Ovarian cancer: 20-year experience with cytoreductive surgery and perioperative intraperitoneal chemotherapy.

Purpose: Complete cytoreduction has been established as the most significant factor of long-term survival in epithelial ovarian cancer. Perioperative intraperitoneal chemotherapy has been added in the treatment of ovarian cancer the last 20 years. The purpose of the study was to determine the outcome of women with ovarian cancer using the data of one surgical team.

Methods: Women with ovarian cancer treated from 2000 to 2019 by the same surgical team were enrolled in the study. The patients underwent cytoreductive surgery combined with perioperative intraperitoneal chemotherapy. Clinical and histopathological variables were correlated to hospital mortality, morbidity, survival and recurrences.

Results: The mean age of 350 women was 59.5+11.7 years. The hospital mortality and morbidity rate were 2.0% and 28.3%, respectively. Complete cytoreduction was possible in 60% of the cases. The overall 5- and 10-year survival rate was 47% and 39%, respectively. The prognostic variables of survival were the extent of peritoneal malignancy, the extent of previous surgery, the grade of differentiation, the use of adjuvant chemotherapy, the lymphadenectomy of the resected large bowel, and the postoperative morbidity. The recurrence rate was 45.7%. The extent of peritoneal carcinomatosis, the extent of previous surgery, and the grade of differentiation were the prognostic variables of recurrence.

Conclusions: The limited extent of peritoneal carcinomatosis in women with well differentiated ovarian cancer that do not have history of previous surgery, who undergo standard pelvic peritonectomy procedure, and receive adjuvant chemotherapy are expected to be long-term survivors.