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Campbell E, Figueiro MG. Postoperative cognitive dysfunction: spotlight on light, circadian rhythms, and sleep. Front Neurosci 2024; 18:1390216. [PMID: 38699675 PMCID: PMC11064652 DOI: 10.3389/fnins.2024.1390216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/04/2024] [Indexed: 05/05/2024] Open
Abstract
Postoperative cognitive dysfunction (POCD) is a neurological disorder characterized by the emergence of cognitive impairment after surgery. A growing body of literature suggests that the onset of POCD is closely tied to circadian rhythm disruption (CRD). Circadian rhythms are patterns of behavioral and physiological change that repeat themselves at approximately, but not exactly, every 24 h. They are entrained to the 24 h day by the daily light-dark cycle. Postoperative CRD affects cognitive function likely by disrupting sleep architecture, which in turn provokes a host of pathological processes including neuroinflammation, blood-brain barrier disturbances, and glymphatic pathway dysfunction. Therefore, to address the pathogenesis of POCD it is first necessary to correct the dysregulated circadian rhythms that often occur in surgical patients. This narrative review summarizes the evidence for CRD as a key contributor to POCD and concludes with a brief discussion of how circadian-effective hospital lighting can be employed to re-entrain stable and robust circadian rhythms in surgical patients.
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Affiliation(s)
| | - Mariana G. Figueiro
- Light and Health Research Center, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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Acharya R, Blackwell S, Simoes J, Harris B, Booth L, Bhangu A, Glasbey J. Non-pharmacological interventions to improve sleep quality and quantity for hospitalized adult patients-co-produced study with surgical patient partners: systematic review. BJS Open 2024; 8:zrae018. [PMID: 38597159 PMCID: PMC11004792 DOI: 10.1093/bjsopen/zrae018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/10/2024] [Accepted: 01/21/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND Hospitalized patients experience sleep disruption with consequential physiological and psychological effects. Surgical patients are particularly at risk due to surgical stress and postoperative pain. This systematic review aimed to identify non-pharmacological interventions for improving sleep and exploring their effects on sleep-related and clinical outcomes. METHODS A systematic literature search was performed in accordance with PRISMA guidelines and was preregistered on the Open Science Framework (doi: 10.17605/OSF.IO/EA6BN) and last updated in November 2023. Studies that evaluated non-pharmacological interventions for hospitalized, adult patients were included. Thematic content analysis was performed to identify hypothesized mechanisms of action and modes of administration, in collaboration with a patient partner. Risk of bias assessment was performed using the Cochrane Risk Of Bias (ROB) or Risk Of Bias In Non-Randomized Studies - of Interventions (ROBINS-I) tools. RESULTS A total of 59 eligible studies and data from 14 035 patients were included; 28 (47.5%) were randomized trials and 26 included surgical patients (10 trials). Thirteen unique non-pharmacological interventions were identified, 17 sleep measures and 7 linked health-related outcomes. Thematic analysis revealed two major themes for improving sleep in hospital inpatients: enhancing the sleep environment and utilizing relaxation and mindfulness techniques. Two methods of administration, self-administered and carer-administered, were identified. Environmental interventions, such as physical aids, and relaxation interventions, including aromatherapy, showed benefits to sleep measures. There was a lack of standardized sleep measurement and an overall moderate to high risk of bias across all studies. CONCLUSIONS This systematic review has identified several sleep interventions that are likely to benefit adult surgical patients, but there remains a lack of high-quality evidence to support their routine implementation.
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Affiliation(s)
- Radhika Acharya
- National Institute of Health and Care Research (NIHR) Global Health Research Unit on Global Surgery, University of Birmingham, Institute of Translation Medicine, Birmingham, UK
| | - Sue Blackwell
- Patient Liaison Group (PLG), Association of Coloproctology of Great Britain and Ireland, London, UK
| | - Joana Simoes
- National Institute of Health and Care Research (NIHR) Global Health Research Unit on Global Surgery, University of Birmingham, Institute of Translation Medicine, Birmingham, UK
| | - Benjamin Harris
- National Institute of Health and Care Research (NIHR) Global Health Research Unit on Global Surgery, University of Birmingham, Institute of Translation Medicine, Birmingham, UK
| | - Lesley Booth
- Patients and Researchers Together (PART), Bowel Research UK, London, UK
| | - Aneel Bhangu
- National Institute of Health and Care Research (NIHR) Global Health Research Unit on Global Surgery, University of Birmingham, Institute of Translation Medicine, Birmingham, UK
| | - James Glasbey
- National Institute of Health and Care Research (NIHR) Global Health Research Unit on Global Surgery, University of Birmingham, Institute of Translation Medicine, Birmingham, UK
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Melatonin for Insomnia in Medical Inpatients: A Narrative Review. J Clin Med 2022; 12:jcm12010256. [PMID: 36615056 PMCID: PMC9821578 DOI: 10.3390/jcm12010256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/07/2022] [Accepted: 12/15/2022] [Indexed: 12/31/2022] Open
Abstract
In this narrative review, we describe what is known about non-pharmacological and pharmacological treatments for insomnia in medical inpatients, with a focus on melatonin. Hospital-acquired insomnia is common, resulting in shortened total sleep time and more nighttime awakenings. Sleep disturbance has been shown to increase systemic inflammation, pain, and the likelihood of developing delirium in hospital. Treatment for insomnia includes both non-pharmacological and pharmacological interventions, the latter of which requires careful consideration of risks and benefits given the known adverse effects. Though benzodiazepines and non-benzodiazepine benzodiazepine receptor agonists are commonly prescribed (i.e., sedative-hypnotics), they are relatively contraindicated for patients over the age of 65 due to the risk of increased falls, cognitive decline, and potential for withdrawal symptoms after long-term use. Exogenous melatonin has a comparatively low likelihood of adverse effects and drug-drug interactions and is at least as effective as other sedative-hypnotics. Though more research is needed on both its effectiveness and relative safety for inpatients, small doses of melatonin before bedtime may be an appropriate choice for inpatients when insomnia persists despite non-pharmacological interventions.
