[Urodynamic study of the lower urinary tract in children today].

The urodynamic study of the lower urinary tract is the only investigation that permits an evaluation of the vesico-sphincter function. On the ground of the personal experience of 3262 urodynamic study on 1221 children, the authors are reviewed the methods, indications, limits and pitfalls of urodynamics and synchronous video-flow-cystourethrography. Indications in the personal experience are: neuropathic bladder; non neuropathic vesico-urethral dysfunction; urinary incontinence; intravesical obstruction; recurrent cystitis; vesico-uretero-renal reflux and obstructive megaureter; nocturnal enuresis. Informations given by urodynamics in these pathologic conditions are very important for the diagnosis, prognosis and therapy. The urodynamic study is a very reliable and useful method, also in pediatric age, if correctly performed by expert investigators.