Section 7
Chapter 6,828

Transient ischemic attacks and external carotid artery. A retrospective study of 23 patients with an occlusion of the internal carotid artery

Bogousslavsky, J.; Regli, F.; Hungerbühler, J.P.; Chrzanowski, R.

Stroke 12(5): 627-630


ISSN/ISBN: 0039-2499
PMID: 7303048
DOI: 10.1161/01.str.12.5.627
Accession: 006827673

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Patients (23) with occlusion of an internal carotid artery were followed 5-60 mo. after angiography. None had a later permanent stroke. Eight had delayed TIA [transient ischemia attacks] in the occluded internal carotid area, never in another area. In these TIA the role of the homolateral external carotid artery is emphasized, because in the 8 cases this artery was the main collateral to the occluded internal carotid, and angiography had shown atheromatous stenosis of homolateral external/common carotid arteries or an irregular stump at the site of the occlusion. Hemodynamic and embolic mechanisms are discussed, especially the latter, because of the absence of severe stenosis and evidence of emboligenic plaques.

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