Cns Drugs
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Randomized Controlled Trial Comparative Study
Spectral frequency index monitoring during propofol-remifentanil and propofol-alfentanil total intravenous anaesthesia.
The aim of this study was to evaluate the usefulness of spectral frequency index (SFx) monitoring to assess the depth of anaesthesia during propofol-opioid total intravenous anaesthesia (TIVA). ⋯ As SFx is linearly related to plasma propofol concentration, this index may be used to measure anaesthetic effect during propofol anaesthesia. The results of this clinical trial are consistent with a previous computer-simulated opioid-propofol model with regard to intraoperative and recovery variables, although the recovery occurred at different propofol concentration and SFx values.