Journal of clinical anesthesia
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Randomized Controlled Trial Clinical Trial
Atropine prevents midazolam-induced core hypothermia in elderly patients.
To test the hypothesis that core temperature is well preserved when atropine and midazolam are combined. ⋯ The thermoregulatory effects of benzodiazepine receptor agonist and cholinergic inhibitors oppose each other, and the combination leaves core temperature unchanged.
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To evaluate the effect of positive end-expiratory pressure (PEEP) and continuous positive airway pressure (CPAP) on the oxygenation and shunt fraction during one-lung ventilation (OLV). ⋯ The application of PEEP to the dependent lung, CPAP to the nondependent lung, and the combination of PEEP and CPAP, are useful for improving oxygenation and decreasing Qs/Qt.
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To complement previous studies that employed indirect methods of measuring anesthesia drug waste. ⋯ The results of this study are similar to those of previous studies that employed electronic record keeping techniques to calculate drug waste. Intravenous drugs that are prepared but unused may be a significant cost of intraoperative anesthesia care. Methods to reduce the amount of drug wasted are proposed.
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Case Reports
Interscalene brachial plexus anesthesia for shoulder surgery: report of a complicated intraoperative course.
We present a case of abrupt hemodynamic and mental status changes that occurred during shoulder surgery. During interscalene anesthesia for rotator cuff repair, there was abrupt onset of altered mental status and hemodynamic changes, which had a variety of possible contributing causes. Complete recovery occurred during care in the post-anesthesia care unit. A variety of physiologic changes can occurred during interscalene anaesthesia for shoulder surgery, which require prompt identification and management.