Key result
Biphasic shocks, compared to monophasic shocks, are capable of terminating existing wavefronts by invoking a nonpropagating response or inducing wavefront collision in refractory cardiac fibers.
Why the study?
Do biphasic shocks compared to monophasic shocks improve the termination of existing wavefronts in refractory cardiac fibers?
Population
Cardiac fiber models undergoing a propagating action potential
Comparison
Biphasic shocks of various strengths and… vs Monophasic shocks of the same strength
Design
Preclinical
Authors
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Provides mechanistic insight from animal models; leaves open whether biphasic superiority improves clinical defibrillation outcomes.
Do biphasic shocks compared to monophasic shocks improve the termination of existing wavefronts in refractory cardiac fibers?
Biphasic shocks demonstrate enhanced efficacy over monophasic shocks in terminating wavefronts in refractory cardiac fibers by inducing large-scale hyperpolarization and depolarization.
Trayanova et al. (1997) studied Refractory cardiac fiber response to defibrillation shock. Biphasic shocks vs. Monophasic shocks was evaluated on Response of a refractory cardiac fiber to the defibrillation shock. Biphasic shocks, compared to monophasic shocks, are capable of terminating existing wavefronts by invoking a nonpropagating response or inducing wavefront collision in refractory cardiac fibers.
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