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Updated: Jul 5, 2026

Vessel-sparing Excision and Primary Anastomosis
Published on: January 7, 2019
[Current status of antibiotic prophylaxis in primary vesicoureteral reflux in children]
Gloria Ma Fraga Rodríguez1, Joaquín Escribano Subias, Esther Benito Acin
1Unidad de Nefrología Pediátrica, Hospital de la Santa Creu i Sant Pau, Universidad Autónoma de Barcelona, Barcelona, España. gfraga@santpau.es
Insights
Antibiotic prophylaxis does not show proven benefits in preventing urinary infections or kidney damage in children with primary vesicoureteral reflux (VUR) grades I to III. More research is needed to establish clear recommendations for VUR management.
Area of Science:
- Pediatric Nephrology
- Infectious Diseases
- Clinical Trials Methodology
Context:
- Primary vesicoureteral reflux (VUR) is a condition in children that can lead to urinary tract infections and renal damage.
- The use of antibiotic prophylaxis is a common strategy to prevent these complications.
Purpose:
- To evaluate the effectiveness of antibiotic prophylaxis in preventing urinary infections and renal parenchymal damage in pediatric patients with primary VUR.
Summary:
- A systematic review of clinical trials and meta-analyses was conducted. While some studies suggested a reduced risk of urinary infection with antibiotics, the overall quality of evidence was insufficient.
- Two randomized controlled trials in children with VUR grades I-III found no significant difference in urinary infection or renal damage rates between those receiving prophylaxis and those not.
Impact:
- Current evidence does not support the routine use of antibiotics for preventing urinary infections in children with VUR grades I-III.
- Further high-quality trials are necessary to determine appropriate prophylactic strategies for children with VUR, especially for high-grade reflux.
Objectives:
To assess the efficacy of antibiotic prophylaxis for prevention of urinary infections and renal parenchymal damage in children with primary vesicoureteral reflux (VUR).
Methods/Results:
A search based on MEDLINE and The Cochrane Library was performed selecting those clinical trials and meta-analysis which compared antibiotic prophylaxis (either continuous or intermittent) and placebo or no treatment at all in children with primary VUR. Three systematic reviews were chosen for assessing the efficacy of prophylaxis of urinary infections including trials with a predominant paediatric population without known VUR. Results showed that the use of antibiotics decreased the risk of urinary infection. The quality of the trials was, however, insufficient and therefore of questionable results. We also selected two randomized controlled trials in children with reflux: one had limited information as the degree of reflux was not stated; the second assessed the results in a population of 113 children with VUR grade I to III (55 receiving prophylaxis and 58 not) following acute pyelonephritis. There were no differences with regard to the risk of urinary infection or the risk of renal parenchymal damage.
Conclusions:
There is not enough evidence supporting generalized use of antibiotics to prevent urinary infections. No benefit in prophylaxis has been proven for VUR grades I to III. There is no data for high grade VUR. It will be necessary to perform more trials in order to establish more accurate recommendations on prevention of urinary infections in the presence of VUR.
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