How long the open heart bypass can live is related to the patient’s physical condition, the patient’s age, the severity of the patient’s disease and other factors, the specific survival time can not be determined. If the patient’s physical condition is better, not too old at the time of surgery, the body’s recovery ability is stronger, without other underlying diseases, the premise of regular postoperative review, strictly comply with the doctor’s instructions to use medication, quit smoking and drinking, appropriate exercise, ensure that the diet and nutrition, the survival time will be longer. If the patients themselves are combined with more underlying diseases, they are older, they do not take medication regularly after surgery, and they still maintain poor lifestyle habits, postoperative re-obstruction of the graft vessels, cardiac arrhythmia, and thrombotic events may be unavoidable, which will seriously affect the survival time of the patients. After having open thoracic bypass surgery, it is important to strictly follow the doctor’s instructions for review and medication, and if any discomfort occurs, it is recommended to go to the hospital in time and deal with it under the doctor’s guidance.