Journal of clinical anesthesia
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Randomized Controlled Trial Comparative Study Clinical Trial
The effect of cisatracurium and rocuronium on cisatracurium precurarization and the priming principle.
To demonstrate the effect of administering a precurarizing dose of cisatracurium or rocuronium on the speed of onset of cisatracurium, and to review the possible mechanisms and value of the priming principle. ⋯ Six minutes after precurarization, there is no significant difference between rocuronium and cisatracurium when used as priming drugs. An even faster onset time with both drugs was demonstrated in females. The use of priming doses of 25% to 30% of ED(95) may cause symptomatic muscle weakness. The mechanisms of the priming principle are discussed.
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Percutaneous dilatational tracheostomy (PDT) is a widely used and accepted method of long-term ventilation of critically ill patients in many intensive care units. However, it has certain contraindications that must be taken into account; for example, difficult anatomy and short, bull neck that are so often seen in morbidly obese persons. We present a case of a morbidly obese female patient in whom ultrasound-guided PDT was performed and in whom the airway was controlled by Laryngeal Mask Airway (LMA) during the procedure. Possible advantages of an ultrasonography-guided method and LMA control in morbidly obese patients also are discussed.
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Randomized Controlled Trial Clinical Trial
Effect of single-dose fentanyl on the cardiorespiratory system in elderly patients undergoing cataract surgery.
To evaluate the effects of fentanyl on the cardiorespiratory system in elderly patients undergoing cataract surgery with phacoemulsification method. ⋯ Fentanyl can be used safely in 0.7-microg/kg dosages in elderly patients to improve patient comfort without any cardiorespiratory side effects, when undergoing cataract surgery with topical anesthesia.
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Case Reports
Dexmedetomidine infusion for sedation during fiberoptic intubation: a report of three cases.
We report three patients undergoing cervical spine surgery who required awake fiberoptic intubation, and in whom sedation was provided using a dexmedetomidine infusion. Dexmedetomidine was used to provide a moderate level of sedation without causing respiratory distress or hemodynamic instability during fiberoptic intubation. ⋯ Dexmedetomidine may serve as a useful adjunct for this procedure. The anesthetic management and anesthetic implications of using dexmedetomidine infusions for awake fiberoptic intubation are discussed.