The Arterial Switch Operation (ASO) is a critical surgical procedure performed to correct a congenital heart defect known as Transposition of the Great Arteries (TGA). In TGA, the positions of the main pulmonary artery and the aorta are reversed, causing oxygen-poor blood to circulate through the body and oxygen-rich blood to circulate between the heart and lungs, leading to severe oxygen deprivation in the body's tissues.
