Micturitional Static Urethral Pressure Profile: A Method of Recording Urethral Pressure Profile During Voiding and the Implications

Publisher Website
Google Scholar
Abstract
Using a tri-lumen graduated 10F catheter an attempt was made to record static (lateral) pressures at successive points in the urethra, synchronous with intravesical pressure recorded during voiding. Based on the essential physical principles described by earlier investigators, numerous studies were attempted in a predominantly male population, which included normal male and female subjects and male subjects with bladder outlet obstruction of varied etiology. An evaluation of the Valsalva maneuver was attempted, augmenting the detrusor contraction and artificial distal obstruction (penile compression) on the micturitional static urethral pressure profiles. Studies were performed to compare the static urethral pressure profiles obtained with the anterograde (catheter withdrawal) and the retrograde (catheter insertion during voiding) techniques. These studies have helped in understanding the various factors, such as double obstructions, artifactual catheter obstructions and incompetent distal sphincter mechanisms, in the interpretation of the micturitional static urethral pressure profile.