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Burger P, Van den Ende E, Lukman W, Burchell GL, Steur LM, Merten H, Nanayakkara PW, Gemke RJ. Sleep in hospitalized pediatric and adult patients – A systematic review and meta-analysis. Sleep Med X 2022; 4:100059. [PMID: 36406659 PMCID: PMC9672415 DOI: 10.1016/j.sleepx.2022.100059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/24/2022] [Accepted: 10/28/2022] [Indexed: 11/07/2022] Open
Abstract
Background Sleep is essential for recovery from illness. As a result, researchers have shown a growing interest in the sleep of hospitalized patients. Although many studies have been conducted over the past years, an up to date systematic review of the results is missing. Objective The objective of this systematic review was to assess sleep quality and quantity of hospitalized patients and sleep disturbing factors. Methods A systematic literature search was conducted within four scientific databases. The search focused on synonyms of 'sleep’ and 'hospitalization’. Papers written in English or Dutch from inception to April 25th,2022 were included for hospitalized patients >1 year of age. Papers exclusively reporting about patients receiving palliative, obstetric or psychiatric care were excluded, as well as patients in rehabilitation and intensive care settings, and long-term hospitalized geriatric patients. This review was performed in accordance with the PRISMA guidelines. Results Out of 542 full text studies assessed for eligibility, 203 were included, describing sleep quality and/or quantity of 17,964 patients. The median sample size of the studies was 51 patients (IQR 67, range 6–1472). An exploratory meta-analysis of the Total Sleep Time showed an average of 7.2 h (95%-CI 4.3, 10.2) in hospitalized children, 5.7 h (95%-CI 4.8, 6.7) in adults and 5.8 h (95%-CI 5.3, 6.4) in older patients (>60y). In addition, a meta-analysis of the Wake After Sleep Onset (WASO) showed a combined high average of 1.8 h (95%-CI 0.7, 2.9). Overall sleep quality was poor, also due to nocturnal awakenings. The most frequently cited external factors for poor sleep were noise and number of patients in the room. Among the variety of internal/disease-related factors, pain and anxiety were most frequently mentioned to be associated with poor sleep. Conclusion Of all studies, 76% reported poor sleep quality and insufficient sleep duration in hospitalized patients. Children sleep on average 0.7–3.8 h less in the hospital than recommended. Hospitalized adults sleep 1.3–3.2 h less than recommended for healthy people. This underscores the need for interventions to improve sleep during hospitalization to support recovery. An overview of the magnitude of sleep deprivation in hospitalized patients. A meta-analysis of studies reporting on some of the main sleep outcomes. An overview of internal and external factors affecting sleep in hospitalized patients. Guidance for potential interventions to improve sleep during clinical admission. Uncovers a knowledge gap regarding the sleep quality of hospitalized children and daytime sleep of hospitalized adults.
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Stewart NH, Arora VM. Sleep in Hospitalized Patients. Respir Med 2022. [DOI: 10.1007/978-3-030-93739-3_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lindskov FO, Iversen HK, West AS. Clinical outcomes of light therapy in hospitalized patients - A systematic review. Chronobiol Int 2021; 39:299-310. [PMID: 34727798 DOI: 10.1080/07420528.2021.1993240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Light therapy and the effects on biological function have been known and investigated for decades. Light therapy is used to compensate for the lack of exposure to sunlight, which is thought to be linked to major depressive disorder with seasonal patterns. It is applied as sessions with bright light mimicking natural sunlight. Lack of bright light during daytime is not the only factor to maintain the circadian rhythm, also lack of exposure to bright light at night is important. A new modality called naturalistic light shows promise, mimicking daylight by dynamically changing intensity and wavelengths throughout the day. Evidence of clinical effects, besides bright light effects on depression, is still limited, especially in hospital populations, and present review aims to extract results of the effect of any optical light intervention on hospitalized patients. Through database search, 29 trials were included, of which 8 trials used a variation of naturalistic light. Trials were heterogeneous regarding designs, populations, interventions, methods and outcomes. In 14 out of 17 studies investigating sleep duration, quality and circadian alignment, along with decreased fatigue and improved mood in daytime, light therapy had a significant effect. Circadian rhythm and rhythmicity were affected as well. The effect on mood and cognition was inconsistent across studies. Trials showed more significant outcomes when conducted in non-intensive care units and with duration >5 days. Lux was reported in and compared across 24 studies and did not appear to be correlated to outcome, rather the distribution of wavelengths should be considered when conducting trials in the future. Of the 8 trials investigating naturalistic light, 4 trials had significant outcomes and 3 had adverse outcomes compared to one in the standard light regime. The overall effect of light therapy is beneficial, but evidence for the effect of naturalistic light is still insufficient to be recommended before other modalities. Future research in this area should be conducted in facilities where naturalistic light is installed, with a focus on the spectral distribution.
