Small Bowel in Vivo Bioengineering Using an Aortic Matrix in a Porcine Model

Overview

Journal Surg Endosc

Publisher Springer

Specialties Gastroenterology
General Surgery
Radiology

Date 2016 Feb 24

PMID 26902616

Citations 1

Authors

Elie Chouillard

Elias Chahine

Eric Allaire

Anne Filaire-Legendre

Jeanne Tran Van Nhieu

Emmanuel Martinod

Affiliations

Soon will be listed here.

Abstract

Objective: To evaluate the feasibility of an in vivo small bowel bioengineering model using allogeneic aortic grafts in pigs.

Background: The best treatment for short bowel syndrome is still unclear. Intestinal transplantation, as well as lifelong parenteral nutrition is associated with a 5-year survival rate of less than 50 %. We have already used allogeneic arterial segments to replace the upper airway in sheep. The results were encouraging with an induced transformation of the aortic wall into tracheo-bronchial bronchial-type tissue.

Methods: Seven young mini-pigs were used. A 10-cm-diameter, allogeneic, aortic graft was interposed in an excluded small bowel segment and wrapped by the neighboring omentum. Animals were autopsied at 1 (n = 2), 3 (n = 3), and 6 months (n = 2), respectively. Specimens were examined macroscopically and microscopically.

Results: The overall survival rate of the animals was 71.4 %. No anastomotic leak occurred. Histologic analysis revealed intestinal-like wall transformation of the aortic graft in the surviving animals.

Conclusion: Aortic-enteric anastomosis is feasible in a porcine model. Moreover, in vivo, bioengineered, intestinal-like transformation of the vascular wall was identified.

Citing Articles

Feasibility of Bioengineered Tracheal and Bronchial Reconstruction Using Stented Aortic Matrices.

Martinod E, Chouahnia K, Radu D, Joudiou P, Uzunhan Y, Bensidhoum M JAMA. 2018; 319(21):2212-2222.

PMID: 29800033 PMC: 6134437. DOI: 10.1001/jama.2018.4653.

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