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目的结合冠脉造影分析心电图V1导联在判断前降支病变位置中的价值及临床应用。方法入选106例因急性前壁心肌梗死行冠脉造影检查的患者,并对其发病后心电图V1导联ST段抬高的程度进行分析。结果冠脉造影发现,前降支近段病变者,V1导联ST段明显抬高≥2.5mV;前降支远段病变者,V1导联ST段抬高<2.5mV。同时近段病变者行急诊PCI术的成功率高于远段病变者。结论急性前壁心肌梗死患者,心电图V1导联ST段的变化可以预测前降支闭塞的位置,对治疗有一定的指导意义。
Objective To evaluate the value and clinical application of coronary angiography in the determination of the position of lead in the left anterior descending branch of lead V1. Methods A total of 106 patients undergoing coronary angiography with acute anterior myocardial infarction (MI) were enrolled. The incidence of ST segment elevation in V1 lead of electrocardiogram was analyzed. Results Coronary angiography showed that ST segment elevation in V1 lead was significantly higher than or equal to 2.5 mV in patients with proximal anterior descending branches, and ST segment elevation in V1 lead was <2.5 mV in those with distal anterior descending branch. At the same time, the success rate of emergency PCI in the proximal segment was higher than that in the distal segment. Conclusion Acute anterior myocardial infarction in patients with ECG V1 lead ST segment changes can predict the location of anterior descending artery occlusion, the treatment of a certain degree of guiding significance.