The cost of atrial septal defect blocking is generally around 20,000 RMB, but the exact price fluctuation is related to the level of the local hospital and the level of the hospital, as well as the type of medical insurance the patient has, in addition to the different severity of the condition. Before the atrioventricular septal defect blocking surgery, blood, urine, stool, blood biochemistry, coagulation series, preoperative immunity, liver and kidney function and other related laboratory tests and electrocardiogram, chest X-ray, cardiac ultrasound and other related examinations are needed to assess the general condition of the patient, and antibiotic drugs are also given to prevent the occurrence of intraoperative or postoperative infections. After atrial septal defect closure, symptomatic treatment such as cardiac monitoring, circulation improvement and anti-infection will be given, which will also cost several thousand dollars more.