[Hydronephrosis in newborn infants].

During a 20-year period the author observed 40 newborn infants with congenital hydronephrosis. In 28 patients hydronephrosis of the normally developed kidney and in 12- of the abnormal organ was noted. Twelve patients were hospitalized for developmental anomalies that necessitated urgent surgical intervention, the diagnosis of hydronephrosis in them being established at autopsy. Twenty eight children were admitted to the clinic with symptoms of hydronephrosis. All children were operated upon, nephrectomy was performed in 18 cases, in the remainder-organ-preserving and corrective operative procedures were performed.