Staphylococcus aureus urinary tract infections in children are associated with urinary tract abnormalities and

Orli Megged1

  • 1Pediatric Department and Infectious Diseases Unit, Shaare Zedek Medical Center Affiliated with Hebrew University-Hadassah School of Medicine, Jerusalem, Israel, orlimegged@yahoo.com.

Insights

Staphylococcus aureus urinary tract infections (UTIs) in children are rare but associated with significantly higher rates of urinary tract abnormalities. Prompt investigation for structural anomalies is crucial when S. aureus UTI is diagnosed.

Area of Science:

  • Pediatric Nephrology
  • Pediatric Infectious Diseases
  • Urology

Background:

  • Staphylococcus aureus is an infrequent cause of pediatric urinary tract infections (UTIs).
  • Limited data exists on urinary tract malformations in children experiencing S. aureus UTIs.

Purpose of the Study:

  • To investigate the prevalence of urinary tract malformations in children diagnosed with S. aureus UTI.
  • To compare the clinical characteristics and outcomes of S. aureus UTIs with those caused by Escherichia coli in pediatric patients.

Main Methods:

  • Retrospective review of medical records for children (0-16 years) with S. aureus UTI from 2001-2013.
  • Inclusion of children with Escherichia coli UTI as controls for comparison.
  • Analysis of demographic, clinical, and laboratory data, including imaging and voiding cystourethrogram findings.

Main Results:

  • S. aureus caused UTI in 26 children, with six cases of bacteremia.
  • Children with S. aureus UTI showed significantly higher rates of abnormal ultrasound findings (77% vs. 22%) compared to E. coli UTI.
  • Abnormal voiding cystourethrogram (53% vs. 23%) and vesicoureteral reflux (50% vs. 23%) were more frequent in the S. aureus group.
  • Hospitalization duration was longer for S. aureus UTI patients (median 8 days vs. 2.3 days).

Conclusions:

  • Staphylococcus aureus represents an uncommon urinary pathogen in pediatric populations.
  • A diagnosis of S. aureus UTI in children warrants a comprehensive evaluation for underlying urinary tract abnormalities.
Abstract

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