In a computational model of cardiac tissue, simulated electromagnetic radiation altered the spatial distribution of magnetic flux, leading to the breakup of spiral waves and turbulent electrical activities.
Computational modeling suggests that external electromagnetic radiation can cause spiral wave breakup and turbulent electrical activities in cardiac tissue, potentially explaining sudden heart disorders.
Complex electrical activities in cardiac tissue can set up time-varying electromagnetic field. Magnetic flux is introduced into the Fitzhugh-Nagumo model to describe the effect of electromagnetic induction, and then memristor is used to realize the feedback of magnetic flux on the membrane potential in cardiac tissue. It is found that a spiral wave can be triggered and developed by setting specific initials in the media, that is to say, the media still support the survival of standing spiral waves under electromagnetic induction. Furthermore, electromagnetic radiation is considered on this model as external stimuli, it is found that spiral waves encounter breakup and turbulent electrical activities are observed, and it can give guidance to understand the occurrence of sudden heart disorder subjected to heavily electromagnetic radiation.
Wu et al. (Mon,) conducted a other in Cardiac arrhythmias (theoretical model). Electromagnetic induction (simulated) was evaluated on Spiral wave formation and breakup. In a computational model of cardiac tissue, simulated electromagnetic radiation altered the spatial distribution of magnetic flux, leading to the breakup of spiral waves and turbulent electrical activities.