Paroxysmal starting and stopping of circulating waves in excitable media.
نویسندگان
چکیده
Levels of intracellular Ca2+ were monitored using fluorescence from Ca2+-sensitive dyes in chick embryonic heart cells cultured in an annular geometry. There was spontaneous starting and stopping of reentrant waves of activity. The results are modeled using modified FitzHugh-Nagumo equations representing pacemakers embedded in a conducting medium. These results provide a potential mechanism for spontaneous abnormal cardiac rhythms in which there are rapid heart beats (tachycardias) that repetitively start and stop.
منابع مشابه
Resetting and Annihilation of Reentrant Abnormally Rapid Heartbeat.
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عنوان ژورنال:
- Physical review letters
دوره 84 18 شماره
صفحات -
تاریخ انتشار 2000