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[Continuous localized EEG discharges during sleep in children]
A Pelliccia1, F Galletti, R Pierantoni
1Cattedra di Neuropsichiatria Infantile dell' Università La Sapienza di Roma, Italie.
Summary
Researchers identified a new electroencephalographic (EEG) pattern in children with severe motor and intellectual disabilities. This pattern, characterized by continuous spike-wave discharges during non-rapid eye movement sleep, correlated with brain abnormalities and cognitive impairment.
Area of Science:
- Neurology
- Neurophysiology
- Pediatrics
Context:
- Continuous generalized spike-and-wave complexes during slow-wave sleep were previously reported.
- A new clinical-EEG picture has been observed in children with severe disabilities.
Purpose:
- To describe a novel electroencephalographic (EEG) pattern in children with quadriplegia and hemiplegia.
- To investigate the association between this EEG pattern, brain abnormalities, and cognitive function.
Summary:
- Spike and spike-and-wave complexes localized to one hemisphere were recorded in 6 neurologically impaired children (3 quadriplegic, 3 hemiplegic) during over 85% of non-REM sleep.
- Brain CT revealed midline defects and atrophy in quadriplegic cases, and porencephalic cysts in hemiplegic cases.
- This EEG pattern was linked to more severe mental impairment, with improvement noted when discharges ceased.
Impact:
- Identifies a specific EEG pattern associated with significant neurological deficits in children.
- Suggests a correlation between continuous sleep EEG abnormalities and the severity of cognitive impairment.
- Highlights the potential for monitoring neurological status and treatment response through sleep EEG.