急性正后壁心肌梗塞20例临床分析

Clinical Analysis of Acute Strictly Posterior Wall Myocardial Infarction in 20 Patients

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。

Charicteristics of acute strictly posterior wall myocardial infarction were analysed in 20 patients. The results showed that high R-wave (hut excluding other causes of R wave elevating), decline of S-T segment, and high nad symmetric T wave occurred in V_1, V_2 leads in patients with actute strictly posterior myocardial infarction. The sequent changes of QRS complex, S-T segment, T wave, and pathological Q wave in V_7, V_8, V_9 leads were also identified by the cases analysis. In term of the electrocardiographic features, Combining the clinical symptoms, and myocardial enzymology, the diagnosis of acute strictly posterior myocardial infarction may be made. Additionally, acute strictly posteior wall myocardial infaction was often accompanied by infarction of near parts such as inferior, lateral, and right ventricular walls. Therefore, a analysis of total clinical datum may be significant for us in estimating the infarction size and determining the prognosis in these patients.