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T波改变是心电图波形分析中最常见的表现,目前T波形成机制尚不完全清楚。T波改变按产生机制分为:原发性、继发性和电张调整性T波改变,每种T波改变临床意义不同,在分析心电图改变的临床意义时必须结合临床综合分析。一、T波形成机制目前关于T波形成机制主要有心室跨壁复极离散与心室整体复极离散两种观点。1.心室跨壁复极离散理论为研究跨壁复极离散度(TDR)和T波形成之间关系,有人将一块狗楔形左心室壁离体灌流,用浮置细胞内电极分别插入三类细胞中,同时记录三类细
T wave changes are the most common ECG waveform analysis, the current T wave formation mechanism is not yet fully understood. T wave changes according to the mechanism of generation is divided into: primary, secondary and electrical tension T wave changes, each T wave changes clinical significance, in the analysis of the clinical significance of ECG changes must be combined with clinical analysis. First, the T wave formation mechanism Currently on the T wave formation mechanism mainly ventricular transmural repolarization dispersion and the ventricular complex bipolar two points of view. 1. Theory of transmural ventricular repolarization dispersion In order to study the relationship between transmural repolarization dispersion (TDR) and T wave formation, a dog wedge-shaped left ventricular wall was perfused ex vivo with floating electrode electrodes inserted into three categories Cells, while recording three types of fine