Objective To investigate the clinical effect of traditional Chinese medicine（TCM） syndrome differentiation in the treatment of angina pectoris after percutaneous coronary intervention（PCI）. Methods A total of 62 patients with angina pectoris after PCI were randomly divided into a treatment group（31 cases） and a control group（31 cases）. The control group was given conventional treatment

and the treatment group was given corresponding TCM syndrome differentiation treatment on the basis of the control group. Both groups were treated for 4 weeks. The efficacy of TCM syndrome

angina pectoris and electrocardiogram were compared between the 2 groups. The nitroglycerin use

blood lipids [triglyceride（TG）

high density lipoprotein cholesterol（HDL-C）

total cholesterol（TC）

low density lipoprotein cholesterin（LDL-C）]

high-sensitivity C-reactive protein（hs-CRP） and D-dimer（DD） levels were compared before and after treatment. Results In comparison of the efficacy of TCM symptom（87.10% in the treatment group and 58.06% in the control group）

angina pectoris（80.65% in the treatment group and 70.97% in the control group） and electrocardiogram（77.42% in the treatment group and 67.74% in the control group）

the treatment group was all superior to the control group（P<0.05）. After treatment

nitroglycerin usage

TC

TG

LDL-C

DD and hs-CRP of the 2 groups were significantly decreased than before（P<0.05）

and the level of above indexes of the treatment group was lower than those of the control group（P<0.05）. After treatment

HDL-C of the 2 groups was significantly increased than before（P<0.05）

and the level of HDL-C of the treatment group was higher than that of the control group（P<0.05）. Conclusion TCM syndrome differentiation treatment can significantly improve TCM symptoms

relieve angina pectoris

improve blood lipid levels

reduce hs-CRP and DD levels

and reduce the amount of nitroglycerin in patients with angina pectoris after PCI.