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分析了１１５例心肌梗塞病人心室晚电位资料，结果显示，心肌梗塞病人晚电位检出率为１１．３％，心肌梗塞病人晚电位检出与左室射血分数有明确相关性。心肌梗塞急性期静脉内溶栓组（１８例）ＩＲＡ开放率（８８．９％）高于未溶栓组（４７．４％）（Ｐ＜０．０５）。溶栓组晚电位检出率低于未溶栓组（５．６％ＶＳ１２．４％），ＩＲＡ开放组晚电位检出率也低于ＩＲＡ闭塞组（５．９７％ＶＳ１８．７５％），但仅以ＩＲＡ开放与闭塞组间差异有统计学显著性（Ｐ＜０．０５），尤其在前壁心肌梗塞、ＬＡＤ单支病变时，ＩＲＡ闭塞组晚电位检出率高于ＩＲＡ开放组。本文结果提示，溶栓、ＩＲＡ开放有可能改善心肌梗塞病人心电稳定性，从而改善预后。
115 patients with myocardial infarction were analyzed ventricular late potential data, the results showed that the late detection rate of myocardial infarction patients was 11.3%, late detection of myocardial infarction patients with left ventricular ejection fraction has a clear correlation. Intravenous thrombolysis in acute myocardial infarction group (18 cases) IRA open rate (88.9%) was higher than the group without thrombolysis (47.4%) (P <0.05). The detection rate of late potentials in thrombolysis group was lower than that in non-thrombolysis group (5.6% VS 12.4%), and the late potentials in IRA open group were also lower than that in IRA occlusion group (5.97% VS 18.75%), However, the difference between open and occluded group was statistically significant only (P <0.05). Especially in the anterior wall myocardial infarction and single LAD lesions, the detection rate of late potentials in IRA occlusion group was higher than that in IRA open group. Our results suggest that thrombolysis, IRA open may improve myocardial infarction patients ECG stability, thereby improving the prognosis.