Cerebrovascular diseases
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Cerebrovascular diseases · Jan 2007
Comparative StudyAnatomic variations in the circle of Willis in patients with symptomatic carotid artery stenosis assessed with multidetector row CT angiography.
To assess the presence of anterior and posterior collateral pathways in the circle of Willis in patients with symptomatic carotid artery stenosis (SCAS) and to compare this to patients without carotid artery stenosis. ⋯ A compromised anterior collateral pathway, usually combined with a compromised posterior pathway, occurs more frequently in patients with SCAS as compared to controls, which suggests a relation between symptomatic carotid stenosis and an incomplete circle of Willis.
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Cerebrovascular diseases · Jan 2007
Comparative StudyTrends in risk factors, patterns and causes in hospitalized strokes over 25 years: The Lausanne Stroke Registry.
The Lausanne Stroke Registry includes, from 1979, all patients admitted to the department of Neurology of the Lausanne University Hospital with the diagnosis of first clinical stroke. Using the Lausanne Stroke Registry, we aimed to determine trends in risk factors, causes, localization and inhospital mortality over 25 years in hospitalized stroke patients. ⋯ This study shows major trends in the characteristics of stroke patients admitted to a department of neurology over a 25-year time span, which may result from referral biases, development of acute stroke management and possibly from the evolution of cerebrovascular risk factors.
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Cerebrovascular diseases · Jan 2007
Mild mechanical traumas are possible risk factors for cervical artery dissection.
Cervical artery dissection (CAD) is a common cause of ischemic stroke in younger aged subjects. Retrospective studies suggest cervical manipulative therapy (CMT) and preceding infections as extrinsic risk factors for CAD. In a case-control study, we assessed a questionnaire with 7 mild mechanical traumas as potential trigger factors for CAD, including CMT and recent infections. ⋯ Mild mechanical stress, including CMT, plays a role as possible trigger factor in the pathogenesis of CAD. CMT and recent infections alone failed to reach significance during the present investigation, presumably due to the relatively small sample size of the study cohort.
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Cerebrovascular diseases · Jan 2007
Dysarthria due to supratentorial and infratentorial ischemic stroke: a diffusion-weighted imaging study.
Dysarthria characterized by slurring with imprecise articulation without evidence of aphasia is a frequent symptom in the acute phase of cerebral ischemia, although there is little knowledge on its anatomic specificity and spectrum of associated clinical characteristics regarding diffusion-weighted imaging (DWI). ⋯ Cortical involvement was more frequent in patients with pure dysarthria than those with dysarthria and additional neurological signs, while the frequency of pontine involvement was higher in patients with additional neurological signs than those with pure dysarthria. One third of the patients with dysarthria had multiple lesions on DWI, and the most common cause of stroke was small-artery disease. Pure dysarthria, dysarthria with lingual paresis, dysarthria with clumsy hand and dysarthria with facial paresis had predictive value for lacunar lesions.
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The number of persons reaching the age 80 years and over is increasing in most populations. Literature focusing on hypertensive intracerebral hemorrhage (ICH) in this age group is lacking. Therefore, we aimed to analyze the main clinical characteristics of ICH of the advanced old age, in the context of hypertension. ⋯ ICH occurring in hypertensive patients aged > or =80 years has several differences from that seen in younger people; however, these differences do not seem to impact on early outcome.