  Ventricular fibrillation, the major reason behind sudden cardiac death, is
turbulent cardiac electrical activity in which rapid, irregular disturbances in
the spatiotemporal electrical activation of the heart makes it incapable of any
concerted pumping action. Methods of controlling ventricular fibrillation
include electrical defibrillation as well as injected medication. Electrical
defibrillation, though widely used, involves subjecting the whole heart to
massive, and often counterproductive, electrical shocks. We propose a
defibrillation method that uses a very-low-amplitude shock (of order mV)
applied for a brief duration (of order 100 ms) and over a coarse mesh of lines
on our model ventricle.
