There are many types of congenital heart disease. Simple congenital heart disease, such as atrial septal defect, ventricular septal defect, patent ductus arteriosus, etc.. These do not differ from normal life expectancy if treated aggressively; in the case of complex congenital heart disease, such as transposition of the great arteries, tetralogy of Fallot, and severe diseases such as single ventricle, the child usually dies at an age of more than one year. Therefore, once congenital heart disease is present, it is important to determine which staging is based on ECG and cardiac ultrasound, and the next step of treatment is based on the staging. Generally, the purpose of cure is to correct the previous malformation through surgery, and the child achieves the same life expectancy as a normal person through the surgery, but after the surgery, he needs to take cardiotonic and diuretic drugs for a long time to recover his heart.