Renal growth following treatment of vesicoureteral reflux

Choi, Hak Ruong; Han, Sang Won; Choi, Seung Kang

Abstract

We reviewed 31 primary vesicoureteral reflux patients (55 renal units) to investigate renal growth and influencing Factors following treatment. The mean age was 3.8 years aged 24 patients have a bilateral disease. 22 patients (40 renal units) underwent antireflux surgery and the remained 9 patients(15 renal units) were cured after conservative treatment. Before and after treatment, renal size difference according to L1-L3 vertebral length (DORG ; degree of renal growth) were measured as a value of renal growth, Age, grade of reflux, relative renal function, initial renal size, degree of renal scar, method of treatment and child unilaterality or bilaterality were compared with DORG. The possible correlations between these factors were evaluated with statistical analysis. After treatment of VURs, 14 renal units (25%) were accelerated, 16 renal units (29.5%) were unchanged and 25 renal units (45.5%) were retarded in renal growth. The DORG were inversely correlated to renal size before treatment and degree of renal scar. The other factors did not influence to DORG. In conclusion, small and less scarred reflux kidneys tend to have a favorable renal growth after treatment.