title: Relation of postvoid residual to urinary tract infection during stroke rehabilitation.
abstract: OBJECTIVE
  To examine (1) risk factors for urinary tract infection (UTI) during stroke rehabilitation and (2) the relation of postvoid residual (PVR) to the frequency of UTI.
  
  
  METHODS
  Prospective case series.
  
  
  METHODS
  Academic specialty stroke rehabilitation service.
  
  
  METHODS
  One hundred one consecutive admissions for stroke rehabilitation.
  
  
  METHODS
  Not applicable. Main outcome measure Presence or absence of UTI.
  
  
  RESULTS
  Previously undiagnosed UTI was found in 28 of 101 subjects. Two or more PVR determinations of 150mL or more were an independent risk factor for UTI. In multivariate analysis, factors associated with increased risk of UTI included only use of beta-blockers and 2 peak PVR determinations of 150mL or more. Single determinations were not significant.
  
  
  CONCLUSIONS
  The optimal PVR for initiating bladder catheterization during stroke rehabilitation remains unknown, but the risk of UTI increases only when 2 or more ultrasound PVR readings are more than 150mL.
mesh_terms: D000368:Aged; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D011446:Prospective Studies; D012307:Risk Factors; D020521:Stroke / Q000150:complications*; D000071939:Stroke Rehabilitation; D014463:Ultrasonography; D001750:Urinary Bladder, Neurogenic / Q000000981:diagnostic imaging / Q000209:etiology*; D014546:Urinary Catheterization; D016055:Urinary Retention / Q000000981:diagnostic imaging / Q000209:etiology*; D014552:Urinary Tract Infections / Q000000981:diagnostic imaging / Q000209:etiology*