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患者男性,50岁。劳累、情绪激动后出现胸闷近1月,持续数 min,休息后可自行缓解。半年前体检心电图提示前壁心肌供血不足,当时无症状。临床诊断:冠心病可疑。心电图(图1)见Ⅰ、aVL 呈 qR 型,Ⅱ、Ⅲ、aVF 呈 rS 型,心电轴左偏-54°,V_1呈 R 型,V_1、V_2的 R 波大于 V_6的R 波,ST 段下移超过0.05mV,T_(V_1-V_6)倒置。心电图诊断左前分支传导阻滞,可疑左中隔支传
Male patient, 50 years old. Tired, chest tightness after emotional agitation nearly 1 month, sustained several minutes, rest can relieve themselves. Physical examination ECG six months ago prompted anterior myocardial insufficiency, was asymptomatic. Clinical diagnosis: coronary heart disease suspicious. The electrocardiogram (Figure 1) showed Ⅰ, aVL showed qR type, Ⅱ, Ⅲ, aVF showed rS type, ECG left axis deviation of -54 °, V_1 was R type, V_1, V_2 R wave greater than V_6 R wave, ST segment Down more than 0.05mV, T_ (V_1-V_6) inversion. ECG diagnosis of the left anterior branch block, suspected left septal branch pass