In other cases, a tunnel is constructed across the interior of the pulmonary artery that carries blood from the aorta to the left coronary artery. Oxygen-rich blood from the aorta passes through this tunnel and enters the left coronary artery, which carries it to the heart muscle.
Recovery from the surgical repair of this defect may be difficult and is largely dependent on amount of heart damage that has occurred, as well as other complications. However, gradual improvement can be expected in many cases. The length of the postoperative hospital stay is generally 10 days to three weeks.