[Management and treatment of uropathies detected in utero. Evaluation of 8 years' experience].

Over an 8 year period, the antenatal diagnosis of uropathy was made in 125 fetuses, but confirmed in only 22%; in the other cases, it was inadequate (50%) or wrong (28%). It was only in a few cases that surgery was any use in the first days of life (sectioning urethral valves, and temporary nephrostomy); in most cases, surgery was carried out between 1 and 3 months of age: total or partial nephrectomy (mainly for multicystic dysplasia and ureteral duplication with a ureterocele or ectopia), and usually conservative surgery (resection of the pyelo-ureteral junction, uretero-vesical implantation because of reflux or mega-ureter). The long-term results depend upon the degree of renal dysplasia: the prognosis was good in all cases of hydronephrosis that were operated on, but it is often poor when uropathies are characterized by early obstructive phenomena in intra-uterine life as occurs with urethral valves. In those cases, renal insufficiency cannot always be prevented by neonatal surgery.