Electroencephalogram-based prediction and detection of responsiveness to noxious stimulation in critical care patients: a retrospective single-centre analysis
Authors' conclusion
We observed correlates in EEG band power that precede and coincide with behavioural responses to noxious stimulation.
Study context
- Population
- Tracheally intubated and ventilated critical care patients undergoing tracheal suctioning
- Participants
- 64 participants
- Exposure
- Strong vs weaker behavioural responses (BPS ≥7) to tracheal suctioning: EEG band power
- Outcome
- Frontal EEG power band correlates preceding or coinciding with behavioural responses (Behavioural Pain Scale ≥7)
Methodological detailssingle-centre
- Single-centre
Main finding
As reported in the abstract
EEG normalised band power
Before strong behavioural responses: higher normalised power, 2.5-5 Hz band (P<0.001)
+17.1%
Before strong behavioural responses: lower normalised power, 0.1-1.5 Hz band (P=0.029)
−10.5%
After intervention, with strong behavioural responses: higher normalised power, 2.5-5 Hz band (P=0.021)
+16.6%
After intervention, with strong behavioural responses: lower normalised power, 8-12 Hz band (P=0.037)
−51.2%
Observational data: associations, not effects.
Original publication
Electroencephalogram-based prediction and detection of responsiveness to noxious stimulation in critical care patients: a retrospective single-centre analysis. Br J Anaesth. Published 19 November 2022. doi:10.
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