The incidence of urinary tract malformations in congenital heart disease.

A statistically significant number of congenital heart disease patients were evaluated for urinary tract anomalies. Twelve percent (160 cases among 1340 patients) had such associated anomalies. However, no association between a specific congenital heart disease and a particular urinary tract anomaly could be found. The results were very similar to those reported in clinical series, but slightly higher than those found at autopsy. The percentage of urinary tract malformations varied over a wide range, with some congenital heart disease having a much higher association than others. However, the total average incidence of urinary tract malformation was similar to that of the general population.