[Urodynamic examination of prostatic adenoma. For what purpose?]

In order to demonstrate that the quality of the functional result after surgery for prostatic adenoma depends on the initial urodynamic equilibrium, the authors performed preoperative cystomanometry and urethral pressure profile, in addition to the standard assessment, in 115 patients. Only vesical acontractility clearly appeared to be a factor of residual dysuria, as it multiplied the risk by a factor of 3. In contrast, the values for the urethral pressure profile did not have any predictive value on incontinence, probably because they were modified by the operation. However, and understanding of the vesico-sphincteric equilibrium can lead to a modification of the therapeutic indications in certain circumstances in which this equilibrium appears to be particularly precarious.