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Related Experiment Videos

Small bowel motility and transit after aortic surgery.

Brent W Miedema1, Sarah Schillie, James W Simmons

  • 1Department of Surgery, University of Missouri Hospitals & Clinics, and Harry S. Truman VA Hospital, Columbia, 65212, USA. miedamab@health.missouri.edu

Journal of Vascular Surgery
|July 4, 2002
PubMed
Summary

Post-aortic surgery ileus is linked to abnormal jejunal motility and delayed small bowel transit. Retrograde phase III migration is a key factor, predicting feeding intolerance and suggesting pharmacologic interventions.

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Area of Science:

  • Gastroenterology
  • Surgical Research
  • Physiology

Background:

  • Postoperative ileus prolongs hospitalization after aortic surgery.
  • Feeding intolerance is a common complication.

Purpose of the Study:

  • To define jejunal manometric and small bowel transit characteristics associated with post-transperitoneal aortic surgery ileus.

Main Methods:

  • Jejunal catheter placement in 5 male patients undergoing infrarenal aortobifemoral bypass.
  • Postoperative manometric studies and small bowel transit assessment using barium radiographs.

Main Results:

  • Ileus resolved between 6-7 days post-surgery.
  • Reduced jejunal motility index and altered migrating motor complexes (more phase I, less phase II, more phase IIIs) observed.

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  • Small bowel transit time exceeded 2 days in all patients.

    • Conclusions:

    • Jejunal motor activity is present but decreased in intensity post-surgery.
    • Retrograde phase III migration is a likely cause of delayed transit and feeding intolerance.
    • Pharmacologic manipulation may restore normal small bowel motility post-aortic surgery.