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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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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Randomized Controlled Trial Multicenter Study Clinical Trial
Etomidate and thiopental-based anesthetic induction: comparisons between different titrated levels of electrophysiologic cortical depression and response to laryngoscopy.
To determine whether etomidate-based induction can provide better hemodynamics than a standard thiopental sodium-based anesthetic induction. ⋯ Etomidate-based anesthetic induction, titrated to EEG burst suppression, produced stable hemodynamics during laryngoscopy and intubation as compared with lower dose, more "classic" inductions with etomidate or thiopental.
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Randomized Controlled Trial Comparative Study Clinical Trial
Removal of the laryngeal mask airway in children: deep anesthesia versus awake.
To compare the incidence of adverse airway events identified with removal of the laryngeal mask airway (LMA) from an awake child or from a child before his or her airway reflexes had returned. ⋯ Removal of the LMA during anesthesia and after return of airway reflexes results in a similar incidence of airway problems in children.
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Randomized Controlled Trial Comparative Study Clinical Trial
Postoperative analgesia using a low-dose, oral-transdermal clonidine combination: lack of clinical efficacy.
To determine if a lower than previously reported oral-transdermal clonidine regimen could reduce postoperative morphine requirements without producing systemic side effects. ⋯ The low-dose oral-transdermal clonidine regimen evaluated failed to reduce postoperative morphine requirements, although patients who received clonidine were still at risk for developing hypotension.