Outcomes of stress urinary incontinence in women undergoing TOT versus Burch colposuspension with abdominal sacrocolpopexy.

Abstract

To compare postoperative rates of stress urinary incontinence (SUI) in patients with pelvic organ prolapse and SUI undergoing abdominal sacrocolpopexy (ASC) with Burch colposuspension or a transobturator tape (TOT) sling. In this retrospective cohort study, medical records of 117 patients who underwent ASC with Burch (n = 60) or TOT (n = 57) between 2008 and 2010 at NYU Winthrop Hospital were assessed. Preoperative evaluation included history, physical examination, cough stress test (CST), and multichannel urodynamic studies (MUDS). Primary outcomes were postoperative continence at follow-up up to 12weeks. Patients considered incontinent reported symptoms of SUI and had a positive CST or MUDS. Secondary outcomes included intra- and postoperative complications. Associations were analyzed by Fisher's exact, McNemar's and Wilcoxon-Mann-Whitney tests. The groups were similar regarding age, BMI, parity, Valsalva leak point pressure (VLPP), and prior abdominal surgery (p = 0.07-0.76). They differed regarding preoperative SUI diagnosed by self-reported symptoms, CST, or MUDS (TOT 89.5-94.7%, Burch 60.7-76.3%, p < 0.0001-0.007). The TOT group had lower rates of postoperative SUI (TOT 12.5%, Burch 30%, OR = 0.15, 95% CI 0.04, 0.62). Relative risk reduction (RRR) in postoperative SUI for the TOT group compared with the Burch group was 79%-86%. There were no differences concerning intra- and postoperative complications. The Burch group had a higher rate of reoperation for persistent/recurrent SUI (Burch 25%, TOT 12% p = 0.078). The TOT group experienced a greater reduction in postoperative incontinence, and the Burch group underwent more repeat surgeries. The TOT sling may be superior in patients undergoing concomitant ASC.