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Affiliation(s)
- Filippa O Lindskov
- Clinical Stroke Research Unit, Department of Neurology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Helle K Iversen
- Clinical Stroke Research Unit, Department of Neurology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anders S West
- Clinical Stroke Research Unit, Department of Neurology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Stewart NH, Arora VM. Let's Not Sleep on It: Hospital Sleep Is a Health Issue Too. Jt Comm J Qual Patient Saf 2021; 47:337-339. [PMID: 33903035 DOI: 10.1016/j.jcjq.2021.03.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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West A, Simonsen SA, Jennum P, Cyril Hansen N, Schønsted M, Zielinski A, Sander B, Iversen HK. An exploratory investigation of the effect of naturalistic light on fatigue and subjective sleep quality in stroke patients admitted for rehabilitation: A randomized controlled trial. NeuroRehabilitation 2020; 45:187-200. [PMID: 31498136 DOI: 10.3233/nre-192752] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Daylight entrains the central circadian pacemaker to the 24-hour day and is crucial for optimal alertness and sleep-quality. Rehabilitation patients tend to lack exposure to sufficient natural light. OBJECTIVE Installed diurnal naturalistic light may reduce the known disrupted sleep quality and fatigue seen in post stroke patients. METHODS Stroke patients were randomized to either an intervention rehabilitation unit (IU) equipped with naturalistic lighting (artificial sunlight spectrum) or to a control rehabilitation unit (CU) with standard indoor lighting. At inclusion and discharge, fatigue and subjective sleep quality were measured. RESULTS Ninety stroke patients were included between May 2014, and June 2015. At discharge, patients from the IU experienced less fatigue than the CU patients, based on the Multidimensional Fatigue Inventory questionnaire general (IU, n = 28; CU, n = 30; diff - 20.6%, 95% confidence interval (CI) [- 35.0%; - 3.0%]; P = 0.025) and the Rested Statement (IU, n = 28; CU, n = 30; diff + 41.6%, 95% CI [+4.6%; +91.8%]; P = 0.025). No differences were detected between groups in sleepiness or subjective sleep quality by the Pittsburgh Sleep Quality Index. CONCLUSIONS Fatigue was significantly reduced in rehabilitation patients exposed to naturalistic lighting during admission.
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Affiliation(s)
- Anders West
- Clinical Stroke Research Unit, Department of Neurology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sofie Amalie Simonsen
- Clinical Stroke Research Unit, Department of Neurology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Poul Jennum
- Danish Center for Sleep Medicine, Department of Neurophysiology Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Niklas Cyril Hansen
- Clinical Stroke Research Unit, Department of Neurology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Marie Schønsted
- Clinical Stroke Research Unit, Department of Neurology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Alexander Zielinski
- Clinical Stroke Research Unit, Department of Neurology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Birgit Sander
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Helle K Iversen
- Clinical Stroke Research Unit, Department of Neurology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Miller MA, Renn BN, Chu F, Torrence N. Sleepless in the hospital: A systematic review of non-pharmacological sleep interventions. Gen Hosp Psychiatry 2019; 59:58-66. [PMID: 31170567 PMCID: PMC6620136 DOI: 10.1016/j.genhosppsych.2019.05.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/23/2019] [Accepted: 05/23/2019] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Poor sleep is highly prevalent in inpatient medical settings and has been associated with attenuated healing and worsened outcomes following hospitalization. Although nonpharmacological interventions are preferred, little is known about the best way to intervene in hospital settings. METHOD A systematic review of published literature examining nonpharmacological sleep interventions among inpatients in Embase, PsycINFO and PubMed in accordance with PRISMA guidelines. RESULTS Forty-three of the 1529 originally identified manuscripts met inclusion criteria, encompassing 2713 hospitalized participants from 18 countries comprised of psychiatric and older adult patients living in hospital settings. Main outcomes were subjective and objective measures of sleep duration, quality, and insomnia. CONCLUSIONS Overall, the review was unable to recommend any specific intervention due to the current state of the literature. The majority of included research was limited in quality due to lack of controls, lack of blinding, and reliance on self-reported outcomes. However, the literature suggests melatonin and CBT-I likely have the most promise to improve sleep in inpatient medical settings. Additionally, environmental modifications, including designated quiet time and ear plugs/eye masks, could be easily adopted in the care environment and may support sleep improvement. More rigorous research in nonpharmacological sleep interventions for hospitalized individuals is required to inform clinical recommendations.
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Affiliation(s)
- Megan A Miller
- Rehabilitation Care Service, VA Puget Sound -Seattle Division, Seattle, WA, United States of America.
| | - Brenna N Renn
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, United States of America
| | - Frances Chu
- University of Washington Health Sciences Library, Seattle, WA, United States of America
| | - Nicole Torrence
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, United States of America; Geriatrics and Extended Care Service, VA Puget Sound - Seattle Division, Seattle, WA, United States of America
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Abstract
Hospitalized patients frequently have disordered and poor-quality sleep due to a variety of both intrinsic and extrinsic factors. These include frequent nighttime intrusions, insomnia related to pain and unfamiliar environments, dark conditions during the day with loss of natural light, and disruption of the natural sleep cycle due to illness. Sleep wake disturbances can result in a deleterious consequence on physical, emotional, and cognitive status, which may impact patient satisfaction, clinical recovery, and hospital length of stay. Despite this, clinicians frequently fail to document sleep disturbances and are generally unaware of the best practices to improve sleep quality in the hospital. A PubMed search was conducted using the terms: ("sleep and hospitalized patients") and ("sleep and hospitalization") to review the published data on the topic of sleep in hospitalized medical patients. The search was limited to English-language articles published between 2000 and 2018. Subsequent PubMed searches were performed to clarify the data described in the initial search, including the terms "hospital sleep protocols," "hospitalized patients sleep documentation," and "hospitalized patients sleep quality". The purpose of this review is to discuss sleep disturbances in hospitalized patients with a focus on causes of sleep disturbance, the effect of poor-quality sleep, high risk populations, considerations for surveillance and prevention, and pharmacologic and non-pharmacologic options for treatment.
