Long-term recurrence of endometriosis in women with subfertility caused by endometriosis: A comparison of the efficacy of surgery and assisted reproductive technology as fertilization treatment approaches

Background: The evolution of fertility treatment methods such as laparoscopic surgery and assisted reproductive technology (ART) leads to an increased chance for conception in women with endometriosis. However, it is still not clear which treatment is more likely to result in endometriosis recurrence. Objectives: The current study aimed at assessing the recurrence rate of endometriosis and its main determinants following fertility treatment with surgery or ART. Methods: The current historical cohort study was conducted on 51 consecutive women with endometriosis undergoing fertilization procedures, including laparoscopic surgery (n = 42) and ART (n = 9) in Tehran from 2006 to 2016. All patients with complete hospital records were enrolled in the study. The patients in the two groups were followed up for five years for endometriosis recurrence. Results: Within the follow-up time, the rate of endometriosis recurrence in patients of the surgery and ART groups was 28.6 and 44.4, respectively, indicating no significant difference between the groups (P = 0.436). In this regard, the 1-, 2-, and 3-year recurrencefree survival rate in the ART group was 87.5, 50.0, and 50.0, and in the surgery group was 96.9, 90.6, and 70.5, respectively. Using the Cox proportional hazard modeling adjusted for baseline variables, the method of fertilization (ART or surgery) could not affect the rate of long-term recurrence of endometriosis (odds ratio = 1.428, 95 confidence interval: 0.177-9.900, P = 0.784). Conclusions: The method of fertilization treatment-e g, surgery, and ART-may not affect the rate of endometriosis recurrence in women with subfertility caused by endometriosis. © 2020, Author(s)