Joint study of extracranial arterial occlusion. IX. Transient ischemic attacks in the carotid territory
W. S. Fields and N. A. Lemak
This prospective analysis of 79 patients with transient carotid ischemic
attacks (TIAs) showed that only 15% of them subsequently had strokes
causing serious disability or death. They were followed up from one to nine
years. All had arteriography during initial evaluation. Most of the
patients who suffered strokes had at least one additional risk factor for
stroke, such as hypertension or a cardiac problem. Today it is probably
impossible to collect data on the natural history of untreated TIAs,
inasmuch as virtually all patients are receiving either specific medical or
surgical therapy.
