Ventricular fibrillation in a simple excitable medium model of cardiac tissue

Shajahan, TK and Sinha, Sitabhra and Pandit, Rahul (2003) Ventricular fibrillation in a simple excitable medium model of cardiac tissue. In: International Journal of Modern Physics B, 17 (29). pp. 5645-5654.

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Abstract

Ventricular fibrillation (VF), the major reason behind sudden cardiac death, is turbulent cardiac electrical activity in which rapid, irregular disturbances in spatiotemporal electrical activation of heart make it incapable of any concerted pumping action. We give a brief overview of the simple Panfilov model for ventricular fibrillation, with emphasis on studies that have elucidated the nature of spiral turbulence which is the analog of VF here. The control of such turbulence is briefly touched upon. Preliminary results are presented for the effects of conduction inhomogeneity on spiral breakup, and the transition from functional to anatomical reentry as a function of the size and position of the inhomogeneity

Item Type:	Journal Article
Publication:	International Journal of Modern Physics B
Publisher:	World Scientific Publishing Company
Additional Information:	Copyright of this article belongs to World Scienti�c Publishing Company.
Keywords:	Excitable media;ventricular �brillation;spiral turbulence; cardiac arrhyth-mia;spatiotemporal chaos.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	11 Apr 2007
Last Modified:	09 Jan 2012 08:53
URI:	http://eprints.iisc.ac.in/id/eprint/10663

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