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Narcolepsy in prepubertal children

C Guilleminault1, R Pelayo

  • 1Stanford Sleep Disorder Clinic, Stanford University Medical Center, CA 94305, USA.

Annals of Neurology
|February 5, 1998
PubMed
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Pediatric narcolepsy diagnosis is often delayed, with symptoms like cataplexy, sleep paralysis, and hallucinations. Early consideration of narcolepsy is crucial for children with behavioral and depressive symptoms.

Area of Science:

  • Neurology
  • Pediatric Sleep Medicine

Background:

  • Narcolepsy is a chronic neurological disorder affecting sleep-wake regulation.
  • Diagnosis in children is often delayed, leading to prolonged suffering and misdiagnosis.

Purpose of the Study:

  • To investigate the diagnostic challenges and clinical features of narcolepsy in a pediatric cohort.
  • To highlight the importance of considering narcolepsy in children presenting with specific symptoms.

Main Methods:

  • Retrospective chart review of 51 children diagnosed with narcolepsy.
  • Analysis of clinical symptoms, sleep study results (Multiple Sleep Latency Test), HLA typing, and treatment outcomes.
  • Evaluation of diagnostic delays and family/teacher perceptions.

Main Results:

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  • A mean of three referrals preceded narcolepsy diagnosis.
  • Common symptoms included cataplexy, sleep paralysis, and hypnagogic hallucinations.
  • All children had abnormal Multiple Sleep Latency Test results, with a mean sleep latency of 1.5 minutes and multiple sleep-onset rapid eye movement periods.
  • High prevalence of HLA-DQB1*06:02 (DQw6) and HLA-DRB1*15:01 (DRw15) positivity.
  • All children exhibited depressive symptoms during follow-up.

Conclusions:

  • Narcolepsy diagnosis in children is frequently delayed.
  • Clinical presentation includes characteristic sleep-related symptoms and often co-occurs with depressive symptoms.
  • Consideration of narcolepsy is vital for children with unexplained behavioral and mood disturbances.