible, the goal should
be to reduce the tumor burden by resection of all individual
tumor nodules to an “optimal” status.
• The goal of “complete resection to no residual disease” is the
most optimal postoperative status
Berek & Hacker’sGynecologic Oncology
Sixth Edition
Theoretic Rationale
• More necrotic or hypoxic areas  low growth
fraction
• Smaller postoperative tumor volume may decrease
the chance of acquiring more mutations which
promote chemoresistance.
Berek & Hacker’sGynecologic Oncology
Sixth Edition
Resection of the pelvic tumor may include removal of the uterus, tubes, and
ovaries, as well as portions of the lower intestinal tract
Separation of the omentum from stomach and transverse colon.
Intestinal Resection
• The disease may involve focal areas of the small or
large intestine, and resection should be performed if
it would permit the removal of all or most of the
abdominal metastases
• Apart from the rectosigmoid colon, the most
frequent sites of intestinal metastasis are the
terminal ileum, the cecum, and the transverse colon.
Berek & Hacker’sGynecologic Oncology
Sixth Edition
Extensive ovarian carcinoma involving the bladder, rectosigmoid, and ileocecal
area
Resection Of Other Metastasis
Omental “cake” densely adherent to the spleen.
Peritoneal Cancer Index
• The PCI is an assessment combining lesion size
(0 to 3) with tumor distribution
(abdominopelvic regions 0 to 12) to estimate
the extent of disease within the abdomen and
pelvis as a numerical score
• Completeness of cytoreduction score CC-0 ,
CC-1
Devita, Hellman and Rosenberg’s Principles and Practice of oncology, 10th edition
Devita, Hellman and Rosenberg’s Principles and Practice of
oncology, 10th edition
Interval Cytoreductive Surgery
• Cytoreductive surgery after a biopsy only or a
primary suboptimal debulking followed by
induction chemotherapy
Principles and Practice of Gynaecologic
Oncology 6th Edition
The effect of debulking surgery after induction
chemotherapy on the prognosis in advanced epithelial
ovarian cancer. Gynecological Cancer Cooperative
Group of the European Organization for Research and
Treatment of Cancer.
RESULTS
Primary chemotherapy versus primary surgery
for newly diagnosed advanced ovarian cancer
(CHORUS): an open-label, randomised,
controlled, non-inferiority trial.
Conclusion
• Based on the above considerations, the
performance of a debulking operation as early
as possible in the course of the patient’s
treatment should be considered the standard
of care
• Neoadjuvant chemotherapy followed by
interval debulking should be reserved for
patients with a poor performance and
nutritional status
How to approach if patient has come
with incomplete Surgery
THANK YOU

Ovary 1

  • 1.
  • 2.
    Topics • RRSO • SURGICALSTAGING • MANAGEMENT OF EARLY STAGE OVARIAN CANCER • CYTOREDUCTIVE SURGERY IN ADVANCED STAGE OVARIAN CANCER • INTERVAL DEBULKING IN ADVANCED STAGE OVARIAN CANCER
  • 3.
  • 4.
    RRSO • The NCCN,ACOG and SGO have recommended that prophylactic oophorectomy be considered in women with ovarian cancer syndromes at age 40 in BRCA and 35 in HNPCC years or after childbearing is completed • Reduces the risk of BRCA-related gynaecologic cancer by 96% • Reduced the risk of developing subsequent breast cancer by 50–80%Berek & Hacker’sGynecologic Oncology Sixth Edition
  • 5.
    Protocol • Perform OperativeLaparoscopy • Survey upper abdomen, bowel surfaces, omentum, appendix and pelvic organs • Biopsy any abnormal peritoneal findings • Total BSO • Both ovaries and tubes to be placed in Endobag for retrieval from pelvis . • HNPCC : TAH HAS TO BE DONE NCCN
  • 6.
  • 7.
  • 9.
    Open Laparotomy • Preoperativeevaluation suggestive of malignancy • Pre op FNAC : no role • Midline or paramedian incision
  • 10.
