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EP876 Oncologic outcome of cystectomy compared with unilateral salpingo-oophorectomy in the treatment of stage I borderline ovarian tumors
  1. T-K Jang,
  2. H Chung,
  3. S-H Kwon,
  4. S-J Shin,
  5. S Lee and
  6. C-H Cho
  1. Obstetrics and Gynecology, Keimyung University School of Medicine, Dongsan Medical Center, Daegu, Republic of Korea


Introduction/Background The aim of this study was to compare the oncologic outcomes in stage I borderline ovarian tumors (BOTs) patients treated with unilateral ovarian cystectomy (UOC) versus unilateral salpingo-oophorectomy (USO).

Methodology This was a retrospective study of 95 patients with stage I BOTs treated with cystectomy (n=22) or unilateral salpingo-oophorectomy (n=73) between 2000 and 2017 at Keimyung University Dongsan Medical Center. The surgical and oncologic outcomes between the two groups (UOC versus USO) were compared.

Results After a median follow-up of 76 months (range: 10–215), there were 9 patients who had recurrences (UOC group: 4 vs. USO group: 5). The recurrence rate was higher in UOC group (18.2%) than in the USO group (6.8%).

However, there was no statistically significant difference in recurrence rates (p=0.104) and 5-year progression free-survival (p=0.099) between the two groups. All recurred patients except 1 patient (USO group) were successfully treated by secondary operation and were alive with no clinical evidence of disease. Only 1 patient was died due to disease.

Conclusion Our results support that both surgical methods are an acceptable treatment for women with stage I BOTs. Although USO is an appropriate treatment for BOTs patients, a UOC can be considered for patients who wish to preserve fertility when a unilateral cystectomy is the only surgical method.

Disclosure Nothing to disclose.

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