[Surgical results of two cases of simultaneous carotid endarterectomy and coronary artery bypass grafting].

Reports on simultaneous revascularization operations for concomitant stenoses of the carotid and coronary arteries are many in Europe and America but few in Japan. Herein we report two cases of successful combined carotid endarterectomy and coronary artery bypass grafting. The first case was a 56-year-old male who had effort angina and a right carotid bruit with tinnitus. He was revealed to have severe stenosis of the right internal carotid artery as well as significant lesions of the right coronary artery. The second case was a 69-year-old male who had unstable angina and a left carotid bruit with a history of transient ischemic attack. Coronary angiography revealed three vessel disease and carotid digital subtraction angiography also revealed critical stenosis of the left internal carotid artery. In both cases, simultaneous carotid endarterectomy with an internal shunt and coronary artery bypass grafting were performed with a successful outcome. The use of internal shunt on reconstruction of the carotid artery was effective for protecting the brain.