There are three main types of treatment for coronary artery disease as follows: Medication: medication is used to reduce the load on the heart, dilate the coronary arteries, improve the blood supply to the heart muscle, and reduce the degree of myocardial ischemia and hypoxia to control the symptoms. Interventional treatment: Dilation of coronary artery stenosis (coronary angioplasty) by means of cardiac catheterization (puncture) under X-ray fluoroscopic conditions, or further implantation of stents (coronary stenting) to expand the lumen to prevent vascular retraction, keep the stenosis open, and improve myocardial blood supply. Surgical treatment: Coronary artery bypass grafting, also called coronary artery bypass grafting or heart bypass grafting. It often uses blood vessels from other parts of the body (such as the internal mammary artery, saphenous vein, radial artery) to graft to the diseased coronary artery, bypassing the stenosis and providing blood to the ischemic myocardium in an “alternative route” (usually called a bridge vessel) to immediately restore or increase blood flow to the ischemic myocardium, thereby relieving angina, improving heart function, and greatly It is the most effective treatment for coronary heart disease.