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논문 기본 정보

자료유형
학술저널
저자정보
이효진 (Seoul National University College of Medicine) 배은혜 (Seoul National University College of Medicine) 이홍열 (서울대학교) 이상민 (서울대학교) 이진우 (서울대학교)
저널정보
대한중환자의학회 Acute and Critical Care Acute and Critical Care 제36권 제4호
발행연도
2021.11
수록면
332 - 341 (10page)

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Background: Patients in the intensive care unit (ICU) have increased risks of delirium, which is as sociated with worse outcomes. As pharmacologic treatments for delirium are ineffective, preven tion is important. Nonpharmacologic preventive strategies include exposure to natural light and restoring circadian rhythm. We investigated the effect of exposure to natural light through win dows on delirium in the ICU. Methods: This retrospective cohort study assessed all patients admitted to the medical ICU of a university-affiliated hospital between January and June 2020 for eligibility. The ICU included 12 isolation rooms, six with and six without windows. Patients with ICU stays of >48 hours were in cluded and were divided into groups based on their admission to a single room with (window group) or without windows (windowless group). The primary outcome was the cumulative inci dence of delirium. The secondary outcomes were the numbers of delirium-and mechanical ventila tion-free days, ICU and hospital length of stay, and in-ICU and 28-day mortalities. Results: Of the 150 included patients (window group: 83 [55.3%]; windowless group: 67 [44.7%]), the cumulative incidence of delirium was significantly lower in the window group than in the win dowless group (21.7% vs. 43.3%; relative risk, 1.996; 95% confidence interval [CI], 1.220?3.265). Other secondary outcomes did not differ between groups. Admission to a room with a window was independently associated with a decreased risk of delirium (adjusted odds ratio, 0.318; 95% CI, 0.125?0.805). Conclusions: Exposure to natural light through windows was associated with a lower incidence of delirium in the ICU

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