Clinical Characteristics and Prognosis of Patients with Acute ST-Elevation Myocardial Infarction Having Normal Coronary Arteriongraphy

SU Yan-yan; GAO Ya-song; DING Chao

doi:10.3969/j.issn.1002-3429.2018.02.022

Abstract：Objective To investigate clinical characteristics and prognosis of patients with acute ST- elevation myo-cardial infarction (STEMI) having normal coronary arteriongraphy (CAG). Methods A total of 518 patients with primary STEMI undergoing CAG examinations were divided into normal CAG group (n=28) and abnormal CAG group (n=490), and then general data, pathogenesy characteristics, risk factors of coronary heart disease, complications and heart function conditions after admission and prognosis were analyzed between the two groups. Results Compared with those in abnormal CAG group,in normal CAG group, CAG were mostly found in male, and the age of onset was younger; most patients had strenuous activity or emotional agitation before onset,incidence rate of anterior wall infarction was lower,while incidence rate of inferior wall infarction was higher,and the rate of patients having angina pectoris history was lower;rates of electrocardio-gram fallout larger than 50% and chest pain remission larger than 5 scores before operation were higher;rate of patients having diabetes,hypertension and hyperlipidemia histories were lower,while rate of patients having smoking history was higher;after infarction,incidence rates of angina pectoris,cardiac function Killip larger than grade 2,segmental ventricular wall abnormal motion and rehospitalization for ischemia were significantly lower, while left ventricular ejection fraction (LVEF) score was significantly higher (P<0.05). Conclusion Patients with acute STEMT having normal coronary arteriongraphy are mostly young men having fewer risk factors of coronary artery disease,and smoking and stress reaction are the main risk factors,and prognoses of the patients are good.