After coronary artery bypass grafting, the blood supply to the heart is well improved. The next most important treatment is to participate in cardiac rehabilitation program, regular review, control the risk factors of coronary artery disease, learn good lifestyle and diet, and master the correct exercise methods to maintain the coronary artery smoothly, improve and enhance the heart function, and reduce the recurrence of coronary restenosis. Review after heart bypass surgery The review time after heart bypass surgery can be decided specifically according to the operation, generally speaking, one review each in 1 month, 3 months, 6 months and one year after the operation. Regular review of blood lipids, liver function, and annual review of cardiac ultrasound. Risk factors for coronary artery disease, such as smoking, hyperlipidemia, diabetes, and hypertension, need to be controlled after heart bypass surgery. Diet after coronary artery bypass surgery 1, low sodium diet: low sodium diet should eat less salt or smoked food; canned food are to eat less. 2, low-fat diet: the diet should limit the intake of animal fat, cooking, more vegetable oil, cholesterol is limited to less than 300 mg per day. Fat-lowering foods are preferred to soy products. Black fungus has the effect of anti-platelet coagulation, lowering blood lipids and stopping blood cholesterol deposition. Capsicum, oats and barley are good for lowering blood lipids and can lower blood cholesterol and reverse fatty liver. 3, moderate intake of protein: unless combined with chronic renal insufficiency, generally do not need to strictly limit the intake of protein. Eat fish protein 23 times a week, can improve vascular elasticity and permeability, increase urine, sodium discharge, thereby reducing blood pressure. 4, eat more green vegetables and fresh fruit: conducive to myocardial metabolism, improve myocardial function and blood circulation, promote the excretion of cholesterol, to prevent the development of hypertensive disease. 5, avoid eating foods that excite the nervous system: such as wine, strong tea, coffee, etc. Smoking is extremely harmful to the heart because: (1) cigarettes contain tar, nicotine and carbon monoxide, these three substances are extremely harmful to the human body. (2) When the concentration of carbon monoxide hemoglobin in the blood is too high, the blood oxygen concentration can be reduced, the tissue oxygen supply is insufficient, the inner wall of the artery is edematous, endothelial damage, lipid infiltration into the vessel wall, accelerating the formation of atherosclerosis. (3) patients with coronary heart disease, smoking can accelerate its progress and cause heart attacks. Heavy smoking can induce ventricular fibrillation and other serious arrhythmias, and become one of the causes of sudden death.