Every year, about 150,000 children with congenital heart disease are born in China, and caring for them is often a struggle for parents. With the development of medical technology, many children with congenital heart disease can now be restored to basic health after surgery and live and study as normal as other children. Surgery for precardiac disease is different from surgery for appendicitis. By removing the appendix, the patient is completely cured and no more appendicitis-related diseases will occur. In contrast, surgery for congenital heart disease is mainly for repair and correction, and even for more complicated cases, only palliative surgery can be performed to prolong the life of the child and improve the quality of life. On the other hand, surgery for congenital heart disease in children is different from that in adults. A child’s heart changes as it grows and develops, and the results of surgery may change as well. Therefore, even if the surgery is completed successfully, parents should not take it lightly, as post-operative care and rehabilitation are equally important. Post-operative review of congenital heart disease is an important way for doctors to determine the effectiveness of the surgery. In order to better cooperate with the doctor, the following 5 review items need to be paid extra attention to by the parents of the children: 1. 2, comply with medical advice, regular re-examination: usually, regular re-examination is required 1 month, 3 months, 6 months and 1 year after discharge, and if the child recovers well, it is also necessary to re-examine every 1-2 years until adulthood. The specific time and arrangement of the review should be followed by the parents of the child; 3. Fixed hospital review and comparison of previous data: It is recommended that the child be reviewed in the hospital where the surgery was performed and the medical institution where the review was fixed as much as possible. For the doctor, it is very meaningful to compare the data before and after the surgery and the information of each examination. Therefore, at each review, parents need to bring all the corresponding information of the treatment, including medical records, hospitalization data, examination results and imaging data, etc.; 4. In order to obtain more accurate test results, often ECG, echocardiogram, CT examinations and other examinations need to be performed while the child is asleep, so doctors often recommend sedative-hypnotics (such as chloral hydrate or chloral hydrate) for children. Many parents are concerned that these drugs will harm their children’s health and intelligence, and therefore reject the tests. In fact, when using these drugs, the hospital will be strict in the dosage, rigorous scientific selection of safe and low side effects of drugs, and will not cause damage to the child’s body. The items that need to be checked for routine review include: 1. ECG: Although ECG is the traditional method of checking heart diseases, it can provide valuable diagnostic clues for doctors to understand the presence of arrhythmias, myocardial ischemia, and the size of the heart chambers. If there are abnormalities, drugs or interventions are needed if necessary; 2, echocardiography: echocardiography is a mandatory item for postoperative review of precordial disease and is a reliable test for non-invasive and accurate understanding of the effect of surgery for precordial disease; 3, chest X-ray: used to understand the heart and lung conditions, the presence of pleural effusion, pneumothorax, pericardial effusion and other abnormalities; 4, CT examination: CT examination is valuable for including the heart and lung, airway conditions. CT examination (including enhanced CT, three-dimensional reconstruction) is needed for some children with complex precordial disease and combined tracheal/bronchial stenosis; 5.Laboratory examination: for children taking medication, digoxin blood concentration, blood electrolytes, liver and kidney function, blood routine, etc. may be checked.