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目的 评定心电图在判定急性下壁心肌梗死罪犯血管的意义。方法 对５６例急性下壁心肌梗死患者的心电图及冠状动脉造影资料进行分析。结果①罪犯血管是右冠状动脉占８５．７％，回旋支占１４．３％；②窦性心动过缓、房室传导阻滞、室颤是右冠状动脉闭塞指标；③ＳＴＩ．ａＶＬ压低≥１．０ｍｍ是右冠状动脉闭塞敏感指标（Ｐ＜０．０５及Ｐ＜０．０１），敏感性及特异性分别为６９％、７５％及９２％、７５％，而缺乏ＳＴＩ．ａＶＬ压低是回旋支闭塞的敏感指标（Ｐ均＜０．０１），敏感性、特异性各为７５％、６９％及７５％、９２％；④ＳＴＶ５Ｖ６压低≥１．０ｍｍ预示多支病变（Ｐ＜０．０１），敏感性、特异性各为７５％、８１％，且提示合并前降支病变（Ｐ＜０．０１），其敏感性、特异性各为８２％、８２％。结论 急性下壁心肌梗死时心电图对判定罪犯血管有重要预测价值。
Objective To assess the significance of electrocardiogram (ECG) in determining the culprit vessel of acute inferior myocardial infarction. Methods 56 cases of acute inferior myocardial infarction patients with ECG and coronary angiography data were analyzed. Results ① The criminals’ blood vessels accounted for 85.7% of the right coronary artery and the gyrus branch accounted for 14.3%. ② Sinus bradycardia, atrioventricular block and ventricular fibrillation were indicators of right coronary artery occlusion. ③STI. The aVL depression≥1.0mm was a sensitive index for right coronary occlusion (P <0.05 and P <0.01), with a sensitivity and specificity of 69%, 75%, 92% and 75%, respectively, without STI. The aVL depression was the sensitive index of the circumflex artery occlusion (P <0.01), and the sensitivity and specificity were 75%, 69% and 75%, 92% respectively. (4) The depression of STV5V6≥1.0mm predicts multi-vessel disease 0.01). The sensitivity and specificity were 75% and 81%, respectively, which suggested that the sensitivity and specificity were 82% and 82% respectively. Conclusion Electrocardiogram of acute inferior myocardial infarction has important predictive value for judging blood vessels of criminals.