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Tissue blood flow to a pedicled jejunal autograft in the dog: A pilot study
1Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado.
Objective:
To determine the viability of a pedicled jejunal autograft after ligation of up to 3 jejunal arteries.
Study Design:
Prospective crossover study.
Animals:
Three adult dogs.
Methods:
Dogs were instrumented for measurement of hemodynamic parameters. Two segments of jejunum with 4 arcadial vessels were isolated from the abdomen in each dog. An individual ligature was secured around the 4th, 3rd, and 2nd jejunal artery. The 1st jejunal artery was maintained to serve as the sole blood supply to the pedicled segment of jejunum. Colored microspheres were used to evaluate the effect of each ligation on tissue blood flow.
Results:
Mean arterial blood pressure (P = .709) and heart rate (P = .905) did not differ between ligation groups. Tissue blood flow to a pedicled segment of jejunum was unchanged after ligation of 3 jejunal arteries.
Conclusion:
Tissue blood flow of an isolated jejunal segment maintained in normal position remains unaffected, when supplied by a single jejunal artery, after ligation of up to 3 concurrent jejunal arteries.
