[Enuresis and common bladder disorders in children].

Enuresis affects 5 to 10% of primary-school age children. Nocturnal enuresis, or bedwetting, is often familial and boys are mainly concerned; daytime micturitions are normal, without urine loss or urinary tract infection. Hygienic rules associated with desmopressin or, in some cases, tricyclic antidepressant agents, alarm procedures or psychotherapy, result in a 70% success rate after 1 year. Bladder instability consists of diurnal and nocturnal disturbances, mainly in girls with recurrent urinary tract infections; affected children experience pollakiuria, urine loss and voiding emergencies. Urodynamic assessment of daytime enuresis is of major interest, mainly when dysuria is present. The treatment of non complicated bladder instability needs reeducation, i.e. biofeedback and/or administration of oxybutynin chlorhydrate.