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  • Title: Urethral pressure profilometry with membrane catheter compared with perfusion catheter systems.
    Author: Schmidt RA, Witherow R, van Gool JD, Tanagho EA.
    Journal: Urol Int; 1978; 33(5):345-54. PubMed ID: 705985.
    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.
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