Minerva anestesiologica
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Minerva anestesiologica · Jul 2021
Randomized Controlled TrialUpdate on the SedLine algorithm for calculating the Patient State index of older individuals during general anesthesia: a randomized controlled trial.
The SedLine® sensor processes (Masimo Corporation; Irvine, CA, USA) raw electroencephalogram (EEG) signals and displays the depth of sedation as a Patient State Index (PSi). Reliance on standard processed EEG data and failure to recognize age-related effects can lead to an erroneous interpretation that low-amplitude EEG findings in an older patient signify an insufficient depth of anesthesia presented as abnormally high PSi values (AHPSi). We hypothesized that the incidence of AHPSi would decrease with the use of the recently-updated version of the SedLine® sensor, in which the Bispectral Index (BIS) values were used to titrate anesthesia. ⋯ The incidence of AHPSi decreased with the use of the updated version of the SedLine® algorithm.