The effect of hydrogel injection on cardiac function and myocardial mechanics in a computational post-infarction model

Jeroen Kortsmit, Neil H. Davies, Renee Miller, Jesse R. Macadangdang, Peter Zilla and Thomas Franz

Computer Methods in Biomechanics and Biomedical Engineering, 2013, vol. 16, issue 11, 1185-1195

Abstract: An emerging therapy to limit adverse heart remodelling following myocardial infarction (MI) is the injection of polymers into the infarcted left ventricle (LV). In the few numerical studies carried out in this field, the definition and distribution of the hydrogel in the infarcted myocardium were simplified. In this computational study, a more realistic biomaterial distribution was simulated after which the effect on cardiac function and mechanics was studied. A validated finite element heart model was used in which an antero-apical infarct was defined. Four infarct models were created representing different temporal phases in the progression of a MI. Hydrogel layers were simulated in the infarcted myocardium in each model. Biomechanical and functional improvement of the LV was found after hydrogel inclusion in the ischaemic models representing the early phases of MI. In contrast, only functional but no mechanical restitution was shown in the scar model due to hydrogel presence.

Date: 2013
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DOI: 10.1080/10255842.2012.656611

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