[Vesical instability and reflux: frequent pathogenic association].

Of 175 children from 4 to 15 years with reflux, 62 (35%) have uninhibited bladder associated. In the association, the reflux is frequently bilateral and grade 2. Uninhibited bladder contractions may predispose to vesico-ureteral reflux when the orifice is abnormal. So some reflux would appear only continence age just as incoordination between bladder and urinary sphincter can produce pathophysiologically significant obstruction. The anticholinergics drugs don't improve few reflux evolution and may even emphasize. The uninhibited bladder pathology has no effect anatomical reimplantation quality but decrease often functional results: remnants mictionary disorders and lower recurrent infections.