Journal of anesthesia
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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
Continuous intra-arterial blood gas monitoring during thoracic surgery.
This study was undertaken to assess the clinical usefulness of a continuous intra-arterial blood gas (CIABG) monitoring system, Paratrend 7, during thoracic surgery. ⋯ The agreement between CIABG and ABG measurements was better for PCO(2) and pH than for PO(2). The PO(2) value displayed on the CIABG monitor may not always be reliable during thoracic surgical procedures.
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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.
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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 1999
Randomized Controlled Trial Clinical TrialProphylactic antiemetic therapy with droperidol in patients undergoing laparoscopic cholecystectomy.
The incidence of postoperative nausea and vomiting (PONV) following laparoscopic cholecystectomy (LC) is relatively high when no prophylactic antiemetic is given. We have studied the efficacy of a commonly used and well-established antiemetic, droperidol, for the prevention of PONV in patients undergoing LC. ⋯ Prophylactic antiemetic therapy with droperidol 50 microg.kg(-1) (maximum dose, 2.5 mg) is highly effective for preventing PONV after LC.