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Related Experiment Videos

[Development of a gastroplasty with variable diameter. Experimental study using artificial sphincters].

M Merlini1, V Mirkovitch, B Winistörfer

  • 1Département de chirurgie, Hôpital, La Chaux-de-Fonds.

Helvetica Chirurgica Acta
|May 1, 1992
PubMed
Summary

Researchers developed a novel adjustable stoma for vertical banded gastroplasty in dogs, using an artificial sphincter. This technique allows for precise control over stoma size, offering a potential advancement in surgical obesity treatment.

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Area of Science:

  • Bariatric Surgery
  • Surgical Innovation
  • Gastroenterology

Context:

  • Vertical banded gastroplasty is a common surgical procedure for morbid obesity.
  • Existing methods lack adjustable stoma functionality.
  • This study explores an alternative approach using an artificial sphincter.

Purpose:

  • To develop and evaluate a gastroplasty with a variable stoma using an artificial sphincter.
  • To assess the feasibility and safety of adjustable stoma creation in a canine model.
  • To determine the efficacy of the artificial sphincter in controlling stoma diameter.

Summary:

  • An experimental study in four dogs created a variable stoma gastroplasty by replacing the Marlex band with an artificial sphincter cuff connected to a subcutaneous port.

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  • The system allowed for selective stoma diameter variation, decreasing surface area from 103 +/- 2.0 mm2 to 61 +/- 2.1 mm2 without significant variation per volume unit.
  • One-year follow-up, including gastroscopic control and microscopic examination, showed no technical issues or peri-sphincteric fibrosis, confirming the system's viability.

    • Impact:

    • Demonstrates the possibility of creating a functional, adjustable stoma for gastroplasty.
    • Highlights a potential improvement in managing bariatric surgical outcomes through precise stoma size control.
    • Suggests a new avenue for developing adjustable devices in gastrointestinal surgery.