  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.

Chaotic Dynamics;Adaptation and Self-Organizing Systems