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The maintenance of wakefulness test in pediatric narcolepsy

Stephanie Zandieh1, Sriram Ramgopal, Umakanth Khatwa

  • 1Center for Pediatric Sleep Disorders, Boston Children's Hospital, Boston, Massachusetts 02115, USA.

Pediatric Neurology
|May 15, 2013
PubMed

Insights

The Maintenance of Wakefulness Test (MWT) shows promise for evaluating treatment effectiveness in pediatric narcolepsy. This study found MWT results influenced management decisions in most pediatric patients tested.

Area of Science:

  • Neurology
  • Sleep Medicine
  • Pediatric Clinical Research

Background:

  • Pediatric narcolepsy requires objective measures to track treatment response.
  • The Maintenance of Wakefulness Test (MWT) is a potential tool for this assessment.
  • Limited data exists on MWT utility in the pediatric population.

Purpose of the Study:

  • To evaluate the feasibility and utility of the Maintenance of Wakefulness Test (MWT) in children with narcolepsy.
  • To assess the MWT's role in guiding treatment adjustments for pediatric narcolepsy.

Main Methods:

  • Retrospective chart review of pediatric narcolepsy patients who underwent MWT between 2008 and 2012.
  • Defined MWT mean sleep latency cutoffs: <8 minutes for inadequate hypersomnia control, >20 minutes for adequate control.
  • Analyzed MWT results, including sleep-onset rapid eye movement sleep events, and their impact on clinical management.

Main Results:

  • Thirteen MWTs were performed on 10 children (median age 15.8 years) with narcolepsy; six had cataplexy.
  • Median mean sleep latency across all tests was 16 minutes (range 5.8-40 minutes).
  • MWT findings led to changes in treatment management for seven out of 10 patients.

Conclusions:

  • The Maintenance of Wakefulness Test (MWT) appears to be a useful and feasible tool for assessing treatment response in pediatric narcolepsy.
  • Further research is recommended to establish normative MWT data for children, both with and without narcolepsy.

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