Journal of anesthesia
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Journal of anesthesia · Dec 2010
Randomized Controlled Trial Comparative StudyEvaluation of tracheal intubation in several positions by the Pentax-AWS Airway Scope: a manikin study.
In emergency situations, rescuers must occasionally secure the airway while the patient is in a restricted position rather than in the ideal supine position. We hypothesized that the Pentax-AWS Airway Scope (AWS) may be useful for emergent tracheal intubation in such positions. ⋯ Although tracheal intubations with AWS in all five positions tested were successful, intubation with the patient in the Sitting, Right-LT, and Prone positions was more difficult and required more time than that in the Supine position.
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Journal of anesthesia · Dec 2010
Randomized Controlled TrialQuality of lidocaine analgesia with and without midazolam for intravenous regional anesthesia.
Midazolam has analgesic effects mediated by gamma aminobutyric acid-A receptors. This study was designed to evaluate the effect of midazolam on anesthesia and analgesia quality when added to lidocaine for intravenous regional anesthesia (IVRA). ⋯ Addition of midazolam to lidocaine for IVRA improves anesthesia quality and enhances intraoperative and postoperative analgesia without causing side effects.
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Journal of anesthesia · Dec 2010
Randomized Controlled TrialThe effect of injection speed on the spinal block characteristics of hyperbaric bupivacaine 0.5% in the elderly.
The purpose of this prospective, randomized, double-blind study was to compare anesthetic characteristics after two speeds of intrathecal injection of hyperbaric bupivacaine in elderly patients. ⋯ An eightfold difference in speed of intrathecal injection of 0.5% hyperbaric bupivacaine did not affect the clinical characteristics of spinal anesthesia in elderly patients undergoing transurethral surgery.
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Journal of anesthesia · Dec 2010
Comparative Study Clinical TrialThe LMA CTrach™ in morbidly obese and lean patients undergoing gynecological procedures: a comparative study.
The tracheas of obese patients may be more difficult to intubate than those of normal-weight patients. The aim of this study was to compare the airway management quality in morbidly obese and lean patients with use of the LMA CTrach. ⋯ We concluded that the time to intubate the trachea in obese patients was significantly longer than in lean patients when the LMA CTrach was used.
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Journal of anesthesia · Dec 2010
Evaluation of performance of two high-frequency oscillatory ventilators using a model lung with a position sensor.
High-frequency oscillatory ventilation (HFOV) is thought to protect the lungs of acute respiratory distress syndrome (ARDS) patients. The performance and mechanical characteristics of high-frequency oscillatory ventilators, especially with regard to delivering appropriate tidal volume (V(T)) to compromised lungs, might affect the outcome of patients. We evaluated the performance of two such ventilators using a model lung with a position sensor. ⋯ Because it is able to deliver comparably greater V(T), R100 may be a better choice for HFOV in critical ARDS patients. Better proportionality may be a result of more effective amplitude titration for adjusting PaCO₂ during oscillation.