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Published on: August 28, 2020
Urodynamic responses to anal stretch in patients with detrusor sphincter dyssynergia
Yu-Hui Huang1, Sung-Lang Chen, Su-Ju Tsai
1Department of Physical Medicine & Rehabilitation, Chung Shan Medical University, Taichung City, Taiwan.
Objective:
To evaluate the urodynamic responses to anal stretch in patients with detrusor sphincter dyssynergia (DSD).
Design:
Descriptive study.
Setting:
Rehabilitation hospital affiliated with a medical university.
Participants:
Patients (N=36) with suprasacral spinal cord injury who had DSD confirmed on cystometrography.
Interventions:
Not applicable.
Main Outcome Measures:
Detrusor pressure, urethral pressure, and summated electromyogram of external urethral sphincter on cystometrography.
Results:
The urodynamic responses to anal stretch were evaluated in the first half (time 1, 1-15s) and the second half (time 2, 16-30s) of the evaluation time period. The activity of external urethral sphincter was reduced significantly in both times 1 and 2 (P<0.5). The medians of reduction percentages were 33% and 35% for times 1 and 2, respectively. The change of detrusor pressure was not significant in either time 1 or time 2.
Conclusions:
Anal stretch can reduce the activity of external urethral sphincter without significant change in detrusor pressure.
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