Stroke, Vol 16, 785-790, Copyright © 1985 by American Heart Association
PB Gorelick, LR Caplan, DB Hier, D Patel, P Langenberg, MS Pessin, J Biller and D Kornack
We compared clinical and arteriographic features in 27 white and 24 black
patients with symptomatic posterior circulation occlusive disease. The
degree of arterial stenosis was measured independently by two examiners at
12 sites within the vertebrobasilar territory. Racial comparisons were made
based upon the distribution of extra- and intracranial occlusive lesions
and symptomatic sites of the lesions. White patients had significantly more
angina pectoris, more lesions of the origin of the left vertebral artery
and more high grade lesions of the extracranial vertebral arteries. Black
patients had significantly higher mean diastolic blood pressure, more
diabetes mellitus, more lesions of the distal basilar artery, more high
grade lesions of intracranial branch vessels and more symptomatic
intracranial branch disease. Race was found to be the only factor
increasing the risk of intracranial posterior circulation occlusive
disease. Knowledge of the contribution of race to the distribution of
posterior circulation lesions will help guide evaluation and treatment
strategies for patients with vertebrobasilar occlusive disease.
ARTICLES
Racial differences in the distribution of posterior circulation occlusive disease
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