1.Before discharge from the hospital after surgery, you should consult with the doctor about your child’s post-operative precautions, such as: when to review, discharge with medication, diet, activity level and vaccination, etc. 2.After discharge from the hospital, you should carefully observe the child’s spirit, appetite, urine and stool, and whether there is any growth in height and weight. 3.The doctor will pay attention to the lung auscultation, heart rhythm, murmur auscultation, liver size, and whether there is swelling during the review. According to the situation, electrocardiogram, chest X-ray and ultrasound will be done, and electrolytes will be reviewed if diuretics are taken for a long time. 4, review if there is a suspicion of atrial defect post-operative releakage, arterial catheter post-operative recanalization, more serious valve closure insufficiency, pericardial effusion, long-term high fever that does not go away when endocarditis is suspected, ultrasound can be done to clarify the diagnosis, if necessary, need to operate again for treatment. 5, about the discharge with drugs: ① general non-cyanotic precocious heart disease without combined pulmonary hypertension children discharged with drugs for 1 month, 1 month review no special circumstances can stop drugs. In the case of non-cyanotic precocious heart disease combined with pulmonary hypertension, it is recommended to take the medication for 3 months, and discharge with medication for 1 month. 1 month review, the medication can be adjusted according to the situation and continue to use the medication. 3 months, the medication can be reduced or continued according to the situation. (3) Children with cyanotic preconditioning are recommended to take medication for 3 months after surgery and be discharged from the hospital with medication for 1 month. 1 month review, the dosage can be adjusted appropriately according to the situation or continue medication. 3 months review, the dosage can be reduced or stopped according to the situation. ④Small dose aspirin after two-way Glenn, total cavity, body-pulmonary bypass, etc. should be taken for at least six months, preferably for life, and should not be stopped without authorization. Patients after total cavity surgery, such as those who have stopped using cardiac diuretics, such as a cold, you need to take additional cardiac diuretics to avoid the sudden rise in pulmonary resistance accidents.