All the complications from 535 patients undergoing selective coronary artery angiogram by using Judkins method have been documented during and after the procedures and compared with collected data from Chinese papers published before 1999.The main complications included death, acute myocardial infarction,acute heart failure, severe arrhythmia,and peripheral vessel complication.In 535 patients the main complication rate was 2 99%(16 of 535),in which ventricular fibrillation rate accounted for 0 37%(2 of 535),severe bradycardia for 1 31%(7 of 535),and peripheral vessel complications for 1 31%(7 of 535).There was no death,no AMI, no heart failure,no artery embolus,no aortic dissection.Compared with 3 01% (141 of 4679) of complications for collected data from domestic literature,there was no significant difference.The data suggested that with effective preventive measures,coronary artery angiogram is a reasonably safe proceduce,although there is still a possibility to have server complications.