[Consequences from prenatal sonography of urinary tract abnormalities].

At the Gynaecologic Clinic of the University of Milan/Italy from 1979-1983, pathological changes of the urinary tract were diagnosed in 55 foeti on the occasion of routine sonography of pregnants. In 23 children prenatal diagnosis was confirmed. 5 neonates had another disease than the disease of the urinary tract assumed during the prenatal period. In 19 neonates the first diagnosis had to be rescinded because of a second examination showing normal findings. 8 neonates could not be examined a second time. Advantages of an intrauterine diversion of urine could not be verified. Therefore, the following diagnostic and therapeutic consequences from the prenatal examination by sonography are recommended: Immediate check and analysis of prenatal findings in the neonatal period by further examinations. Short-term checks to clarify indication for operation. Avoidance of early complications and other kidney changes by early therapy.