1.How old can a pediatric atrial septal defect be operated? Pediatric ventricular septal defect can be operated on at 6 months of age or older. 2.Can ventricular septal defect heal on its own? Ventricular septal defect has the possibility of self-healing, and if it is under 2~3mm, it can be operated without surgery. 3.How much is the cost of surgery for pediatric ventricular septal defect? The cost is about 30,000~40,000. 4.What is the success rate of ventricular septal defect? The success rate of surgery is about 90%. 5.What are the advantages of surgical treatment of ventricular septum? Surgical treatment is more thorough than interventional treatment, the incision is about 6cm long, and the prognosis is better.