Journal of clinical anesthesia
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Randomized Controlled Trial Clinical Trial
Changes in respiratory pattern and arterial blood gases during sedation with propofol or midazolam in spinal anesthesia.
To investigate changes in respiratory pattern and arterial blood gases during sedation with propofol or midazolam in spinal anesthesia. ⋯ Significant decreases in %RC and pO2 during propofol sedation seem to depend on paradoxical respiration due, in part, to upper airway obstruction; therefore, attention should be directed to the respiratory pattern during sedation, especially with propofol.
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Randomized Controlled Trial Comparative Study Clinical Trial
Effect of spinal versus general anesthesia on bladder compliance and intraabdominal pressure during transurethral procedures.
To evaluate the influence of spinal versus general anesthesia on bladder compliance and intraabdominal pressure in elderly males undergoing elective transurethral resection of the prostate. ⋯ Both spinal and general anesthesia induced a significant decrease in intraabdominal pressure. While both techniques were associated with an increase in bladder compliance, statistical significance was demonstrated only in the spinal anesthesia treatment group.
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Randomized Controlled Trial Clinical Trial
Effects of tramadol and meperidine on respiration, plasma catecholamine concentrations, and hemodynamics.
To evaluate the effects of high analgesic doses of tramadol and meperidine on respiration, plasma catecholamine concentrations, and hemodynamic parameters. ⋯ Tramadol exhibited a minimal effect on respiration and breathing pattern in healthy volunteers. The respiratory effects of meperidine bolus were predictable with decreasing tidal volume and pulse oxygen saturation. In contrast, during meperidine infusion, adequate respiration was preserved despite the large amount of meperidine infused.
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Randomized Controlled Trial Comparative Study Clinical Trial
The optimal effective concentration of lidocaine to reduce pain on injection of propofol.
To determine the optimal concentration of lidocaine that reduces pain on injection of a propofol-lidocaine mixture. ⋯ The optimal effective concentration of lidocaine, which decreased the incidence of pain caused by propofol injection, was 0.1% in the currently studied population.