Anesthesia and analgesia
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Anesthesia and analgesia · Feb 2014
Meta AnalysisLow-dose hydrocortisone therapy attenuates septic shock in adult patients but does not reduce 28-day mortality: a meta-analysis of randomized controlled trials.
The role of low-dose hydrocortisone in attenuating septic shock and reducing short-term mortality in adult patients with septic shock is unclear. We conducted a meta-analysis of previous studies to determine whether hydrocortisone could ameliorate the effects of septic shock at 7 and 28 days and reduce 28-day morality. ⋯ Although low-dose hydrocortisone therapy ameliorates septic shock at 7 and 28 days, it does not reduce 28-day mortality.
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Anesthesia and analgesia · Feb 2014
Brachial artery catheterization: an assessment of use patterns and associated complications.
Although studies have compared safety and outcomes of radial artery cannulation with other arterial catheterization locations, there is insufficient information describing brachial artery catheterization. In this study, we characterized the perioperative use patterns and the complication rates associated with brachial arterial catheterization and compared these outcomes with radial artery catheterization. ⋯ We found that brachial artery catheterization is used in more medically complex patients and for longer duration than radial artery catheterizations. Although the limited number of adverse outcomes precluded statistical adjustments in this investigation, the observed differences in complication rates between cannulation methods suggest that brachial artery catheterization may be a suitable alternative to radial artery catheterization in patients with complex medical comorbidities.
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Anesthesia and analgesia · Feb 2014
Meta AnalysisTransversus abdominis plane block to ameliorate postoperative pain outcomes after laparoscopic surgery: a meta-analysis of randomized controlled trials.
Meta-analysis of 10 RCTs totalling 633 subjects showed that while pain at rest following laparoscopic surgery was reduced by transverse abdominis plane block, early (0-4 h) pain was only moderately reduced (-2.4 cm) and late pain (24 hours) minimally reduced (-1.3 cm). Pain with movement was not significantly different between TAP blocks and controls.
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Anesthesia and analgesia · Feb 2014
The effect of propofol on intrathecal morphine-induced pruritus and its mechanism.
Previous studies have shown that a low dose of propofol IV bolus had a beneficial effect on intrathecal morphine-induced pruritus in humans. However, its exact mechanism has not been fully understood. In this study, we hypothesized that propofol relieved intrathecal morphine-induced pruritus in rats by upregulating the expression of cannabinoid-1 (CB[1]) receptors in anterior cingulate cortex (ACC). ⋯ Morphine elicits dose-independent scratching responses after intrathecal injection in rats. Morphine 40 μg/kg intrathecal injection-induced scratching responses can be prevented by propofol. Increased protein expression of CB(1) receptors in ACC may contribute to the reversal of intrathecal morphine-induced scratching.
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The time between the beginning of anesthetic administration and recognition of the first sign of malignant hyperthermia (MH) (MH onset time) could differ among anesthetic drugs. ⋯ The onset of MH has been observed later during desflurane and isoflurane anesthesia than during exposure to sevoflurane. Since 1998, MH signs have more often appeared later, in the second or third hour of anesthesia, than they did before 1998.