[Successful repair for impending ruptured subclavian artery aneurysm; report of a case].

: Subclavian artery aneurysm is relatively rare. We report a case of an impending rupture of an atherosclerotic aneurysm of the extrathoracic subclavian artery. A 61-year-old male patient with right hemiparesis due to prior cerebral infarction was referred to our hospital for treatment of an enlarging pulsatile mass with continuous pain around the right clavicle. Computed tomography of the chest revealed a fusiform subclavian artery aneurysm with a maximum diameter of 58 mm. An emergency operation was performed following the diagnosis of an impending rupture of the right subclavian artery aneurysm. Using a continuous incision from the supra to sub-clavicular regions, the right subclavian artery aneurysm was replaced with a straight vascular graft, 12 mm in diameter. Although several postoperative complications, such as respiratory insufficiency and renal dysfunction occurred, he was transferred to a rehabilitation hospital on the 110th postoperative day.