Journal of clinical anesthesia
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Randomized Controlled Trial Clinical Trial
Flow increases with an enlarging intravenous catheter.
To determine the increase in flow of a hydratable enlarging intravenous (IV) catheter in anesthetized patients. ⋯ Flow through enlarging IV catheters placed in anesthetized patients increases after 1 hour. The percentage increase in flow is not as great as previously seen in vitro and may be due to skin, vein, and subcutaneous tissues preventing complete expansion.
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Randomized Controlled Trial Clinical Trial
Facilitation of rapid-sequence intubation with large-dose vecuronium with or without priming.
To determine the effect of priming on the intubation and onset times of vecuronium 0.3 mg/kg. ⋯ Seventy-five percent to 85% neuromuscular block of the adductor pollicis, required for atraumatic tracheal intubation, developed in 80 seconds or less when vecuronium 0.3 mg/kg was administered in divided doses and in 140 seconds or less when it was injected as a single bolus dose. Clinical duration of vecuronium 0.3 mg/kg is long and unpredictable, and reversal of residual neuromuscular block may require larger doses of anticholinesterases. It is recommended that an intubating dose of vecuronium 0.3 mg/kg be used only in patients undergoing long surgical procedures that require prolonged postanesthetic mechanical ventilation.
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Randomized Controlled Trial Comparative Study Clinical Trial
Comparative effects of desflurane and isoflurane on vecuronium-induced neuromuscular blockade.
To evaluate the neuromuscular effects of a nondepolarizing muscle relaxant (vecuronium) during anesthesia with equipotent concentrations of either desflurane or isoflurane. ⋯ Vecuronium has similar neuromuscular effects when administered in the presence of desflurane 3% and isoflurane 0.6%.
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Randomized Controlled Trial Comparative Study Clinical Trial
Do heated humidifiers and heat and moisture exchangers prevent temperature drop during lower abdominal surgery?
To compare the effects of using a heated humidifier (HH), a heat and moisture exchanger (HME), or no warming device in maintaining body temperature during surgical procedures of 1 to 4 hours' duration. ⋯ Results indicate that these warming devices provide little benefit in preventing a temperature drop during procedures of 1 to 4 hours' duration, although patients with an HH tended to have a higher temperature than those with an HME or no device.
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Randomized Controlled Trial Clinical Trial
The effect of an intermediate dose of labetalol on heart rate and blood pressure responses to laryngoscopy and intubation.
To evaluate the efficacy of an intermediate dose of labetalol (0.4 mg/kg) for attenuation of heart rate (HR) and blood pressure (BP) responses to laryngoscopy and intubation. ⋯ An intermediate dose of labetalol blunted the HR response to laryngoscopy and intubation during rapid-sequence induction in healthy patients but had a minimal effect on BP.