What is coronary heart disease? Coronary Heart Disease (CHD) is a disease in which the coronary arteries supplying blood to the heart become narrowed and occluded due to atheromatous plaques, leading to a decrease or even partial interruption of the blood supply to the heart, resulting in myocardial ischemia, hypoxia, and even necrosis. What are the clinical manifestations? Depending on the severity of ischemia, angina pectoris (often manifested as pain in the anterior region of the heart, which can be relieved in 5-10 minutes after stopping activities or taking nitroglycerin orally), myocardial infarction (acute infarction, the patient often feels nausea, vomiting, profuse sweating, cardiac arrhythmia, drop in blood pressure, heart failure, and even cause sudden death, which is life-threatening), and in severe cases, ventricular wall aneurysm, or even necrosis, can occur. In severe cases, complications such as ventricular wall tumor, perforation of the interventricular septum, papillary muscle dysfunction, cardiac rupture, and even sudden death may occur. How to prevent and control coronary heart disease? 1, avoid triggers: such as emotional excitement, excessive exertion, cold, full meals and so on. 2, completely quit smoking. 3, lowering blood fat, weight loss, eat more light and easy to digest food, keep bowel movement. 4.Control blood pressure and weight, exercise properly, and treat hypertension, diabetes and other diseases. 5, according to the doctor’s instructions to take the correct medication, regular review. 6. Learn to self-monitor changes in your condition. 7.Adopt a healthy lifestyle. What is coronary artery bypass surgery? Coronary artery bypass surgery is to take a section of the internal thoracic artery (also known as the internal mammary artery) located in the patient’s chest, or the autologous saphenous vein or other blood vessels in the legs, and make a bypass between the aorta and the distal end of the coronary artery that is narrowed or blocked, so that blood from the aorta is supplied to the distal end of the coronary artery that is narrowed or blocked via the transplanted blood vessels, to restore the corresponding myocardial blood flow, and to improve myocardial ischemia, hypoxia and hypoxia, and to improve myocardial blood flow. Improve myocardial ischemia and hypoxia, and relieve symptoms such as angina pectoris and myocardial infarction. This surgical procedure is called coronary artery bypass grafting. How to arrange diet and living after bypass surgery? 1, strictly follow the doctor’s instructions to take medication, on time and according to the dosage. 2. You still need to choose a light diet rich in vitamins, low fat, low cholesterol and low calorie. If you have diabetes, you still need to limit the intake of sugar and actively treat diabetes. 3, resolutely quit smoking. 4.After bypass surgery, there is still the possibility of myocardial ischemia, so after surgery you should also pay attention to whether there is angina attack, the nature of the pain is the same as before the operation. You should go to the hospital for examination in time.