Journal of clinical anesthesia
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Randomized Controlled Trial Clinical Trial
Comparative effects of oral clonidine and intravenous esmolol in attenuating the hemodynamic response to epinephrine injection.
To evaluate oral clonidine and intravenous esmolol in blunting hemodynamic changes associated with intranasal injection of an epinephrine-containing local anesthetic solution during general anesthesia. ⋯ In this healthy, young, nonsmoking outpatient population, premedication with oral clonidine, 0.2 to 0.4 mg, was effective in blunting the acute hemodynamic changes associated with injection of an epinephrine-containing local anesthetic solution during endoscopic sinus or septoplasty surgery.
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Clinical Trial Controlled Clinical Trial
Advanced pulse oximeter signal processing technology compared to simple averaging. I. Effect on frequency of alarms in the operating room.
To determine the effect of a new signal processing technique (Oxismart, Nellcor, Inc., Pleasanton, CA) on the incidence of false pulse oximeter alarms in the operating room (OR). ⋯ Our study did not show a beneficial effect in the OR on the incidence of false alarms of the Nellcor monitor with Oxismart signal processing compared with the Criticare monitor with the longer averaging time of 21 seconds.
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Clinical Trial Controlled Clinical Trial
Advanced pulse oximeter signal processing technology compared to simple averaging. II. Effect on frequency of alarms in the postanesthesia care unit.
To determine the effect of a new pulse oximeter (Nellcor Symphony N-3000, Pleasanton, CA) with signal processing technique (Oxismart) on the incidence of false alarms in the postanesthesia care unit (PACU). ⋯ To date, this is the first report of a pulse oximeter that produced almost no false alarms in the PACU.
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Randomized Controlled Trial Clinical Trial
Lightwand intubation does not reduce the increase in intraocular pressure associated with tracheal intubation.
To evaluate the changes in hemodynamic variables and intraocular pressure (IOP) after tracheal intubation using either lightwand or direct-vision laryngoscopy techniques. ⋯ We conclude that in healthy patients without ocular disease, using a lightwand intubating technique does not reduce the hemodynamic responses and increase in IOP associated with tracheal intubation as compared with conventional direct-vision laryngoscopy.
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To obtain information about practitioners' behaviors, perceptions, and perspectives concerning issues related to advancing age and anesthetic practice. ⋯ Despite modest age-associated trends, chronological age per se is not a strong correlate of an individual's practice pattern, behaviors, or perceptions about performance.