The feasibility of fertility-sparing surgery in treating advanced-stage borderline ovarian tumors: A meta-analysis

Abstract

Objective: To evaluate the feasibility of fertility-sparing surgery in treating advanced-stage borderline ovarian tumors (BOTs).

Materials and methods: The databases of PubMed, Cochrane Library, EMbase, Web of Science, Chinese National Knowledge Infrastructure (CNKI), Weipu (Chinese), and Wanfang (Chinese) were searched using the keywords "advanced-stage borderline ovarian tumors", "fertility-sparing surgery", "conservative surgery", and "borderline ovarian tumor" to collect the clinical controlled trails (CCTs) regarding fertility-sparing surgery for the treatment of advanced-stage BOT. The references of those CCTs were also searched manually. Data extraction and quality assessment were done using Review manager Version 5.1 and R software Version 2.11.1.

Results: Four studies involving 74 patients were included. The results of meta-analysis showed that: (1) compared with radical surgery, the recurrence of the fertility-sparing surgery during the follow time is higher with significant difference [odds ratio (OR)=3.87, 95% confidence interval (CI) (1.20,12.44), p=0.02]; (2) the difference of survival rate between the two groups was not significant [5-year survival: OR=0.85, 95%CI (0.03, 23.82), p=0.92; 7-year survival: OR=0.80, 95%CI (0.08, 8.41), p=0.85]; and (3) concerning fertility results in fertility-sparing surgery, 18 patients tried to become pregnant, 15 pregnancies were achieved in the 11 patients, 11 full-term deliveries.

Conclusion: The rate of ovarian recurrence in patients who underwent conservative treatment was higher than in patients with radical treatment, but it did not affect patient survival; fertility-sparing surgery could be induced to preserve the fertility potential of young patients.

Keywords: advanced-stage borderline ovarian tumors; fertility-sparing surgery; meta-analysis.