Does titration of anaesthesia using population-derived EEG indices overdose older patients?

Sleigh, Jamie W · Br J Anaesth · 2025

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Abstract

Compared with the young, the older patient group has increased high-frequency EEG power whilst under volatile general anaesthesia. This increased high-frequency power elevates the spectral entropy values above the recommended range. Thus, aggressive titration of general anaesthesia with volatile agents to achieve entropy values of 40-60 in older patients will commonly result in overdose, as manifest by burst suppression.

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