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目的观察急性心肌梗死前心绞痛发作与梗死范围及近期预后的关系。方法选择125例急性心肌梗死患者,根据梗死前72h以上有无心绞痛病史,分为观察组(有心绞痛)48例和对照组(无心绞痛)77例,对两组的梗死面积、并发病和病死率进行统计分析。结果观察组梗死面积小(两组间有显著差异,P<0.05),住院期间严重心律失常、心力衰竭、心源性休克发生率及病死率均低于对照组(P<0.05)。结论梗死前心绞痛对心肌有明显保护作用。
Objective To observe the relationship between the onset of angina pectoris before acute myocardial infarction (MI) and infarct size and prognosis. Methods A total of 125 patients with acute myocardial infarction (AMI) were enrolled in this study. According to the history of angina pectoris above 72h before infarction, 48 patients in the observation group (with angina pectoris) and 77 in the control group (without angina pectoris) were selected. The infarction area, Rate for statistical analysis. Results The area of infarction in the observation group was small (P <0.05 for both groups). Serious arrhythmia, heart failure, cardiogenic shock and mortality during hospitalization were lower than those in the control group (P <0.05). Conclusion Preinfarction angina has obvious protective effect on myocardium.