Are prophylactic antibiotics indicated after a urinary tract infection?
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1Pediatric Nephrology and Hypertension, Children's Hospital of Michigan, 3901 Beaubien Boulevard, Detroit, MI 48201, USA. tmattoo@med.wayne.edu
Insights
Antibiotic prophylaxis for children with urinary tract infections (UTIs) is being questioned. Recent studies suggest it may not prevent kidney damage, highlighting the need for more research.
Area of Science:
- Pediatric Nephrology
- Infectious Diseases
- Clinical Pharmacology
Background:
- Antibiotic prophylaxis is common for children with urinary tract infections (UTIs) and vesicoureteral reflux (VUR) to prevent kidney damage.
- Current recommendations are largely opinion-based and predate advanced renal imaging techniques.
Purpose of the Study:
- To review current recommendations for antibiotic prophylaxis in children with UTIs in light of recent research.
- To discuss the evolving understanding of UTI, VUR, and their management.
Main Methods:
- Systematic review of published literature on UTI and VUR.
- Analysis of studies comparing antibiotic prophylaxis versus no prophylaxis in children with VUR.
- Consideration of ongoing research, such as the RIVUR study.
Main Results:
- Recent studies cast doubt on the efficacy of antibiotic prophylaxis in preventing renal scarring.
- Evidence suggests renal scarring can occur independently of UTI.
- Well-designed studies are needed to clarify the role of prophylaxis across different clinical scenarios.
Conclusions:
- Urinary tract infection in young children remains a risk factor for renal scarring.
- Individual patient management and prudence are advised pending further research.
- The RIVUR study aims to provide more definitive evidence on antibiotic prophylaxis for VUR.
Purpose Of Review:
Many children with urinary tract infection (UTI) and urinary tract abnormality such as vesicoureteral reflux (VUR) are given prophylactic antibiotic to prevent recurrence of UTI and permanent kidney damage. Occasionally, children with normal urinary tract receive prophylactic antibiotic to alleviate the patient suffering and family inconvenience associated with recurrent symptomatic UTI. These recommendations are mostly opinion-based and are derived from studies that were not randomized and were done before the current renal imaging modalities became available. The purpose of this review is to discuss these recommendations in the context of recent research findings.
Recent Findings:
Recent studies have raised serious doubts about the role of antibiotic prophylaxis after UTI by demonstrating the presence of preexisting renal scars without UTI in some patients, systematic reviews of published literature on UTI and VUR, and by comparing randomized patients with VUR who received antibiotic prophylaxis with those who did not receive any prophylaxis. However, the new knowledge has also highlighted that,apart from skillful management of individual patients, well designed studies are needed to answer the questions on antibiotic prophylaxis across the spectrum of UTI in different clinical situations. One such study currently underway is the Randomized Intervention for Children With Vesicoureteral Reflux (RIVUR) study, which will evaluate the role of antibiotic prophylaxis in preventing recurrent UTI and renal scarring in young children with VUR.
Summary:
It is advisable that, until the results of more appropriately designed studies become available, UTI in young children is considered as a risk factor for renal scarring and each patient is treated with prudence.
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