Incidence and predictors of urinary incontinence rates post-holmium laser enucleation of prostate

Abstract

Introduction: One of the main adverse outcomes following Holmium laser enucleation of the prostate (HoLEP) is the development of transient de novo urinary incontinence (UI). We aimed to evaluate the correlation of multiple risk factors to UI rates post-HoLEP. Methods: A review of prospectively maintained 7 year database for HoLEP patients in a single center was performed. UI data at 6 week, 3 month, and 1 year follow-up intervals were assessed with bivariate and multivariate analysis of multiple potential risk factors. Results: The study included 666 patients with median (IQR) age of 72 (66–78) years old and median (IQR) preoperative prostate volume of 89 (68–126) gm. UI was seen in 287 (43%), 100 (15%) and 26 (5.8%) at 6 week, 3 month, and 1 year follow up occasions respectively. At 6 weeks follow up, UI type was stress, urge and mixed in 121 (18.16%), 118 (17.72) and 48 (7.21%) patients respectively. Using a multivariate regression analysis, obesity and pre-operative UI were associated with postoperative UI rate at both 6 week (p =.0065,.031) and 3 month (p =.0261,.044) follow up encounters respectively. Also, larger specimen weight was another predictor for 6 week UI (p =.0399) while higher frailty score was a predictor for UI at 3 month occasion (p =.041). Conclusion: Patients with preoperative UI, obesity, frailty, and large prostate volume are at higher risk of short-term UI post-HoLEP up to 3 months. Patients with one or more of these risk factors should be counseled regarding the higher risk of UI.