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Renal growth and scarring in kidneys with reflux and a concentrating defect
Insights
Kidneys with reflux and impaired urine concentration grow less and show more scarring. A persistent concentrating defect may predict poor kidney growth and scarring in children with reflux.
Area of Science:
- Pediatric Nephrology
- Urology
Background:
- Vesicoureteral reflux (VUR) is a common condition in children.
- Renal scarring and impaired growth are known complications of VUR.
- The role of renal concentrating defects in VUR outcomes is not fully understood.
Purpose of the Study:
- To investigate the impact of renal concentrating defects on kidney growth and scarring in children with VUR.
- To determine if a renal concentrating defect is a predictor of adverse renal outcomes in VUR.
Main Methods:
- Retrospective study comparing two groups of children with VUR.
- Group 1: 11 children with VUR and a renal concentrating defect.
- Group 2: 20 children with VUR but no renal concentrating defect.
- Measurements included renal growth and assessment of renal scars via radiographs.
Main Results:
- Kidneys with VUR and a renal concentrating defect exhibited significantly less growth compared to kidneys with VUR alone.
- Kidneys with VUR and a renal concentrating defect showed a higher incidence of renal scarring.
- A persistent renal concentrating defect was associated with poorer renal outcomes.
Conclusions:
- A renal concentrating defect exacerbates the negative effects of VUR on kidney development.
- Persistent renal concentrating defects may serve as a valuable clinical predictor for identifying children with VUR at higher risk for impaired renal growth and scarring.
Abstract:
A study was done to determine if kidneys with reflux and an associated renal concentrating defect grew less well and had more scars than kidneys with reflux but no renal concentrating defect. To test our hypothesis we measured renal growth and assessed radiographs for renal scars in 11 children with and 20 children without a renal concentrating defect. Kidneys with reflux and a renal concentrating defect grew less well and had more scars than those kidneys with reflux but no renal concentrating defect. A persistent renal concentrating defect may be a predictor of kidneys more likely to have impaired growth and renal scars.