AimTo evaluate the long term clinical results in elderly patients(＞75 years) with coronary artery disease after percutaneous coronary intervention.MethodsFrom January 2008 to January 2010,351 patients underwent percutaneous coronary intervention in the Chinese PLA General Hospital were divided into two groups, the number of normal group (≤75 years old) was 180, the elderly group (>75 years old) was 171, general clinical data and the result of coronary angiography were recorded, the rate of myocardial infarction, repeated percutaneous coronary intervention and adverse events after percutaneous coronary intervention were detected.ResultsIn age>75 years old group, the incidence of hypertension and diabetes increased(p<0.05),they had multiple coronary artery lesion,the rate of left circumflex artery and right coronary artery lesion were significantly higher than the normal group(p<0.05), cardiac mortality, repeated percutaneous coronary intervention, coronary artery bypass rate increased significantly in elderly group(p<0.05).ConclusionMany elderly patients with coronary heart disease suffered from hypertension and diabetes,coronary artery lesions in elderly patients were more complex.Cardiac mortality, repeated percutaneous coronary intervention, coronary artery bypass rate increased in elderly group,PCI can not reduce the long-term mortality.