EARLY DETECTION OF BLADDER DYSFUNCTION FOLLOWING POSTERIOR URETHRAL VALVES ABLATION

Urinary incontinence following Posterior Urethral Valves (PUV) ablatio n has been attributed in the past to sphincter injury but it is nowada ys accepted that bladder dysfunction (ED) plays a determinant role. In order to assess ED evolution, we have evaluated, from 1982 to 1994, 4 8 boys with PW by urodynamics (UD) studies. Age of the patients ranged from 10 months to 15 gears. A total of 65 examinations were performed . We considered four groups. 0-3 gears; 4-7 years; 8-12 years and > 12 years. Uninhibited detrusor contractions (instability), end filling p ressure (EFP), bladder capacity and voiding detrusor pressure were eva luated in order to assess the presence of ED distinguishing it in: hyp ercontractility, hypocontractility and low-compliant bladder. The resu lts collected confirm a high percentage of ED in PW bogs (71 %) and th e evolution of hypercontractility versus hypercontractility in 60% of patients considered.