Journal of anesthesia
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Journal of anesthesia · Aug 2010
Randomized Controlled TrialDifferential effects of hyperventilation on cerebral blood flow velocity after tourniquet deflation during sevoflurane, isoflurane, or propofol anesthesia.
The purpose of this study was to compare the degree of increase in middle cerebral artery (MCA) blood flow velocity after tourniquet deflation when modulating hyperventilation during orthopedic surgery under sevoflurane, isoflurane, or propofol anesthesia. Twenty-four patients undergoing elective orthopedic surgery were randomly divided into sevoflurane, isoflurane, and propofol groups. Anesthesia was maintained with sevoflurane, isoflurane, or propofol administration with 33% oxygen and 67% nitrous oxide at anesthetic drug concentrations adequate to maintain bispectral values between 45 and 50. ⋯ In addition, during the study period, no difference in V (mca) after tourniquet deflation was observed between the propofol and sevoflurane groups. Hyperventilation could prevent an increase in V (mca) in the propofol and sevoflurane groups after tourniquet deflation. However, hyperventilation could not prevent an increase in V (mca) in the isoflurane group.
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Journal of anesthesia · Aug 2010
Randomized Controlled TrialEffects of landiolol on systemic and cerebral hemodynamics and recovery from anesthesia in patients undergoing craniotomy.
Maintenance of systemic and cerebral hemodynamics and quick recovery from anesthesia are required for craniotomy. We conducted a prospective randomized study to investigate the effects of continuous infusion of landiolol on hemodynamic responses to various stimuli, changes in systemic and cerebral hemodynamics during anesthesia, and recovery from anesthesia in patients undergoing craniotomy. ⋯ This study indicates that continuous infusion of landiolol suppressed hyperdynamic responses to stimuli during anesthesia while maintaining arterial blood pressure and cerebral oxygen balance during craniotomy. Although landiolol infusion did not affect recovery from anesthesia and incidence of PONV, it reduced intraoperative requirement of fentanyl.
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Journal of anesthesia · Jun 2010
Randomized Controlled Trial Comparative StudyRemifentanil versus fentanyl compared in a target-controlled infusion of propofol anesthesia: quality of anesthesia and recovery profile.
The aim of the present study was to compare the clinical properties of fentanyl versus remifentanil in a target-controlled infusion (TCI) of propofol anesthesia regimen with bispectral index (BIS) monitoring. ⋯ We concluded that in propofol-based TCI anesthesia under BIS supervision for septorhinoplasty operations, remifentanil was better than fentanyl, especially with respect to emergence from total intravenous anesthesia (TIVA). Furthermore, the durations of anesthesia and operation were rather short, which indicates that fentanyl can be safely used.
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Journal of anesthesia · Jun 2010
Randomized Controlled Trial Comparative StudyUltrasound-guided peripheral nerve blocks for anterior cruciate ligament reconstruction: effect of obturator nerve block during and after surgery.
Three studies were conducted to determine whether and how the obturator nerve bears relevance to intra- and postoperative pain in patients undergoing anterior cruciate ligament (ACL) reconstruction using a hamstring autograft. ⋯ The present results suggest the involvement of the obturator nerve in ACL reconstruction using a hamstring autograft. However, although obturator nerve blockade is crucial for intraoperative analgesia, a continuous obturator nerve block is not necessary beyond 24 h postoperatively.
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Journal of anesthesia · Jun 2010
Randomized Controlled TrialEffect of intraoperative acetated Ringer's solution with 1% glucose on glucose and protein metabolism.
To investigate the effects of the intraoperative administration of Ringer's solution with 1% glucose on the metabolism of glucose, lipid and muscle protein during surgery. ⋯ The infusion of a small dose of glucose (1%) during minor otorhinolaryngeal, head and neck surgeries may suppress protein catabolism without hyperglycemia and hypoglycemia.