منابع مشابه
Cerebral blood flow in migraine accompaniments and vertebrobasilar ischemia.
BACKGROUND AND PURPOSE Transient neurological symptoms of brain stem or occipital lobe origin may be caused by transient ischemic attack in the vertebrobasilar territory (VB-TIA) or late-onset (or late-life) migraine accompaniment (LOMA). It is often clinically difficult to distinguish between VB-TIA and LOMA. METHODS Cerebral blood flow of 23 patients with VB-TIA, 24 with LOMA, and 28 age-ma...
متن کاملCerebral oxygen extraction, oxygen consumption, and regional cerebral blood flow during the aura phase of migraine.
BACKGROUND AND PURPOSE The aura phase of migraine is associated with focal blood flow changes, but it has been largely unknown whether these changes are correlated to changes in the cerebral metabolism. METHODS Eight patients required carotid angiography for evaluation of transient neurological attacks. Cerebral blood flow (CBF) results, angiography, and clinical observations subsequently sug...
متن کاملWhole blood viscosity and cerebral blood flow.
BLOOD has anomalous rheological properties, particularly in certain disease states. It may therefore be necessary to consider these properties when attempting to assess and perhaps to improve the state of a patient's cerebral circulation. So what evidence is there that cerebral blood flow (CBF) is affected by viscosity? Before attempting to answer this question, one should be aware of what infl...
متن کاملErgotamine and cerebral blood flow.
We measured the cerebral blood flow (CBF) of 16 patients by the xenon-133 intracarotid method before and after the intramuscular injection of ergotamine tartrate. The regional and hemispheric CBF was unaltered, even in 3 migraneurs in who ergotamine relieved the headache. Ergotamine tartrate in therapeutic doses has no effect on the cerebral circulation.
متن کاملHyperventilation 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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ژورنال
عنوان ژورنال: Pediatric Neurology Briefs
سال: 2008
ISSN: 2166-6482,1043-3155
DOI: 10.15844/pedneurbriefs-22-8-6