Neuroanaesthesia & neurocritical care
Intraoperative EEG power spectrum alterations in patients with malignant brain tumors
Authors' conclusion
The EEG patterns of patients with malignant brain tumors differed significantly from those of patients with benign tumors and non-neurological controls.
Study context
- Population
- Patients undergoing craniotomy for brain tumour removal and non-neurological surgery controls with intraoperative EEG
- Participants
- 21 / 20 / 32
- Exposure
- Malignant vs Benign vs Control
- Malignantn = 21
- Benignn = 20
- Controln = 32reference
- Outcome
- Incidence of visually identified burst suppression during induction and maintenance, and EEG power spectra at beginning and end of maintenance
Main finding
As reported in the abstract
- Burst suppression incidence during induction or maintenance not significantly higher in benign or malignant tumour patients vs non-neurological controls
- Significantly lower absolute and relative beta band-power in malignant tumour patients vs benign tumour and control patients
Observational data: associations, not effects.
Original publication
Intraoperative EEG power spectrum alterations in patients with malignant brain tumors. J Clin Anesth. Published 27 August 2026. doi:10.
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