Electroencephalography Applications in Epilepsy Management

Electroencephalography (EEG) is a cornerstone of epilepsy management, providing real-time measurement of cortical electrical activity for diagnosis, monitoring and treatment guidance. In routine practice, conventional EEG employs a full montage of 19–21 electrodes placed according to standardised systems, enabling detection of interictal epileptiform discharges and ictal patterns. Recent technological innovations have broadened its applications beyond the neurology ward and specialised laboratories. Portable and point-of-care EEG devices now permit rapid assessment in emergency departments, community hospitals and prehospital settings, reducing time to diagnosis and patient transfers. Reduced-lead montages and wireless headsets have been shown to preserve diagnostic accuracy while lowering set-up time and resource requirements. Automated algorithms and machine-learning methods are also being integrated to provide real-time seizure burden analysis and bedside alerts for status epilepticus, streamlining clinical workflows and facilitating timely intervention. Continuous EEG monitoring in intensive care units and remote home-monitoring approaches further extend the reach of EEG, offering longitudinal seizure surveillance and therapeutic evaluation in ambulatory patients. Collectively, these advances underscore the global significance of EEG as an adaptable tool for improving outcomes in people with epilepsy.

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Electroencephalography Applications in Epilepsy Management publication trend

The graph below shows the total number of articles in electroencephalography applications in epilepsy management across all publications each year (not limited to Nature Index journals).

Technical terms

Electroencephalography (EEG): A non-invasive technique for recording electrical potentials generated by neuronal populations using scalp electrodes.

Nonconvulsive status epilepticus (NCSE): A prolonged seizure state characterised by altered consciousness without overt motor convulsions, diagnosed primarily through EEG patterns.

Point-of-care EEG (pocEEG): A portable, rapid-setup EEG system designed for bedside or field use, often with reduced electrode montages.

Electrode montage: The spatial arrangement of electrodes on the scalp; full montages use 19–21 channels, while reduced montages use fewer electrodes for faster application.

Artefact: Extraneous signals in EEG recordings arising from muscle activity, movement or equipment interference, which can obscure cerebral activity.

References

1. Implementation and impact of a point of care electroencephalography platform in a community hospital: a cohort study. Frontiers in Digital Health (2023).
2. Electroencephalography Quality and Application Times in a Pediatric Emergency Department Setting: A Feasibility Study. Pediatric Neurology (2023).
3. Point-of-care EEG in the pediatric emergency department: a systematic review. European Journal of Pediatrics (2025).
4. Novel wireless electroencephalography system with a minimal preparation time for use in emergencies and prehospital care. BioMedical Engineering OnLine (2014).
5. Monitoring the Burden of Seizures and Highly Epileptiform Patterns in Critical Care with a Novel Machine Learning Method. Neurocritical Care (2020).
6. Continuous EEG monitoring by a new simplified wireless headset in intensive care unit. BMC Anesthesiology (2020).
7. Diagnostic and therapeutic yield of a patient-controlled portable EEG device with dry electrodes for home-monitoring neurological outpatients—rationale and protocol of the HOMEONE pilot study. Pilot and Feasibility Studies (2018).