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Affiliation(s)
- Anne Marie Morse
- Geisinger Commonwealth School of Medicine, Department of Child Neurology and Sleep Medicine Geisinger Medical Center, Janet Weis Children’s Hospital, 100 N. Academy Ave, Danville, PA 17820, USA
| | - Evin Bender
- Department of Neurology, Geisinger Medical Center, 100 N. Academy Ave, Danville, PA 17820, USA
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Katsuura T, Lee S. A review of the studies on nonvisual lighting effects in the field of physiological anthropology. J Physiol Anthropol 2019; 38:2. [PMID: 30670097 PMCID: PMC6343353 DOI: 10.1186/s40101-018-0190-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 12/04/2018] [Indexed: 12/16/2022] Open
Abstract
Here, we review the history and the trends in the research on the nonvisual effect of light in the field of physiological anthropology. Research on the nonvisual effect of light in the field of physiological anthropology was pioneered by Sato and colleagues in the early 1990s. These authors found that the color temperature of light affected physiological functions in humans. The groundbreaking event with regard to the study of nonvisual effects of light was the discovery of the intrinsically photosensitive retinal ganglion cells in the mammalian retina in the early 2000s. The interest of the physiological anthropology scientific community in the nonvisual effects of light has been increasing since then. A total of 61 papers on nonvisual effects of light were published in the Journal of Physiological Anthropology (including its predecessor journals) until October 2018, 14 papers (1.4/year) in the decade from 1992 to 2001, 45 papers (2.8/year) in the 16 years between 2002 and 2017, and two papers in 2018 (January-October). The number of papers on this topic has been increasing in recent years. We categorized all papers according to light conditions, such as color temperature of light, light intensity, and monochromatic light. Among the 61 papers, 11 papers were related to color temperature, 20 papers were related to light intensity, 18 papers were related to monochromatic light, and 12 papers were classified as others. We provide an overview of these papers and mention future research prospects.
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Affiliation(s)
- Tetsuo Katsuura
- Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
| | - Soomin Lee
- Center for Environment, Health and Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba, 277-0882, Japan
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Park MY, Chai CG, Lee HK, Moon H, Noh JS. The Effects of Natural Daylight on Length of Hospital Stay. ENVIRONMENTAL HEALTH INSIGHTS 2018; 12:1178630218812817. [PMID: 30546262 PMCID: PMC6287302 DOI: 10.1177/1178630218812817] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 10/17/2018] [Indexed: 05/28/2023]
Abstract
BACKGROUND AND PURPOSE While providing medical services, hospitals generate many data about patients. Such medical data could contribute to better treatments once their associations or patterns have been identified. With properly analyzed medical data, traditional knowledge at an individual level could be further extended to broader populations. This comprehensive study was performed to demonstrate the effectiveness of light using medical data accumulated over 15 years. METHODS Patients who were admitted to the window or door side of a six-bedded room were included. Patients admitted to the emergency room and elderly people aged >80 years were excluded. Patients' length of stay was compared per what bed they were in (excluding middle beds). A multiple regression analysis was performed with patients admitted to the window or door side to determine whether the window affected their hospital stay. In addition, a multiple regression analysis was performed after adjusting for confounders by 1:1 matching between the two groups (ie, age, sex, and admitting department). RESULTS Participants were 38 788 patients with a bed near the window and 46 233 patients with a bed near the door. Results revealed that patients' length of stay was shorter for those near the window compared with those near the door, which was also true after group matching (33 921 participants in each group). CONCLUSIONS Clinical trials that test evidence-based designs of physical environments in wards or hospital rooms are usually difficult to perform. As an alternative strategy, using accumulated electronic medical data, we assessed this key element of hospital design.
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Affiliation(s)
- Man Young Park
- Future Medicine Division, Korea Institute of Oriental Medicine, Daejeon, Korea
| | - Choul-Gyun Chai
- Department of Architecture, College of Engineering, Kwangwoon University, Seoul, Korea
| | - Hae-Kyung Lee
- Architectural Environment Research Institute, Borie, Seoul, Korea
| | - Hani Moon
- Department of Architecture, College of Engineering, Kwangwoon University, Seoul, Korea
| | - Jai Sung Noh
- Department of Psychiatry, School of Medicine, Ajou University, Suwon, Korea
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Abstract
Hospitalization is a period of acute sleep deprivation for older adults owing to environmental, medical, and patient factors. Although hospitalized patients are in need of adequate rest and recovery during acute illness, older patients face unique risks owing to acute sleep loss during hospitalization. Sleep loss in the hospital is associated with worse health outcomes, including cardiometabolic derangements and an increased risk of delirium. Because older patients are at risk of polypharmacy and medication side effects, a variety of nonpharmacologic interventions are recommended first to improve sleep loss for hospitalized older adults.
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Affiliation(s)
- Nancy H Stewart
- Creighton University Medical Center, 7500 Mercy Road, Omaha, NE 68124, USA
| | - Vineet M Arora
- Department of Medicine, University of Chicago, 5841 South Maryland Avenue, MC 2007 AMB W216, Chicago, IL 60637, USA.
