[Anomalous origin of the right pulmonary artery from the ascending aorta: a report of three cases].

Three patients with anomalous origin of the right pulmonary artery from the ascending aorta were reported. Case 1 was a 16-day-old girl with the right pulmonary artery arising from the base of the ascending aorta. Division and direct anastomosis of the anomalous vessel to the pulmonary trunk were successfully performed. Case 2 was a 4-month-old girl with the kinked and stenotic right pulmonary artery arising from the distal ascending aorta. At the time of surgery, however, the right pulmonary artery had been completely occluded and the pulmonary hypertension of the main pulmonary trunk had been disappeared. The chest was closed without any corrections. Case 3 was a 17-month-old girl with the stenotic right pulmonary artery arising from the distal ascending aorta. The stenotic lesion of the right pulmonary artery was longitudinally incised and anastomosed with the PTFE graft in an end-to-end fashion, followed by the end-to-side anastomosis of the graft and the pulmonary trunk.