Suppression of Complex Spiral--Wave Activity in an Ionic Model of Cardiac Tissue by Weak Local Stimulations

Details Suppression of Complex Spiral--Wave Activity in an Ionic Model of Cardiac Tissue by Weak Local Stimulations Suppression of Complex Spiral--Wave Activity in an Ionic Model of Cardiac Tissue by Weak Local Stimulations

2006-10-10

arxiv.org/abs/nlin/0610020v1

Nonlinear Sciences

Chaotic Dynamics

5 pages, 7 pictures. The paper will be submitted to PRL

Scientific paper

On the basis of a quite realistic ionic Fenton--Karma model of the cardiac tissue we consider the problem of defibrillation by a local weak forcing. In contrast to other systems, this model accurately reproduces the most essential mesoscopic properties of the cardiac activity. It is shown that suppression of spiral--wave turbulent dynamics in the heart tissue may be realized by a low-voltage local non-feedback electrical stimulation of monophasic and biphasic shapes. After stabilization the medium goes to a spatially homogeneous steady state.

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