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Emergency carotid surgery.

The authors discuss the indications for emergency carotid endarterectomy, based on their experience between 1956 and 1975 when 15 patients with completed stroke and internal carotid occlusion (Group I) underwent this operation, and after 1975 when emergency revascularization was performed in 22 patients with unstable neurological deficit (Group II) and 21 patients with TIA's associated with preocclusive internal carotid stenosis (Group III). The good early and late results show that surgery was indicated in these cases. An attempt to identify the patients at high risk of acute ischemia on the basis of clinical or anatomical findings is made to ascertain the physiopathologic patterns of cerebral ischemia.