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Updated: Dec 23, 2025

An Immature Murine Model of Reversible Unilateral Ureteral Obstruction
Published on: April 4, 2025
Vesicoureteral reflux is it important to find?
Ian Hewitt1, Giovanni Montini2,3
1Department of Pediatric Nephrology, Perth Children's Hospital, Perth, Australia.
Vesico-ureteral reflux (VUR) is not the primary cause of chronic kidney disease (CKD) in children. Large trials suggest VUR is an associated condition, not the culprit, and routine screening after urinary tract infections (UTIs) may not be necessary.
Area of Science:
- Pediatric Nephrology
- Urology
- Renal Medicine
Background:
- Vesico-ureteral reflux (VUR) has been historically linked to urinary tract infections (UTIs), renal scarring, and chronic kidney disease (CKD) in children.
- The concept of reflux nephropathy posits VUR as the cause of kidney damage via ascending infections.
- Severe VUR was considered a significant risk factor for CKD progression and end-stage kidney failure (ESKF).
Purpose of the Study:
- To debate whether VUR is a primary cause of CKD in children or an associated condition.
- To evaluate the clinical significance of identifying and treating VUR in pediatric CKD.
- To present evidence challenging the traditional view of VUR as a major contributor to pediatric kidney disease.
Main Methods:
- Review of evidence from large-scale prospective randomized controlled trials.
- Analysis of the association between VUR, UTIs, renal scarring, and CKD progression.
- Debate format presenting arguments for and against VUR as a causative factor in pediatric CKD.
Main Results:
- Evidence suggests VUR may be an 'innocent bystander' rather than the direct cause of CKD in many pediatric cases.
- Findings challenge the necessity of routine VUR detection following UTIs, except in specific circumstances.
- Large trials indicate VUR is not the significant culprit previously believed in the development of pediatric CKD.
Conclusions:
- Vesico-ureteral reflux (VUR) is likely not the primary driver of chronic kidney disease (CKD) in a significant proportion of children.
- Routine screening for VUR after urinary tract infections (UTIs) may not be essential for preventing pediatric CKD.
- The clinical management paradigm for VUR in relation to pediatric kidney disease warrants re-evaluation based on current evidence.
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