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Stroke, Vol 15, 964-967, Copyright © 1984 by American Heart Association

ARTICLES

The case against surgery for asymptomatic carotid stenosis

BR Chambers and JW Norris

Asymptomatic cervical bruits with their implication of underlying carotid artery disease, carry an established but low risk of stroke. In spite of the rising numbers of patients subjected to carotid endarterectomy for this condition, there is little evidence that the benefits outweight the risks. Outcome data from community studies and the current prospective Toronto study of patients with asymptomatic neck bruits indicate that the annual stroke rate is 1-2%, and the annual cardiac death rate is 2-4%. Published data of the results of carotid surgery suggest that surgical risks outweigh any possible benefits, unless a subgroup with spontaneous stroke risk of at least 5% can be identified.

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