Effects of Yangxinshi Pills on the Exercise Tolerance Compared With Trimetazidine in Patients After PCI

Inclusion Criteria: * Age 18\~ 75, gender is not limited； * The patient within two month after PCI operation for the first time； * The patient had 1-2 coronary artery lesions with complete revascularization：At least one drug eluting stent was implanted，and residual coronary artery stenosis after PCI \<30%； * Have not revascularization plan within 6 months； * After being evaluated by clinicians on aerobic exercise ability，patients can carry out early rehabilitation in hospital and exercise cardiopulmonary rehabilitation outside the hospital； * Coronary heart disease patients with Qi Deficiency and Blood Stasis Syndrome； * Participants voluntarily participated in and signed informed consent； Exclusion Criteria: * Patients was diagnosed with AMI as the first diagnosis in the past month, and then hospitalized for PCI operation； * Patients with absolute and relative contraindications in cardiopulmonary exercise test； * Any drug allergy to Yangxinshi pill and trimetazidine； * Patients have taken regular Yangxinshi pill, trimetazidine or other Chinese patent medicine regularly in the past month； * Patients are intolerant of aspirin, clopidogrel, statins, beta blockers or ACEI drugs (such as massive hemorrhage, severe hypotension, etc.)； * History of stroke (cerebral hemorrhage, subarachnoid hemorrhage, cerebral thrombosis, cerebral embolism and stroke of unknown type) or lower extremity arterial disease in the past 6 months * Active bleeding disease within 6 months； * Combined with severe liver and kidney dysfunction (creatinine clearance ≤ 30ml / min or in the active stage of kidney disease, serum aminotransferase ≥ 3 × upper limit of clinical reference), other lifethreatening serious primary or psychiatric diseases and malignant tumors * Hemoglobin \<90 g/L； * Cardiac function (NYHA) grade IV or echocardiography LVEF \< 30%； * Venous blood pressure \<100/60 mmHg； * In past 6 months, have medical history of: pregnancy, prepare or suspected of pregnancy, abortion, breastfeeding or after childbirth * The expected survival period is less than one year.； * Patients who are participating in other clinical studies.