Figure 822

Resolution of vesicoureteral reflux (VUR) detected postnatally after urinary tract infection at follow-up examinations over 5 years. Mild to moderate VUR spontaneously resolves in a significant percentage of children, whereas high-grade reflux resolves only rarely. The Southwest Pediatric Nephrology Study Group (SWPNSG) found that grades I and II VUR resolved in 80% of children with refluxing ureters at follow-up examinations over 5 years. In the Birmingham Reflux Study Group (BRSG), International Reflux Study in Children (IRSC), and SWPNSG investigations of high-grade VUR (grades III to V) in children, improvement in reflux severity was seen in 30% to 40% of affected ureters. Spontaneous resolution was rare and occurred in only 16% to 17% of children with refluxing ureters at follow-up examinations over 5 years [20,37,38].

Months follow-up
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