[Transposition of the great arteries with posterior aorta]

Two cases of transposition of the great arteries (TGA) with posterior aorta are reported. The first was submitted to the Senning procedure with good outcome; the other had the diagnosis of double outlet right ventricle with severe pulmonary stenosis, and a Blalock-Taussig shunt was accomplished for hypoxic crisis. The patient died 11 days after surgery and the necropsy demonstrated TGA with posterior aorta. In both cases there was a sub-pulmonary infundibulum. The presence of ventricular septal defects allowed aortic-mitral fibrous continuity, a finding previously described in anatomical reports. Clinical and angiographic aspects are discussed.