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Phase lag entropy as a hypnotic depth indicator during propofol sedation

Ki et al.
Used Parameters : PLE

Publication Year : 2019

Country : Korea

Journal : Anaesthesia

Phase lag entropy, an electro‐encephalography‐based hypnotic depth indicator, calculates diversity in temporal patterns of phase relationship. We compared the performance of phase lag entropy with the bispectral index™ in 30 patients scheduled for elective surgery. We initiated a target‐controlled infusion of propofol using the Schnider model, and assessed sedation levels using the Modified Observer's Assessment of Alertness/Sedation scale every 30 s with each stepwise increase in the effect‐site propofol concentration. Phase lag entropy …
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