title: Management outcome of acute urinary retention: model of prediction.
abstract: OBJECTIVE
  To assess for predictors of outcome in patients presenting with acute urinary retention (AUR).
  
  
  METHODS
  A study was performed in our unit to evaluate trial without catheter (TWOC) and successive management. We assessed for predictors of surgical or medical management, which included: age, volume drained at time of catheterisation, cause of retention, serum creatinine, success of trial of voiding, co-morbidities, prostate-specific antigen (PSA) and prostate size on digital rectal examination (DRE).
  
  
  RESULTS
  72 men were entered into the study over an 18-month period: 27 had a successful first TWOC, 20 patients had a second TWOC, and 6 were successful. In total, 31 of the 33 patients with a successful TWOC remained on alpha-blockers without a further episode of AUR within a minimum of 6 months' follow-up. Patients failing TWOC were managed by transurethral resection of the prostate (n = 22), long-term catheterisation (n = 15) or prostatic stents (n = 3), and 1 patient died prior to intervention. Three predictors were significant on multivariate analysis: PSA (>2.9 ng/ml), prostate size on DRE (large) and volume drained at time of catheterisation (>or=1,000 ml).
  
  
  CONCLUSIONS
  Patients with elevated PSA (>2.9 ng/ml), a large prostate size on DRE and a volume drained at time of catheterisation >1,000 ml are best managed by surgical intervention, while those with volumes drained at time of catheterisation of <1,000 ml, a PSA <or=2.9 ng/ml, and moderate to small prostate on DRE may be managed medically.
authors.affiliation: Department of Urology, Mercy University Hospital, University College Cork, Cork, Ireland.
authors.forename: Pádraig
authors.initials: P
authors.lastname: Daly
authors.forename: Stephen
authors.initials: S
authors.lastname: Connolly
authors.forename: Eamonn
authors.initials: E
authors.lastname: Rogers
authors.forename: Paul
authors.initials: P
authors.lastname: Sweeney
mesh_terms: D000208:Acute Disease; D000317:Adrenergic alpha-Antagonists / Q000627:therapeutic use; D000368:Aged; D000369:Aged, 80 and over; D004630:Emergencies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011470:Prostatic Hyperplasia / Q000150:complications / Q000601:surgery; D020728:Transurethral Resection of Prostate; D014546:Urinary Catheterization; D016055:Urinary Retention / Q000209:etiology / Q000628:therapy*; D014554:Urination
chemical_list: D000317:Adrenergic alpha-Antagonists