About the incorrect description of ventricular repolarization order: discussion on ventricular depolarization and repolarization process, and direction consistency mechanism of QRS-T
Abstract：In traditional opinion, the direction consistency of QRST is resulted from the fact that the location depolarized first is repolarized after. It confuses the concepts of depolarization and repolarization, in which 3 phases are mistakenly regarded as the whole of repolarization, 2 phases are taken as the continuation of depolarization, and the variation of repolarization process is attributed to external causes without noticing the huge difference of electrophysiologic features in ventricular myocytes. Actually, where is depolarized first is necessarily repolarized first, but where is depolarized after is repolarized faster and finishes earlier, which makes membrane potential gradient of the whole ventricle points to outer membrane. Therefore, the vectors of QRS and T orient to almost the same direction.
袁杰. 关于心室复极顺序的错误表述——浅谈心室除复极过程与QRS-T同向机制[J]. 实用心电学杂志, 2016, 25(4): 291-293.
YUAN Jie. About the incorrect description of ventricular repolarization order: discussion on ventricular depolarization and repolarization process, and direction consistency mechanism of QRS-T. JOURNAL OF PRACTICAL ELECTROCARDIOLOGY, 2016, 25(4): 291-293.
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2016, Vol. 25 
