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Enteric mucosal regrowth after bladder augmentation using demucosalized gut segments

P A Dewan1, C E Close, R W Byard

  • 1Urology Unit, Royal Children's Hospital, Parkville, Victoria, Australia.

The Journal of Urology
|September 1, 1997
PubMed
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Preventing enteric mucosal regrowth in bladder augmentation surgery is crucial. Complete removal of the muscularis mucosae and submucosa from flaps prevents regrowth, ensuring successful urothelial lined enterocystoplasty in children.

Area of Science:

  • Urology
  • Surgical Innovation
  • Tissue Engineering

Background:

  • Enteric mucosal regrowth is a complication in demucosalized enterocystoplasty.
  • Achieving a complete urothelial lined enterocystoplasty is the goal.

Purpose of the Study:

  • To determine methods to prevent enteric mucosal regrowth on muscular flaps.
  • To ensure successful bladder augmentation with a urothelial lining.

Main Methods:

  • Sheep models underwent bladder augmentation using demucosalized gastric or colonic flaps.
  • Surgical techniques varied in the extent of muscularis mucosae and submucosa removal.
  • Clinical autoaugmentation was performed in children, followed by urodynamic studies and mucin staining.

Main Results:

Related Experiment Videos

  • Preserving muscularis mucosae and submucosa on colonic flaps led to enteric mucosal regrowth in sheep.
  • Complete removal of muscularis mucosae and inner submucosa prevented regrowth in both stomach and colon flaps.
  • Clinical cases showed satisfactory urodynamic results with no enteric mucosal regrowth.

Conclusions:

  • Complete removal of the muscularis mucosae and inner submucosa is necessary to prevent enteric mucosal regrowth.
  • This surgical approach is effective and safe for bladder augmentation in children.