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Article
December 1988

The 'Herald Hemiparesis' of Basilar Artery Occlusion

Author Affiliations

From the Neurology Service, Massachusetts General Hospital, Boston.

Arch Neurol. 1988;45(12):1301-1303. doi:10.1001/archneur.1988.00520360019004
Abstract

• In thrombosis of the basilar artery, not infrequently a hemiparesis is present at an early stage, when brain-stem signs may be absent or few, slight or equivocal. It is natural to suspect that such a hemiparesis signifies localization in a cerebral hemisphere, but unexpectedly in a few hours bilateral hemiplegia appears associated with coma or a locked-in syndrome, indicating basilar artery occlusion. I would term this disarming hemiparesis the "herald hemiparesis" of basilar artery occlusion. If the true nature of the condition is recognized early, the use of heparin and other measures may forestall disaster.

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