    Protocol • Aspiration ofascites/ peritoneal lavage • Visualization of peritoneal surfaces • Systematic exploration of all the intra-abdominal surfaces and viscera : Direct visual inspection is important • Excision/ biopsy of suspicious deposits on peritoneum or adhesions NCCN
  • 11.
    • Random peritonealbiopsies from pelvis (if no suspicious areas), paracolic gutters, undersurfaces of diaphragm, urinary bladder and POD • BSO + Hysterectomy : Intact encapsulated mass • Infracolic omentectomy • B/L Pelvic LN dissection • Para aortic LN dissection : B/L to the level of Inferior Mesenteric Artery NCCN
  • 12.
    Role of SentinelNode? • Still experimental • 10-15% metastasize to paraaortic lymph nodes • Advantage : Less surgical morbidity, Less pedal lymphedema and complications, lesser chances of Nerve injury and vessel injury • Not done : More than 1 drainage sites
  • 13.
    Fertility sparing surgery •Apparent early stage disease • Good risk tumors o Unilateral stage I tumors (Ia and Ic) o Low risk tumors (Grade I, II) o LMP lesions NCCN
  • 14.
    Laparoscopy vs Laparotomy •Patient comorbidities • Number of previous abdominal surgeries • Skills of the surgeon • Both allow for comprehensive surgical staging. • Lymph node counts and the size of the omental specimen obtained are similar for both procedures. • Port site metastasis : Risk is small (1-3%) and such metastases are often a sign of disseminated intra- abdominal disease • Principles of Oncology need to be followed NCCN
  • 15.
  • 16.
    • Stage Iepithelial ovarian oLow risk : TAH + BSO + Surgical Staging oHigh risk : Requires adjuvant treatment Low risk High risk Low Grade High grade Intact Capsule Tumor growth through capsule No surface excrescences Surface excrescences No ascites Ascites Negative peritoneal cytologic findings Malignant cells in fluid Unruptured Preoperative rupture No dense adhesions Dense adherence Berek & Hacker’sGynecologic Oncology Sixth Edition
  • 17.
    Adjuvant Treatment ofpatients with early stage High Risk Ovarian Cancer • Chemotherapy • Radiation Therapy
  • 18.
  • 20.
    International Collaborative OvarianNeoplasm trial 1 and Adjuvant ChemoTherapy In Ovarian Neoplasm trial • Preplanned combined analysis in early-stage ovarian cancer that compared platinum-based adjuvant chemotherapy with observation following surgery • 925 patients randomly assigned to receive platinum-based adjuvant chemotherapy (n = 465) or observation (n = 460) • Overall survival at 5 years was 82% in the chemotherapy arm and 74% in the observation arm (P =.008) • Recurrence-free survival at 5 years was also better in the adjuvant chemotherapy arm than it P =.001).
  • 21.
    Conclusion • The benefitof adjuvant chemotherapy was found to be restricted to patients with incomplete surgical staging • Incompletely staged patients with a poorly differentiated grade III tumor were found to derive the greatest benefit from adjuvant chemotherapy.
  • 22.
    Randomized phase IIItrial of three versus six cycles of adjuvant carboplatin and paclitaxel in early stage epithelial ovarian carcinoma: a Gynecologic Oncology Group study (GOG 157) • Randomization was to either 3 or 6 cycles of chemotherapy consisting of P (175 mg/m2 over 3 h) and C (7.5 AUC over 30 min) every 21 days • N = 427
  • 23.
    Results • Grade 3or 4 neurotoxicity occurred in 4/211 (2%) and 24/212 (11%) treated patients on the 3- and 6-cycle regimens, respectively (p<0.01) • 6 cycles also caused significantly more severe anemia and granulocytopenia. • The recurrence rate for 6 cycles was 24% lower (p=0.18), • Estimated probability of recurrence within 5 years was 20.1% (6 cycles) versus 25.4% (3 cycles). • The overall death rate was similar for these regimens
  • 24.
    Conclusion • Compared to3 cycles, 6 cycles of C and P do not significantly alter the recurrence rate in high risk early stage EOC but are associated with more toxicity.
  • 25.
  • 26.
