What is interventional therapy for prediabetes? It is usually performed by puncturing the femoral artery or vein at the root of the thigh, inserting a special catheter, delivering a special blocker through this route to reach the lesion to be treated, and releasing and fixing the blocker in the lesion for the purpose of cure. The advent of interventional occlusion therapy for precardiac disease has brought about a fundamental change in the concept of treatment for precardiac disease and has now become the treatment of choice for most precardiac diseases. Can interventional therapy be performed for all precardiac diseases? At present, the most common precardiac diseases that can be treated with intervention are ventricular septal defect, atrial septal defect, patent foramen ovale, patent ductus arteriosus, and pulmonary stenosis. Some other rare precordial diseases such as ruptured sinus tumor and coronary artery fistula can also be treated with intervention. Will the blocker fall out? After immediate implantation of the blocker, experienced surgeons are able to check the effectiveness and firmness of the blocker with X-ray and ultrasound monitoring, and finally release the blocker when they are satisfied. Postoperative follow-up is rare. The dislodgement of the blocker is mostly related to the small choice of blocker, poor placement of the blocker, or the soft and poorly supported tissue around the defect. Which is better, interventional treatment or traditional open-heart surgery? Interventional occlusion is a procedure in which a doctor punctures the patient’s blood vessel (usually the root of the thigh) and sends a suitable sized blocker to the lesion to block the defective or unclosed arterial duct through a specially designed sheath of 2~4 mm in diameter, under the guidance of X-ray and ultrasound, in order to achieve the purpose of treatment. It has the advantages of small trauma, short operation time (about 1 hour), quick recovery (you can get out of bed the day after the operation), no special anesthesia and extracorporeal circulation, and short hospitalization period (about 1 week). General anesthesia is only needed if the patient is too young to cooperate with the operation. Traditional open-heart repair is a direct opening of the chest to repair the defective area. The operation is performed under direct visualization of the heart with extracorporeal circulation, and the repair of the defect is accurate, which is the classical traditional method for treating precordial disease. It is suitable for the treatment of basically all precordial diseases.