Urethral Sphincter Fatigue After Robot-assisted Radical Prostatectomy: Descriptive Questionnaire-based Study and Anatomic Basis

Postoperative sphincter fatigue was reduced by NVB preservation, suggesting that decreased sphincter fatigue may contribute to improvement of continence after RARP. As a background, existence of sarcolemmal nNOS and nNOS-positive nerve terminals arising from the NVB was confirmed in male pelvic floor striated muscles.