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Updated: Oct 22, 2025

Creation of Colonic Anastomosis in Mice
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Intestinal anastomotic healing models during experimental colitis.

J R E Miltschitzky1, Z Clees1, M-C Weber1

  • 1School of Medicine, Klinikum Rechts Der Isar, Department of Surgery, Technical University of Munich, Munich, Germany.

International Journal of Colorectal Disease
|August 29, 2021
PubMed
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This summary is machine-generated.

This study presents a standardized murine model for investigating anastomotic healing during inflammatory bowel disease. The model aids research into the mechanisms of impaired wound healing in colorectal surgery.

Area of Science:

  • Surgical Innovation
  • Gastroenterology Research
  • Inflammatory Bowel Disease Models

Background:

  • Anastomotic leakage is a critical complication in colorectal surgery.
  • Inflammatory conditions like IBD significantly impair anastomotic healing.
  • Current understanding of underlying mechanisms remains limited, necessitating further research.

Purpose of the Study:

  • To introduce a standardized and reproducible murine model for preoperative colitis and colorectal anastomosis.
  • To facilitate in-depth research into the mechanisms of defective anastomotic healing in inflammatory disease.

Main Methods:

  • Combines experimental colitis induction with standardized colorectal anastomosis in mice.
  • Employs functional outcomes, clinical scores, endoscopy, and histopathology for monitoring.
Keywords:
Anastomotic leakageDextran sodium sulfateInsufficient healing

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  • Includes molecular analysis for comprehensive evaluation.

    • Main Results:

    • The model allows monitoring of anastomotic healing via clinical, endoscopic, and histopathological assessments.
    • Functional stability is assessed through bursting pressure and location.
    • Macroscopic and microscopic evaluations provide detailed insights into healing processes.

    Conclusions:

    • The presented murine model integrates adjustable colitis levels with standardized anastomosis.
    • Offers extensive options for sample analysis and clinical outcome evaluation.
    • Enables detailed investigation into the mechanisms of impaired anastomotic healing.