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  • Title: Utility of post-urinary tract infection imaging in patients with normal prenatal renal ultrasound.
    Author: Sasaki J, Parajuli N, Sharma P, Nanda M, Shah R, Gershel J, Rauch DA.
    Journal: Clin Pediatr (Phila); 2012 Mar; 51(3):244-6. PubMed ID: 21890838.
    Abstract:
    The American Academy of Pediatrics recommends renal ultrasound (RUS) and voiding cystourethrography (VCUG) for all infants after a first urinary tract infection (UTI). However, many congenital renal anomalies are identified by a prenatal US. At the present time, there are no data regarding the yield of post-UTI imaging among infants who have a documented normal prenatal US. We retrospectively reviewed the charts of all patients <1 year of age with a first UTI who had normal kidneys noted on prenatal US to determine the frequency of abnormal findings. Abnormal RUS and VCUG results were noted in 5.1% (24 of 471) and 20.4% (75 of 368) of infants, respectively. While the abnormal US rate is significantly less than what has been previously reported, the frequency of abnormal VCUGs is similar. These results suggest that a post-UTI RUS may not be needed if the prenatal US was normal. However, a VCUG continues to be indicated.
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