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Related Experiment Video

Updated: Jun 17, 2025

Postoperative Ileus Murine Model
04:26

Postoperative Ileus Murine Model

Published on: July 12, 2024

558

Postoperative ileus-Establishing a porcine model.

A K Martensen1,2, E V Moen3, C Brock4

  • 1Department of Surgery, Aarhus University Hospital, Aarhus N, Denmark.

Neurogastroenterology and Motility
|August 13, 2024
PubMed
Summary

Researchers established a porcine model for postoperative ileus (POI), a condition of absent gastrointestinal motility. This model will aid future studies on effective treatments for POI after abdominal surgery.

Keywords:
animalsgastrointestinal transitileuspostoperative complicationspostoperative periodsurgical procedures

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Area of Science:

  • Gastroenterology
  • Surgical Research
  • Animal Models

Background:

  • Postoperative ileus (POI) is a common complication after abdominal surgery, marked by impaired gastrointestinal motility.
  • Currently, no effective treatments exist for POI, necessitating further research.
  • Developing reliable animal models is crucial for investigating POI pathophysiology and therapeutic strategies.

Purpose of the Study:

  • To establish a reproducible porcine model of postoperative ileus (POI).
  • To provide a foundation for future research into the treatment of POI.

Main Methods:

  • Twelve Landrace pigs (60 kg) were utilized, with initial pilot studies to refine the surgical procedure.
  • Five pigs underwent the refined surgical procedure, and two served as controls.
  • Intestinal motility was assessed using the SmartPill system, with the primary endpoint being the time to first stool.

Main Results:

  • Pigs undergoing the surgical procedure experienced delayed first stool, with four passing stool on postoperative day 3 and one on day 5.
  • SmartPill monitoring indicated gastric retention in four out of five pigs, suggesting impaired gastric emptying.
  • The established model demonstrated characteristics consistent with POI.

Conclusions:

  • A viable experimental porcine model for postoperative ileus has been successfully established.
  • This model serves as a critical platform for future investigations into POI.
  • Further research can now focus on understanding POI mechanisms and developing targeted interventions.