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通过20例急性正后壁心肌梗塞的临床分析,认为右胸前导联V_1、V_2出现高R波,S-T段下降与T波高耸对称,且排除了引起R波增高的其他原因,同时背部导联V_7、V_8、V_9出现病理性Q波及QRS综合波ST段T波进行性演变者,结合临床症状和心肌酶谱分析便可诊断。正后壁心肌梗塞常与其相邻部位下壁、侧壁及右室壁梗塞合并存在,故临床分析研究对整个梗塞面积的估计和预后的判断有着重要的意义。
Through the clinical analysis of 20 cases of acute posterior wall myocardial infarction, it is considered that there is high R wave in the V_1, V_2 of the right thoracic duct, the symmetry of the ST segment descending and the T wave are high, and the other causes of R wave increase are excluded. Associated V_7, V_8, V_9 pathological Q wave and QRS comprehensive ST-wave T-wave progressive evolution, combined with clinical symptoms and myocardial enzymes can be diagnosed. Positive posterior wall myocardial infarction often associated with its adjacent parts of the lower wall, sidewall and right ventricular wall infarction exist, so the clinical analysis of the entire infarct size estimation and prognosis of great significance.