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心脏在每次机械收缩之前,都先有一次短促的电变化产生。近年来,由于电生理和微电极技术的发展,对于心肌的电生理特性,已经从细胞或亚细胞水平作了比较深入的研究,这对于理解整个心脏的生理功能、解释临床心电图的各种变化、以及阐明心律失常的产生原理和一些抗心律
Before each mechanical contraction of the heart, there is a short electrical changes occur. In recent years, due to the development of the electrophysiological and microelectrode technologies, more studies have been made on the electrophysiological characteristics of the myocardium from the cell or subcellular level, which explains the physiological changes of the entire heart and explains various changes of the clinical ECG , As well as clarify the principle of arrhythmia and some anti-heart rhythm