Evaluation of Stress Predominant Urinary Incontinence

Urodynamic studies (UDS) have been used to objectively characterize a patient's complaint of urinary incontinence. Presumably, the clinician can utilize the UDS data to guide treatment options. It is even hoped that UDS can help predict which treatments should be utilized to produce the most effective outcomes. However, is this currently the case? The Urinary Incontinence Treatment Network (UITN) has completed four large randomized clinical trials related to treatments for urinary incontinence. Two trials compared outcomes of different surgeries for stress urinary incontinence (SUI) in which standardized UDS protocols were used. Secondary analyses of these UDS data showed that UDS were neither prognostic of treatment outcomes nor correlative with severity of UI symptoms, suggesting limited utility of UDS in the evaluation and management of the uncomplicated SUI patient. A third trial was designed to answer whether a basic office examination is not noninferior to UDS in affecting SUI surgical outcomes. The results of this study are currently in press. A fourth trial examined treatment of urgency urinary incontinence (UUI). Because UDS was not part of this trial, the utility of UDS in management and treatment of UUI could not be assessed. In summary, UDS will need to undergo further refinements to increase its clinical effectiveness in the area of urinary incontinence.