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Polysomnographic Sleep Patterns in Children and Adolescents in Unresponsive Wakefulness Syndrome

Paolo Avantaggiato1, Erika Molteni, Francesca Formica

  • 1Acquired Brain Injury Unit, Scientific Institute "Eugenio Medea," Bosisio Parini, Lecco, Italy (Drs Avantaggiato, Molteni, Formica, Arcieri, Locatelli, and Strazzer); Department of Experimental and Clinical Medicine, University of Udine Medical School, Udine, Italy (Drs Gigli and Valente); and Neurology Unit and Center of Sleep Medicine, "Santa Maria della Misericordia" University Hospital, Udine, Italy (Drs Lorenzut and de Biase).

The Journal of Head Trauma Rehabilitation
|February 21, 2015
PubMed

Insights

Polysomnography identified distinct sleep patterns in children with acquired brain injuries and disorders of consciousness. These patterns, including REM sleep and spindles, predict recovery potential in pediatric unresponsive wakefulness syndrome.

Area of Science:

  • Pediatric Neurology
  • Sleep Medicine
  • Neurorehabilitation

Background:

  • Disorders of consciousness (UWS) in children following acquired brain injury present diagnostic and prognostic challenges.
  • Prolonged polysomnography (PSG) offers detailed neurophysiological insights but requires pattern identification for clinical utility.

Purpose of the Study:

  • To identify qualitative sleep patterns (SPPUWS) in pediatric unresponsive wakefulness syndrome (UWS) using prolonged PSG recordings.
  • To assess the clinical relevance of identified sleep patterns and neurophysiological markers (REM sleep, sleep spindles) for predicting outcomes in pediatric UWS.

Main Methods:

  • Conducted PSG studies in 27 pediatric patients with subacute UWS due to acquired brain damage.
  • Performed comprehensive neurological examinations and clinical assessments using standardized scales.
  • Evaluated patient outcomes at a 36-month follow-up.

Main Results:

  • Identified 6 distinct sleep patterns (SPPUWS) demonstrating increasing neuroelectrical complexity.
  • The presence of organized sleep patterns, REM sleep, and sleep spindles in the subacute phase strongly predicted favorable outcomes.
  • Found significant correlations between SPPUWS and recovery, validated by multiple clinical and rehabilitation scales.

Conclusions:

  • Polysomnography serves as a valuable prognostic tool in pediatric UWS.
  • PSG can predict recovery potential in children with UWS significantly earlier than clinical scales alone.
Abstract

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