In terms of cardiovascular disease research, the biggest research advancement and the most prominent medical technology advancement in the last 20 years is cardiac intervention. When a blood vessel in the heart has excessive stenosis that affects the blood supply to the heart, a stent can be placed in that area by interventional means, so that the blood vessel in that area can be widened to maintain a near normal blood supply, which is called cardiac stenting. This is called heart bypass surgery, commonly known as coronary artery bypass grafting, which is internationally recognized as the most effective treatment for coronary artery disease, and furthermore, coronary artery bypass grafting or heart bypass surgery is performed when one or more coronary arteries are severely blocked or the blood supply is very insufficient. A thorough examination should be performed before surgery to confirm the exact location of the blockage. When the procedure is performed, the blood supply to the body from the heart is cut off, so a heart-lung machine is used to circulate the blood outside the body to protect the normal movement of vital organs such as the brain. From the above description, the complexity of stenting and bypass is different. Obviously, the latter is much more complicated than the former. But once a stent or a heart bypass is done, is it a done deal? The answer is no. There are many patients who have undergone stenting or bypass, and within just a few years after the procedure, they develop stenosis again, causing severe blood supply deficiencies and serious cardiac events such as angina pectoris or sudden death. As a physician, this is the last thing I would want to see. Therefore, in the current situation, it is important to educate patients who have undergone stenting or bypass surgery, and even the entire population who have reached middle age, about cardiovascular diseases, especially about the prevention and treatment of coronary heart disease. It is important to remember that cardiac stenting and heart bypass are a last resort. Once this act of last resort is implemented, the following points should be kept in mind: 1, cardiac intervention is a clinically effective treatment for coronary heart disease; 2, cardiac intervention should only be considered when the coronary arteries are beyond repair; 3, cardiac intervention, whether stent or bypass, once implemented, must establish the concept of lifelong maintenance and protection. Never think that the stents and bypasses are durable and will never break. 4, heart stents and bypasses are also very delicate. It is afraid of hypertension, hyperlipidemia, hyperglycemia, high homocysteine, etc. The danger of these factors is that they will make the stent or bypass become narrow again, which will be coated with thick plaque-like material and become the cause of stenosis, thrombosis and infarction, which is a great thing! 5, once the cardiac intervention is implemented, it is necessary to establish the idea of long-term medication and regular review. No matter how busy you are! 6, after cardiac intervention, it is recommended to seek a specialist or geriatrician comprehensive treatment is the best policy! And the best fixed experts, fixed doctor consultation is the most secure!