title: Morbidity of the evaluation of the lower urinary tract with transurethral multichannel pressure-flow studies.
abstract: OBJECTIVE
  The aim of this prospective study was to determine morbidity and complication rate of invasive urodynamic evaluation of the lower urinary tract after transurethral multichannel pressure-flow studies.
  
  
  METHODS
  The study included 63 men with the clinical diagnosis of benign prostatic hyperplasia and 56 women with stress urinary incontinence. All patients underwent routine pressure-flow study as part of the urodynamic evaluation. A week later the patients returned for followup which also included a detailed interview on post-evaluation morbidity.
  
  
  RESULTS
  The overall complication rate, including urinary retention, gross hematuria, urinary tract infection and fever, was 19.0% (12 of 63) for men and 1.8% (1 of 56) for women. In men there was no statistically significant correlation between post-void residual urine or age and complication rate (p > 0.05). Of the men 4.8% experienced post-investigational urinary retention and all of them had significant bladder outflow obstruction. In addition, obstructed men reported a higher incidence of dysuria and pain (76.2%, 32 of 42) compared to those without obstruction (57.1%, 12 of 21), whereas only 53.6% of women reported these complaints. Of the 63 men 4 (6.2%) had significant urinary tract infections, while only 1 woman (1.8%) had infections.
  
  
  CONCLUSIONS
  Invasive urodynamic investigation is associated with a considerable rate of complications and morbidity, particularly in men with infravesical obstruction. These facts must be considered and discussed with the patient before urodynamic testing.
authors.affiliation: Department of Urology, University of Vienna, Austria.
authors.forename: H C
authors.initials: HC
authors.lastname: Klingler
authors.forename: S
authors.initials: S
authors.lastname: Madersbacher
authors.forename: B
authors.initials: B
authors.lastname: Djavan
authors.forename: G
authors.initials: G
authors.lastname: Schatzl
authors.forename: M
authors.initials: M
authors.lastname: Marberger
authors.forename: C P
authors.initials: CP
authors.lastname: Schmidbauer
mesh_terms: D000328:Adult; D000368:Aged; D004927:Escherichia coli Infections / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011312:Pressure; D011446:Prospective Studies; D011470:Prostatic Hyperplasia / Q000503:physiopathology*; D012737:Sex Factors; D014546:Urinary Catheterization / Q000009:adverse effects*; D014550:Urinary Incontinence, Stress / Q000503:physiopathology*; D016055:Urinary Retention / Q000209:etiology*; D014552:Urinary Tract Infections / Q000209:etiology*; D014556:Urine; D014563:Urodynamics