Objective To explore the difference of risk factors and clinical features of acute myocardial infarction(AMI) between elderly and non-elderly patients. Methods A total of 312 AMI inpatients were divided into 2 groups:non-elderly group( <60 years,n = 124)and elderly group(≥60 years,n = 188). The risk factors,clinical features,complications and angiographic data were compared. Results Non-elderly patients were predominantly male(84.7% ). Smoking,family history of coronary heart disease and higher psychological pressure were more frequent in non-elderly group than in elderly group. Non-elderly group had higher triglyceride(TC) level. Hypertension and diabetes mellitus were more prevalent in elderly patients (P < 0.05). Non-elderly patients were more likely to have single-vessel disease (56.1% tis 13.7% ,P <0.05),atypical clinical symptoms,less complications and better prognosis. Elderly patients had a higher prevalence of three-vessel disease(53.4% vs 15.9% ,P <0.05) .atypical clinical symptoms, more complications and higher mortality rate( 13.3% vs 4.0% ,P <0.05). Conclusion The risk factors and clinical features are different between elderly and non-elderly patients with AMI. Valid intervention measures for risk factors and therapy should be taken.%目的 探讨老年和非老年急性心肌梗死(AMI)的危险因素及临床特点差异.方法 312例初发AMI患者分为非老年组(年龄＜60岁,n＝124)和老年组(年龄≥60岁,n＝188),比较分析两组间危险因素、临床表现、并发症及冠脉病变的特点.结果 非老年组绝大多数为男性(84.7％),吸烟史、冠心病家族史阳性及心理压力较大者比例、甘油三酯水平显著高于老年组,而高血压、糖尿病史在老年患者更为多见,差异均有统计学意义(P＜0.05)；非老年组冠脉病变以单支为主(56.1％vs13.7％,P＜0.05)、症状典型、并发症少、预后好,老年组冠脉病变以三支多见(53.4％vs15.9％,P＜0.05)、症状不典型、并发症多、病死率高(13.3％vs4.0％,P＜0.05).结论 老年与非老年AMI患者的危险因素及临床特点不同,应有针对性地进行危险因素干预及治疗.
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