Journal of anesthesia
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Journal of anesthesia · Jan 2009
Randomized Controlled Trial Comparative StudyA comparison of intra-articular magnesium and/or morphine with bupivacaine for postoperative analgesia after arthroscopic knee surgery.
Both magnesium and morphine provide enhanced patient analgesia after arthroscopic knee surgery when administered separately via the intra-articular route. Magnesium sulfate amplifies the analgesic effect of morphine. This study was designed to compare the analgesic effects of intra-articular magnesium and morphine, with bupivacaine, when used separately and in combination. ⋯ Intra-articular administration of magnesium sulfate or morphine, with bupivacaine, had comparable analgesic effects in the doses used. Their combination provided more effective postoperative analgesia than either drug alone.
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Journal of anesthesia · Jan 2009
Case ReportsBronchoscope-guided intubation through a Laryngeal Mask Airway Supreme in a patient with a difficult-to-manage airway.
We report a case of an obese patient who presented with laryngeal edema and difficult ventilation after failed attempts to intubate. A Laryngeal Mask Airway Supreme (LMA Supreme) reestablished the ventilation and allowed bronchoscope- guided intubation of the trachea. The case suggests that the LMA Supreme may be useful in patients with a difficult airway.
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Journal of anesthesia · Jan 2009
Comparative StudyComparison of the effects of sevoflurane and isoflurane anesthesia on the maternal-fetal unit in sheep.
The aim of this study was to determine the hemodynamic and blood gas effects of inhalational anesthetics on the maternal-fetal sheep unit. The principal hypothesis, tested in chronically instrumented near-term pregnant ewes, was that sevoflurane anesthesia may be safe and useful for the mother and fetus during pregnancy, compared with isoflurane. ⋯ A "low-dose" concentration (0.5-1.0 MAC) of sevoflurane may be safe and useful for both mother and fetus during near-term pregnancy. However, a high concentration (1.5-2.0 MAC) of sevoflurane or isoflurane may induce hemodynamic instability in the mother and fetus when administered.
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Journal of anesthesia · Jan 2009
Randomized Controlled TrialEffects of adding magnesium to bupivacaine and fentanyl for spinal anesthesia in knee arthroscopy.
The aim of the study was to investigate the effects of adding intrathecal magnesium sulfate 50 mg to low-dose bupivacaine-fentanyl on the spread, duration, regression of spinal block, and postoperative analgesia in patients undergoing knee arthroscopy. ⋯ Even though the time to first analgesic requirement was prolonged significantly by magnesium, the addition of intrathecal magnesium sulfate to spinal anesthesia is not desirable in patients undergoing knee arthroscopy due to the prolonged time to ambulation and the lack of effect of magnesium on postoperative analgesic consumption.
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Journal of anesthesia · Jan 2009
Randomized Controlled TrialPostoperative analgesic effect of preoperative intravenous flurbiprofen in arthroscopic rotator cuff repair.
This study was carried out to evaluate the postoperative analgesic effects of preoperative intravenous flurbiprofen in patients undergoing arthroscopic rotator cuff repair under general anesthesia. ⋯ These results show that preoperative intravenous flurbiprofen facilitates the analgesic effect in the early postoperative period after arthroscopic rotator cuff repair.