Journal of clinical monitoring
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Randomized Controlled Trial Clinical Trial
Effects of intravenous anesthetic agents on middle cerebral artery blood flow velocity during induction of general anesthesia.
Our objective was to quantify the effects of intravenous anesthetics on values measured by or derived from transcranial Doppler sonography (TCD) during induction of general anesthesia. ⋯ Under the circumstances of our study, values derived from TCD measurements responded differently to the agents used to induce general anesthesia in nonneurosurgical patients.
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Randomized Controlled Trial Clinical Trial
EEG bispectrum predicts movement during thiopental/isoflurane anesthesia.
The objective of our study was to test the efficacy of the bispectral index (BIS) compared with spectral edge frequency (SEF), relative delta power, median frequency, and a combined univariate power spectral derivative in predicting movement to incision during isoflurane/oxygen anesthesia. ⋯ When bispectral analysis of the EEG was used to develop a retrospectively determined index, there was an association of the index with movement. Thus, it may be a useful predictor of whether patients will move in response to skin incision during anesthesia with isoflurane/oxygen.