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Experimental devascularization (devitalization) of the rectum and sigmoideum.

K Fortýn1, V Hruban, J Hradecký

  • 1Czechoslovak Academy of Sciences, Department of Genetics, Libĕchov.

Zeitschrift Fur Experimentelle Chirurgie, Transplantation, Und Kunstliche Organe : Organ Der Sektion Experimentelle Chirurgie Der Gesellschaft Fur Chirurgie Der DDR
|January 1, 1989
PubMed
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This study explores devascularization techniques for rectal and sigmoidal tumors in pigs, showing the devascularized segment shrinks, preserving intestinal continuity and continence for potential palliative surgery.

Area of Science:

  • Surgical Oncology
  • Gastrointestinal Surgery
  • Experimental Surgery

Background:

  • Rectal and sigmoidal tumors present surgical challenges, especially when inoperable.
  • Palliative surgical options are crucial for managing advanced gastrointestinal malignancies.

Purpose of the Study:

  • To evaluate the efficacy of rectal and rectosigmoidal devascularization techniques in laboratory pigs.
  • To assess the feasibility of intestinal continuity restoration and continence preservation after devascularization.

Main Methods:

  • Devascularization of the rectum and sigmoideum using vascular ligatures in pigs.
  • Simultaneous aboral and oral closure, with terminal colostomy establishment.
  • Laparotomic revision after 12 weeks to assess tissue changes and reestablish intestinal continuity via anastomosis.

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Main Results:

  • The devascularized necrotic segment significantly shrank into fibrous tissue.
  • Anastomoses were patent, and continence was retained in colo-proctoanastomosis.
  • The described techniques were technically simple and effective in the animal model.

Conclusions:

  • Rectal and rectosigmoidal devascularization is a viable palliative surgical approach for inoperable tumors.
  • These techniques offer a method to preserve intestinal continuity and continence.
  • The simplicity of the procedures suggests potential clinical applicability.