Clinical study of Shenyuan Yiqi Huoxue Capsule on cardiopulmonary motor function and quality of life in patients with Ischemic Cardiomyopathy

INTERVENTION: The experimental group:Shenyuan Yiqi Huoxue Capsule;The control group:Shenyuan Yiqi Huoxue Capsule simulant; CONDITION: Ischemic cardiomyopathy PRIMARY OUTCOME: The MOS item short from health survey;Minnesota living with heart failure questionnaire;cardiopulmonary motor function; SECONDARY OUTCOME: Quantitative integral of main symptoms in traditional Chinese Medicine;Echocardiography;NT‐pro BNP; INCLUSION CRITERIA: ? Meeting the diagnostic criteria of ischemic cardiomyopathy, and the TCM syndrome differentiation type belongs to Qi deficiency and blood stasis type. ? Recent or previous echocardiography showed left ventricular ejection fraction (LVEF)<40%, NYHA cardiac function grade II‐III. ? Coronary angiography or CT showed multiple vessel stenosis, or a history of coronary revascularization, or a clear history of myocardial infarction. ? Between the ages of 18 and 75. ? Patients and family members gave informed consent and signed informed consent.