Abstract
Intrathoracic aneurysms of the subclavian artery are rare and the operative procedures varied from location to location of the aneurysms. A case of arteriosclerotic intrathoracic aneurysm of the left subclavian artery is reported. The case was a 63-year-old man who was found to have a left superior mediastinal mass by chest roentgenogram. Angiography and CT revealed that it was an aneurysm of the intrathoracic left subclavian artery. The chest was opened by trap-door style incision. Under the temporary bypass which was bridged from the ascending aorta to the left common carotid and to the right femoral artery with Y-shaped woven Dacron graft (16×8 mm), the aneurysm was easily removed. The left subclavian artery was reconstructed with left carotid artery bypass graft reversely.
This procedure was again useful for keeping brain perfusion to remove the intrathoracic subclavian aneurysm.
