Normal Preoperative Urodynamic Testing Does Not Predict Voiding Dysfunction After Burch Colposuspension Versus Pubovaginal Sling

Purpose: Urodynamic studies have been proposed as a means of identifying patients at risk for voiding dysfunction after surgery for stress urinary incontinence. We determined if preoperative urodynamic findings predict postoperative voiding dysfunction after pubovaginal sling or Burch colposuspension.Materials and Methods: Data were analyzed from preoperative, standardized urodynamic studies performed on participants in the Stress Incontinence Treatment Efficacy Trial, in which women with stress urinary incontinence were randomized to undergo pubovaginal sling surgery or Burch colposuspension. Voiding dysfunction was defined as use of any bladder catheter after 6 weeks, or reoperation for takedown of a pubovaginal sling or Burch colposuspension. Urodynamic study parameters examined were post-void residual urine, maximum flow during noninvasive flowmetry, maximum flow during pressure flow study, change in vesical pressure at maximum flow during pressure flow study, change in abdominal pressure at maximum f...