title: Analysis of the treatment of two types of acute urinary retention.
abstract: OBJECTIVE
  This study analyzed the type of acute urinary retention (AUR) and evaluated the treatments used, including trial without catheter (TWOC).
  
  
  METHODS
  This study was based on 299 patients who were treated for AUR from January 2007 to August 2009. The patients were classified into the spontaneous AUR group (group S) and the precipitated AUR group (group P), in which AUR was consecutive to triggering events. The treatment modalities including TWOC, the success rate of TWOC, age, prostate-specific antigen (PSA) levels, the volume of the prostate, and the drained volume at catheterization were analyzed in each group.
  
  
  RESULTS
  Of 299 men with AUR, 160 (54%) had spontaneous AUR and 139 (46%) had precipitated AUR. Compared with group P, patients in group S were more likely to be treated by surgery, either immediately (16.9% vs. 3.6%, p<0.05) or after prolonged catheterization (42.2% vs. 29.1%, p<0.05). The success rate of TWOC was lower in men of older ages (≥70 years) and in those with enlarged prostates (≥50 ml), higher PSA levels (≥3 ng/ml), and a large drained volume at catheterization (≥1,000 ml).
  
  
  CONCLUSIONS
  In this group of AUR patients, there were slightly more patients with spontaneous AUR (54%) than with precipitated AUR (46%). The success rate of TWOC was more than 70% regardless of the type of AUR. Although TWOC is recommended primarily in the treatment of AUR, early surgical intervention should be considered if the patient has an enlarged prostate (≥50 ml) or a large drained volume at catheterization (≥1,000 ml).
authors.affiliation: Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea.
authors.forename: Kwangsu
authors.initials: K
authors.lastname: Park
authors.forename: Sang Hoon
authors.initials: SH
authors.lastname: Kim
authors.forename: Sun Gook
authors.initials: SG
authors.lastname: Ahn
authors.forename: Seung-Ju
authors.initials: SJ
authors.lastname: Lee
authors.forename: U-Syn
authors.initials: US
authors.lastname: Ha
authors.forename: Jun Sung
authors.initials: JS
authors.lastname: Koh
authors.forename: Yong-Seok
authors.initials: YS
authors.lastname: Lee
authors.forename: Chang Hee
authors.initials: CH
authors.lastname: Han
authors.forename: Su Yeon
authors.initials: SY
authors.lastname: Cho
authors.forename: Hyun Woo
authors.initials: HW
authors.lastname: Kim
keywords: Prostatic hyperplasia; Urinary catheterization; Urinary retention