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Bladder augmentation with urothelial preservation.

M C Carr1, S G Docimo, M E Mitchell

  • 1Children's Hospital and Regional Medical Center, Seattle, Washington, USA.

The Journal of Urology
|August 24, 1999
PubMed
Summary
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Bladder augmentation using gastric flaps or peritoneum shows variable outcomes, with some patients achieving good results and others requiring repeat procedures. Further research is needed to understand stromal-epithelial interactions for routine recommendation.

Area of Science:

  • Urology
  • Pediatric Surgery
  • Regenerative Medicine

Background:

  • Bladder reconstruction addresses impaired bladder capacity and compliance, crucial for preventing upper tract damage.
  • Augmentation procedures aim to improve bladder function, with options for catheterizable channels.
  • Urothelial preservation is a desirable goal in bladder augmentation techniques.

Purpose of the Study:

  • To evaluate the outcomes of demucosalized augmentation with a gastric flap versus auto-augmentation with peritoneum.
  • To assess the efficacy of these bladder augmentation techniques in pediatric patients.

Main Methods:

  • Retrospective review of 13 patients undergoing gastric flap augmentation and 8 undergoing peritoneal augmentation (1992-1995).
  • Patients diagnosed with myelomeningocele, bladder exstrophy, and other conditions requiring bladder reconstruction.

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  • Concurrent procedures included creation of catheterizable channels and ureteroneocystostomy.

    • Main Results:

    • Mean follow-up was 50 months for gastric flap and 47 months for peritoneal augmentation.
    • Good outcomes (dry for 4 hours, easy catheterization, stable upper tract) were achieved in 5/13 gastric flap and 5/8 peritoneal cases.
    • Poor outcomes requiring repeat augmentation occurred in 4/13 gastric flap patients and 2/8 peritoneal patients.

    Conclusions:

    • Bladder augmentation with urothelial preservation can yield variable results in capacity and compliance.
    • A deeper understanding of bladder properties and stromal-epithelial interactions post-augmentation is necessary.
    • These techniques cannot yet be routinely recommended due to unpredictable outcomes.