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Progressive intellectual impairment in children with Encephalopathy related to Status Epilepticus during slow Sleep

Liam Dorris1, Mary O'Regan2, Margaret Wilson2

  • 1Paediatric Neurosciences Research Group, Royal Hospital for Children, Glasgow, UK, Institute of Health and Wellbeing, University of Glasgow, Member of the European Reference Network EpiCARE, Glasgow, UK.

Epileptic Disorders : International Epilepsy Journal with Videotape
|June 11, 2019
PubMed

Insights

Encephalopathy related to Status Epilepticus during slow Sleep (ESES) in children is linked to a significant decline in intellectual functioning over time. Approximately one-third experienced clinically significant IQ regression, impacting cognitive efficiency.

Area of Science:

  • Pediatric Neurology
  • Sleep Medicine
  • Neuropsychology

Background:

  • Encephalopathy related to Status Epilepticus during slow Sleep (ESES) is a recognized condition in childhood.
  • The long-term impact of ESES on intellectual development remains an area of concern.

Purpose of the Study:

  • To investigate the association between ESES in childhood and progressive intellectual decline.
  • To identify factors influencing intellectual regression in children with ESES.

Main Methods:

  • Retrospective review of 2200 overnight sleep EEG reports over five years.
  • Neuropsychological assessments (WISC-III/WPPSI-R) in 22 identified children with ESES.
  • Analysis of IQ changes over a mean interval of two years.

Main Results:

  • Statistically significant reductions in Full-Scale IQ and Performance IQ were observed.
  • Approximately 33% of participants showed a clinically significant IQ decline (>=12 points).
  • No distinguishing clinical, imaging, or duration factors were found for those with significant regression.

Conclusions:

  • Childhood ESES is associated with progressive intellectual decline, affecting cognitive efficiency.
  • Children with ESES require ongoing monitoring for educational support and prognostic guidance.
  • Early identification and intervention are crucial for managing cognitive deficits in ESES.

Keywords:
CSWSESESchildhood epilepsyintellectual decline

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