本文42例均为老年人陈旧性心梗(OMI),按梗塞部位不同分为下壁18例、下前壁5、前壁5例。晚电位阳性检出率分别为22％、20％、20％。另外,前同壁6例、广泛前壁5例、正后壁2例、下后壁1例,均未能检出阳性晚电位。从观察结果分析:陈旧性心梗比急性期心梗晚电位阳性检出率低;下壁梗塞检出率高于其它部位梗塞;对老年人心梗后心功能恢复情况的预后观察意义较大。 In this paper, 42 cases of elderly patients with obstructive myocardial infarction (OMI), according to the different parts of the infarction is divided into 18 cases of inferior wall, lower anterior wall 5, anterior wall in 5 cases. Late potential positive detection rates were 22%, 20%, 20%. In addition, there were 6 cases of anterior inferior wall, extensive anterior wall in 5 cases, posterior wall in 2 cases and inferior posterior wall in 1 case, both of which failed to detect positive late potentials. From the observation results, the detection rate of old myocardial infarction is lower than that of late acute myocardial infarction, the detection rate of inferior wall infarction is higher than that of other parts, and the prognosis of senile cardiac function recovery after myocardial infarction is more significant .