Journal of anesthesia
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Journal of anesthesia · Jan 2000
Randomized Controlled Trial Clinical TrialEffects of sevoflurane compared with those of isoflurane on arterial oxygenation and hemodynamics during one-lung ventilation.
This study was designed to compare the effects of sevoflurane and isoflurane on Pao(2) and hemodynamic variables during one-lung ventilation (OLV) in surgical patients. ⋯ The effects of sevoflurane on PaO(2) and the hemodynamic variables were similar to those of isoflurane during TLV and OLV in the lateral decubitus position.
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Journal of anesthesia · Jan 2000
Effects of nitric oxide synthase inhibition on extracellular glutamate and cerebral blood flow during forebrain ischemia-reperfusion in rat in vivo.
To evaluate factors involved in global forebrain ischemia-reperfusion, the effects of the systemically administered NOS inhibitor, N(G)-nitro-L-arginine methyl ester (L-NAME), on changes in extracellular glutamate and cerebral blood flow (CBF) were studied during the early period of global forebrain ischemia-reperfusion, simultaneously measuring the glutamate released in the rat forebrain cortex and cortical CBF. ⋯ A remarkable linear increase in glutamate release was observed during ischemia. L-NAME did not prevent this dramatic glutamate accumulation, and moreover, its level increased during reperfusion. The decrease in CBF response after reperfusion might be a factor of the elevated glutamate after reperfusion due to a decrease in reuptake of glutamate.
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Journal of anesthesia · Jan 2000
Unanswered and uncounted items of the illness behavior questionnaire count: a comparison between patients who answered all the items in the questionnaire and those who left one or more items unanswered in a pain management program.
This study aimed to understand the significance of unanswered and uncounted items on the illness behavior questionnaire (IBQ) in the setting of the Mayo Clinic pain management program for patients with chronic pain. ⋯ Unanswered and uncounted items of the IBQ seem to count toward a better understanding of patients' pain behavior.
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Journal of anesthesia · Jan 2000
Changes in hemodynamic variables and catecholamine levels after rapid increase in sevoflurane or isoflurane concentration with or without nitrous oxide under endotracheal intubation.
Rapid increases in concentrations of isoflurane and desflurane in oxygen have been shown to increase sympathetic activity. The aim of this study was to determine whether concomitant administration of nitrous oxide would reduce these sympathomimetic effects of volatile anesthetics. ⋯ Even if nitrous oxide was added to isoflurane or sevoflurane, the increase in heart rate could not be avoided. Contrary to previous reports, severe hyperdynamic circulation was not observed after a rapid increase in isoflurane concentration.
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Journal of anesthesia · Jan 2000
Effects of sevoflurane and isoflurane on the ratio of cerebral blood flow/metabolic rate for oxygen in neurosurgery.
To examine the changes in cerebral blood flow (CBF) equivalent (CBF divided by cerebral metabolic rate for oxygen) during craniotomy under isoflurane and sevoflurane anesthesia in patients with intracranial disorders. ⋯ Deepening anesthesia from 0.5 to 1.0 MAC was maintained with no difference between the two agents during 4h of neurosurgery.