Cerebrovascular diseases
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Cerebrovascular diseases · Jan 2011
Prediction of silent ischemic lesions after carotid artery stenting using virtual histology intravascular ultrasound.
A major concern with carotid artery stenting (CAS) is the potential for cerebral embolism. The purpose of this study was to determine whether virtual histology intravascular ultrasound (VH-IVUS) can predict the risk of a silent ischemic lesion after CAS. ⋯ Quantitative tissue characterization of atherosclerotic lesions of carotid arteries using VH-IVUS was useful to predict NISIL after CAS. However, the positive predictive value determined by VH-IVUS was not superior to that determined by a noninvasive method.
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Cerebrovascular diseases · Jan 2011
Local head and neck cooling leads to hypothermia in healthy volunteers.
Prehospital cooling of acute stroke patients would be ideal when associated with minor or no side effects. Therefore, we evaluated a cooling cap for the surface of head and cervical regions in awake volunteers. ⋯ Treatment with the cooling device was well tolerated by all participants. The technique had measurable effects on core body temperature (rectal) and tympanic temperature (may reflect temperature at the external ear and skin rather than intracranial). It can be considered as a simple therapeutic approach to patients with suspected stroke in the prehospital setting.
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To study the characteristics of vascular aphasia in a cohort of patients with a first-ever stroke. ⋯ Risk factors for stroke aphasia are age, cardioembolic origin and superficial MCA stroke. Exceptions to classic clinical-topographic correlations are not rare. Stroke aphasia is associated with relevant disability. Stroke location and associated symptoms strongly influence aphasia subtypes.