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West A, Jennum P, Simonsen SA, Sander B, Pavlova M, Iversen HK. Impact of naturalistic lighting on hospitalized stroke patients in a rehabilitation unit: Design and measurement. Chronobiol Int 2017; 34:687-697. [PMID: 28430522 DOI: 10.1080/07420528.2017.1314300] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION AND RATIONALE Stroke is a major cause of acquired cerebral disability among adults, frequently accompanied by depression, anxiety, cognitive impairment, disrupted sleep and fatigue. New ways of intervention to prevent these complications are therefore needed. The major circadian regulator, the suprachiasmatic nucleus, is mainly controlled by natural daylight, and the blue spectrum is considered the most powerful. During stroke rehabilitation, patients typically are mostly indoors and therefore not exposed to the natural daytime variation in light intensity. Furthermore, several rehabilitation hospitals may be exposed to powerful light in the blue spectrum, but at a time that is adversely related to their endogenous circadian phase, for example in the late evening instead of the daytime. HYPOTHESIS Naturalistic light that mimics the natural daytime spectrum variation will have a positive impact on the health of poststroke patients admitted to rehabilitation. We test specifically for improved sleep and less fatigue (questionnaires, polysomnography, Actiwatch), improved well-being (questionnaires), lessen anxiety and depression (questionnaires), improved cognition (tests), stabilizing of the autonomous nervous system (ECG/HR, blood pressure, temperature) and stabilizing of the diurnal biochemistry (blood markers). STUDY DESIGN The study is a prospective parallel longitudinal randomized controlled study (quasi randomization). Stroke patients in need of rehabilitation will be included at the acute stroke unit and randomized to either the intervention unit (naturalistic lighting) or the control unit (CU) (standard lighting). The naturalistic light is installed in the entire IU (Cromaviso, Denmark). CONCLUSION This study aims to elucidate the influence of naturalistic light on patients during long-term hospitalization in a real hospital setting. The hypotheses are based on preclinical research, as studies using naturalistic light have never been performed before. Investigating the effects of naturalistic light in a clinical setting is therefore much needed.
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Affiliation(s)
- Anders West
- a Clinical Stroke Research Unit, Department of Neurology, Faculty of Health Sciences , University of Copenhagen , Rigshospitalet , Glostrup , Denmark
| | - Poul Jennum
- b Danish Center for Sleep Medicine, Department of Neurophysiology Faculty of Health Sciences , University of Copenhagen , Rigshospitalet , Glostrup , Denmark
| | - Sofie Amalie Simonsen
- a Clinical Stroke Research Unit, Department of Neurology, Faculty of Health Sciences , University of Copenhagen , Rigshospitalet , Glostrup , Denmark
| | - Birgit Sander
- c Department of Ophthalmology , Copenhagen University Hospital , Rigshospitalet , Glostrup , Denmark
| | - Milena Pavlova
- d Division of Epilepsy, Neurophysiology, and Sleep, Department of Neurology , Brigham and Women's Hospital, Harvard Medical School , Boston , MA , USA
| | - Helle K Iversen
- a Clinical Stroke Research Unit, Department of Neurology, Faculty of Health Sciences , University of Copenhagen , Rigshospitalet , Glostrup , Denmark
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DuBose JR, Hadi K. Improving inpatient environments to support patient sleep. Int J Qual Health Care 2016; 28:540-553. [DOI: 10.1093/intqhc/mzw079] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 06/17/2016] [Accepted: 06/21/2016] [Indexed: 02/04/2023] Open
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Camargo-Sanchez A, Niño CL, Sánchez L, Echeverri S, Gutiérrez DP, Duque AF, Pianeta O, Jaramillo-Gómez JA, Pilonieta MA, Cataño N, Arboleda H, Agostino PV, Alvarez-Baron CP, Vargas R. Theory of Inpatient Circadian Care (TICC): A Proposal for a Middle-Range Theory. Open Nurs J 2015; 9:1-9. [PMID: 25767632 PMCID: PMC4353124 DOI: 10.2174/1874434601509010001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 12/22/2014] [Accepted: 01/05/2015] [Indexed: 11/30/2022] Open
Abstract
The circadian system controls the daily rhythms of a variety of physiological processes. Most organisms show physiological, metabolic and behavioral rhythms that are coupled to environmental signals. In humans, the main synchronizer is the light/dark cycle, although non-photic cues such as food availability, noise, and work schedules are also involved. In a continuously operating hospital, the lack of rhythmicity in these elements can alter the patient’s biological rhythms and resilience. This paper presents a Theory of Inpatient Circadian Care (TICC) grounded in circadian principles. We conducted a literature search on biological rhythms, chronobiology, nursing care, and middle-range theories in the databases PubMed, SciELO Public Health, and Google Scholar. The search was performed considering a period of 6 decades from 1950 to 2013. Information was analyzed to look for links between chronobiology concepts and characteristics of inpatient care. TICC aims to integrate multidisciplinary knowledge of biomedical sciences and apply it to clinical practice in a formal way. The conceptual points of this theory are supported by abundant literature related to disease and altered biological rhythms. Our theory will be able to enrich current and future professional practice.
