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限局性后壁心肌梗塞(简称SPMI)常规12导联心电图不出现异常Q波,主要靠其对应导联“镜面映象”的心电图形—V_1、V_2导联上有高而对称的、直立的T波和ST段的降低(急性期)及V_1V_2R/S>1(除外其他原因)考虑诊断。如同时见V_7、V_8、V_9导联的Q波>0.04秒,Q/R>1/4和ST—T的衍变及酶学改变,即可确诊。但临床常可遇到单纯在V_7、V_8、V_9导联(下称背部
Limitations of the posterior wall myocardial infarction (SPMI) Conventional 12-lead ECG does not appear abnormal Q wave, mainly by its corresponding lead “mirror image” of the ECG-V_1, V_2 leads have high and symmetrical, upright T wave and ST segment reduction (acute phase) and V_1V_2R / S> 1 (except for other causes) to consider the diagnosis. See also V_7, V_8, V_9 lead Q wave> 0.04 seconds, Q / R> 1/4 and ST-T of the evolution and enzymatic changes can be confirmed. However, often encountered in clinical simple V_7, V_8, V_9 lead (hereinafter referred to as the back