Journal of clinical anesthesia
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Randomized Controlled Trial Comparative Study Clinical Trial
Laryngo-pharyngeal complaints following laryngeal mask airway and endotracheal intubation.
To investigate the incidence and severity of laryngo-pharyngeal complaints following anesthesia with the use of a laryngeal mask airway (LMA) compared with endotracheal intubation in adults. ⋯ There is a distinct pattern of laryngo-pharyngeal complaints following the use of the LMA and endotracheal intubation. With regard to minor laryngo-pharyngeal morbidity, the advantage of the LMA to endotracheal intubation is questionable.
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Comparative Study Clinical Trial
Comparative recovery of 50-Hz and 100-Hz posttetanic twitch following profound neuromuscular block.
To determine if posttetanic twitch following 100-Hz tetanic stimulation enables titration of a nondepolarizing relaxant infusion to a greater depth of block than that achieved with posttetanic twitch following 50 Hz. ⋯ Posttetanic twitch following 100-Hz tetanic stimulation enables titration of a vecuronium infusion to a greater depth of block than posttetanic twitch following 50-Hz tetanic stimulation. The present findings should enable more effective titration of this relaxant, thereby reducing the likelihood of unwanted patient movement or unduly prolonged recovery due to relaxant overdosing.
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Randomized Controlled Trial Clinical Trial
Effect of propofol for induction and ondansetron with or without dexamethasone for the prevention of nausea and vomiting after major gynecologic surgery.
To test the hypothesis that for major gynecologic surgery the combination of propofol for induction, ondansetron, and dexamethasone would be a more effective antiemetic combination than propofol for induction, ondansetron, and saline; and to determine if a propofol induction of anesthesia improved our previously reported results when thiamylal was the induction drug. ⋯ The hypothesis that the addition of dexamethasone to the propofolondansetron combination would significantly reduce postoperative nausea and vomiting (PONV) was not confirmed. A propofol induction of anesthesia resulted in a comparable incidence of PONV when compared with our previously reported results using thiamylal for induction of anesthesia for women having major gynecologic operations.
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Clinical Trial
Heart rate, heart rate variability, and blood pressure during perioperative stressor events in abdominal surgery.
To define the behavior of power spectral heart rate variability (PSHR) during potentially stressful events in the perioperative period, and relate it to changes in blood pressure (BP) and heart rate (HR). ⋯ On anesthetic induction, preoperative, but not intraoperative, spectral indices were predictive of BP changes. Power spectral analysis of HR may provide information about the autonomic state that is not evident from BP or HR. The HR power spectrum, in particular, indicated a striking autonomic imbalance immediately after the induction of anesthesia despite stable HR and BP. LFA and LFA/RFA ratio appeared to track sympathetic autonomic activation during abdominal surgical stimulation, but not during other perioperative stressor events.
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Letter Case Reports
Post-dural puncture headache and epidural blood patch in an AIDS patient.