title: Utility of post-urinary tract infection imaging in patients with normal prenatal renal ultrasound.
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.
authors: Elmhurst Hospital Center, Elmhurst, NY, USA. junsasaki41@gmail.com
authors: Jun
authors: J
authors: Sasaki
authors: Nirmala
authors: N
authors: Parajuli
authors: Preeti
authors: P
authors: Sharma
authors: Maya
authors: M
authors: Nanda
authors: Rina
authors: R
authors: Shah
authors: Jeffrey
authors: J
authors: Gershel
authors: Daniel A
authors: DA
authors: Rauch
mesh_terms: D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000150:complications / Q000000981:diagnostic imaging*; D007223:Infant; D007231:Infant, Newborn; D007668:Kidney / Q000002:abnormalities / Q000000981:diagnostic imaging*; D008297:Male; D011247:Pregnancy; D011859:Radiography; D012189:Retrospective Studies; D016216:Ultrasonography, Prenatal; D014513:Ureter / Q000002:abnormalities / Q000000981:diagnostic imaging; D014552:Urinary Tract Infections / Q000000981:diagnostic imaging / Q000209:etiology*; D014718:Vesico-Ureteral Reflux / Q000150:complications / Q000000981:diagnostic imaging*