There is currently no cure for coronary heart disease. The survival time of patients with coronary heart disease varies according to the severity of the disease. Mildly ill patients generally do not affect life expectancy, while severely ill patients have a low survival rate and may even die suddenly. Coronary heart disease is a disease in which the coronary arteries are blocked by atheromatous plaques, leading to insufficient blood supply to the heart muscle. It cannot be cured under current treatment, but it can be alleviated and slowed down by medication and surgery. If the disease is detected in time and treated with strict medical therapy, the survival rate of coronary artery disease is very high, ranging from several years to several decades. For severely ill patients, coronary angiography and stenting or coronary artery bypass grafting are usually performed, which can significantly improve symptoms and prognosis. However, for patients who have already had a myocardial infarction, especially a large myocardial infarction, where cardiac function is significantly compromised resulting in heart failure, the patient survival rate is lower. When the diagnosis of coronary artery disease is made, the patient needs to actively seek medical attention to avoid progression to the terminal stage.