Some can survive for a long time after cardiac bypass surgery, but some may die within a few years, which needs to be judged on a case-by-case basis. After cardiac bypass surgery, if you follow the doctor’s instructions, adhere to the secondary prevention of coronary heart disease medication, such as aspirin, clopidogrel, bisoprolol, etc., and maintain a healthy lifestyle, the risk of cardiovascular events after the operation is low, and the rate of patency of the bridge blood vessels is high, you can usually get long-term survival. If the age is on the young side, the survival can be 20, 30 years or even longer. However, if the postoperative medication is not taken regularly, and the poor lifestyle such as staying up late for a long time and consuming too much high-salt and high-fat food does not improve, the bridge vascularization rate will be easily affected, and myocardial infarction, arrhythmia, and even sudden death may be induced again. Therefore, after heart bypass surgery, in order to improve the quality of life and prolong the survival period, regular follow-ups and postoperative care should be emphasized. If any discomfort occurs after the operation, it is recommended to go to the hospital for examination immediately.