Introduction/Background To determine the probability of increase in recurrence risk of Fertility-Sparing Surgery (FSS) in Borderline Ovarian Tumors (BOT).

Methodology Our retrospective study looks back between November 2015- February 2023. We evaluated 52 patients, diagnosed with BOT and had their first surgery, demographic features, treatments and follow-up datas. The prior objective was to determine the recurrence risk of FSS in patients diagnosed with BOT.

Results Median age of the patients included in the study is 40 (min: 19-max: 78). 71.2% of the patients were in reproductive ages and 18 patients(34.6%) were nulliparous women. The median values were found as CA 125: 58.8(min:9-max:5668), CA 19–9: 12.3(min:0-max: 6821).

Total hysterectomy with bilateral salpingo-oophorectomy procedure was performed to the 48.1% of the patients. 24 out of 37 patients in reproductive ages were treated with FSS. According to follow-up datas, in 11.4% of 44 cases(5/44) recurrence occurred. Median follow-up duration is 46 months(min:2-max: 96). While recurrence rate was 17.4% in FSS performed cases, it was 4,8% in other group. Even though there was a threefold increase in recurrence rate in FSS performed cases, it’s not statistically significant due to small number of cases. Log Rank test was used in analysis of disease-free survival time and no significant difference was seen(p=0,134).

Conclusion In Fertility-Sparing Surgery recurrence rate of BOT is three times higher than classical approach.

Disclosures The authors have no conflict of interest related this research