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Lighting, sleep and circadian rhythm : An intervention study in the intensive care unit

Engwall, Marie ; Fridh, Isabell ; Johansson, Lotta ; Bergbom, Ingegerd and Lindahl, Berit LU (2015) In Intensive and Critical Care Nursing 31(6). p.325-335
Abstract

Patients in an intensive care unit (ICU) may risk disruption of their circadian rhythm. In an intervention research project a cycled lighting system was set up in an ICU room to support patients' circadian rhythm. Part I aimed to compare experiences of the lighting environment in two rooms with different lighting environments by lighting experiences questionnaire. The results indicated differences in advantage for the patients in the intervention room (. n=. 48), in perception of daytime brightness (. p=. 0.004). In nighttime, greater lighting variation (. p=. 0.005) was found in the ordinary room (. n=. 52). Part II aimed to describe experiences of lighting in the room equipped with the cycled lighting environment. Patients (. n=. 19)... (More)

Patients in an intensive care unit (ICU) may risk disruption of their circadian rhythm. In an intervention research project a cycled lighting system was set up in an ICU room to support patients' circadian rhythm. Part I aimed to compare experiences of the lighting environment in two rooms with different lighting environments by lighting experiences questionnaire. The results indicated differences in advantage for the patients in the intervention room (. n=. 48), in perception of daytime brightness (. p=. 0.004). In nighttime, greater lighting variation (. p=. 0.005) was found in the ordinary room (. n=. 52). Part II aimed to describe experiences of lighting in the room equipped with the cycled lighting environment. Patients (. n=. 19) were interviewed and the results were presented in categories: "A dynamic lighting environment", "Impact of lighting on patients' sleep", "The impact of lighting/lights on circadian rhythm" and "The lighting calms". Most had experiences from sleep disorders and half had nightmares/sights and circadian rhythm disruption. Nearly all were pleased with the cycled lighting environment, which together with daylight supported their circadian rhythm. In night's actual lighting levels helped patients and staff to connect which engendered feelings of calm.

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author
; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Circadian rhythm, Content analysis, Critical care, Cycled light, Intensive care unit, Interview, Lighting, Mann-Whitney-test, Nursing, Sleep
in
Intensive and Critical Care Nursing
volume
31
issue
6
pages
325 - 335
publisher
Elsevier
external identifiers
  • scopus:84946495465
  • pmid:26215384
ISSN
0964-3397
DOI
10.1016/j.iccn.2015.07.001
language
English
LU publication?
no
id
37f4dc75-c57f-4ff9-8893-52297b74dd64
date added to LUP
2020-04-14 11:59:36
date last changed
2024-04-17 07:55:01
@article{37f4dc75-c57f-4ff9-8893-52297b74dd64,
  abstract     = {{<p>Patients in an intensive care unit (ICU) may risk disruption of their circadian rhythm. In an intervention research project a cycled lighting system was set up in an ICU room to support patients' circadian rhythm. Part I aimed to compare experiences of the lighting environment in two rooms with different lighting environments by lighting experiences questionnaire. The results indicated differences in advantage for the patients in the intervention room (. n=. 48), in perception of daytime brightness (. p=. 0.004). In nighttime, greater lighting variation (. p=. 0.005) was found in the ordinary room (. n=. 52). Part II aimed to describe experiences of lighting in the room equipped with the cycled lighting environment. Patients (. n=. 19) were interviewed and the results were presented in categories: "A dynamic lighting environment", "Impact of lighting on patients' sleep", "The impact of lighting/lights on circadian rhythm" and "The lighting calms". Most had experiences from sleep disorders and half had nightmares/sights and circadian rhythm disruption. Nearly all were pleased with the cycled lighting environment, which together with daylight supported their circadian rhythm. In night's actual lighting levels helped patients and staff to connect which engendered feelings of calm.</p>}},
  author       = {{Engwall, Marie and Fridh, Isabell and Johansson, Lotta and Bergbom, Ingegerd and Lindahl, Berit}},
  issn         = {{0964-3397}},
  keywords     = {{Circadian rhythm; Content analysis; Critical care; Cycled light; Intensive care unit; Interview; Lighting; Mann-Whitney-test; Nursing; Sleep}},
  language     = {{eng}},
  month        = {{12}},
  number       = {{6}},
  pages        = {{325--335}},
  publisher    = {{Elsevier}},
  series       = {{Intensive and Critical Care Nursing}},
  title        = {{Lighting, sleep and circadian rhythm : An intervention study in the intensive care unit}},
  url          = {{http://dx.doi.org/10.1016/j.iccn.2015.07.001}},
  doi          = {{10.1016/j.iccn.2015.07.001}},
  volume       = {{31}},
  year         = {{2015}},
}