PMID: 2505504Jul 1, 1989Paper

Local intraarterial fibrinolysis in the carotid territory.

AJNR. American Journal of Neuroradiology
J TheronD Maiza

Abstract

A series comprising 12 patients who had intraarterial local fibrinolysis in the carotid territory is reported. A classification is proposed that divides the different types of occlusions into three groups on the basis of angiographic location. Group 1 (two cases) comprises occlusion of the extra- and/or intracranial carotid artery with patency of the circle of Willis and the lenticulostriate arteries. In this group, there is no brain infarction, the CT findings are normal, and the clinical signs are mainly hemodynamic and intermittent. Fibrinolysis may be performed late and rather safely and completed by surgery or angioplasty of the neck vessel stenosis responsible for the occlusion. Group 2 (five cases) comprises occlusions of the cortical arteries without involvement of the lenticulostriate arteries. The mechanism of the occlusion can be hemodynamic or embolic. Group 3 (five cases) comprises occlusions of intracerebral arteries involving the lenticulostriate arteries. In groups 2 and 3 with brain infarction, fibrinolysis will only be able to restore viability of the area of cerebral tissue surrounding the infarction (penumbra). The time factor is particularly critical in group 3 because lenticulostriate arteries are terminal...Continue Reading

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