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Fate of the kidney after antireflux surgery
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Ureteroplasty in children with reflux is effective, but severe reflux can lead to chronic pyelonephritis (CPN) and impact kidney growth. Prolonged reflux exposure may worsen renal deterioration.
Area of Science:
- Pediatric Urology
- Nephrology
- Surgical Management
Background:
- Vesicoureteral reflux (VUR) is a common condition in children, potentially leading to kidney damage.
- Ureteroplasty is a surgical option for managing VUR.
- Long-term outcomes of ureteroplasty for VUR require further investigation.
Purpose of the Study:
- To evaluate the long-term renal outcomes in children who underwent ureteroplasty for VUR.
- To assess the impact of VUR severity on renal growth and the development of chronic pyelonephritis (CPN).
Main Methods:
- Analysis of case reports with 5- to 12-year follow-up.
- Evaluation of renal growth and pyelonephritic changes post-ureteroplasty.
- Correlation of preoperative VUR degree with renal status.
Main Results:
- The severity of VUR significantly influences renal status; higher reflux grades correlate with increased frequency and extent of CPN.
- Kidneys initially appearing normal generally remain so, but CPN can still develop, sometimes severely.
- Renal growth potential in pyelonephritic kidneys is variable and unpredictable.
- Prolonged exposure to VUR appears detrimental, potentially accelerating renal deterioration.
Conclusions:
- VUR severity is a key determinant of renal status and CPN development.
- While initial renal appearance is often preserved, CPN can emerge post-ureteroplasty.
- Renal growth in affected kidneys is unpredictable.
- Minimizing VUR duration is crucial to prevent progressive renal damage.
Abstract:
Representative case reports of children subjected to ureteroplasty in the management of reflux have been presented. Five- to 12-year follow-up studies were analyzed with reference to renal growth and pyelonephritic changes; the effect of the degree of preoperative reflux was recorded. The following conclusions appear warranted: 1. Severity of reflux is a major factor determining renal status; the more marked the reflux, the greater the frequency and extent of CPN. 2. Kidneys which appear normal initially usually remain so;however, CPN may develop, sometimes to a severe degree (Fig. 9). 3. The growth potential of pyelonephritic kidneys is quite variable and not readily predictable (Fig. 9). 4. Prolonged exposure to reflux appears to be an unfavourable situation possibly accelerating renal deterioration.