title: Urodynamic responses to anal stretch in patients with detrusor sphincter dyssynergia.
abstract: OBJECTIVE
  To evaluate the urodynamic responses to anal stretch in patients with detrusor sphincter dyssynergia (DSD).
  
  
  METHODS
  Descriptive study.
  
  
  METHODS
  Rehabilitation hospital affiliated with a medical university.
  
  
  METHODS
  Patients (N=36) with suprasacral spinal cord injury who had DSD confirmed on cystometrography.
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  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.
authors.affiliation: Department of Physical Medicine & Rehabilitation, Chung Shan Medical University, Taichung City, Taiwan.
authors.forename: Yu-Hui
authors.initials: YH
authors.lastname: Huang
authors.forename: Sung-Lang
authors.initials: SL
authors.lastname: Chen
authors.forename: Su-Ju
authors.initials: SJ
authors.lastname: Tsai
authors.forename: Liu-Ing
authors.initials: LI
authors.lastname: Bih
authors.forename: Henry L
authors.initials: HL
authors.lastname: Lew