Clinical characteristics and in-hospital outcome among young patients with acute myocardial infarction

Objective To investigate clinical characteristics and in-hospital mortality in young patients with acute myocardial infarction.Methods The 614 patients with ST elevated myocardial infarction were divided into young group (23-44 years,n =96) and elderly group (60-74 years,n =518).Comparison was made on clinical characteristics (gender,smoking,chemical examination,comorbidity) ,risk factors,complications and in-hospital mortality.Results (1) Compared with elderly group,young group had less female patients (4.2% vs.34.4% ,P 0.001 ) and less cerebral vascular disease (1.1% vs.15.3% ,P 0.001 ).The prevalences in family history of early onset cardiovascular disease (13.0% vs.5.6%,P = 0.021),hyperlipidemia (56.7% vs.34.9%,P0.001),smoking (82.3% vs.42.1%,P 0.001) and multiple risk factors (40.1% vs.29.0% ,P =0.021 ) were higher in young group than in elderly group.(2) Most young patients had single vessel disease according to coronary angiography.(3) There were no cardiogenic shock and in-hospital death occured in young group.Conclusions Smoking and hyperlipidemia are the most common risk factors for young patients with acute myocardial infarction.In-hospital outcome of these patients is relatively better than elderly patients.