Emphasis on cardiac rehabilitation and secondary prevention can rationalize medical costs and is one of the most worthwhile areas of clinical medicine currently under study. Cardiac rehabilitation has undergone a process from denial and questioning to universal acceptance, and it is known that the dramatic decline in coronary heart disease mortality in developed countries is due to coronary rehabilitation and secondary prevention, which has become an important link in determining the quality of medical care and the quality of patient survival. Cardiac rehabilitation is a multidisciplinary, multidisciplinary, and multiform integrated medical care model that covers prevention before the onset of disease and rehabilitation after the onset of disease, and is an important part of the overall management of cardiovascular disease. In a broad sense, secondary prevention is part of coronary heart disease rehabilitation. Are there any contraindications to rehabilitation? Cardiac rehabilitation is available to all patients with cardiovascular disease without contraindications to cardiac rehabilitation. Contraindications to cardiac rehabilitation include: high or low blood pressure, severe aortic stenosis, uncontrolled arrhythmias, uncontrolled congestive arrhythmias, uncontrolled diabetes or metabolic disorders, high atrioventricular block without a pacemaker, current myocarditis or pericarditis, recent pulmonary or other site embolism, recent cerebrovascular accident or TIA, recent major surgical procedure, physical or mental disability that prevents rehabilitation, etc. Common means and stages of rehabilitation include? In order to achieve secondary prevention of coronary heart disease, patients often benefit from cardiac rehabilitation through health education, exercise, and harmful lifestyle changes to reduce susceptibility factors, improve cardiopulmonary function, improve exercise tolerance, and improve peripheral blood flow. This is understood as follows: Cardiac rehabilitation is divided into three main phases: in-hospital rehabilitation, out-of-hospital early rehabilitation or outpatient rehabilitation, and out-of-hospital long-term rehabilitation. How to prevent and control the risk factors of coronary heart disease? The ten risk factors for coronary heart disease are: high blood lipids, smoking, diabetes, hypertension, obesity (abdominal), lack of exercise, stress, family history, gender, and age. Most of these are variable risk factors, meaning that cardiovascular disease is preventable and controllable. So, what can be done to prevent and control it? We need to start with the following: blood pressure below 130/85 mmHg; blood glucose below 7 mmol/L before meals and 11 mmol/L after meals; lipid index – low-density lipoprotein (LDL) below 1.8 mmol/L or reduced by 50%, plus attention to obesity. For people at high risk of coronary heart disease, active lipid lowering is very necessary, and lowering lipids can stabilize plaque, reverse plaque and prevent plaque from occurring. Experts recommend that patients with coronary artery disease must adhere to long-term statin therapy and take the drug for life to benefit from it throughout their lives, while for patients with stable angina, taking a statin and a stent are equivalent. How should I change my lifestyle after PCI surgery? Postoperative rehabilitation should pay attention to quit smoking, limit alcohol consumption, reduce salt intake, reduce saturated fatty acid intake, increase calcium intake, improve dietary structure, and maintain a good state of mind and psychological balance, etc. At the same time, we should standardize medication, including the use of anticoagulant and antiplatelet drugs, lipid-lowering drugs, vasodilators, anti-hypertensive drugs, anti-arrhythmic drugs, anti-heart failure drugs, and hypoglycemic drugs. In addition, patients should value the benefits of exercise and pay attention to the intensity and frequency of exercise and exercise appropriately. Clinicians need to follow up with patients after cardiac rehabilitation to systematically assess their cardiac rehabilitation to determine the rate of treatment and control of coronary artery disease, monitor medication use, and assist in developing rehabilitation programs, determining the risks of rehabilitation, determining efficacy, and improving treatment levels. Assessment forms usually include graded cardiac exercise testing, simple exercise capacity assessment, metabolic equivalent assessment, quality of life assessment and international functional, disability and health assessment. Answer questions 1.What should I do if I take medication for one year after stent installation? Depends on the situation, such as there are no symptoms, aspirin to be taken for life, clopidogrel to take a year to a year and a half can be considered to stop, statin to be taken for a long time, beta blockers to be taken for life, if there is hypertension ACEI class should also be taken for a long time. 2. Combined with hypertension, 85% stenosis of the anterior descending branch, no stent, can the stenosis improve with regular medication? Generally speaking, if it is stable angina, 85% can be considered to be treated with medication, but 90% or more should be put into stent. If no stent is placed, regular medication may not improve the stenosis, but regular medication and exercise can form side branches, and the symptoms can be improved, but close follow-up is needed, and if it is more severe, it is still necessary to consider placing a stent.