Bypass surgery, or coronary artery bypass grafting, improves heart failure after surgery, but recovery takes longer. It may be difficult to recover if postoperative precautions are not taken. Coronary artery bypass graft surgery can improve the blood supply to the heart muscle, thus treating ischemic heart failure and improving quality of life. However, the postoperative prognosis is also closely related to daily care and medication. In order to promote the improvement and recovery of heart failure, the postoperative period should also follow the doctor’s instructions to take leuprolide drugs such as dagliflozin, cagliflozin, engelezin, etc., as well as sacubitril valsartan tablets, isosorbide mononitrate, aspirin, furosemide, hydrochlorothiazide and other medications. Carry out a low-salt, low-fat diet, quit smoking and drinking, and avoid strenuous exercise. After heart bypass surgery must be active care, regular review of cardiac ultrasound, electrocardiogram, etc., if there is any abnormality need to consult a doctor in time for treatment.