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Affiliation(s)
- Andrés Camargo-Sanchez
- Nursing School at the Universidad de Ciencias Aplicadas y Ambientales (U.D.C.A), Bogotá, Colombia
| | - Carmen L Niño
- Nursing School at the Universidad de Ciencias Aplicadas y Ambientales (U.D.C.A), Bogotá, Colombia
| | - Leonardo Sánchez
- Nursing School at the Universidad de Ciencias Aplicadas y Ambientales (U.D.C.A), Bogotá, Colombia
| | - Sonia Echeverri
- Nursing Department at Fundación Santa Fe de Bogotá University Hospital, Bogotá, Colombia
| | - Diana P Gutiérrez
- Division of Internal Medicine at Fundación Santa Fe de Bogotá University Hospital, Bogotá, Colombia
| | | | - Oscar Pianeta
- School of Medicine at the Universidad de Ciencias Aplicadas y Ambientales (U.D.C.A), Bogotá, Colombia
| | - Jenny A Jaramillo-Gómez
- Cell Death Group, School of Medicine and Institute of Genetics at the Universidad Nacional de Colombia, Bogotá, Colombia
| | - Martin A Pilonieta
- School of Medicine at the Universidad Nacional de Colombia, Bogotá, Colombia
| | - Nhora Cataño
- School of Nursing at the Universidad Nacional de Colombia, Bogotá, Colombia
| | - Humberto Arboleda
- Neurosciences Research Group, School of Medicine and Institute of Genetics at the Universidad Nacional de Colombia, Bogotá, Colombia
| | - Patricia V Agostino
- Laboratorio de Cronobiología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes/CONICET, Buenos Aires, Argentina
| | | | - Rafael Vargas
- School of Medicine at the Pontificia Universidad Javeriana, Bogotá, Colombia
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Sleep and circadian rhythms in hospitalized patients with decompensated cirrhosis: effect of light therapy. Neurochem Res 2014; 40:284-92. [PMID: 25135598 DOI: 10.1007/s11064-014-1414-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 08/06/2014] [Accepted: 08/08/2014] [Indexed: 01/23/2023]
Abstract
Patients with liver cirrhosis often exhibit sleep-wake abnormalities, which are, at least to some extent, circadian in origin. A relatively novel non-pharmacological approach to circadian disruption is appropriately timed bright light therapy. The aims of this pilot study were to investigate sleep-wake characteristics of a well-characterized population of inpatients with cirrhosis, and to evaluate the efficacy of bright light therapy in the hospital setting. Twelve consecutive inpatients with cirrhosis underwent complete sleep-wake assessment, to include qualitative and semi-quantitative (actigraphic) indices of night-time sleep quality, daytime sleepiness, diurnal preference, habitual sleep timing, quality of life, mood and circadian rhythmicity [i.e. urine collections for measurement of the melatonin metabolite 6-sulphatoxymelatonin (aMT6s)]. Patients showed extremely impaired night sleep quality (Pittsburg Sleep Quality Index global score: 16.3 ± 2.1) and daytime sleepiness was common (Epworth Sleepiness Scale: 8.3 ± 3.2). Five patients were randomly assigned to a single room in which lighting was controlled in relation to timing, spectral composition and intensity (lights on at 06:30 and off at 22:30, blue-enriched, more intense light in the morning, red-enriched, less intense light in the afternoon/evening); the others stayed in identical rooms with standard lighting. Sleep diaries revealed poor sleep quality, prolonged sleep latency (67 ± 138 min) and a reduced sleep efficiency (69 ± 21%). These features were confirmed by actigraphy (sleep efficiency: 71 ± 13%; fragmentation index: 55 ± 15%). Quality of life was globally impaired, and mood moderately depressed (Beck Depression Inventory: 19.4 ± 7.9). Seven patients underwent serial urine collections: no circadian aMT6s rhythm was detected in any of them, neither at baseline, nor during the course of hospitalization in either room (n = 4). In conclusion, sleep and circadian rhythms in hospitalized, decompensated patients with cirrhosis are extremely compromised. Treatment with bright light therapy did not show obvious, beneficial effects, most likely in relation to the severity of disturbance at baseline.
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Daemen EML, Flinsenberg ICM, Van Loenen EJ, Cuppen RPG, Rajae-Joordens RJE. Adaptable healing patient room for stroke patients. A staff evaluation. Methods Inf Med 2014; 53:406-15. [PMID: 24852400 DOI: 10.3414/me13-02-0032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 03/06/2014] [Indexed: 11/09/2022]
Abstract
INTRODUCTION This article is part of the focus theme of Methods of Information in Medicine on "Pervasive Intelligent Technologies for Health". BACKGROUND This paper addresses the evaluation with hospital staff of an in-patient environment that supports patients, family, nursing staff and medical specialists during the recovery process of neurology patients and especially patients recovering from a stroke. We describe the methods that were used to evaluate the Adaptive Daily Rhythm Atmospheres (ADRA), Artificial Skylight (AS) and Adaptive Stimulus Dosage (ASD) concepts. OBJECTIVES The goal of this evaluation was to gather qualitative and quantitative feedback from hospital staff about the usefulness, the usability and desirability of the Adaptive Daily Rhythm Atmospheres (ADRA), Artificial Skylight (AS) and Adaptive Stimulus Dosage (ASD) concepts that were implemented as different phases of a novel healing patient room. This paper reports the effects of these concepts with regard to 1) the healing process of the patient and 2) the workflow of the staff. These results are part of a larger R&D project and provide the initial feedback in an iterative user-centered design methodology. METHODS After signing informed consents, the group of participants was taken to the laboratory environment where they were introduced to the Adaptive Healing Environment Patient Room and where they could also experience the room. Then, the participants were seated next to the patient bed so they had a similar viewing angle as the patients. The participants received a booklet with questionnaires. The items on this questionnaire addressed the influence on the healing process (i.e., the possible effect the concept/phase has on the healing process of the patient, meaning faster recovery, better sleep and enhanced well-being) and influence on the workflow (i.e., the possible effect of such a concept/phase on the working activities of the staff in the ward). We presented every concept (AS and ASD) and all the phases of ADRA. After every presentation of the concept or phase of the ADRA system the participants rated the concept or phase anonymously on a 7-point Likert scale. In addition to rating the phase in the therefore designed booklets, they were also asked to motivate their ratings in writing. Subsequently, a focus group discussion took place. During the discussion the two note takers wrote down all the comments. Afterwards the quantitative results were analyzed with the non-parametric Kruskal-Wallis test. Significant effects were further analyzed in a post-hoc Mann-Whitney test. RESULTS The results show that hospital staff expects a positive effect on the healing process of the patient for the Artificial Skylight, the Adaptable Stimulus Dosage concept and the different ADRA phases that provide a clear daily rhythm structure during the day. In fact the staff members from different healthcare institutions and with different professional roles agreed on most aspects. In addition, the staff also expected a positive effect for almost all phases on the efficiency of the clinical workflow, also for the AS and ASD concepts. This is a very promising result as the phases were designed primarily with the healing effect of the patient in mind. CONCLUSIONS The hospital staff evaluation in the laboratory setting gave us an indication of the likely impact of the Adaptive Healing Environment Patient Room on the healing progress of patients. Furthermore, this laboratory evaluation of the concepts was an important step that enabled to improve the shortcomings of the current concept before starting clinical trials. In addition, we generated feedback from different departments from different institutions, which suggest that they all see similar added values for the patient room.
