If a patient has extensive myocardial ischemia, the condition is often considered to be more serious and a clear diagnosis should be made to determine whether the patient’s extensive myocardial ischemia is caused by a serious lesion in the coronary vessels. It is generally recommended that patients can first undergo coronary CT examinations to assess whether the patient has coronary artery disease and the severity of the coronary artery disease. If extensive myocardial ischemia is indeed caused by coronary artery disease, it is recommended that the patient should take medications such as biaxin, atorvastatin, bisoprolol, prilosec, or sartans. If the patient still has uncomfortable episodes despite taking the above drugs, it is recommended to apply a combination of Vanzantel as well as isosorbide mononitrate, which can all prevent the progression of the disease. Patients must be advised to quit smoking and alcohol, exercise and lose weight, regular work and rest, and keep a happy mood, which can better improve the situation of myocardial ischemia, and must control blood pressure, blood lipids, heart rate, and blood sugar during weekdays.