Risk factors for stress urinary incontinence after native-tissue vaginal repair of pelvic organ prolapse.

OBJECTIVE: To identify risk factors for postoperative stress urinary incontinence (POSUI) after native-tissue prolapse repair without a concomitant anti-incontinence procedure.

METHODS: The present single-center retrospective study included women with genital prolapse who underwent high uterosacral ligament suspension without a concomitant anti-incontinence procedure during 2008-2013. Univariate and multivariate analyses were performed to identify risk factors for POSUI (identified through clinical interview and International Consultation on Incontinence Modular Questionnaire-Short Form [ICIQ-SF] self-administration) at 6 months.

RESULTS: In total, 87 (20.9%) of 417 women developed POSUI. Preoperative stress urinary incontinence (SUI) and urodynamically diagnosed SUI were significantly associated with POSUI; moreover, women with POSUI had a higher preoperative ICIQ-SF score, a lower opening detrusor pressure, and a lower detrusor pressure at maximum flow than did women without POSUI (P<0.05 for all comparisons). In the multivariate analysis, preoperative SUI (odds ratio 3.11), a detrusor pressure at maximum flow of less than 30 cm H2 O (odds ratio 2.93), and urodynamically diagnosed SUI (odds ratio 2.26) were independent risk factors for POSUI.

CONCLUSION: Preoperative urodynamic parameters, obtained before prolapse repair surgery, were associated with POSUI and could be useful in providing adequate counseling to facilitate decision making on whether to add a concomitant anti-incontinence procedure.