Lee T, et al. - Guidelines issued by the American Academy of Pediatrics in 2011 recommended against using routine voiding cystourethrograms in children aged 2 to 24 months who present with febrile urinary tract infection, and instead, recommended obtaining a renal ultrasonographic image and reserving voiding cystourethrographic testing for specific circumstances. Researchers here examined how these guidelines influenced diagnosis patterns among children with underlying vesicoureteral reflux and the detection rates of vesicoureteral reflux per screening voiding cystourethrogram performed for all children. Children with vesicoureteral reflux are expected to exhibit an improvement in the detection rates of vesicoureteral reflux at the expense of delayed diagnoses.