title: Preoperative factors affecting postoperative early quality of life during the learning curve of holmium laser enucleation of the prostate.
abstract: OBJECTIVE
  The aim of this study was to investigate the preoperative factors related to early quality of life (QoL) in patients with benign prostatic hyperplasia after holmium laser enucleation of the prostate (HoLEP) during the surgeon's learning curve.
  
  
  METHODS
  The medical records of 82 patients with a follow-up period of at least 3 months who were treated with HoLEP during the time of a surgeon's learning curve were analyzed retrospectively. We divided the patients into two groups on the basis of the QoL component of the International Prostate Symptom Score (IPSS) 3 months after HoLEP: the high QoL group (IPSS/QoL≤3) and the low QoL group (IPSS/QoL≥4). Preoperative factors in each group were compared, including prostate volume, prostate-specific antigen, history of acute urinary retention (AUR), urgency incontinence, IPSS, and urodynamic parameters. Detrusor underactivity was defined as a bladder contractility index less than 100 on urodynamic study.
  
  
  RESULTS
  A total of 61 patients (74.3%) had a high QoL, whereas 21 (25.7%) had a low QoL. A history of AUR, detrusor pressure on maximal flow (PdetQmax), bladder outlet obstruction grade, bladder contractility index, and detrusor underactivity were associated with postoperative QoL in the univariate analysis. In the multivariate analysis, a history of AUR and PdetQmax were independent factors affecting postoperative QoL.
  
  
  CONCLUSIONS
  A history of AUR and bladder contractility affect early QoL, and preoperative urodynamic study plays an important role in the proper selection of patients during the HoLEP learning curve.
authors.affiliation: Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea.
authors.forename: Kang Jun
authors.initials: KJ
authors.lastname: Cho
authors.forename: Hyo Sin
authors.initials: HS
authors.lastname: Kim
authors.forename: Jun Sung
authors.initials: JS
authors.lastname: Koh
authors.forename: Seung Bum
authors.initials: SB
authors.lastname: Han
authors.forename: Sang Hoon
authors.initials: SH
authors.lastname: Kim
authors.forename: Hyun Woo
authors.initials: HW
authors.lastname: Kim
authors.forename: Su Yeon
authors.initials: SY
authors.lastname: Cho
authors.forename: Joon Chul
authors.initials: JC
authors.lastname: Kim
keywords: Holmium; Lasers; Prostatic hyperplasia; Quality of life