Journal of anesthesia
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Journal of anesthesia · Dec 1997
Effects of hemoglobin concentration and temperature on the in vitro release of cyanide from sodium nitroprusside.
This in vitro study was performed to determine whether changes in hemoglobin (Hb) concentration and temperature influenced the amount of cyanide (CN-) released from sodium nitroprusside (SNP). ⋯ Though the Hb concentration and temperature changed the amount of CN- released from SNP in RBC, the change observed was not clinically significant.
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Journal of anesthesia · Dec 1997
Target controlled priming for rapid onset of intubation dose: A new approach.
To determine the pattern of onset of the intubating dose when given at a monitored target priming block in either phase of the priming drug effect. ⋯ In conclusion, target controlled priming (DBSr) for administration of the intubating dose appears to be a useful double-vision sign to predict the onset of the effect of the intubating dose precisely.
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Journal of anesthesia · Dec 1997
Titration of propofol infusion using processed electroencephalogram during combined general and spinal anesthesia.
To determine the necessary mean infusion rate of propofol during combined nitrous oxide (N2O) and propofol spinal anesthesia by using the processed electroencephalogram (pEEG). ⋯ Titration of propofol infusion using SEF during combined general and spinal anesthesia provided a rapid recovery without any clinical signs of inadequate anesthesia.
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Journal of anesthesia · Dec 1997
Effect of fentanyl on heart rate variability during mechanical ventilation.
This study was performed to investigate the effect of fentanyl alone on heart rate variability (HRV) during mechanical ventilation using power spectral analysis. Arterial baroreceptor reflex was also tested with pharmacological manipulation to assess the contribution of vagal baroreceptor reflex modulation of HRV during fentanyl anesthesia. ⋯ Our data indicate that fentanyl modulates the respiratory frequency fluctuation of HRV. This is partly caused by the effects of fentanyl on arterial baroreflex sensitivity.