Bilateral internal carotid arteries occlusion, external carotid arteries stenosis and vertebral arteries kinking- may it be asymptomatic?

The clinical spectrum of internal carotid artery occlusion ranges from being a completely asymptomatic occlusion to a devastating stroke or death. The prevalence of asymptomatic internal carotid artery occlusion is unknown, particularly for bilateral occlusion. The distal branches of the external carotid artery anastomose with distal branches of the internal carotid artery providing important sources of collateral circulation to the brain. Stenosis of the external carotid artery with ipsilateral/bilateral internal occlusion may result in ischemic sequelae.
Source: Annals of Vascular Surgery - Category: Surgery Authors: Source Type: research