Objective To investigate the clinical features of acute myocardial infarction with J wave syndrome. Methods A total of 131 cases of STEMI patients were collected,and according to whether J wave happened,they were divided into study group( with J- wave) and the control group( no J- wave). J- wave morphology,site of infarction,coronary infarction,and malignant arrhythmia were compared between two groups. Results a total of 41 cases of J wave syndrome appeared in STEMI patients,accounting for 31. 29% of the to...