After coronary intervention (percutaneous coronary angioplasty or stenting, PCI), the narrowing or occlusion of the coronary artery lumen is lifted, the blood supply to the myocardium at the ischemic site is greatly improved, the patient’s angina attack can be significantly reduced or disappeared, and some patients can return to their normal life, work and social status before the onset of the disease, many patients mistakenly think that they can rest easy and relax. Many patients think they can rest easy and relax their treatment, leading to serious adverse consequences. So, is there a recurrence after PCI and is it necessary to continue the medication? As a matter of fact, stenting is like repairing a road, the road is repaired, but the key to keep it open for a long time lies in the usual maintenance, because the total vascular area of human body is about 1000 square meters, a stent can only change the most serious life-threatening part, only 0.002 square meters, other parts of the body may still have problems, causing myocardial infarction or stroke; in addition, although the stent implantation place is temporarily smooth blood flow, but it can be thrombosed again, In addition, although the stent is temporarily open to blood, there is a risk of reoccurrence of thrombosis. Patients who have had a previous stroke have a 3-5 times higher risk of having another stroke or myocardial infarction than those who have not had a previous heart attack. Therefore, coronary intervention does not mean that coronary artery disease is cured, but long-term treatment after PCI is required to maintain long-term success. So, how to maintain the coronary artery “road” after PCI? First of all, insist on long-term medication 1, anti-platelet drugs: when the stent is first implanted, because the vascular endothelium has not yet grown well, the stent may form thrombus, anti-platelet drugs can prevent thrombus formation, reduce myocardial ischemia and stroke, except in special cases, all patients after stenting should take anti-platelet drugs. Currently, the main antiplatelet drugs include aspirin and clopidogrel, the former must be taken for life, the latter for at least 1 year, and longer for more dangerous sites or more stents. Generally, aspirin 0.3g/day for the first 1 month, and 0.1g/day after 1 month, pay attention to the color of stool and the presence of gastrointestinal bleeding; clopidogrel 150mg/day for the first 2 weeks, and 75mg/day after 2 weeks. Even if you feel good about yourself, you should not stop the medication. 2.Lower blood pressure: Control of hypertension can prevent the recurrence of myocardial infarction. Patients with hypertension should use the medication under the guidance of physicians to control blood pressure below 140/90mmHg. 3.Lowering blood lipid: hyperlipidemia, especially the increase of LDL blood is the main risk factor of coronary heart disease, we can’t think that hyperlipidemia can be ignored because there is no symptom. Reduce total cholesterol level to below 180mg/dl, LDL to below 100mg/dl and triglyceride to below 170/dl. Even if the blood lipids are normal, it is necessary to continue the treatment with statins. 4, active treatment of diabetes, for patients with coronary heart disease combined with diabetes, fasting blood sugar or postprandial blood sugar should be controlled at normal level. Fasting blood sugar should be at least below 7mmol/L, preferably below 6mmol/L, and 2 hours after meal should be at least below 10mmol/L, preferably below 8mmol/L. Second, to maintain a healthy lifestyle 1, appropriate exercise: After coronary intervention, patients should not be bedridden or sedentary all day, but should exercise appropriately under the guidance of doctors. Regular exercise helps to keep the coronary lumen open and promote the growth of myocardial collateral vessels in the ischemic area. Generally speaking, the level of postoperative activity should be determined according to the preoperative physical condition, activity habits, postoperative cardiac condition r and the different environments they are in, and aerobic exercise is advocated, such as walking, doing health exercises, playing tai chi, etc. 2, change the diet: good dietary structure and eating habits can help control blood lipids and blood pressure, thus preventing the occurrence of coronary restenosis. After the coronary intervention, the diet should be mainly clean, protein should be mainly fish, do not overeat or eat too much. Eat more new vegetables, fruits, lean meat, chicken, duck, rabbit, ~ meat, soy products and dairy products. It is not advisable to eat often or eat a lot of animal offal, squid, crab yolk, egg S, and fried, fried, barbecued and other foods. 3, to maintain emotional stability to avoid great joy or depression, excessive psychological stress, will accelerate the progress of atherosclerotic lesions, increasing the occurrence of cardiac emergencies. 4, weight control: weight control is not only conducive to lowering blood lipids, control hypertension, but also reduce the burden on the heart, thereby preventing the recurrence of coronary heart disease. 5, quit smoking. Third, regular monitoring and review Post-operative follow-up time: at least the first month, 3 months, 6 months, 9 months, 12 months after surgery to go to your surgeon to review, monitoring and review of the content include: blood routine: the beginning of about 1 month to review once, and later 2-3 months according to the situation to review once. The main observation is the number of platelets, because both aspirin and clopidogrel have an effect on platelets; another observation is the number of white blood cells, although the side effect of myelosuppression occurring with clopidogrel is rare; the decrease in hemoglobin should be noted for reasons such as blood loss. Liver function and blood lipids: Statin lipid regulating drugs have certain liver damage effects, although the incidence is small, generally not occurring in the first 3 months, the chance of occurring in the future is also very small, so the first 2-3 months monthly review once, after 2-3 review once can be. Blood lipids are mainly observed whether statins are taken in place, generally low-density lipoprotein at 1.8-2.0mmol/L is appropriate; triglycerides should be <1.7mmol/L, high-density lipoprotein >0.9mmol/L. Electrocardiogram, cardiac ultrasound: if there is chest pain, chest tightness, panic and other symptoms must be rechecked electrocardiogram, if not, about half a year is enough; if there is old Myocardial infarction, heart failure about half a year to review the heart ultrasound, no about a year to review a time, except when the condition changes. Coronary angiography: generally there is no need for routine review, but if there are symptoms of chest tightness and chest pain, it is still recommended to review. The coronary CTA (i.e., multi-row CT) of intra-stent lesions is not clear. For patients after stenting, direct coronary angiography is recommended, and coronary CTA is slightly less effective. If there is any discomfort, go to the hospital immediately.