Abstract
A 47-year-old man visited his local hospital complaining of numbness in his left arm. Computed tomography revealed a left subclavian artery aneurysm for which he was referred to our hospital for surgery. However, because of arterial embolism of the left upper extremity and retrograde cerebral thrombosis arising from a mural thrombus of the aneurysm developed preoperatively and surgery was performed by supraclavicular and infraclavicular incisions. The aneurysm was excluded and the left subclavian artery was reconstructed with an artificial graft. Aggressive surgical management is necessary for subclavian artery aneurysms, because they may be complicated with not only arterial embolisms of the arm but also cerebral infarction.
