Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/111575
Title: Induced Drift of Scroll Waves in the Aliev-Panfilov Model and in an Axisymmetric Heart Left Ventricle
Authors: Pravdin, S. F.
Epanchintsev, T. I.
Nezlobinskii, T. V.
Panfilov, A. V.
Issue Date: 2020
Publisher: De Gruyter Open Ltd
Walter de Gruyter GmbH
Citation: Induced Drift of Scroll Waves in the Aliev-Panfilov Model and in an Axisymmetric Heart Left Ventricle / S. F. Pravdin, T. I. Epanchintsev, T. V. Nezlobinskii et al. // Russian Journal of Numerical Analysis and Mathematical Modelling. — 2020. — Vol. 35. — Iss. 5. — P. 273-283.
Abstract: The low-voltage cardioversion-defibrillation is a modern sparing electrotherapy method for such dangerous heart arrhythmias as paroxysmal tachycardia and fibrillation. In an excitable medium, such arrhythmias relate to appearance of spiral waves of electrical excitation, and the spiral waves are superseded to the electric boundary of the medium in the process of treatment due to high-frequency stimulation from the electrode. In this paper we consider the Aliev-Panfilov myocardial model, which provides a positive tension of three-dimensional scroll waves, and an axisymmetric model of the left ventricle of the human heart. Two relations of anisotropy are considered, namely, isotropy and physiological anisotropy. The periods of stimulation with an apical electrode are found so that the electrode successfully entrains its rhythm in the medium, the spiral wave is superseded to the base of the ventricle, and disappears. The results are compared in two-dimensional and three-dimensional media. The intervals of effective stimulation periods are sufficiently close to each other in the two-dimensional case and in the anatomical model. However, the use of the anatomical model is essential in determination of the time of superseding. © 2020 Walter de Gruyter GmbH, Berlin/Boston 2020.
Keywords: ELECTROTHERAPY
IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR
MATHEMATICAL CARDIOLOGY
PAROXYSMAL TACHYCARDIA
SPIRAL WAVE
ANISOTROPY
ELECTRIC EXCITATION
ELECTROTHERAPEUTICS
ALIEV-PANFILOV MODEL
ANATOMICAL MODELING
APICAL ELECTRODES
AXISYMMETRIC MODELING
EFFECTIVE STIMULATION
ELECTRICAL EXCITATION
HIGH-FREQUENCY STIMULATIONS
THREE DIMENSIONAL MEDIAS
ELECTRODES
URI: http://hdl.handle.net/10995/111575
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85095805018
PURE ID: 20127817
ISSN: 0927-6467
metadata.dc.description.sponsorship: The work was supported by the Russian Science Foundation (project No. 17–71–20024). The work was performed with the use of the ‘URAN’ supercomputer of IMM UB RAS.
RSCF project card: 17-71-20024
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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