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Updated: Apr 17, 2026
Cortical Source Analysis of High-Density EEG Recordings in Children
Published on: June 30, 2014
Long-term EEG in children
A Montavont1, A Kaminska2, C Soufflet2
1Service épilepsie, sommeil et explorations fonctionnelles neuropédiatriques, hôpital Femme-Mère-Enfant, 59, boulevard Pinel, 69677 Lyon, France; Service de neurologie fonctionnelle et d'épileptologie, hôpital Neurologique P.-Wertheimer, 59, boulevard Pinel, 69677 Lyon, France.
Insights
Long-term video-electroencephalography (video-EEG) aids in diagnosing epilepsy and evaluating drug-resistant cases. Pediatric video-EEG requires specific adaptations for children, ensuring accurate diagnosis and pre-surgical planning.
Area of Science:
- Neurology
- Clinical Neurophysiology
Background:
- Long-term video-electroencephalography (video-EEG) is crucial for diagnosing epilepsy and clarifying uncertain paroxysmal symptoms.
- It is indicated for epilepsy diagnosis, pre-surgical evaluation of drug-resistant epilepsy, and patient follow-up.
Purpose of the Study:
- To outline the indications and specific considerations for long-term video-EEG, particularly in pediatric cases.
- To detail the essential components of polygraphy and age-specific adaptations for effective monitoring.
Main Methods:
- Continuous video and EEG recording, ranging from 1 to 24 hours or longer.
- Inclusion of electrocardiography (ECG), respiratory sensors, and bilateral deltoid electromyography (EMG).
- Adaptation of electrode placement and monitoring duration based on seizure frequency and patient age.
Main Results:
- Long-term video-EEG is applicable across all age groups, including newborns and infants, with necessary scalp monitoring.
- Pediatric video-EEG necessitates a dedicated unit, parental/caregiver presence, and age-adjusted electrode configurations.
- Effective pre-surgical evaluation requires recording all seizure types to correlate with electroclinical data for seizure onset zone localization.
Conclusions:
- Long-term video-EEG is a versatile diagnostic tool with critical applications in epilepsy management and pre-surgical planning.
- Specific pediatric adaptations ensure the safety and efficacy of video-EEG monitoring in children.
- Accurate electroclinical correlation derived from comprehensive video-EEG is vital for successful epilepsy surgery outcomes.
Abstract:
Long-term video-EEG corresponds to a recording ranging from 1 to 24 h or even longer. It is indicated in the following situations: diagnosis of epileptic syndromes or unclassified epilepsy, pre-surgical evaluation for drug-resistant epilepsy, follow-up of epilepsy or in cases of paroxysmal symptoms whose etiology remains uncertain. There are some specificities related to paediatric care: a dedicated pediatric unit; continuous monitoring covering at least a full 24-hour period, especially in the context of pre-surgical evaluation; the requirement of presence by the parents, technician or nurse; and stronger attachment of electrodes (cup electrodes), the number of which is adapted to the age of the child. The chosen duration of the monitoring also depends on the frequency of seizures or paroxysmal events. The polygraphy must be adapted to the type and topography of movements. It is essential to have at least an electrocardiography (ECG) channel, respiratory sensor and electromyography (EMG) on both deltoids. There is no age limit for performing long-term video-EEG even in newborns and infants; nevertheless because of scalp fragility, strict surveillance of the baby's skin condition is required. In the specific context of pre-surgical evaluation, long-term video-EEG must record all types of seizures observed in the child. This monitoring is essential in order to develop hypotheses regarding the seizure onset zone, based on electroclinical correlations, which should be adapted to the child's age and the psychomotor development.
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