Fertility outcomes in stage I ovarian immature teratomas

Objective: To evaluate the impact of adjuvant chemotherapy, type of ovarian surgery, and the surgical approach on fertility in patients with stage I immature teratoma of the ovary. Methods: Clinicopathologic data were retrospectively collected and analyzed from a cohort of 47 patients with childbearing desire treated for a stage I immature teratoma of the ovary at IRCCS San Gerardo dei Tintori Hospital, Monza, Italy. Multivariate logistic regression was used to address the influence of chemotherapy and type of surgery on the outcome. Results: Among the patients included, 78.7% (37/47) were able to get pregnant, with a live birth rate of 80.9% (51/63 pregnancies). These rates were not different between adjuvant chemotherapy versus surveillance group (62.5% (5/8) and 82.0% (32/39), respectively; p=0.22) nor between the type of ovarian surgery (cystectomy vs unilateral salpingo-oophorectomy; p=0.57) and surgical approach (laparotomy or laparoscopy; p=0.18). A statistically significant difference was found for stage of disease (a decrease in pregnancy rate from 86.5% (32/37) for stage IA to 50.0% for stage IC (5/10); p=0.02), but it was not confirmed in the multivariate analysis. After relapse diagnosis and management, a total of 62.5% (5/8) of patients conceived and had at least one live birth baby. Conclusions: The fertility-sparing approach is feasible in this population, and fertility does not depend on surgical approach or post-operative treatment. However, adjuvant chemotherapy should be carefully evaluated in this setting.