The duration of survival after heart bypass varies depending on the specific condition as well as post-operative care. Some may achieve long-term survival, even beyond 30 years. The prognosis for cardiac bypass is defined as coronary artery bypass grafting, and the prognosis for this procedure is largely related to the proper postoperative medication and care. Anticoagulant therapy, i.e., aspirin and clopidogrel as prescribed, is usually required after surgery. If there are no complications after the operation, and the medication is correctly administered, and strenuous exercise is avoided, the prognosis is generally good, and the patient can survive for 10 years, 20 years, or even longer. However, some of the postoperative complications such as arrhythmia, myocardial infarction, pericardial effusion, etc. may occur, which may be life-threatening or even lead to sudden death if not handled in a timely manner. At the same time, if you do not adhere to the medication and correct bad habits after surgery, it is also easy to lead to blood vessel blockage, which increases the risk of cardiovascular disease again. After the operation, we should have regular checkups, take medication on time, and consult a doctor if there is any discomfort.