[Vesico-ureteral reflux (VUR) and renal size in children (author's transl)]

We analyzed the radiographic renal size of 180 children with vesico-ureteral reflux as compared with that of 159 normal children. We measured on urogram the vertebral length, renal length and thickness of the renal cortex. Further, the ratio of the renal length to the vertebral length and the cortical thickness to the renal length were computed. The latter was named the cortical ratio.

1. The cortical ratio is the most useful parameter in analysis of the renal size. 2. Cortical damage due to VUR is noted already in newborns. This result suggests that vesico-ureteral reflux must be detected and treated in early childhood.