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目的分析左主干、前降支近端或三支病变冠心病心绞痛患者的心电图改变。方法13例冠脉造影诊断为左主干、前降支近端或三支病变的患者,对其静息时、心绞痛发作时心电图有无aVR、V1导联的ST段抬高及临床资料进行分析。结果胸痛发作时11例出现了aVR、V1导联典型改变,静息时2例aVR、V1导联改变。结论心电图aVR、V1导联ST段抬高,尤其STaVR>STV1,V4～V6导联ST段下移,合并Ⅱ、Ⅲ、aVF导联或Ⅰ、Ⅱ导联ST段下移与冠脉左主干、前降支近端严重狭窄及三支病变有良好的相关性。
Objective To analyze the changes of electrocardiogram in patients with coronary artery angina pectoris in the left main trunk, proximal descending artery or three lesions. Methods Thirteen patients with left main artery, proximal anterior descending artery or three lesions underwent coronary angiography were retrospectively analyzed for resting atrial fibrillation (ECG) at baseline, presence of aVR in ECG, ST segment elevation in V1 lead, and clinical data . Results 11 cases of aVR occurred during the onset of chest pain. The typical changes of V1 lead and 2 cases of aVR and V1 leads at rest. Conclusion ST-segment elevation of aVR and V1 lead of ECG, especially in STaVR> STV1 and V4 ~ V6 lead ST-segment down, combined with lead of Ⅱ, Ⅲ, aVF or lead of ST segment Ⅰ, Ⅱ and coronary artery left main stem , Proximal descending anterior descending artery stenosis and three lesions have a good correlation.