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Updated: May 16, 2026

Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis
Published on: July 18, 2017
[E. coli acute pyelonephritis: prophylaxis]
P Minodier1, J Bréaud, E Bérard
1Urgences enfants, CHU Nord, Chemin des Bourrelly, 13015 Marseille, France. philippe.minodier@ap-hm.fr
Insights
Preventing recurrent urinary tract infections (UTIs) in children aims to avoid kidney scarring. Current evidence does not support routine antibiotic use, with concerns about antibiotic resistance and side effects.
Area of Science:
- Pediatric Nephrology
- Infectious Diseases
- Urology
Context:
- Recurrent urinary tract infections (UTIs) in children pose a risk for long-term renal complications.
- Establishing effective prevention strategies is crucial to mitigate sequelae like hypertension and end-stage renal failure.
Purpose:
- To evaluate the effectiveness of current strategies for preventing recurrent UTIs in children.
- To analyze the evidence regarding antibioprophylaxis, alternative measures, and surgical interventions.
Summary:
- A recent meta-analysis found no benefit of antibiotic prophylaxis for febrile UTIs in infants, irrespective of vesicoureteral reflux.
- Concerns exist regarding adverse events and the promotion of antibiotic resistance (e.g., extended-spectrum beta-lactamases) with long-term antibiotic use.
- Alternative preventive measures like cranberries, pre/probiotics are inconclusive; surgery is indicated for specific uropathies; dysfunctional elimination syndrome requires treatment.
Impact:
- Current evidence challenges the routine use of antibioprophylaxis in pediatric recurrent UTIs.
- Highlights the need for individualized treatment decisions in consultation with specialists.
- Emphasizes the importance of addressing dysfunctional elimination syndrome as a key factor in management.
Abstract:
The aim of the prevention of recurrent urinary tract infections in children is to reduce renal scarring, that is associated with hypertension or end-stage renal failure decades latter. However, heterogeneity of the studies prevents clear recommendations. Recent American Academy of Pediatrics meta-analysis failed to demonstrate any effectiveness of antibioprophylaxis in the prevention of recurrent febrile urinary tract infections in infants less than 2 years of age, whatever the presence or the grade of vesicoureteral reflux. Moreover, adverse events of cotrimoxazole, which is the sole antibioprophylaxis available in France, are questionable. Long term low doses of oral cephalosporins or cotrimoxazole are known to select resistant enterobacteriae, producing extended-spectrum beta-lactamases (ESBL) especially. To date, antibioprophylaxis should be discussed with urologists depending on the patient. Other preventive measures as cranberries or pre/ probiotics, are inconclusive. Surgery (or circumcision) depends on the associated uropathy. Dysfunctional elimination syndrome is frequent and has to be recognized and treated.
Related Concept Videos
Acute Pyelonephritis II: Diagnostic Studies and Management
Acute Pyelonephritis I: Introduction
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
Urinary Tract Infection II: Pathophysiology
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Urinary Tract Infection IV: Nursing Management

