Summary
This review highlights that despite advances in ICU clinical care, the ICU environment remains over-illuminated and disruptive to patient circadian rhythms and sleep. Improved lighting design in ICUs—reducing excessive illumination and incorporating circadian-appropriate light-dark cycles—may offer meaningful benefits for critically ill patients.
Key Findings
- ICU environments are characterized as consistently over-illuminated, contributing to circadian disruption in critically ill patients.
- The review notes that nursing and business literature contains substantially more research on healthcare lighting environments than the medical/scientific community has produced, suggesting an evidence gap.
- No specific quantitative outcome data are reported in the abstract; the paper is a narrative review summarizing the state of knowledge as of 2011.
Categories
ICU & Critical Care: Reviews the ICU environment including lighting conditions and their effects on critically ill patients.
Sleep & Circadian Health: Discusses how ICU lighting disrupts circadian rhythms and sleep in critically ill patients.
The Science of Light: Covers the biological mechanisms by which light affects critical illness outcomes including circadian and neuroendocrine pathways.
Author(s)
R Castro, DC Angus, MR Rosengart
Publication Year
2011
Number of Citations
56
Related Publications
ICU & Critical Care
- Evaluación de la expresión de los genes reloj y su relación con el sistema circadiano en pacientes críticos
- The evening light environment in hospitals can be designed to produce less disruptive effects on the circadian system and improve sleep
- Circadian Lighting Was Associated with a Reduction in the Number of Hospitalized Patients Experiencing Falls: A Retrospective Observational Study
- Effect of Dynamic Light at the Coronary Care Unit on the Length of Hospital Stay and Development of Delirium
- Use of Lung Ultrasound in the New Definitions of Acute Respiratory Distress Syndrome Increases the Occurrence Rate of Acute Respiratory Distress Syndrome
Sleep & Circadian Health
- Phototransduction by retinal ganglion cells that set the circadian clock
- The mammalian circadian timing system: organization and coordination of central and peripheral clocks
- The two‐process model of sleep regulation: a reappraisal
- Melanopsin is required for non-image-forming photic responses in blind mice
- Strange vision: ganglion cells as circadian photoreceptors
The Science of Light
- Phototransduction by retinal ganglion cells that set the circadian clock
- Color appearance models
- The mammalian circadian timing system: organization and coordination of central and peripheral clocks
- Diminished pupillary light reflex at high irradiances in melanopsin-knockout mice
- Melanopsin is required for non-image-forming photic responses in blind mice