After myocardial infarction bypass treatment of heart failure symptoms can be improved, mainly related to the improvement of heart function, after the operation need to closely monitor the heart beat situation and ejection fraction and other indicators. Myocardial infarction is mainly related to coronary atherosclerosis, the aggravation of the disease caused by the narrowing of blood vessels, occlusion, resulting in insufficient blood supply to the myocardium, which further leads to myocardial cell necrosis, which will affect the heart beat and lead to heart failure. After bypass surgery, with the re-establishment of blood circulation, heart function improves significantly, which can effectively relieve the symptoms of heart failure. During the recovery period, it is important to closely monitor the heart beat status, ejection fraction and myocardial enzyme profiles, and seek medical observation and standardized treatment under the guidance of the clinician to avoid delaying the condition.