Background: The aim of the study was to evaluate prenatal and postpartal sonographic investigations to diagnose congenital uropathies.

Patients/methods: The Mainz birth defect monitoring system, the "Mainzer Model", was launched in 1990. Over a period of five years (1/90 to 1/95) 19,028 newborns underwent postpartal sonographic examination. Anamnestic data including prepartal sonographic examination were collected. According to a defined ultrasound criteria list, ultrasound findings were considered normal in 94.8% of the neonates, 4.4% were defined as requiring a follow-up examination and 0.8% were pathological. In the current study we analyzed patients with pathological findings with their pre- and postpartal sonographic investigations as well as their clinical data (urinary tract infections, operative procedures).

Results: In the study group prenatal ultrasonography showed evidence of severe anomalies only in 51 fetuses (32.9%). Surgical correction was required in 39 cases. 20 (51%) have been diagnosed prenatally. 28 patients presented with urinary tract infections. Out of this group only 11 patients have been detected by prenatal ultrasound.

Conclusion: In conclusion, postnatal ultrasound is more effective to diagnose anomalies of the urinary tract. To prevent complications i.e. urinary tract infections a neonatal screening program would be valuable.

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http://dx.doi.org/10.1055/s-2000-9609DOI Listing

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