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Extracellular Matrices for Gastrointestinal Surgery: Ex Vivo Testing and Current Applications

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Specialty Gastroenterology
Date 2010 Aug 24
PMID 20731016
Citations 2
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Abstract

Aim: To assess the effects of bile and pancreatic juice on structural and mechanical resistance of extracellular matrices (ECMs) in vitro.

Methods: Small-intestinal submucosa (SIS), porcine dermal matrix (PDM), porcine pericardial matrix (PPM) and bovine pericardial matrix (BPM) were incubated in human bile and pancreatic juice in vitro. ECMs were examined by macroscopic observation, scanning electron microscopy (SEM) and testing of mechanical resistance.

Results: PDM dissolved within 4 d after exposure to bile or pancreatic juice. SIS, PPM and PDM retained their integrity for > 60 d when incubated in either digestive juice. The effect of bile was found to be far more detrimental to mechanical stability than pancreatic juice in all tested materials. In SIS, the loss of mechanical stability after incubation in either of the digestive secretions was less distinct than in PPM and BPM [mFmax 4.01/14.27 N (SIS) vs 2.08/5.23 N (PPM) vs 1.48/7.89 N (BPM)]. In SIS, the extent of structural damage revealed by SEM was more evident in bile than in pancreatic juice. In PPM and BPM, structural damage was comparable in both media.

Conclusion: PDM is less suitable for support of gastrointestinal healing. Besides SIS, PPM and BPM should also be evaluated experimentally for gastrointestinal indications.

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Christodoulidis G, Samara A, Floros T, Karakantas K, Zotos P, Koutras A In Vivo. 2021; 35(5):2697-2702.

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Repair of gastric defects with an equine pericardial patch.

Spiliopoulos K, Markakis C, Tomos P, Gakiopoulou H, Nikolopoulos I, Spartalis E Surg Today. 2014; 45(1):83-90.

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