Risk factors for recurrence of pelvic organ prolapse after vaginal surgery among Ugandan women: a prospective cohort study

INTRODUCTION AND HYPOTHESIS: This study was aimed at determining the recurrence rate and risk factors for the recurrence of pelvic organ prolapse (POP), at 1 year post-vaginal reconstructive surgery in a resource-limited setting. METHODS: We enrolled women who underwent vaginal surgery for POP at the urogynecology unit of Mbarara Regional Referral Hospital (MRRH) in southwestern Uganda between December 2018 and February 2020. The surgeries that were performed include anterior colporrhaphy for cystocele, posterior colporrhaphy for rectocele, vaginal hysterectomy with vault suspension for uterine prolapse, and cervicopexy in those with uterine prolapse where uterine-sparing surgery was desired. The women were followed up for a period of 1 year after surgery. Pelvic examinations in lithotomy position under maximum strain were carried out to assess for recurrence using the Pelvic Organ Quantification (POP-Q) system. Recurrence was defined as a prolapse of ≥POP-Q stage II. Descriptive analyses and multivariate log binomial regression were performed to determine risk factors for recurrence. RESULTS: Of the 140 participants enrolled, 127 (90.7%) completed the follow-up at 1 year. The recurrence rate was 25.2% (32 out of 127). Most (56.3%) of the recurrences occurred in the anterior compartment and in the same site previously operated. Women aged <60 years (RR = 2.34; 95% CI: 1.16–4.72; p = 0.018) and those who had postoperative vaginal cuff infection (RR = 2.54; 95% CI: 1.5–4.3; p = 0.001) were at risk of recurrence. CONCLUSION: Recurrence of POP was common. Younger women, and those with postoperative vaginal cuff infection, were more likely to experience recurrent prolapse after vaginal repair.