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T波电交替是心室复极不一致的表现,提示心肌电活动不稳定,是患者发生恶性室性心律失常和心脏性猝死的强有力的独立预测指标。在常规心电图上观察到的T波电交替幅度为毫伏级(mV),又称显性T波电交替。而目前T波电交替的检查已发展为肉眼看不见、幅度为微伏级(μV)的电交替,又称微伏级T波电交
T wave alternation is inconsistent ventricular repolarization performance, suggesting that unstable cardiac electrical activity, is a patient with malignant ventricular arrhythmia and sudden cardiac death, a strong independent predictors. T waves observed in the conventional ECG alternating amplitude of millivolts (mV), also known as dominant T-wave alternating. At present, T wave alternation inspection has developed into the naked eye, the magnitude of the micro-volts (μV) of the electricity alternating, also known as micro-level T wave power transmission