The incidence of congenital heart disease in China is 0.7% to 0.8%, and about 150,000 new children with congenital heart disease are born every year, which is a serious health hazard to people. However, most congenital heart diseases can be cured by corrective surgery and return to normal work and life in society. Currently, 20,000 patients are treated by interventional methods every year, and due to the rapid development of interventional techniques and the continuous updating of interventional devices, more and more physicians and patients are accepting this method with less trauma, faster recovery and clear treatment results. In view of the fact that there are many hospitals with different equipment and medical levels in China, and the uneven technical means of physicians seriously affect the treatment results and long-term efficacy, in order to better summarize the experience, standardize reasonable treatment behavior, improve the safety of congenital heart disease intervention, reduce the incidence of complications, and make the interventional treatment of congenital heart disease more healthy development, the interventional treatment of congenital heart disease in our hospital According to Chinese congenital heart disease expert consensus, combined with the characteristics of congenital heart disease interventional treatment and clinical reality in Qinghai Province, after the discussion of cardiac surgery expert group, the common congenital heart disease interventional treatment specification was drafted for clinicians engaged in congenital heart disease interventional treatment to learn from. Wang Liming, Department of Cardiac Surgery, Qinghai Cardiovascular Hospital Interventional treatment of patent ductus arteriosus (PDA) is one of the common congenital heart diseases, and its incidence accounts for about 10% to 21% of congenital heart diseases, and one case can occur in every 2500-5000 surviving newborns. The incidence of preterm infants has increased significantly, and the incidence can be as high as 80% for those who weigh less than 1 kg at birth. Depending on the size of the PDA diameter, there are different clinical manifestations, and most experts believe that PDA must be treated once diagnosed, and almost most of them can be cured by interventional blocking methods. I. Indications and contraindications for interventional treatment (a) Indications Weight ≥ 8 kg, with clinical symptoms and cardiac overload performance, not combined with other cardiac malformations requiring surgery. (B) relative indications 1. weight 4-8 kg, with clinical symptoms and cardiac overload, not combined with other cardiac malformations requiring surgery; 2. “silent” PDA; 3. catheter diameter ≥ 14 mm; 4. combined with infective endocarditis, but has been controlled for 3 months; 5. combined with mild to moderate mitral valve 5. Combination of mild to moderate mitral insufficiency, mild to moderate aortic stenosis and insufficiency. (C) Contraindications 1. infective endocarditis, heart valves and catheters with redundancy; 2. severe pulmonary hypertension with right-to-left shunt, total pulmonary resistance >14woods; 3. intracardiac malformations requiring surgical correction; 4. patients dependent on PDA for survival; 5. patients with other diseases not suitable for surgery and intervention.