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回顾性分析了38例老年及21例青年急性心肌梗塞（AMI）患者的临床及冠状动脉造影特点。结果表明：青年组吸烟者占66.7％，饮酒占52．4％，明显高于老年组（P＜0．025）。青年组AMI有典型胸痛者占85．7％，有明显诱因者占66．7％，以AMI为首发症状者占61．7％，均高于老年组（P＜0．01）。老年组和青年组AMI并发症分别为73．7％和33．3％（P＜0．01），病死率分别为31．6％和143％（P＜0．05）。冠状动脉造影表明，老年组多支冠状动脉病变占56．5％，青年组则以单支血管病变为主，占667％。两组室壁瘤形成率无显著差别。影响室壁瘤形成的主要因素为高血压病、梗塞面积和侧支循环状态。
The clinical and coronary angiographic characteristics of 38 elderly patients and 21 young patients with acute myocardial infarction (AMI) were retrospectively analyzed. The results showed that young people smokers accounted for 66.7%, drinking 52.4%, significantly higher than the elderly group (P <0.025). The young group had typical AMI with chest pain accounted for 85.7%, 66.7% with obvious cause, and 61.7% with AMI as the first symptom, all higher than the old group (P <0.01). The AMI complications in the elderly group and young group were 73.7% and 33.3%, respectively (P <0.01), and the mortality rate was 31.6% and 143% respectively (P <0.05). Coronary angiography showed that multiple coronary artery lesions in the elderly group accounted for 56.5%, while young patients with mononuclear lesion, accounting for 667%. There was no significant difference between the two groups in the formation rate of aneurysm. The main factors affecting the formation of aneurysm are hypertension, infarct size and collateral circulation.