Effect of Time Interval and Overdistension on Repeated Urodynamic Studies

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Abstract
Repeated urodynamic testing of the lower urinary tract is often needed both clinically and experimentally. The objective of this study is to find out the time interval needed if repeated urodynamic tests are required even if overdistension occurs initially. Three hundred forty urodynamic studies were performed using five female rhesus monkeys (Macaca mulatta). Two groups of experiments (with or without bladder overdistension) were performed at the following time intervals: immediate, 15, 30 and 45 minutes after the initial urodynamic study. All urodynamic parameters (pressure, capacity, compliance and detrusor strength) were reproducible after a 30-minute waiting period. In case of overdistension, a 45-minute period is required.

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