Almost half of the children with vesicoureteral reflux have no history of culture proved urinary tract infection. Scarring may be associated with any reflux grade and it may be initially diagnosed at any age. Only half of the scars are noted with higher grades of reflux (IV and V). Continuous prophylaxis prevents new scarring. Breakthrough infections are rare but they can occur at ages greater than 7 years. Two consecutive negative cystograms are necessary before discontinuing prophylaxis. Children should be monitored after reimplantation for recurrent urinary tract infection.
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