Sleep in intensive care unit

The role of environment

Yuliya Boyko, Poul Jennum, Miki Nikolic, René Holst, Helle Oerding, Palle Toft

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

PURPOSE: To determine if improving intensive care unit (ICU) environment would enhance sleep quality, assessed by polysomnography (PSG), in critically ill mechanically ventilated patients.

MATERIALS AND METHODS: Randomized controlled trial, crossover design. The night intervention "quiet routine" protocol was directed toward improving ICU environment between 10pm and 6am. Noise levels during control and intervention nights were recorded. Patients on mechanical ventilation and able to give consent were eligible for the study. We monitored sleep by PSG.The standard (American Association of Sleep Medicine) sleep scoring criteria were insufficient for the assessment of polysomnograms. Modified classification for sleep scoring in critically ill patients, suggested by Watson et al. (Crit Care Med 2013;41:1958-1967), was used.

RESULTS: Sound level analysis showed insignificant effect of the intervention on noise reduction (P=.3). The analysis of PSGs revealed that only 53% of the patients had identifiable characteristics of normal sleep, whereas 47% showed only pathologic patterns.

CONCLUSIONS: Characteristics of normal sleep were absent in many of the PSG recordings in these critically ill patients. We were not able to further reduce the already existing low noise levels in the ICU and did not find any association between the environmental intervention and the presence of normal sleep characteristics in the PSG.

Original languageEnglish
JournalJournal of Critical Care
Volume37
Pages (from-to)99-105
ISSN0883-9441
DOIs
Publication statusPublished - 2017

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Intensive Care Units
Polysomnography
Critical Illness
Noise
Cross-Over Studies
Randomized Controlled Trials
Medicine

Cite this

Boyko, Yuliya ; Jennum, Poul ; Nikolic, Miki ; Holst, René ; Oerding, Helle ; Toft, Palle. / Sleep in intensive care unit : The role of environment. In: Journal of Critical Care. 2017 ; Vol. 37. pp. 99-105.
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title = "Sleep in intensive care unit: The role of environment",
abstract = "PURPOSE: To determine if improving intensive care unit (ICU) environment would enhance sleep quality, assessed by polysomnography (PSG), in critically ill mechanically ventilated patients.MATERIALS AND METHODS: Randomized controlled trial, crossover design. The night intervention {"}quiet routine{"} protocol was directed toward improving ICU environment between 10pm and 6am. Noise levels during control and intervention nights were recorded. Patients on mechanical ventilation and able to give consent were eligible for the study. We monitored sleep by PSG.The standard (American Association of Sleep Medicine) sleep scoring criteria were insufficient for the assessment of polysomnograms. Modified classification for sleep scoring in critically ill patients, suggested by Watson et al. (Crit Care Med 2013;41:1958-1967), was used.RESULTS: Sound level analysis showed insignificant effect of the intervention on noise reduction (P=.3). The analysis of PSGs revealed that only 53{\%} of the patients had identifiable characteristics of normal sleep, whereas 47{\%} showed only pathologic patterns.CONCLUSIONS: Characteristics of normal sleep were absent in many of the PSG recordings in these critically ill patients. We were not able to further reduce the already existing low noise levels in the ICU and did not find any association between the environmental intervention and the presence of normal sleep characteristics in the PSG.",
author = "Yuliya Boyko and Poul Jennum and Miki Nikolic and Ren{\'e} Holst and Helle Oerding and Palle Toft",
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Sleep in intensive care unit : The role of environment. / Boyko, Yuliya; Jennum, Poul; Nikolic, Miki; Holst, René; Oerding, Helle; Toft, Palle.

In: Journal of Critical Care, Vol. 37, 2017, p. 99-105.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Sleep in intensive care unit

T2 - The role of environment

AU - Boyko, Yuliya

AU - Jennum, Poul

AU - Nikolic, Miki

AU - Holst, René

AU - Oerding, Helle

AU - Toft, Palle

N1 - Copyright © 2016 Elsevier Inc. All rights reserved.

PY - 2017

Y1 - 2017

N2 - PURPOSE: To determine if improving intensive care unit (ICU) environment would enhance sleep quality, assessed by polysomnography (PSG), in critically ill mechanically ventilated patients.MATERIALS AND METHODS: Randomized controlled trial, crossover design. The night intervention "quiet routine" protocol was directed toward improving ICU environment between 10pm and 6am. Noise levels during control and intervention nights were recorded. Patients on mechanical ventilation and able to give consent were eligible for the study. We monitored sleep by PSG.The standard (American Association of Sleep Medicine) sleep scoring criteria were insufficient for the assessment of polysomnograms. Modified classification for sleep scoring in critically ill patients, suggested by Watson et al. (Crit Care Med 2013;41:1958-1967), was used.RESULTS: Sound level analysis showed insignificant effect of the intervention on noise reduction (P=.3). The analysis of PSGs revealed that only 53% of the patients had identifiable characteristics of normal sleep, whereas 47% showed only pathologic patterns.CONCLUSIONS: Characteristics of normal sleep were absent in many of the PSG recordings in these critically ill patients. We were not able to further reduce the already existing low noise levels in the ICU and did not find any association between the environmental intervention and the presence of normal sleep characteristics in the PSG.

AB - PURPOSE: To determine if improving intensive care unit (ICU) environment would enhance sleep quality, assessed by polysomnography (PSG), in critically ill mechanically ventilated patients.MATERIALS AND METHODS: Randomized controlled trial, crossover design. The night intervention "quiet routine" protocol was directed toward improving ICU environment between 10pm and 6am. Noise levels during control and intervention nights were recorded. Patients on mechanical ventilation and able to give consent were eligible for the study. We monitored sleep by PSG.The standard (American Association of Sleep Medicine) sleep scoring criteria were insufficient for the assessment of polysomnograms. Modified classification for sleep scoring in critically ill patients, suggested by Watson et al. (Crit Care Med 2013;41:1958-1967), was used.RESULTS: Sound level analysis showed insignificant effect of the intervention on noise reduction (P=.3). The analysis of PSGs revealed that only 53% of the patients had identifiable characteristics of normal sleep, whereas 47% showed only pathologic patterns.CONCLUSIONS: Characteristics of normal sleep were absent in many of the PSG recordings in these critically ill patients. We were not able to further reduce the already existing low noise levels in the ICU and did not find any association between the environmental intervention and the presence of normal sleep characteristics in the PSG.

U2 - 10.1016/j.jcrc.2016.09.005

DO - 10.1016/j.jcrc.2016.09.005

M3 - Journal article

VL - 37

SP - 99

EP - 105

JO - Journal of Critical Care

JF - Journal of Critical Care

SN - 0883-9441

ER -