Cerebral blood flow during induced hypotension
نویسندگان
چکیده
منابع مشابه
Cerebral blood flow during dihydralazine-induced hypotension in hypertensive rats.
The cerebrovascular effects of graded, controlled dihydralazine-induced hypotension were studied in rats with renal hypertension (RHR) and spontaneous hypertension (SHR). Repeated measurements of cerebral blood flow (CBF) were made using the intraarterial 133Xenon injection technique in anaesthetised normocapnic animals. Dihydralazine was administered in single increasing i.v. doses (0.1 to 2 m...
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The effect of graded, progressive hypotension on the autoregulation of cerebral blood flow was studied in anaesthetised baboons. Progressive hypotension was produced over a period of four to five hours, either by graded haemorrhage or by the administration of increasing concentrations of hypotensive drugs. During haemorrhagic hypotension autoregulation was maintained until the mean arterial pre...
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Cerebral vascular responses to hypocapnia during hypotension to a mean arterial blood pressure (MAP) = 50 mm Hg induced with sodium nitroprusside (SNP, n = 12) or trimethaphan (TMP, n = 12) were examined in dogs. Cerebral vascular resistance (CVR) and cerebral blood flow (CBF) at PaCO2 = 40 mm Hg, and PaCO2 = 20 mm Hg were examined first at normal MAP then at hypotension in six dogs in the SNP ...
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UNLABELLED Dopamine has a wide spectrum of receptor and pharmacologic actions that may affect cerebral blood flow (CBF). A new, selective dopamine-1 agonist, fenoldopam, is a potent systemic vasodilator with moderate alpha(2)-receptor affinity. However, the effects of fenoldopam on the cerebral circulation are undefined. We therefore hypothesized that infusion of fenoldopam would decrease mean ...
متن کاملCerebral blood flow and metabolism during hypotension induced with sodium nitroprusside.
Cerebral blood flow and metabolism have been studied in 11 patients during general anaesthesia and hypotension induced with sodium nitroprusside in combination with captopril. Cerebral blood flow was measured, using a Novo Cerebrograph model 10A, after injection of 133 xenon into an arm vein. Arterial and venous blood samples were drawn to calculate cerebral metabolism. Captopril 1 mg.kg-1 oral...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1995
ISSN: 0007-0912
DOI: 10.1093/bja/74.6.635