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本文回顾性地分析了急性前壁心梗而且在30天内行冠脉造影的42例病人，其中12倒入院时心电图合并下壁导联阿段压低，30例无下壁导联ST段压低。通过比较两组冠脉造影的结果以及对心电图Ⅱ、Ⅲ、avF导联ST段压低与V1－V6及I、avL导联ST段抬高的直线相关关系。得出结论：急性前壁心梗早期下壁ST段压低代表高侧壁ST段抬高的镜像反应，提示对角支开口近端前降支病变。
This article retrospectively analyzed the acute anterior myocardial infarction and coronary angiography within 30 days of 42 patients, of which 12 were admitted to the hospital with electrocardiogram lower leads A segment depression, 30 cases without inferior ST lead depression. By comparing the results of two coronary angiography and ST segment depression on ECG Ⅱ, Ⅲ, avF lead and ST-segment elevation of V1-V6 and I, avL lead linear correlation. Conclusions: ST segment depression in the lower anterior wall of the acute anterior myocardial infarction represents the mirror image of ST segment elevation in the high side wall, suggesting that the anterior descending branch of the diagonal branch opens.