Influencing factors analysis of left ventricular function of young and old patients with acute myocardial infarction

JIN Hong-zhen; ZHANG Pan

doi:10.3760/cma.j.issn.1673-4777.2013.06.010

Abstract：Objective To explore left ventricular function for young people and old people with acute myocardial infarction.Methods General clinical data of 94 cases of young people and 111 cases elderly patients with myocardial infarction received in our hospital were collected.The immediately blood glucose levels,lipid levels,uric acid levels,creatine kinase isoenzymes peak,infarction,treatment and cardiovascular events during hospitalization which included serious arrhythmia,Killip class of heart function and death rates were recorded.All patients had echocardiography periodically.Results The triglycerides and creatine kinase isoenzyme (CK-MB) peak in young group are higher than those in the older group [(2.2 ± 0.4) mmol/L vs (1.4 ± 0.6) mmol/L,(190 ± 42) U/L vs (86 ± 20) U/L,P ＜ 0.05 or P ＜ 0.01],and the anterior myocardial infarction is more common [39.4％ (37 cases)vs 20.7％ (23 cases)] ; the Killip class of heart function was better and the mortality was lower [4.2％ (4 cases)vs 13.5％ (15 cases)] compared to the older group.Coronary angiography showed the young group mostly had single-vessel disease[50.0％ (35/70) vs 28.9％ (23/76)] (P ＜ 0.01) and the elderly group had multi-vessel disease.The influence of myocardial infarction for the diastolic function and contractile function in the young group was lower than that the old group (P ＜ 0.05).Conclusions Age,gender,CK-MB enzyme peak and hospitalized immediately blood sugar levels are the main factors of left ventricular function for the young group.Age,emergent PCI,CK-MB enzyme peak,hospitalized immediately blood sugar levels are the main factors of left ventricular function for the old group.