133 Outcomes of minimally invasive staging for clinical stage I ovarian clear cell carcinoma

Objectives Compare outcomes of open and minimally invasive staging (MIS) for patients with early stage ovarian clear cell carcinoma (OCCC). Methods Patients with clinical stage I OCCC, no history of another tumor and known mode of surgery, diagnosed between 2012–2015 were drawn from the National Cancer Database. Impact of MIS on overall survival (OS) of patients who at least one month of follow-up was assessed with the log-rank test. A Cox model was constructed to control for confounders. Results A total of 1402 patients were identified; 438 (31.2%) had MIS. Conversion rate was 11.6%. Laparotomy and MIS groups were comparable in terms of age, race, insurance, co-morbidities, chemotherapy administration, rate of capsule rupture and final pathologic stage distribution. Patients who had MIS had shorter hospital stay (median 2 vs 4 days, p Conclusions For patients with apparent early stage OCCC, open and MIS staging have similar oncologic outcomes.