Patient cohort
From January 2008 to March 2014, a total of 1985 patients with BPH who underwent laser prostatectomy at two university hospitals were initially included. Among these patients, PVP was performed in 836 patients, and HoLEP was performed in 1149 patients. After excluding 377 patients with incomplete data about bladder compliance prior to surgery, 1608 patients were finally included in the analysis. Medical records of these patients were retrospectively reviewed using database of Boramae Medical Center from 2018 to 2020. Data were fully anonymized before accessed them. This study was approved and the consent was waived by the Institutional Review Board of Boramae Medical Center. In addition, all methods were performed in accordance with relevant guidelines and regulations by including statement in the methods section to this effect.