The survival time of patients after cardiac bypass varies from person to person and is related to the patient’s condition, age, cardiac and renal functional status, and a variety of other factors; there is no exact time. Some patients may die within a few years, but some patients may achieve long-term survival. Usually, if the patient can standardize the medication treatment after surgery, adhere to the secondary prevention medication for coronary heart disease, and can maintain a healthy and good living condition, such as low salt diet, strengthen exercise, control weight, quit smoking and alcohol, regular follow-up, and regular review, the patency rate of coronary artery bridge vessels is higher in this case, and small vessel occlusion will not occur in the short term, and will not induce ischemic events, cardiac function The survival time of such patients may not be long. The survival time of such patients may not be affected by heart bypass surgery, and they may survive for a long time. If a patient after heart bypass surgery does not pay attention to the disease state, thinks that the blood vessels do not have problems after bypass surgery, does not take medication regularly or does not improve the poor lifestyle. Then the bridge vessel is likely to be occluded within a few years, and it may induce myocardial infarction, heart failure, or even malignant arrhythmia again, and the patient may die within a few years. In addition, in the case of elderly patients with combined anemia, elevated creatinine, or combined tumors and many other factors, the survival period is often shorter. Therefore, patients with heart bypass should be closely monitored, as well as actively and standardized treatment, which can effectively improve the prognosis and prolong the survival time of the patients.