Cardiac stent surgery is a new technology for treating patients with coronary heart disease carried out in the past 20 years. Because of the advantages of good effect, small trauma, fast recovery and repeatability, it has not only saved the lives of many patients with coronary heart disease and enabled them to return to work and get a better quality of life, but also is very popular among patients and their families. However, stenting surgery has certain applicability and scope, some patients and families with coronary heart disease do not understand it very well, and there are many questions about this technology, and some patients and families have too high expectations of this technology. The current situation of coronary heart disease With the improvement of people’s living standard, the accelerated pace of life, the increase of various kinds of pressure and people eat too much high-calorie food, resulting in irregular life, mental tension, nervous disorders and exercise reduction, resulting in hypertension, hyperlipidemia, obesity, diabetes, these factors susceptible to coronary heart disease greatly increased, making coronary heart disease has become one of the most threatening diseases at home and abroad. The incidence of coronary heart disease is increasing year by year and the trend is younger. The full name of coronary heart disease is coronary atherosclerotic heart disease, which includes five conditions: angina pectoris, myocardial infarction, arrhythmia, heart failure and primary cardiac arrest, of which the most common and the most progressed are angina pectoris and myocardial infarction. The underlying cause of coronary heart disease is atherosclerosis, so the goal of coronary heart disease treatment is to interrupt the process of atherosclerosis. At present, the research reports of statin lipid-lowering drugs and angiotensin-converting enzyme inhibitor drugs show that the above two types of drugs have the effect of stopping and inhibiting atherosclerosis, which is a blessing for coronary heart patients. However, these drugs need to be applied for many years to see the effect, but not “instantly”. Some patients may not be able to use these drugs because of side effects such as abnormal liver function and cough. In addition, without good cooperation in all aspects, such as improving bad habits, controlling blood pressure, controlling blood sugar, reducing weight, etc., it is difficult to rely on drug therapy alone. Furthermore, most of these drugs are currently imported and have a high price point, which limits their use to certain patients. The effective combination of stent therapy and the above mentioned drugs is one of the most advanced and complete treatments available to patients with coronary heart disease. The procedure of cardiac stenting involves puncturing a blood vessel, traveling the catheter through the vessel, reaching the opening of the coronary artery, using a special delivery system to deliver the stent to the site where it needs to be placed, placing and withdrawing the catheter, and ending the procedure. The patient undergoes the procedure under local anesthesia and is usually out of bed 24 hours after the sheath is removed from the punctured vessel, and the procedure is not complicated. However, the patient is a coronary heart patient and the operation site is a blood vessel in the heart, so it must be emphasized that coronary heart stenting is a risky operation, because the stent opens and unblocks the blocked or soon-to-be-blocked blood vessel, it does not mean that the stenosis or blockage will not occur again in this blood vessel or this site. In addition to the fact that stenting cannot “eradicate” coronary heart disease, another unsatisfactory aspect is that atherosclerotic plaques may continue to “grow” inside the stent, making the lumen of the vessel narrow again. In recent years, the hot issue in the research of coronary intervention is how to reduce the restenosis in the stent, and the research result is the birth of drug stent. Drug stents are coated with drugs to inhibit restenosis in the stent using a special production process, and are gradually released during the time period when restenosis is likely to occur. At present, in addition to imported drug-coated stents, domestically produced drug-coated stents have also been used in clinical practice. From the analysis of published research results at home and abroad, the incidence of in-stent restenosis has been reduced from about 20% to less than 10% by drug-coated stents. In terms of numbers, this is a breakthrough progress in medicine. However, for every patient, the fact that the restenosis incidence is not 0 means that someone else will develop in-stent restenosis. Currently, the patients who benefit most from drug-coated stents are diabetic patients and patients with complex vascular disease. Some misconceptions about coronary stent therapy: Myth 1, stent life cannot be permanent Some patients worry about the life span of stents, which is actually unnecessary. At present, stents are made of medical metal materials, and stents are wrapped around special balloons before release. During the release process, it is necessary to use greater tension to open the balloons so that the stents are tightly bonded with and set into the vessel wall, so the stents are lifelong and safe in the body, and even if stenosis occurs again in this part, balloon expansion and stent placement can be performed again in this part. Myth 2: The more stents the better Because stenting is performed inside the blood vessel through the blood vessel, the stenting treatment is adapted to the place where the local lesion occurs in the blood vessel. In principle, as long as the lesion is localized, it can be treated with stents, and should not be calculated by the number of stents. However, for patients with poor economic conditions, stent treatment is after all more expensive, and generally speaking, the treatment cost of more than 3 stents will be greater than that of cardiac surgical bypass surgery. For some patients with many lesions and complex lesions, stenting often cannot be done in one visit and needs to be done in stages, and the more stents there are, the greater the chance of stent restenosis will be. However, it does not mean that the heavier and more complicated the lesion is, the more treatment is abandoned. Patients with angina pectoris and partial myocardial infarction do not have a shorter life expectancy than normal people under proper treatment. Myth 3: Stenting is the only option In recent years, the development of stenting surgery has been rapid, and some lesions that were not suitable or could not be treated with stenting in the past are becoming new directions for stenting research, for example, left main stem lesions, bifurcation lesions, and so on. However, any technology has its own advantages and defects, and patients have their own special conditions. When choosing a treatment method, one must make a scientific judgment in combination with one’s own situation, and one should not accept or reject stent surgery in its entirety. There are three major types of treatment for coronary artery disease: drug therapy, medical intervention, and surgical treatment, of which drug therapy is fundamental, regardless of medical intervention – stent therapy or surgical bypass surgery, are inseparable from drug therapy, while in the choice of surgery, surgery has the ability to solve many lesions at once, while dealing with extravascular lesions, for In terms of surgical options, surgery has the advantage of resolving more lesions at one time, dealing with extravascular lesions at the same time, and for left main lesions and bifurcations. In addition, cardiac surgery has been evolving in recent years, and reducing surgical trauma and complications is the development direction of cardiac bypass surgery. At present, cardiac bypass surgery with a non-stop beating heart is increasingly used in clinical practice, and it is believed that more advanced methods and techniques will be available for patients in the near future.