What does Tetralogy of Fallot repair involve?

This is an open-heart surgery performed under general anesthesia to correct four congenital heart defects: ventricular septal defect closure, right ventricular outflow tract widening, and pulmonary valve repair. The surgeon uses cardiopulmonary bypass to stop the heart temporarily, allowing precise reconstruction. The ideal age for this procedure in China is 6–12 months, as early correction prevents long-term complications like cyanosis and growth delays.