Interventional and minimally invasive surgery for cardiac diseases has the advantages of small surgical incision, light trauma, less pain, fast postoperative recovery with high success rate, low complications and mortality, etc. Therefore, it is attracting more and more attention. Minimally invasive surgical treatment of heart disease under full thoracoscopy: TV thoracoscopic cardiac surgery is considered to be another major technological revolution in the field of cardiac surgery since the introduction of extracorporeal circulation, and is a representative procedure of modern minimally invasive cardiac surgery. The thoracoscopic technology and minimally invasive cardiac surgery technology of the Cardiovascular Surgery Department of Xijing Hospital are at the leading level internationally, and we have rich clinical experience and excellent surgical techniques for the surgical treatment of complex precardial diseases and valve diseases and minimally invasive cardiac surgery. At present, the types of minimally invasive cardiac surgery we can perform include: atrial septal defect, ventricular septal defect, aortic sinus aneurysm rupture, partial pulmonary vein ectopic drainage, partial atrioventricular canal malformation, Ebstein malformation, triple atrial heart, mitral valve replacement, cardiac mucinous tumor, etc. 1.Thoracoscopic treatment of congenital heart disease by extracorporeal circulation thoracoscopic treatment of congenital heart disease by combining the technique of small incision in the chest with thoracoscopic technology, by improving the surgical method and surgical instruments, three 1 to 2 cm holes are made in the right chest wall for thoracoscopic treatment of congenital heart disease by extracorporeal circulation thoracoscopic treatment of atrial septal defect and ventricular septal defect by thoracoscopic perforation of the chest wall, this surgical method has no bone damage and does not need to cut off the muscle. In June 2000, we were the first in China to carry out thoracoscopic treatment of congenital heart disease atrial septal defect and in August 2000, we carried out thoracoscopic treatment of congenital heart disease ventricular septal defect, and all intracardiac operations were done under the mirror. 2.Treatment of rheumatic heart disease with the aid of extracorporeal circulation thoracoscopy Conventional valve replacement surgery incision is the anterior median incision of the chest, the length of the incision is more than 20 cm, which is traumatic, affects the beauty and leaves 4-5 wires in the body. On the basis of thoracoscopic treatment of congenital heart disease by perforating the chest wall with extracorporeal circulation, we adopted the technique of open-chest extracorporeal circulation and made a small incision of 4 to 5 cm in the right chest wall, and were the first in China to perform mitral valve replacement surgery with the assistance of thoracoscopy in October 2001. 3.Treatment of complex congenital heart disease with the assistance of extracorporeal circulation thoracoscopy Complex congenital heart malformation is complicated and the risk of surgery is high. After thorough preparation, we were the first in the world to carry out thoracoscopy-assisted treatment of complex congenital heart disease – Ebstein’s malformation in November 2001, using peripheral extracorporeal circulation technique to complete atrialized right ventricular folding and tricuspid valvuloplasty in the beating state of the heart through a small 4cm-long opening in the right chest wall of the patient; in January 2002, we carried out the correction of partial atrioventricular canal malformation combined with triatrial heart. In July 2002, we were the first in the world to carry out mitral valvuloplasty and left atrial mucinous tumor removal. Transthoracic occlusion for congenital heart disease: Although interventional occlusion has played an important role in the treatment of atrial septal defect in congenital heart disease in recent years, it is not possible to perform interventional occlusion for some atrial septal defects, so in order to expand the indications for surgery, our hospital has taken the lead in exploring thoracoscopic and transthoracic small incision to place the new integrated nickel-titanium memory alloy atrial defect closure device successfully, which has opened up a new way for the interventional closure of atrial defects. The new procedure is performed in the right thoracic region. The new procedure involves making a small incision of about 2 cm in length in the right anterior chest next to the sternum, placing a pusher, and releasing the atrial defect closure device under the guidance of cardiac ultrasound, with an average intracardiac operation time of about 10 minutes and a total operation time of less than 1 hour. The procedure is performed on the same day and the patient is off the floor on the same day, with an average hospital stay of 3-4 days. Advantages of chest wall perforation non-external circulation atrial septal defect closure: 1.No need for extracorporeal circulation, avoiding complications of extracorporeal circulation. 2. Wide surgical indications. 3. The surgical incision meets the cosmetic requirements, and the patient suffers little pain and recovers quickly. Interventional treatment of precardiac disease: Under the guidance of X-ray fluoroscopy and cardiac ultrasound, after local anesthesia, a cardiac catheter is inserted through the vascular puncture skin at the root of the thigh to push the blocking umbrella to the lesion and open the umbrella surface to close the small hole of the defect or the unclosed arterial duct to achieve the purpose of radical treatment of precardiac disease. patients above 3 years old with atrial septal defect, ventricular septal defect and unclosed arterial duct can consider interventional surgery or blocking treatment.