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Epilepsy with eyelid myoclonia beyond the classical phenotype: Longitudinal electroclinical observations in a

Hande Aygün1, Alper Taşkın1, Özlem Yayıcı Köken1

  • 1Division of Pediatric Neurology, Department of Pediatrics, Akdeniz University Faculty of Medicine, Antalya, Turkey.

Epileptic Disorders : International Epilepsy Journal with Videotape
|August 24, 2026
PubMed

Insights

Childhood epilepsy with eyelid myoclonia often presents with incomplete features, requiring repeated assessments for accurate diagnosis. This epilepsy syndrome shows varied clinical and EEG expression, with some patients responding well to lamotrigine.

Area of Science:

  • Neurology
  • Pediatric Epilepsy Syndromes

Background:

  • Epilepsy with eyelid myoclonia is a childhood-onset generalized epilepsy syndrome.
  • Recognition of eyelid myoclonia, eye-closure sensitivity, and photosensitivity can be variable.
  • Delayed diagnosis and understanding of its electroclinical evolution are significant challenges.

Purpose of the Study:

  • To characterize the longitudinal clinical and electroencephalographic (EEG) features of pediatric epilepsy with eyelid myoclonia.
  • To investigate delayed recognition, EEG variability, electroclinical evolution, and treatment outcomes.

Main Methods:

  • Retrospective review of 27 children with epilepsy with eyelid myoclonia.
  • Analysis of clinical characteristics, seizure evolution, serial EEG findings, neuroimaging, and antiseizure medication responses.
  • Descriptive summarization of longitudinal electroclinical trajectories.

Main Results:

  • Eyelid myoclonia was recognized at presentation in 14 patients and during follow-up in 13.
  • The complete classical electroclinical phenotype was present at onset in only 4 patients.
  • Persistent epileptiform abnormalities were noted in seizure-free patients, indicating heterogeneity.

Conclusions:

  • Classical features of epilepsy with eyelid myoclonia may be incomplete at onset and eyelid myoclonia can be initially missed.
  • Repeated clinical and EEG assessments are crucial for diagnosis, even without photosensitivity.
  • While lamotrigine showed favorable outcomes, the retrospective design limits comparative efficacy conclusions.
Abstract

Keywords:
Jeavons syndromechildhood epilepsyelectroclinical variabilityepilepsy with eyelid myocloniaeyelid myocloniaphotosensitivity

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