Journal of anesthesia
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Journal of anesthesia · Jan 2009
Randomized Controlled TrialThe impact of two arterial catheters, different in diameter and length, on postcannulation radial artery diameter, blood flow, and occlusion in atherosclerotic patients.
Arterial cannulation is a common intervention in anesthesia practice. However, the success rates and complications of radial arterial cannulation with 20-G or smaller catheters in patients with atherosclerosis have been underevaluated. The aim of this prospective randomized study was to compare the efficacy of and complications with 20- and 22-G catheters for radial arterial cannulation in atherosclerotic patients. ⋯ A 22-gauge catheter for radial arterial cannulation in patients with atherosclerosis provides unchanged postcannulated radial artery diameter, decreases postcannulation complications, and improves the first-attempt success rate.
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Journal of anesthesia · Jan 2009
Randomized Controlled TrialPremedication with dexmedetomidine and midazolam attenuates agitation after electroconvulsive therapy.
This study was designed to compare the effects of premedication with dexmedetomidine and midazolam on post-electroconvulsive therapy (ECT) agitation (which patients had experienced previously and had been resistant to treatment). In addition, we aimed to evaluate the duration of convulsion, the propofol requirement, the recovery time, and patients' satisfaction during and after ECT. ⋯ Premedication with low-dose intravenous dexmedetomidine, 0.5 microg x kg(-1) or midazolam, 0.025 mg x kg(-1) before ECT may be useful in managing treatment-resistant agitation after ECT, without adverse effects.
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Journal of anesthesia · Jan 2009
Randomized Controlled TrialEffects of intravenous adenosine 5'-triphosphate on intraoperative hemodynamics and postoperative pain in patients undergoing major orofacial surgery: a double-blind placebo-controlled study.
We conducted a double-blind placebo-controlled study to investigate the effects of the intraoperative intravenous infusion of adenosine 5'-triphosphate (ATP) on intraoperative hemodynamics and postoperative pain in patients undergoing major orofacial surgery. ⋯ Our data suggest that intraoperative ATP infusion can blunt hemodynamic responses to surgical stimuli and produce prolonged analgesia in patients undergoing major orofacial surgery.
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Journal of anesthesia · Jan 2009
Randomized Controlled TrialPriming with rocuronium or vecuronium prevents remifentanil-mediated muscle rigidity and difficult ventilation.
The aim of this study was to test our hypothesis that priming with rocuronium would prevent muscle rigidity and difficult ventilation due to remifentanil administration. ⋯ The present study showed that priming with rocuronium or vecuronium reduced the incidence of difficult ventilation by avoiding the muscle rigidity caused by remifentanil.
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Journal of anesthesia · Jan 2009
Randomized Controlled Trial Comparative StudyIsoflurane and sevoflurane decrease entropy indices more than halothane at equal MAC values.
Recently, bispectral index (BIS) values were demonstrated to be different for various anesthetics as a result of differential effects on electroencephalographic (EEG) signals. Entropy is similar to the BIS monitor, as both process raw EEG to derive a number. We hypothesized that entropy may also be anesthetic agent-specific. ⋯ During the study period, for a given MAC value, both RE and SE remained low in the isoflurane and sevoflurane groups compared to the halothane group. For a given MAC, the RE and SE were comparable during wash-in and wash-out phases. Halothane produced higher entropy values as compared to isoflurane and sevoflurane at equivalent MAC levels.