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Division of Gynecologic Oncology, Department of Pathology, UCLA School of Medicine, Center for Ovarian Cancer, Jonsson Comprehensive Cancer Center, Los Angeles, California.
Variables associated with a negative second-look laparotomy in patients with stage III epithelial ovarian carcinoma are analyzed. Fifty-six patients were clinically free of disease after systemic chemotherapy and were subjected to second-look laparotomy to assess tumor status. Eighteen of these patients (32.1%) had no evidence of malignancy. Eight (14.3%) additional patients with no gross evidence of disease at laparotomy had microscopic persistence; five of these had disease documented in the pelvic or para-aortic lymph nodes. Significant Variables associated with a histologically and cytologically negative second-look operation were low tumor grade (P < .01), the use of cis-platinum containing combination chemotherapy (P < .01), patient age less than or equal to 50 years (P < .02), small residual tumor (less than 0.5 cm) before chemotherapy (P < .05), and metastatic tumor less than or equal to 10 cm before initial cytoreduction (P < .05). patients treated with six to nine cycles of combination chemotherapy had the same probability of a negative second-look laparotomy as those treated with ten to 12 cycles. Multivariate discriminate analysis indicated that patients with low tumor grade, those receiving cis-platinum containing combination chemotherapy, and those with minimal residual tumors (less than 0.5 cm) after primary cytoreductive surgery correctly classify second-look status in 78.6% of patients. Until a nonsurgical method of monitoring subclinical disease is available, a thorough second-look laparotomy, including a pelvic and para-aortic lymphadenectomy, should be performed.
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