High number of endometrial polyps is a strong predictor of recurrence: findings of a prospective cohort study in reproductive-age women

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Abstract

Objective: To compare the incidence of recurrence between a cohort with a high number (≥6) of endometrial polyps (EPs) and a single-EP cohort among reproductive-age patients after polypectomy. Design: Prospective observational cohort study. Setting: Single university center. Patient(s): Premenopausal women who underwent hysteroscopic endometrial polypectomy were recruited. Intervention(s): Patients underwent a transvaginal ultrasound scan every 3 months after polypectomy to detect EP recurrence. Kaplan-Meier and Cox regression models were used to compare the risk of recurrence between the two cohorts and analyze the potential risk factors for EP recurrence. Main Outcome Measure(s): EP recurrence rate. Result(s): The study enrolled 101 cases with a high number of EP and 81 cases with a single EP. All baseline parameters were similar except that the high number of EP cohort had a slightly lower mean age than the single EP cohort (33.5 [range 30.0–39.0] vs. 36.0 [30.5–43.0] years). The risk of recurrence in the high number of EP cohort was 4.08 (95% confidence interval [CI] 1.89–8.81) times higher than that in the single-EP cohort 1 year after polypectomy, with a recurrence rate of 45.5% versus 13.4%, respectively. A high number of EPs, endometriosis, and previous polypectomy history were independently associated with polyp recurrence. Conclusion(s): The high number of EP cohort was much more prone to recurrence than the single-EP cohort. A high number of EPs, endometriosis, and previous polypectomy history were independent risk factors for recurrence. A high number of EPs is suggested to be a distinct subgroup with different pathogenesis, which warrants frequent monitoring and prevention.

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Gu, F., Zhang, H., Ruan, S., Li, J., Liu, X., Xu, Y., & Zhou, C. (2018). High number of endometrial polyps is a strong predictor of recurrence: findings of a prospective cohort study in reproductive-age women. Fertility and Sterility, 109(3), 493–500. https://doi.org/10.1016/j.fertnstert.2017.11.029

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