Arun V. Holden, "Defibrillation in Models of Cardiac Muscle", Computational and Mathematical Methods in Medicine, vol. 1, Article ID 585023, 12 pages, 1997. https://doi.org/10.1080/10273669708833010
Defibrillation in Models of Cardiac Muscle
The propagation of electrical activity in cardiac tissue can be modelled by reaction diffusion equations, where a tensor of diffusion coefficients represents anisotropy due to fiber orintation, and excitation is represented by high-order, stiff differential systems. The effects of external electrical stimulation, as in artifical pacemakers, or in defibrillators, requires bidomain models, in wich intra- and extracellular currents are treated separately.simplified approaches are taken to this problem to illustrate two methods of defibrillation: by a sinhle large pulse, that eliminates all propagating activity, and by a series of smaller amplitude perturbations, that drive out re-entrant sources of excitation.
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