Background: Guidelines recommend obtaining a renal ultrasonogram (RUS) for young children after a first urinary tract infection (UTI).
Objective: The aim of the current study was to assess the concordance of prenatal and post-UTI RUS findings in children with a first simple UTI.
Methods: This was a prospective study and included all children aged 5 years or younger who were hospitalised with a first simple UTI (determined as clinical response and normalisation of temperature within 48 h on initiation of antibacterial therapy with no complications).