[A case report of innominate and carotid artery aneurysms causing cerebral embolism].

Brachiocephalic aneurysms are relatively rare in Japan. A case with tandem aneurysms of innominate and right carotid artery was experienced and its successful surgical treatment was reported. A 54-year-old female patient had an attack of cerebral infarction with left hemiparesis. Computed tomography and angiogram revealed aneurysms of innominate and right carotid artery causing cerebral embolisms. Aneurysmectomy and replacement with Dacron prosthesis was performed. A temporary shunt was utilized between ascending aorta and common carotid artery during clamping carotid artery. She had no problems after operation, and her postoperative course was uneventful.