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本文评价连续心搏的心电图形态变异度对急诊室胸痛患者急性心肌梗死（Aml）和心肌缺血的早期诊断价值。方法：以急诊室49例非选择性前胸痛患者为研究对象．完整记录其病史、体征和12导联心电图。用高分辨心电记录器检测QRS波的平均形态，并计算QRS波各区连续心搏的形态变异度．
This article evaluates the early diagnosis of acute myocardial infarction (Aml) and myocardial ischemia in emergency room with chest pain in patients with ECG of continuous cardiac stroke. Methods: Forty-nine patients with non-selective anterior chest pain in the emergency department were studied. Complete record of its history, signs and 12-lead ECG. With high-resolution ECG recorder to detect the average morphology of QRS wave, and calculate the QRS wave in all areas of continuous heart rate of morphological variation.