    • There hasbeen a resurgence of interest in the role of whole abdominal radiation following the recent report of a population-based study from British Columbia that suggested that whole abdominal radiation provided a survival benefit when added to chemotherapy, particularly in low-stage, nonserous cancers like clear cell, low grade endometrioid, mucinous cancers confined to the pelvis Berek & Hacker’sGynecologic Oncology Sixth Edition
  • 27.
    Histotype predicts thecurative potential of radiotherapy: the example of ovarian cancers K. D. Swenerton,J. L. Santos,C. B. Gilks2,M. Köbel3, P. J. Hoskins1,F. Wong1 N. D. Le2,4 • Study population :703 patients with stages I or II ovarian cancer • 351 had radiotherapy (based on physician choice) • Patients were treated with three cycles of platinum based chemotherapy alone, or followed by pelvic and whole abdominal radiation at a dose of 22.5 Gy to the pelvis in 10 fractions and 22.5 Gy in 22 fractions to the whole abdomen.
  • 28.
    • An additionalthree cycles of chemotherapy were administered to patients who did not receive radiotherapy. • Results : There was a 40% reduction in disease-specific mortality and a 43% reduction in overall mortality in patients with clear cell, endometrioid, and mucinous cancers. • Patients with serous cancers did not appear to benefit from the adjuvant irradiation.
  • 29.
  • 32.
    CYTOREDUCTIVE SURGERY • Theprincipal goal of cytoreductive surgery is the removal of all of the primary cancer and, if possible, all metastatic disease • If resection of all metastases is not feasible, the goal should be to reduce the tumor burden by resection of all individual tumor nodules to an “optimal” status. • The goal of “complete resection to no residual disease” is the most optimal postoperative status Berek & Hacker’sGynecologic Oncology Sixth Edition
  • 33.
    Theoretic Rationale • Morenecrotic or hypoxic areas  low growth fraction • Smaller postoperative tumor volume may decrease the chance of acquiring more mutations which promote chemoresistance. Berek & Hacker’sGynecologic Oncology Sixth Edition
  • 34.
    Resection of thepelvic tumor may include removal of the uterus, tubes, and ovaries, as well as portions of the lower intestinal tract
  • 35.
    Separation of theomentum from stomach and transverse colon.
  • 36.
    Intestinal Resection • Thedisease may involve focal areas of the small or large intestine, and resection should be performed if it would permit the removal of all or most of the abdominal metastases • Apart from the rectosigmoid colon, the most frequent sites of intestinal metastasis are the terminal ileum, the cecum, and the transverse colon. Berek & Hacker’sGynecologic Oncology Sixth Edition
  • 37.
    Extensive ovarian carcinomainvolving the bladder, rectosigmoid, and ileocecal area
  • 38.
    Resection Of OtherMetastasis Omental “cake” densely adherent to the spleen.
  • 39.
    Peritoneal Cancer Index •The PCI is an assessment combining lesion size (0 to 3) with tumor distribution (abdominopelvic regions 0 to 12) to estimate the extent of disease within the abdomen and pelvis as a numerical score • Completeness of cytoreduction score CC-0 , CC-1 Devita, Hellman and Rosenberg’s Principles and Practice of oncology, 10th edition
  • 40.
    Devita, Hellman andRosenberg’s Principles and Practice of oncology, 10th edition
  • 41.
    Interval Cytoreductive Surgery •Cytoreductive surgery after a biopsy only or a primary suboptimal debulking followed by induction chemotherapy Principles and Practice of Gynaecologic Oncology 6th Edition
  • 42.
    The effect ofdebulking surgery after induction chemotherapy on the prognosis in advanced epithelial ovarian cancer. Gynecological Cancer Cooperative Group of the European Organization for Research and Treatment of Cancer.
  • 44.
  • 45.
    Primary chemotherapy versusprimary surgery for newly diagnosed advanced ovarian cancer (CHORUS): an open-label, randomised, controlled, non-inferiority trial.
  • 49.
    Conclusion • Based onthe above considerations, the performance of a debulking operation as early as possible in the course of the patient’s treatment should be considered the standard of care • Neoadjuvant chemotherapy followed by interval debulking should be reserved for patients with a poor performance and nutritional status
  • 50.
    How to approachif patient has come with incomplete Surgery
  • 52.