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Management of urinary extravasation in 18 boys with posterior urethral valves

K K Patil1, D T Wilcox, M Samuel

  • 1Department of Paediatric Urology, Great Ormond Street Hospital for Children NHS Trust, London, United Kingdom.

The Journal of Urology
|March 12, 2003
PubMed

Insights

Urinary extravasation in boys with posterior urethral valves often impairs kidney function. A proposed management algorithm addresses this condition, improving outcomes.

Area of Science:

  • Pediatric Urology
  • Nephrology
  • Radiology

Background:

  • Urinary extravasation associated with posterior urethral valves is a rare condition.
  • Existing literature is primarily limited to case reports.

Purpose of the Study:

  • To propose a management algorithm for urinary extravasation in boys with posterior urethral valves.
  • To analyze the clinical presentation, diagnostic imaging, and renal function in affected boys.

Main Methods:

  • Retrospective review of 18 boys with posterior urethral valves and urinary extravasation.
  • Analysis of clinical features, voiding cystourethrogram, and (99m)technetium mercaptoacetyltriglycine scans.
  • Assessment of glomerular filtration rate (GFR) for renal function evaluation.

Main Results:

  • Common presentations include abdominal distention and flank mass.
  • Boys with ascites showed significantly lower GFR compared to those with ascites and urinoma.
  • Impaired renal function was noted in the ipsilateral kidney in unilateral urinoma cases.

Conclusions:

  • Renal function is compromised on the side of the urinoma.
  • Most patients experience impaired global renal function.
  • A novel management algorithm is proposed based on study findings.
Abstract

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