Infarcts in the territory of lenticulostriate branches from the middle cerebral artery. Etiological factors and clinical features in 65 cases
Details
Serval ID
serval:BIB_FDC98FDCE8D2
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Infarcts in the territory of lenticulostriate branches from the middle cerebral artery. Etiological factors and clinical features in 65 cases
Journal
Schweizer Archiv fur Neurologie und Psychiatrie
ISSN
0258-7661 (Print)
Publication state
Published
Issued date
1991
Volume
142
Number
1
Pages
5-18
Notes
Journal Article
Abstract
We studied 65 consecutive patients with a first stroke who had an appropriate CT-proven small infarct in the territory of the lateral (61 patients), medial (3 patients) or both lateral and medial lenticulostriate arteries (1 patient) from the middle cerebral artery. While more than 75% of these patients were either hypertensive or diabetic (having at least one cause for small-artery disease), embolic sources were encountered in 35%, either from large vessels (28%), and/or from the heart (15%). Other causes (angiitis, migraine) were found in only 9%. The neurologic deficit was purely motor in more than 50% of the patients (in half of them with neuropsychological dysfunctions), a sensori-motor deficit was present in 30% (in half of them with neuropsychological dysfunctions), and only 20% had ataxic hemiparesis. No one had pure sensory stroke. None of the classical lacunar syndrome or the modality of sensory, motor or ataxic deficits were specific for any topographic subdivision of LS territory, but there was a tendency for clinical features to be linked with the involved basal ganglia and the topography of pathways in the internal capsule as delineated by anatomical studies. Pure motor deficits were associated with infarcts in the medial and posterior part of LS territory, visual field deficits and hemineglect always corresponded to posteriorly situated infarcts. Neuropsychological deficits were common in infarcts in the anterior and posterior subdivisions of LS territory, with a major effect of the size of infarct. Sensory deficits were not correlated with any location in LS territory, probably because thalamo-efferent fibres have a more diffuse course through the internal capsule.
Keywords
Aged
Brain Mapping
Cerebral Infarction/*etiology/radiography
Corpus Striatum/*blood supply
Diabetic Angiopathies/complications
Female
Humans
Hypertension/complications
Intracranial Embolism and Thrombosis/etiology/radiography
Male
Middle Aged
Neurologic Examination
Risk Factors
*Tomography, X-Ray Computed
Pubmed
Create date
25/01/2008 12:45
Last modification date
20/08/2019 17:28