Surgical Treatment of Atherosclerotic Occlusive Lesions
نویسنده
چکیده
IT IS now well established that cerebral arterial insufficiency may often be caused by atheromatous occlusive lesions located in the extracranial portions of the arteries supplying the brain.'-13 Although its incidence has not been accurately determined, more extensive application of arteriography in the study of such patients suggests that this type of ocelusion occurs in more than one third of the cases of cerebral arterial insufficiency. While the occlusive process may be variable in its pathologic features, it tends to assume certain characteristic patterns, particularly as to location, with the most frequent sites being at the origins of the internal carotid, innominate, left common carotid, and vertebral arteries. Multiple lesions are frequent, occurring in 40 per cent of the cases. The limitations of collateral circulation imposed by this frequency of multiple arterial involvement, the progressive nature of the occlusive process, and the dismal prognosis resulting from conservative therapy emphasize the desirability of a more direct attack designed to restore normal blood flow and preserve cerebral function.
منابع مشابه
Surgical treatment of atherosclerotic occlusive lesions in patients with cerebral arterial insufficiency.
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