Journal of clinical anesthesia
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Randomized Controlled Trial Clinical Trial
Propofol at conscious sedation doses produces mild analgesia to cold pressor-induced pain in healthy volunteers.
To determine whether subanesthetic doses of propofol have analgesic effects in healthy volunteers. ⋯ Our laboratory results are consistent with the commonly accepted clinical practice of supplementing propofol with an opioid in conscious sedation procedures to provide a satisfactory level of pain relief.
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Randomized Controlled Trial Comparative Study Clinical Trial
Effects of intravenous lidocaine and/or esmolol on hemodynamic responses to laryngoscopy and intubation: a double-blind, controlled clinical trial.
To evaluate the efficacy of intravenous lidocaine and two doses of esmolol for attenuating the cardiovascular responses to laryngoscopy and intubation, and to assess whether a combination of both drugs is more effective than either drug alone. ⋯ Esmolol 1 to 2 mg/kg is reliably effective in attenuating HR response to tracheal intubation. Neither of the two doses of esmolol tested nor that of lidocaine affected the BP response. Only the combination of lidocaine and esmolol attenuated both HR and BP responses to tracheal intubation.
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Randomized Controlled Trial Comparative Study Clinical Trial
Hemodynamic effects of intrathecal sufentanil compared with epidural bupivacaine in laboring parturients.
To provide information on the central hemodynamic effects of intrathecal sufentanil after a standard intravenous preload using thoracic bioimpedance monitoring to obtain noninvasive measurements of cardiac index (CI), stroke index (SI), and systemic vascular resistance (SVR). To compare hemodynamic parameters after intrathecal sufentanil labor analgesia to those after a standard dose of epidural bupivacaine in laboring parturients. ⋯ No significant differences in CI, SI, or SVR index were seen after either method of analgesia. A few patients in both groups experienced hypotension requiring treatment with ephedrine. Both techniques of labor analgesia appear to provide effective pain relief but care must be taken with either method to monitor maternal BP.
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Randomized Controlled Trial Clinical Trial
The minimum alveolar concentration (MAC) of sevoflurane with and without nitrous oxide in elderly versus young adults.
To determine the minimum alveolar concentration (MAC) of sevoflurane with and without 65% nitrous oxide (N2O) in non-Asian patients at least 70 years of age, and in patients aged 18 to 35 years. ⋯ The MAC of sevoflurane determined in this study is similar to that determined in previous studies, including the MAC determined in an elderly Asian population. Increasing age and N2O decrease sevoflurane MAC similarly to that determined with other volatile anesthetics.
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Randomized Controlled Trial Comparative Study Clinical Trial
Rocuronium priming of atracurium-induced neuromuscular blockade: the use of short priming intervals.
To evaluate the effects of priming doses of rocuronium on the duration of priming interval and on the outcome of priming sequence using rocuronium-atracurium combination. ⋯ Priming doses of recuroniums 0.1 mg/kg reduce the priming interval to 1 minute, allow early induction of anesthesia, eliminate patient discomfort, and accelerate the onset time of altracurium with intubating conditions comparable with succinylcholine and rocuronium.