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Controversies in the management of vesicoureteral reflux: the rationale for the RIVUR study
Ranjiv Mathews1, Myra Carpenter, Russell Chesney
1Division of Pediatric Urology, The Johns Hopkins School of Medicine, Baltimore, MD 21287, USA. rmathew1@jhmi.edu
Insights
Antibiotic prophylaxis may not prevent urinary tract infections (UTIs) or renal scarring in children with vesicoureteral reflux (VUR). Further research is needed to determine the benefits of VUR identification and management.
Area of Science:
- Pediatric Nephrology
- Urology
Background:
- Current management of vesicoureteral reflux (VUR) prioritizes UTI prevention via prophylactic antibiotics.
- This approach assumes UTIs and subsequent renal scarring are preventable, and that VUR may resolve spontaneously.
Purpose of the Study:
- To critically evaluate the efficacy of antibiotic prophylaxis in preventing UTIs and renal scarring in children with VUR.
- To review current controversies surrounding VUR management.
Main Methods:
- Literature review of recent studies on VUR management.
- Discussion of the ongoing RIVUR (Reflux in VUR) Study, a randomized placebo-controlled trial by the National Institutes of Health.
Main Results:
- Growing concern exists that antibiotic prophylaxis may not effectively prevent UTIs in children with VUR.
- Evidence suggests renal scarring may not be preventable with antibiotic prophylaxis or surgical correction.
Conclusions:
- The RIVUR Study's outcomes will have significant implications for VUR management.
- If antibiotic prophylaxis is ineffective, the necessity of VUR identification and its benefits require re-evaluation.
- Prompt and appropriate treatment of UTIs may be sufficient for preserving renal function.
Unlabelled:
The current management of vesicoureteral reflux (VUR) focuses on the prevention of urinary tract infections (UTI), with curative surgery being limited to those children that fail conservative measures. This is based on the assumption that UTIs are preventable with the use of prophylatic antibiotics, leading to reduction of renal scarring, and the possibility that VUR in children can resolve spontaneously.
Methods:
Review of the recent literature has demonstrated a growing concern that antibiotic prophylaxis may not lead to prevention of UTIs. Additionally, data indicate that renal scarring may not be preventable with antibiotic prophylaxis or even surgical correction of VUR. An overview of all of the current controversies is presented in this paper.
Results:
Does antibiotic prophylaxis lead to reduction in UTIs in children with VUR? To address this question, the National Institutes of Health have developed a randomized placebo-controlled study of children with VUR (the RIVUR Study), identified following the development of a UTI.
Conclusions:
There are far reaching consequences of the results of the RIVUR Study. If antibiotic prophylaxis does not prevent UTI in children with VUR, or lead to reduction in renal scarring, does identification of VUR provide any benefits? Perhaps appropriate treatment of UTI may be all that is necessary for preserving renal function. Final answers will have to wait until the completion of this study.
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