Clinical characteristics of premature acute ST-elevatied myocardial infaction

Objective To analyze the distribution of traditional risk factors and biochemical indicators in patients with premature acute ST-elevated myocardial infarction（STEMI） and the clinical characteristics of coronary arteriography. Methods Clinical data（including traditional risk factors,biochemical indicators and coronary arteriography） about patients with premature and non-premature STEMI were collected and comparatively analyzed. Results The rates of smoking,metabolic syndrome and body mass index（BMI） were higher in patients with premature STEMI than in those with non-premature STEMI（56.8% vs 38.0%,55.6% vs 33.0%,25.94±3.15 vs 24.75±3.66,P＜0.05）.The rate of lesions involving asingle coronary branch was higher in patients with premature STEMI than that of lesions involving three coronary branches in those with non-premature STEMI（58.0% vs 31.0%,21.0% vs 44.0%,P＜0.05）.Logistic regression showed that smoking and metabolic sydrome were the independent risk factors for premature acute myocardial infaction with an OR value of 2.54 and 2.82,respectively. Conclusion Smoking and metabolic sydrome play an important role in occurrence and progression of premature acute myocardial infaction.Weight reduction and smoke abatement are of great importance for reducing the occurrence of cardiovascular events in middle-aged and young patients with metabolic sydrome.