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Department of Neurology, Northwestern University Medical School, and the Department of Neurology, Veterans Administration Lakeaide Medical Center, Chicago, IL.
We reviewed bilateral carotid angiograms of 74 patients with strictly unilateral carotid ischemic symptoms to evaluate asymptomatic atherosclerosis. Symptomatic arteries showed more stenosis than the asymptomatic counterparts, especially in patients with multiple TIAs, amaurosis fugax, or TIAs lasting less than 60 minutes. However, the frequency or degree of ulceration did not differ, and the proportion of stenotic lesions that appeared ulcerated was nearly equal on the symptomatic and asymptomatic sides.
Address correspondence and reprint requests to Dr. Miller, Department of Neurology, Northwestem Medical School, 303 East Chicago Avenue, Chicago, IL 60611.
Received June 24, 1986. Accepted for publication in final form September 19, 1986.
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