[Febrile urinary tract infection in infants: diagnostic strategy]

F Dubos1, J Raymond

  • 1Université Lille Nord-de-France, UDSL, CHRU Lille, Urgences pédiatriques et maladies infectieuses et EA2694, Sante publique: épidémiologie et qualité des soins, 2, avenue Oscar Lambret, 59000 Lille, France. francois.dubos@chru-lille.fr

Insights

Diagnosing febrile urinary tract infections (UTIs) in young children is challenging. This review highlights clinical signs, urine collection methods, and rapid tests to improve accurate UTI diagnosis in children under two.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Diagnostic Medicine

Context:

  • Febrile urinary tract infections (UTIs) are common in young children, with prevalence varying by age and sex.
  • Accurate diagnosis is complicated by a lack of specific clinical signs beyond high fever.
  • Current diagnostic approaches require optimization to reduce contamination and improve accuracy.

Purpose:

  • To review the diagnostic utility of clinical signs and patient history in identifying UTIs in children under two.
  • To evaluate optimal urine collection techniques for pediatric patients.
  • To assess the performance of rapid diagnostic tests in confirming or excluding acute UTIs.

Summary:

  • Fever >39°C for 48h is the primary indicator, but other clinical or historical data offer limited diagnostic value for pediatric UTIs.
  • Appropriate urine collection methods are crucial to prevent contamination and ensure reliable results.
  • Rapid diagnostic tests, including dipstick urinalysis and microscopy, can aid in increasing or decreasing the probability of UTI.

Impact:

  • Improved diagnostic strategies for febrile UTIs in infants and young children.
  • Reduced misdiagnosis and delayed treatment of pediatric UTIs.
  • Enhanced clinical decision-making through better understanding of diagnostic test performance.

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