Figure 823

Resolution of grades III to V vesicoureteral reflux (VUR) detected postnatally after urinary tract infection: bilateral versus unilateral VUR. Spontaneous resolution of high-grade VUR is much more likely to occur in unilateral reflux. The International Reflux Study in Children (IRSC) showed that grades III to V VUR resolved in children in whom both kidneys were affected nearly five times as often (39%) as in those in whom VUR was bilateral (8%). In bilateral VUR, spontaneous resolution did not occur after 2 years of observation [38].

Vesicoureteral reflux grade

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