title: Urethral pressure profilometry with membrane catheter compared with perfusion catheter systems.
abstract: Urodynamic evaluation of urethral sphincter function can be carried out by constant carbon dioxide perfusion, constant water perfusion, or by the use of membrane catheters. A comparison of these 3 techniques was made in in vitro experiments. Results, and advantages and disadvantages of each technique are discussed. From all factors considered in this study--response to pressure changes, sensitivity to pressures along the urethra, and reproducibility of the profile--the membrane catheter was concluded to be superior to either of the perfusion systems.
mesh_terms: D000818:Animals; D002245:Carbon Dioxide; D004285:Dogs; D008297:Male; D008566:Membranes; D009132:Muscles / Q000502:physiology; D010477:Perfusion; D011312:Pressure; D014521:Urethra / Q000502:physiology*; D014546:Urinary Catheterization; D014563:Urodynamics; D014867:Water
chemical_list: D014867:Water; D002245:Carbon Dioxide