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目的 :探讨心电图ST段改变与冠状动脉病变部位的关系。方法 :对 76例急性前壁心肌梗死 (AA MI)病例进行回顾性分析。结果 :① 76例患者中 ,4 2例为前降支单支病变。 34例为前降支并发多支血管病变。根据前降支不同病变部位分为两组 :前降支近段病变组 (PD)、前降支远段病变组 (DD) ,两组间比较 :PD组在Ⅰ、aVL导联出现ST段抬高明显增加 ,差异有非常显著性意义 (P <0 .0 1) ,在Ⅱ、Ⅲ、aVF导联ST段压低明显增加 ,差异有显著性意义 (P <0 .0 5 )。② 34例前降支并发多支血管病变中 ,PD组同DD组比较 ,Ⅰ、aVL导联ST段抬高≥ 1mm者明显增加 ,Ⅲ、aVF导联ST段压低≥ 1mm者明显增加。Ⅱ导联压低≥ 1mm者有增加趋势 ,但差异无显著性意义 (P >0 .0 5 )。结论 :AAMI前降支阻塞时行心电图检查可以预测病变部位 ,Ⅰ、aVL导联ST段抬高 ,Ⅱ、Ⅲ、aVF导联ST段下移同前降支近段病变存在良性相关性。可视为对应性改变。前降支远段病变时Ⅱ、Ⅲ、aVF导联ST段常常在等电位线或抬高
Objective: To investigate the relationship between ST segment changes in ECG and coronary lesions. Methods: A retrospective analysis of 76 patients with acute anterior myocardial infarction (AA MI) was performed. Results: Among the 76 patients, 42 cases were single anterior descending coronary artery disease. 34 cases of anterior descending artery complicated with multivessel disease. According to the different anterior descending coronary artery lesions were divided into two groups: proximal anterior descending artery lesion group (PD), anterior descending branch distal lesion group (DD), between the two groups: PD group Ⅰ, aVL leads ST segment There was a significant difference between the two groups (P <0.01). The depression of ST segment in group Ⅱ, Ⅲ, aVF was significantly increased, the difference was significant (P <0.05). In 34 cases of anterior descending branch complicated by multivessel disease, compared with DD group, there was a significant increase in ST segment elevation of Ⅰ and aVL leads in STP group, while ST segment depression of ST segment in Ⅲ and aVF leads to a significant increase. Ⅱ lead compression ≥ 1mm increased trend, but no significant difference (P> 0.05). Conclusion: AAMI anterior descending branch occlusion can be used to predict the lesion by electrocardiogram. The ST segment elevation of leads a and aVL leads to a positive correlation between the anastomosis of ST segments and the proximal segment of anterior descending branches in Ⅱ, Ⅲ and aVF leads. Can be considered as a corresponding change. Anterior descending branch distal lesions Ⅱ, Ⅲ, aVF lead ST segment often in the equipotential line or elevated