Myocardial ischemia after cardiac repair surgery should be treated with general therapy, medication or interventional therapy according to specific conditions. 1. General treatment: for example, diet, low fat and low salt diet; life, work and rest, appropriate exercise, quit smoking and drinking, and keep a happy mood. 2. Drug therapy: such as the use of isosorbide mononitrate and other drugs to expand coronary arteries, improve myocardial ischemia, and the use of aspirin, atorvastatin and other drugs to prevent myocardial infarction. Specific medication should follow the doctor’s instructions, do not take on their own, and pay attention to headache, dizziness, bradycardia, gastrointestinal discomfort, bleeding, myalgia and other side effects during the use of drugs. 3. Surgery: If the effect of medication is not good and the patient’s condition is serious, it is recommended that coronary angiography be performed in time, and stents or coronary artery bypass grafting be placed if necessary. When myocardial ischemia is diagnosed, it is recommended to consult a doctor in time and standardize the treatment under the doctor’s guidance, so as not to cause serious complications such as heart attack.