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Affiliation(s)
- E M L Daemen
- Elke M. L. Daemen, Philips Research, Philips Electronics Netherlands, High Tech Campus 34, Eindhoven, The Netherlands, E-mail:
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Tamrat R, Huynh-Le MP, Goyal M. Non-pharmacologic interventions to improve the sleep of hospitalized patients: a systematic review. J Gen Intern Med 2014; 29:788-95. [PMID: 24113807 PMCID: PMC4000341 DOI: 10.1007/s11606-013-2640-9] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 08/19/2013] [Accepted: 09/03/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Despite the known adverse effects of sleep deprivation on recovery from illness, studies have shown that sleep deprivation remains an incompletely addressed problem among acutely ill inpatients. Behavioral interventions are recommended as first-line therapy prior to using pharmacologic therapy due to the side effects of sedative hypnotics. The objective of this systematic review was to identify non-pharmacologic interventions that have been used to improve sleep quality and quantity of non-intensive care unit (ICU) inpatients. DATA SOURCES PubMed, Embase, Web of Science, CINAHL, and Cochrane Library through January 2013; manual searches of reference lists. STUDY ELIGIBILITY CRITERIA, PARTICIPANTS, INTERVENTIONS Any study in which a non-pharmacologic intervention was conducted in a general inpatient setting, and nighttime sleep quantity or quality was assessed. STUDY APPRAISAL AND SYNTHESIS METHODS Information on study design, populations, interventions, comparators, outcomes, time frame, and risk of bias were independently abstracted by two investigators. RESULTS 13 intervention studies with 1,154 participants were included. Four studies were randomized controlled trials. Seven studies had a low to medium risk of bias, and there was significant heterogeneity in the interventions. Relaxation techniques improved sleep quality 0-38%, interventions to improve sleep hygiene or reduce sleep interruptions improved sleep quantity 5%, and daytime bright light exposure improved sleep quantity 7-18%. LIMITATIONS The heterogeneity in the types and dose of interventions, outcome measures, length of follow-up, differences in patient populations, and dearth of randomized trials may dilute effects seen or make it more difficult to draw conclusions. CONCLUSIONS AND IMPLICATIONS OF KEY FINDINGS There is insufficient to low strength of evidence that any non-pharmacologic intervention improves sleep quality or quantity of general inpatients. Further studies are needed in this area to guide clinicians.
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Affiliation(s)
- Ruth Tamrat
- Division of General Internal Medicine, Johns Hopkins School of Medicine, 2024 E. Monument St, Suite 1-500W, Baltimore, MD, 21287, USA,
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Toyama Y, Wakamura T, Chin K. Response. Chest 2014; 145:183-4. [DOI: 10.1378/chest.13-1932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Bonmati-Carrion MA, Middleton B, Revell V, Skene DJ, Rol MA, Madrid JA. Circadian phase assessment by ambulatory monitoring in humans: correlation with dim light melatonin onset. Chronobiol Int 2013; 31:37-51. [PMID: 24164100 DOI: 10.3109/07420528.2013.820740] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The increased prevalence of circadian disruptions due to abnormal coupling between internal and external time makes the detection of circadian phase in humans by ambulatory recordings a compelling need. Here, we propose an accurate practical procedure to estimate circadian phase with the least possible burden for the subject, that is, without the restraints of a constant routine protocol or laboratory techniques such as melatonin quantification, both of which are standard procedures. In this validation study, subjects (N = 13) wore ambulatory monitoring devices, kept daily sleep diaries and went about their daily routine for 10 days. The devices measured skin temperature at wrist level (WT), motor activity and body position on the arm, and light exposure by means of a sensor placed on the chest. Dim light melatonin onset (DLMO) was used to compare and evaluate the accuracy of the ambulatory variables in assessing circadian phase. An evening increase in WT: WTOnset (WTOn) and "WT increase onset" (WTiO) was found to anticipate the evening increase in melatonin, while decreases in motor activity (Activity Offset or AcOff), body position (Position Offset (POff)), integrative TAP (a combination of WT, activity and body position) (TAPOffset or TAPOff) and an increase in declared sleep propensity were phase delayed with respect to DLMO. The phase markers obtained from subjective sleep (R = 0.811), WT (R = 0.756) and the composite variable TAP (R = 0.720) were highly and significantly correlated with DLMO. The findings strongly support a new method to calculate circadian phase based on WT (WTiO) that accurately predicts and shows a temporal association with DLMO. WTiO is especially recommended due to its simplicity and applicability to clinical use under conditions where knowing endogenous circadian phase is important, such as in cancer chronotherapy and light therapy.
