Objective To analyze the correlation between serum homocysteine level and reperfusion arrhythmias during emergency percutaneous coronary intervention(PCI). Methods 158 acute myocardial infarction patients who undergoing emergency PCI were divided into arrhythmia group with 78 cases and control group with 80 cases. The clinical data such as serum creatinine,uric acid,total cholesterol,low density lipoprotein cholesterol,high sensitive C reactive protein,fasting blood glucose and plasma homocysteine level wer...