Biomechanics of infarcted left ventricle-a review of experiments

Li, W. (2020) Biomechanics of infarcted left ventricle-a review of experiments. Journal of the Mechanical Behavior of Biomedical Materials, 103, 103591. (doi: 10.1016/j.jmbbm.2019.103591) (PMID:32090920)

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Myocardial infarction (MI) is one of leading diseases to contribute to annual death rate of 5% in the world. In the past decades, significant work has been devoted to this subject. Biomechanics of infarcted left ventricle (LV) is associated with MI diagnosis, understanding of remodelling, MI micro-structure and biomechanical property characterizations as well as MI therapy design and optimization, but the subject has not been reviewed presently. In the article, biomechanics of infarcted LV was reviewed in terms of experiments achieved in the subject so far. The concerned content includes experimental remodelling, kinematics and kinetics of infarcted LVs. A few important issues were discussed and several essential topics that need to be investigated further were summarized. Microstructure of MI tissue should be observed even carefully and compared between different methods for producing MI scar in the same animal model, and eventually correlated to passive biomechanical property by establishing innovative constitutive laws. More uniaxial or biaxial tensile tests are desirable on MI, border and remote tissues, and viscoelastic property identification should be performed in various time scales. Active contraction experiments on LV wall with MI should be conducted to clarify impaired LV pumping function and supply necessary data to the function modelling. Pressure-volume curves of LV with MI during diastole and systole for the human are also desirable to propose and validate constitutive laws for LV walls with MI.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Li, Dr Wenguang
Authors: Li, W.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Journal of the Mechanical Behavior of Biomedical Materials
ISSN (Online):1878-0180
Published Online:16 December 2019
Copyright Holders:Copyright © 2019 Elsevier Ltd.
First Published:First published in Journal of the Mechanical Behavior of Biomedical Materials 103: 103591
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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