Under-sampling in epilepsy: Limitations of conventional EEG
Maxime O Baud1,2, Kaspar Schindler1, Vikram R Rao3
1Sleep Wake Epilepsy Center, NeuroTec and Center for Experimental Neurology, Department of Neurology, Inselspital Bern, University Hospital, University of Bern, Switzerland.
Clinical Neurophysiology Practice
|February 3, 2021
Summary
Chronic intracranial electroencephalography (EEG) reveals epilepsy
Area of Science:
- Neurology
- Neuroscience
- Biomedical Engineering
Background:
- Epilepsy's cyclical structure, recently rediscovered, is informed by long-term intracranial EEG.
- Conventional EEG interpretation faces challenges due to the limitations of short-duration recordings.
Purpose of the Study:
- To review how chronic EEG findings impact conventional EEG practices.
- To advocate for an electrographic definition of seizures and address limitations in current diagnostic methods.
Main Methods:
- Review of recent studies utilizing chronic intracranial EEG.
- Analysis of the implications of chronic EEG data for epilepsy diagnosis and management.
Main Results:
- Chronic EEG provides new insights into the cyclical nature of epilepsy.
- Short-duration EEG recordings have limitations in accurately assessing seizure frequency and disease state.
Conclusions:
- Chronic brain activity monitoring offers potential to significantly enhance epilepsy care.
- Next-generation devices for chronic EEG are poised to shift epilepsy paradigms through biomarker utilization.
