Role of Anterior Colporrhaphy in Post Void Residual Urine Volume and Stress Urinary Incontinence: A Prospective Interventional Study

Abstract

Introduction: Pelvic floor disorders are quite debilitating for middle aged and elderly women. Post Void Residual (PVR) urine volume is a key marker for the efficacy of emptying of bladder. Both, preoperative and postoperative assessment of PVR volume helps to know about the voiding dysfunction and help to detect Stress Urinary Incontinence (SUI). There is a paucity of data available regarding postoperative outcome assessment of surgical intervention in terms of PVR urine volume. Aim: To identify the risk factors for elevated PVR and to evaluate the rate of resolution of elevated PVR in patients undergoing vaginal hysterectomy with anterior colporrhaphy for Pelvic Organ Prolapse (POP). Materials and Methods: A prospective interventional study was conducted at Atal Bihari Vajpayee Institute of Medical Sciences and Dr. Ram Manohar Lohia Hospital, Delhi from June 2019 to June 2021. A total of 50 patients with POP meeting the inclusion criteria were enrolled. Preoperative grade of prolapse, SUI and PVR urine volume was assessed. All patients enrolled in study, underwent vaginal hysterectomy with anterior colporrhaphy. Postoperative PVR urine volume and de novo SUI and occult stress urinary incontinence (OSUI) was assessed. Data was analysed using Statistical Package for the Social Sciences (SPSS) version 21.0. The p-value <0.05 was considered significant. Qualitative variables were analysed using Fischer's exact test. Results: Preoperative PVR (≥50 mL) was seen in 28 (56%) women. Advancing age (p-value 0.043) higher Body Mass Index (BMI) (p-value=0.033) higher POP (p-value=0.003) and higher degree of cystocele (p-value<0.001) staging were significantly associated with elevated preoperative PVR. In this study, only 22% of patients (11/50) had preoperative SUI and 12% (6/50) had preoperative OSUI. In this study amongst the six patients with preoperative OSUI, 100% had significant preoperative PVR. None of the patients with preoperative SUI and preoperative OSUI had postoperative persistent SUI or de novo SUI after undergoing anterior colporrhaphy with vaginal hysterectomy (p-value <0.001). Conclusion: PVR urine volume is increased with degree of prolapse. Raised PVR is also associated with OSUI, which is usually seen in patients with advanced prolapse and cystocele. Vaginal hysterectomy with anterior colporrhaphy significantly reduced postoperative PVR and SUI.