title: Applicability and reproducibility of condom catheter method for measuring isovolumetric bladder pressure.
abstract: OBJECTIVE
  To report on the applicability, reproducibility, and adverse events of the noninvasive condom catheter method in the first 730 subjects of a longitudinal survey of changes in urinary bladder contractility secondary to benign prostatic hyperplasia, in which 1300 men will be evaluated three times in 5 years using this method.
  
  
  METHODS
  Subjects were recruited by general practitioners, general publicity, and e-mail. Only those meeting the study criteria were entered in the study. If the free flow rate exceeded 5.4 mL/s, at least two consecutive condom pressure measurements were attempted using the condom catheter method. The condom pressure measured reflected the isovolumetric bladder pressure, a measure of urinary bladder contractility. The reproducibility of the method was quantified by a difference plot of the two maximal condom pressures measured in each subject.
  
  
  RESULTS
  In 618 (94%) of 659 eligible participants, one condom pressure measurement was completed; two measurements were done in 555 (84%). The maximal condom pressure ranged from 28 to 228 cm H2O (overall mean 101, SD 34). A difference between the two pressures of less than +/-21 cm H2O was found in 80%. The mean difference was -1 cm H2O (SD 18), significantly different from 0. Some adverse events such as terminal self-limiting hematuria were encountered.
  
  
  CONCLUSIONS
  The condom catheter method is very suitable for large-scale use. It has a success rate of 94% and a reproducibility comparable to that of invasive pressure flow studies.
authors.affiliation: Department ofUrology, Erasmus Medical Center, Rotterdam, The Netherlands.
authors.forename: J W N C
authors.initials: JW
authors.lastname: Huang Foen Chung
authors.forename: A M
authors.initials: AM
authors.lastname: Bohnen
authors.forename: J J M
authors.initials: JJ
authors.lastname: Pel
authors.forename: J L H R
authors.initials: JL
authors.lastname: Bosch
authors.forename: R
authors.initials: R
authors.lastname: Niesing
authors.forename: R
authors.initials: R
authors.lastname: van Mastrigt
mesh_terms: D017280:Condoms / Q000009:adverse effects; D004867:Equipment Design; D006417:Hematuria / Q000209:etiology; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008365:Manometry / Q000009:adverse effects / Q000295:instrumentation*; D009119:Muscle Contraction; D010146:Pain / Q000209:etiology; D018579:Patient Selection; D011312:Pressure; D011470:Prostatic Hyperplasia / Q000503:physiopathology*; D015203:Reproducibility of Results; D013575:Syncope / Q000209:etiology; D001743:Urinary Bladder / Q000503:physiopathology*; D014546:Urinary Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D014563:Urodynamics