title: Prevalence of renal anomalies after urinary tract infections in hospitalized infants less than 2 months of age.
abstract: OBJECTIVE
  Our aim was to determine the incidence of anatomical abnormalities after a urinary tract infection (UTI) in infants <2 months of age hospitalized in the neonatal intensive care unit (NICU).
  
  
  METHODS
  This was a retrospective, single-center cohort study of infants <2 months of age in the NICU with a UTI and documented renal imaging.
  
  
  RESULTS
  We identified 141 infants with UTIs. The mean gestational age and birth weight were 28 weeks and 1254 g, respectively. The most commonly identified pathogen was coagulase-negative Staphylococcus (28%, 44 of 156). A major abnormality was found on at least one imaging study for 4% (5 of 118) of infants. Major abnormalities were noted on 4% (5 of 114) of renal ultrasounds and 2% (2 of 82) of voiding cystourethrography examinations.
  
  
  CONCLUSIONS
  Among infants in the NICU <2 months of age at the time of a UTI, the prevalence of major anatomical abnormalities is <5%.
authors.affiliation: Duke University School of Medicine, Durham, NC, USA.
authors.forename: L
authors.initials: L
authors.lastname: Nowell
authors.forename: C
authors.initials: C
authors.lastname: Moran
authors.forename: P B
authors.initials: PB
authors.lastname: Smith
authors.forename: P
authors.initials: P
authors.lastname: Seed
authors.forename: B D
authors.initials: BD
authors.lastname: Alexander
authors.forename: C M
authors.initials: CM
authors.lastname: Cotten
authors.forename: J S
authors.initials: JS
authors.lastname: Wiener
authors.forename: D K
authors.initials: DK
authors.lastname: Benjamin
mesh_terms: D000046:Academic Medical Centers / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000453:epidemiology*; D007223:Infant; D007231:Infant, Newborn; D007363:Intensive Care Units, Neonatal / Q000706:statistics & numerical data; D008297:Male; D009657:North Carolina / Q000453:epidemiology; D015995:Prevalence; D014463:Ultrasonography; D014552:Urinary Tract Infections / Q000150:complications*; D014564:Urogenital Abnormalities / Q000150:complications* / Q000000981:diagnostic imaging / Q000453:epidemiology*