The arterial switch surgery is the most common surgery these days to correct a transposition of the great arteries (TGA). You can view a TGA before surgery here: https://skfb.ly/6xrnt
What happens during the surgery?
- The arteries are cut just above the heart valves
- The coronary arteries are cut from the aorta and attached to the artery that goes to the lungs. The holes in the aorta are closed.
- The aorta is moved to the base of the pulmonary trunk. This will form the new aorta.
- The pulmonary trunk is moved and attached to the base of the aorta. These two together will form the new pulmonary artery.
All of this will result in a bloodflow that is similar to a normal heart.