Unobtrusive sleep state measurements in preterm infants - A review

J.V.S.W. Werth, L. Atallah, Peter Andriessen, X. Long, E. Zwartkruis-Pelgrim, R.M. Aarts

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Abstract

Sleep is important for the development of preterm infants. During sleep, neural connections are formed and the development of brain regions is triggered. In general, various rudimentary sleep states can be identified in the preterm infant, namely active sleep (AS), quiet sleep (QS) and intermediate sleep (IS). As the infant develops, sleep states change in length and organization, with these changes as important indicators of brain development. As a result, several methods have been deployed to distinguish between the different preterm infant sleep states, among which polysomnography (PSG) is the most frequently used. However, this method is limited by the use of adhesive electrodes or patches that are attached to the body by numerous cables that can disturb sleep. Given the importance of sleep, this review explores more unobtrusive methods that can identify sleep states without disturbing the infant. To this end, after a brief introduction to preterm sleep states, an analysis of the physiological characteristics associated with the different sleep states is provided and various methods of measuring these physiological characteristics are explored. Finally, the advantages and disadvantages of each of these methods are evaluated and recommendations for neonatal sleep monitoring proposed.
Original languageEnglish
Pages (from-to)109-122
Number of pages14
JournalSleep Medicine Reviews
Volume32
Early online date6 Apr 2016
DOIs
Publication statusPublished - 1 Apr 2017

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Keywords

  • Preterm infant sleep; active sleep; quiet sleep; unobtrusive sleep measurement; contactless vital sign measurement; sleep monitoring
  • Sleep monitoring
  • Quiet sleep
  • Contactless vital sign measurement
  • Unobtrusive sleep measurement
  • Active sleep
  • Preterm infant sleep
  • Humans
  • Electroencephalography
  • Infant, Premature/physiology
  • Polysomnography
  • Sleep/physiology
  • Sleep Stages/physiology
  • Infant, Newborn

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