Clinical feature and prognosis in young patients with acute myocardial infarction

Objective To investigate the risk factors,clinical feature,the results of coronary angiography( CAG) and prognosis in young patients with acute myocardial infarction( AMI). Methods Twenty-two patients( younger than 40 years old) with acute myocardial infarction were collected as young group. AMI patients whose ages were older than 40 years old were collected as control group.The data of the risk factors,clinical feature and coronary angiography and prognosis were collected and analyzed between the two groups. Results The young patients had higher ratio of smoking,total cholesterol,obese and family history( P 0. 05). However,the ratios of hypertension and diabetes mellitus in young patients were less than those in old patients( P 0. 05). Coronary angiography indicated the young patients had more normal or single-vessel diseases while the older patients had more multi-vessel diseases( P 0. 01). The younger patients had more risk factors,more typical stethalgia and more had STEMI than the old patients( P 0. 01). Compared with control group,the patients had lower severe adverse events and mortality in young group( P 0. 05). Conclusions Compared with old patients,smoking,total cholesterol,obese and family history are major risk factors in younger patients. However,young patients have more typical clinical and electrocardiogram feature and better prognosis than the old ones.