Objective Analyze and investigate the influences in cardiac function of patients with acute ST segment elevation myocardial infarction in treatment with coronary intervention.Methods 298 cases of patients with acute myocardial infarction treated in General Hospital of Angang Group from January to October 201 S were taken for this study.Finally 241 cases of patients were enrolled into retrospective study according to the inclusion criteria.Therefor,198 cases were grouped in the observation group and 43 cases...