Anesthetic drugs & techniques

Intraoperative Electroencephalography Alpha-Band Power Is a Better Proxy for Preoperative Low Montreal Cognitive Assessment (MoCA) Under Propofol Compared With Sevoflurane

Anesth AnalgPublished Prospective observational study

Authors' conclusion

We suggest that intraoperative EEG biomarkers of abnormal cognition differ between propofol and sevoflurane under general anesthesia.

Study context

Population
Patients under GA with intraoperative EEG monitoring and preoperative MoCA assessment 1 day before intervention
Participants
106 participants
Exposure
Propofol vs Sevoflurane
  • Propofoln = 55
  • Sevofluranen = 51reference
Outcome
Difference in α-BP between low and normal MoCA patients
Methodological detailsmonocentric, adjusted for age and drug dosage, depth of anesthesia (DoA) assessed by SEF95, maintained within (8-13) Hz
  • Monocentric
  • Adjusted for age and drug dosage
  • DoA assessed by SEF95, maintained within (8-13) Hz

Main finding

As reported in the abstract

P = 0.022

Observational data: associations, not effects.

Further findings

OutcomeOR (CI)P value
Low α-BP and low MoCA, propofol (adjusted for age and dose)Not significant under sevoflurane0.39 (0.16–0.94)P = 0.034

Theta-band power and low MoCA, sevoflurane (adjusted for age and dose)

OR (CI)P value
Sevoflurane0.31 (0.13–0.73)P = 0.007

SEF95 and age

Not statistically different between sevoflurane and propofol groups

Original publication

Intraoperative Electroencephalography Alpha-Band Power Is a Better Proxy for Preoperative Low MoCA Under Propofol Compared With Sevoflurane. Anesth Analg. Published 4 April 2023. doi:10.1213/ane.0000000000006422

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