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Updated: Aug 15, 2026

Bilateral Common Carotid Artery Occlusion as an Adequate Preconditioning Stimulus to Induce Early Ischemic Tolerance to Focal Cerebral Ischemia
Published on: May 9, 2013
Bilateral hypoglossal nerve injury after bilateral carotid endarterectomy
1Department of Neurology, Lahey Clinic Medical Center, Burlington, MA 01805.
Abstract:
A case of severe bilateral injury to the hypoglossal nerves after two-stage carotid endarterectomy is described. Injury to the hypoglossal nerve occurs in up to 20% of patients undergoing carotid endarterectomy and may result in mild or unnoticed deficits. These injuries must be carefully searched for in patients who will undergo a similar procedure on the opposite side since a bilateral deficit of the hypoglossal nerve is poorly tolerated, causing potentially serious impairment of speech and risk of aspiration.
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