1.For children with non-cyanotic precocious heart disease not combined with pulmonary hypertension, they should adhere to the medication for 1 month after discharge to help the recovery of cardiac function, and the medication can be discontinued after 1 month of review without any abnormalities. 2.For children with non-cyanotic precocious heart disease combined with pulmonary hypertension, it is recommended to take the medication for 3 months and take it for 1 month when discharged from the hospital. After 1 month of use, we will review the medication at the hospital and adjust the medication according to the recovery situation. 3 months later, we can stop or continue the medication according to the situation when we review. 3, cyanotic preconditioning children, postoperative recovery is slower than non-cyanotic, at least 3 months of medication, discharged from the hospital with 1 month of medication. 1 month of review can be adjusted according to the situation to continue to use the medication, 3 months of review can be reduced according to the situation to stop or continue to use the medication. 4. Children who have undergone bidirectional Glenn, total vena cava pulmonary artery connection, and body-pulmonary bypass need small doses of aspirin after surgery, and cannot stop the medication without permission, and need to consult professional doctors when they can stop the medication.