Related Experiment Video
Updated: Jun 26, 2025

Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
Published on: October 2, 2019
"Oh My Sleeping Child" … Narcolepsy Type 1 in a 22-Month-Old Boy
Barbra Giourgas1, Alexandra Morgan2, Sonal Bhatia1
1Department of Pediatrics, Division of Pediatric Neurology, Shawn Jenkins Children's Hospital and Medical University of South Carolina, Charleston, SC, USA.
Insights
Diagnosing narcolepsy in very young children can be challenging. Measuring hypocretin-1 (orexin) levels in cerebrospinal fluid (CSF) offers a viable method for diagnosing narcolepsy type 1 in infants too young for polysomnography with multiple sleep latency testing (PSG with MSLT).
Area of Science:
- Neurology
- Pediatrics
- Sleep Medicine
Background:
- Pediatric narcolepsy presents diagnostic challenges, typically requiring clinical evaluation, polysomnography with multiple sleep latency testing (PSG with MSLT), and cerebrospinal fluid (CSF) hypocretin-1 (orexin) levels.
- Narcolepsy type 1 diagnosis in very young children is difficult due to limitations of standard testing methods.
Observation:
- A 22-month-old boy presented with excessive daytime sleepiness (EDS) and frequent falls.
- This case highlights the potential for narcolepsy in infants younger than typically diagnosed.
Findings:
- The child was diagnosed with narcolepsy type 1 using CSF hypocretin-1 (orexin) levels.
- This method proved effective for diagnosing narcolepsy in a patient too young for PSG with MSLT.
Implications:
- CSF hypocretin-1 (orexin) levels can be a crucial diagnostic tool for narcolepsy type 1 in pre-school-aged children.
- Early diagnosis and intervention in pediatric narcolepsy can significantly improve cognitive development and reduce long-term complications.
- This case report suggests narcolepsy may occur earlier than previously documented, necessitating broader diagnostic considerations.
Abstract:
Pediatric narcolepsy is a complex disorder with unique diagnostic challenges. It is diagnosed with a combination of clinical presentation, polysomnogram with multiple sleep latency test (PSG with MSLT), and occasionally, hypocretin-1 (orexin) levels in the cerebrospinal fluid (CSF). This report describes a 22-month-old boy experiencing excessive daytime sleepiness (EDS) and frequent falls. The patient was subsequently diagnosed with narcolepsy using hypocretin-1 (orexin) levels. The intent of this report is to establish the utility of using hypocretin-1 (orexin) levels to diagnose narcolepsy type 1 in children who are too young to undergo PSG with MSLT. To our knowledge, there are no reports of narcolepsy in a patient this young. Early recognition and treatment of narcolepsy in children younger than age five may lead to a substantial impact on their cognitive development and minimize potential long- term complications.
More Related Videos
Related Concept Videos
Narcolepsy
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
REM Sleep Behavior Disorder
RBD is significantly associated with...
Seizures: Classification
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Restless Leg Syndrome and Night Terrors
The exact cause of RLS is not fully understood, but it is believed to involve dopamine, a neurotransmitter that helps regulate muscle movement. Imbalances in dopamine levels...
Management of Insomnia

