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Computational and Mathematical Methods in Medicine
Volume 2016, Article ID 6930482, 8 pages
http://dx.doi.org/10.1155/2016/6930482
Research Article

Computational Analysis of Pumping Efficacy of a Left Ventricular Assist Device according to Cannulation Site in Heart Failure with Valvular Regurgitation

Department of IT Convergence Engineering, Kumoh National Institute of Technology, Gumi-si, 39253, Republic of Korea

Received 23 June 2016; Revised 4 November 2016; Accepted 5 December 2016

Academic Editor: Yoichiro Mori

Copyright © 2016 Aulia Khamas Heikhmakhtiar and Ki Moo Lim. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Mitral valve regurgitation (MR) causes blood to flow in two directions during contraction of the left ventricle (LV), that is, forward into the aorta and backward into the left atrium (LA). In aortic valve regurgitation (AR), leakage occurs from the aorta into the LV during diastole. Our objective is to analyze the contribution of a left ventricular assist device (LVAD) to MR and AR for the following two different cannulation sites: from the LA to the aorta (LAAO) and from the LV to the aorta (LVAO). Using a computational method, we simulated three ventricular conditions (normal [HF without valvular regurgitation], 5% MR, and 5% AR) in three groups (control [no LVAD], LAAO, and LVAO). The results showed that LVAD with LAAO cannulation is appropriate for recovery of the MR heart, and the LVAD with LVAO cannulation is appropriate for treating the AR heart.