Reactivity of the middle cerebral artery to carbon dioxide
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چکیده
.............................................................................................................................. ii Co-Authorship Statement................................................................................................... iv Epigraph .............................................................................................................................. v Dedication .......................................................................................................................... vi Acknowledgments............................................................................................................. vii Table of
منابع مشابه
Cerebral pressure autoregulation and carbon dioxide reactivity during propofol-induced EEG suppression.
We studied cerebral pressure autoregulation and carbon dioxide reactivity during propofol-induced electrical silence of the electroencephalogram (EEG) in 10 patients. Anaesthesia was induced with propofol 2.5 mg kg-1, fentanyl 3 micrograms kg-1 and vecuronium 0.1 mg kg-1, and a propofol infusion of 250-300 micrograms kg-1 min-1 was used to induce EEG silence. Cerebral pressure autoregulation wa...
متن کاملReactivity of cerebral blood flow to carbon dioxide in various types of ischemic cerebrovascular disease: evaluation by the transcranial Doppler method.
BACKGROUND AND PURPOSE The response of cerebral blood flow to changes in the arterial carbon dioxide partial pressure (i.e., carbon dioxide reactivity) has been evaluated as a parameter of cerebral perfusion reserve in patients with cerebrovascular disease. In this study, variations in this reactivity in various ischemic cerebrovascular diseases were evaluated by a newly established method, a t...
متن کاملDioxide in Various Types of Ischemic Cerebrovascular Disease: Evaluation by the Transcranial Doppler Method
Background and Purpose: The response of cerebral blood flow to changes in the arterial carbon dioxide partial pressure (i.e., carbon dioxide reactivity) has been evaluated as a parameter of cerebral perfusion reserve in patients with cerebrovascular disease. In this study, variations in this reactivity in various ischemic cerebrovascular diseases were evaluated by a newly established method, a ...
متن کاملSeverely impaired cerebrovascular reactivity predicts stroke and TIA risk in patients with carotid artery stenosis and occlusion.
Cross-sectional studies suggest that impaired cerebral haemodynamics is associated with symptomatic status in patients with carotid stenosis and occlusion, but there is relatively little prospective data confirming this association. Transcranial Doppler ultrasonography was used to determine the reactivity of the middle cerebral artery to 8% carbon dioxide in air in 107 patients with either caro...
متن کاملCharacterization of arteriovenous malformation feeding vessels by carbon dioxide reactivity.
PURPOSE To characterize cerebral hemodynamics in patients immediately before microsurgical resection of moderate to large arteriovenous malformations during isoflurane anesthesia. METHODS In angiographically defined arteriovenous malformation feeding and nonfeeding arteries, transcranial Doppler studies were performed in 25 surgeries on 22 patients. The mean blood flow velocity and pulsatilit...
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