Evaluation of the sensory environment in a large tertiary ICU

作者：Oystein Tronstad, Dylan Flaws, Sue Patterson, Robert J. Holdsworth, Veronica Garcia-Hansen, Francisca Rodríguez Leonard, Ruth Ong, Stephanie T. Yerkovich, John F. Fraser · 发表于：Critical Care · 年份：2023 · DOI：10.1186/s13054-023-04744-8 · 被引用次数：29 · 研究领域：Intensive Care Unit Cognitive Disorders、Healthcare Technology and Patient Monitoring、Frailty in Older Adults

BACKGROUND: ICU survival is improving. However, many patients leave ICU with ongoing cognitive, physical, and/or psychological impairments and reduced quality of life. Many of the reasons for these ongoing problems are unmodifiable; however, some are linked with the ICU environment. Suboptimal lighting and excessive noise contribute to a loss of circadian rhythms and sleep disruptions, leading to increased mortality and morbidity. Despite long-standing awareness of these problems, meaningful ICU redesign is yet to be realised, and the 'ideal' ICU design is likely to be unique to local context and patient cohorts. To inform the co-design of an improved ICU environment, this study completed a detailed evaluation of the ICU environment, focussing on acoustics, sound, and light. METHODS: This was an observational study of the lighting and acoustic environment using sensors and formal evaluations. Selected bedspaces, chosen to represent different types of bedspaces in the ICU, were monitored during prolonged study periods. Data were analysed descriptively using Microsoft Excel. RESULTS: Two of the three monitored bedspaces showed a limited difference in lighting levels across the day, with average daytime light intensity not exceeding 300 Lux. In bedspaces with a window, the spectral power distribution (but not intensity) of the light was similar to natural light when all ceiling lights were off. However, when the ceiling lights were on, the spectral power distribution was similar...