Ischemic cardiomyopathy is caused by atherosclerotic stenosis of the coronary arteries, resulting in long-term and chronic ischemia of the myocardium, resulting in myocardial damage and heart enlargement, commonly seen in multiple branches of the coronary arteries. The cardiovascular surgery department of the First Affiliated Hospital of Zhengzhou University, Xu Huashan [Treatment] a. Avoid strain, prevent upper sensation; b. Vasodilators: cardiac pain; c. Cardiac insufficiency can take ACEI, and also give small doses of digitalis drugs as appropriate, if swelling, diuretics can be used; d. Arrhythmia according to the type of anti-arrhythmic drug treatment; e. Anticoagulation: aspirin; f. If there is percutaneous intracavitary angioplasty or If there are indications for percutaneous transluminal angioplasty or bypass surgery, this treatment can be carried out. D. Asymptomatic myocardial ischemia Asymptomatic myocardial ischemia refers to the presence of objective evidence of myocardial ischemic attack in coronary heart patients without angina pectoris or angina equivalent symptoms. It is a specific type of coronary artery disease and can exist in all types of coronary artery disease or alone. Treatment: The prognosis of asymptomatic myocardial ischemia is similar to that of angina pectoris, which can cause acute infarction and even sudden death, and is often not taken seriously by doctors and patients because it is asymptomatic. At present, the treatment of coronary heart disease should actively treat asymptomatic myocardial ischemia in addition to angina control. Anti-myocardial ischemic drugs, see “angina pectoris” chapter; Second, the application of calcium blockers: because asymptomatic myocardial ischemia and coronary spasm are more closely related, so the clinical emphasis on the application of calcium blockers, nifedipine, thiodiazepine, take medication as prescribed; Third, percutaneous transluminal angioplasty (PTCA): for severe or multi-branch coronary lesions combined Severe asymptomatic myocardial ischemia may choose PTCA; iv. coronary artery bypass grafting treatment, which may be used for patients with left main coronary artery lesions. The dosage and usage of the above drugs are subject to medical advice.