HYPERVENTILATION AND CEREBRAL DAMAGE
نویسندگان
چکیده
منابع مشابه
Hyperventilation and cerebral blood flow.
Hyperventilation and Cerebral Blood Flow • Hypocapnic-hyperventilation has a profound, but probably temporary, effect on CBF, producing approximately a 2% decline in CBF for each 1 torr decline in Pcov Th' effect appears to be mediated through changes in perivascular pH of the cerebral resistance vessels acting directly on the vessel wall. At low PC0;( the vasoconstrictor effect of short-term h...
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This review summarizes evidence in humans for an association between hyperventilation (HV)-induced hypocapnia and a reduction in cerebral perfusion leading to syncope defined as transient loss of consciousness (TLOC). The cerebral vasculature is sensitive to changes in both the arterial carbon dioxide (PaCO2) and oxygen (PaO2) partial pressures so that hypercapnia/hypoxia increases and hypocapn...
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An unmarried man aged 51 had suffered from chronic bilateral anterior and posterior uveitis of unknown aetiology for seven years. Because the condition was poorly controlled with atropine and local steroids, oral Prednisone, 60 mg. daily, was added to the treatment and the dose was progressively reduced over three months to 35 mg. daily. Supplementary protein and potassium were given and the ca...
متن کاملCerebral metabolic effects of hyperventilation and deliberate hypotension.
A No. 1 Macintosh blade and a 3.5-mm red rubber endotracheal tube with stylet are used. Intubation of the cat is frequently more difficult than intubation of a child since the cat has large, sharp teeth, a large tongue, copious salivation, a small anterior larynx and dome-shaped arytenoid cartilages. Intubation of the cat is a dynamic demonstration which simulates future experiences and gives s...
متن کاملHyperventilation before resistance exercise: cerebral hemodynamics and orthostasis.
UNLABELLED Hyperventilation performed by athletes during preparation for resistance exercise might contribute to reports of postexercise orthostatic instability. PURPOSE To test the hypothesis that post-resistance exercise orthostatic instability is associated with exaggerated reductions of cerebral blood-flow velocity after hyperventilation. METHODS We recorded the ECG, end-tidal CO2, beat...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1963
ISSN: 0007-0912
DOI: 10.1093/bja/35.2.130-b