title: Leak point pressures in women with urinary stress incontinence: correlation with patient history.
abstract: OBJECTIVE
  We examined the relationship between historical factors in women with urinary stress incontinence and the Valsalva leak point pressure.
  
  
  METHODS
  Valsalva leak point pressure measurements in 57 women with urinary stress incontinence were compared to findings in the history.
  
  
  RESULTS
  Valsalva leak point pressure was low in 83% of women with severe leakage and previous surgery. Interestingly, 47% of patients without predisposing factors had low Valsalva leak point pressures.
  
  
  CONCLUSIONS
  Women with severe leakage and previous bladder neck surgery are likely to have urethral dysfunction as demonstrated by Valsalva leak point pressure testing. A significant incidence of low Valsalva leak point pressures in patients without predisposing factors could account for many failures of routine suspension procedures.
authors.affiliation: Division of Urology, St. Louis University School of Medicine, Missouri, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Cummings
authors.forename: J A
authors.initials: JA
authors.lastname: Boullier
authors.forename: R O
authors.initials: RO
authors.lastname: Parra
authors.forename: J
authors.initials: J
authors.lastname: Wozniak-Petrofsky
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008875:Middle Aged; D011312:Pressure; D014550:Urinary Incontinence, Stress / Q000503:physiopathology*; D014563:Urodynamics