Transposition of Great Arteries_A80122

**Transposition of Great Arteries** A 2.0 x 1.8 cm patch has been placed between the right and left atrium to divert the flow of blood from the pulmonary veins into the right atrium. This conduit is widely patent. The remaining right atrium leads into a right atrioventricular valve with a somewhat redundant and folded leaflet. The outflow tract of the right ventricle leads through a normal appearing tricuspid valve measuring approximately 0.8 cm in diameter into the aorta. A patch measuring 1.2 cm in diameter has been positioned to divert the blood flow from the superior and inferior vena cava across the open foramen ovale into the left sided atrium. The left sided atrial chamber measures approximately 1.5 cm in greatest diameter and it is in wide communication with the inferior and superior vena cava. The left ventricular chamber outflow tract leads through a somewhat dilated valve with three cusps into a dilated pulmonary artery which divides into normal right and left branches.