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Affiliation(s)
- M A Bonmati-Carrion
- Chronobiology Laboratory, Department of Physiology, University of Murcia , 30100 Espinardo, Murcia , Spain and
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Bernhofer EI, Higgins PA, Daly BJ, Burant CJ, Hornick TR. Hospital lighting and its association with sleep, mood and pain in medical inpatients. J Adv Nurs 2013; 70:1164-73. [PMID: 24164506 DOI: 10.1111/jan.12282] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2013] [Indexed: 11/29/2022]
Abstract
AIMS To describe light exposure, sleep-wake patterns, mood, pain and their relationships in adult medical inpatients. BACKGROUND The hospital environment may contribute to patient discomfort by providing a lighting structure that interferes with circadian rhythmicity, sleep, mood and pain. DESIGN A descriptive correlational design was used in this preliminary study. METHODS Between May 2011-April 2012, data were collected from a convenience sample of 23 women and 17 men admitted to a large academically affiliated hospital in the United States. Over 72 hours, light exposure and sleep-wake patterns were continuously measured with wrist actigraph/light meters for each participant. Mood was measured daily using the Profile Of Mood States Brief™ Form. Subjective pain scores were abstracted from medical records. RESULTS Light exposure levels were low: mean daytime light intensity was 104·80 lux. Sleep time was fragmented and low: mean 236·35 minutes of sleep/night. Intra-daily stability scores indicated little sleep-wake synchronization with light. Fatigue and total mood disturbance scores were high and inversely associated with light. Pain levels were also high and positively associated with fatigue, but not directly with light exposure. Low light exposure significantly predicted fatigue and total mood disturbance. CONCLUSION Medical inpatients were exposed to light levels insufficient for circadian entrainment. Nevertheless, higher light exposure was associated with less fatigue and lower total mood disturbance in participants with pain, suggesting the need for further investigation to determine if manipulating light exposure for medical inpatients would be beneficial in affecting sleep-wake disturbances, mood and pain.
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Affiliation(s)
- Esther I Bernhofer
- Office of Research and Innovation, Nursing Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Kennedy MRC. Sleep as a moderating value in healthcare facility design. HERD-HEALTH ENVIRONMENTS RESEARCH & DESIGN JOURNAL 2012; 6:122-42. [PMID: 23224847 DOI: 10.1177/193758671200600108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Healthcare design is produced by large design teams with vital input from clients and expert consultants. Throughout the design process, choices are made based on evaluations by all parties; however, some of these evaluations cannot be reduced to a common metric. Many complex interactions defy objective evaluation. It is proposed that jointly agreed-on values can be deployed as moderators in subjective evaluations, allowing design teams to work together more harmoniously. OBJECT Design evidence base for one use-value: sleep. A literature review considers the evidence currently found regarding the value of sleep for hospital inpatients and the actual quality of inpatient sleep. Intrinsic and extrinsic reasons for shortened or poor sleep are reviewed, with an emphasis on environmental considerations. There are many manners in which designers and caregivers are aware that good sleeping conditions can be provided; therefore it is by choice, albeit unwittingly, that poor sleeping conditions have arisen. CONCLUSION The value of sleep to hospital inpatients is very high, even in the short term. Inpatients' sleep is currently not as good as it could or should be. Conflicting views, varied constraints, and requirements might be harmonized and give way to successful innovation if design teams and project stakeholders adopt moderating values as a guide for design evaluations.
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Hofhuis JGM, Langevoort G, Rommes JH, Spronk PE. Sleep disturbances and sedation practices in the intensive care unit--a postal survey in the Netherlands. Intensive Crit Care Nurs 2012; 28:141-9. [PMID: 22521860 DOI: 10.1016/j.iccn.2011.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 09/15/2011] [Accepted: 10/06/2011] [Indexed: 10/28/2022]
Abstract
BACKGROUND Sleep disturbances are common in critically ill patients treated in the intensive care unit (ICU) with possible serious consequences. OBJECTIVE The aim of this study was to get insight into sleeping and sedation practices in the adult ICUs in the Netherlands and survey which factors are important with respect to sleep in critically ill patients in the ICU. METHOD A multi-centre, exploratory survey sent via mail to nurse managers of all adult ICUs in the Netherlands. RESULTS Interventions without medication to improve the sleep of the critically ill patients were mostly defined as keeping patients awake during the day (94.2%), reducing noise of the ICU staff (89.7%) and reducing nursing interventions at night (86.8%). None of the ICUs used a sleep questionnaire. Nursing autonomy regarding sleep and sedation practices for patients (rated on a 10-point numerical scale) was judged as moderate (median 5, interquartile range (IQR) 3-7). How often nursing observations influence sleeping practices in the ICU was judged as good (median 8, IQR 7-8). How the average ICU patient was sleeping was judged as moderately well (median 6, IQR 5-7). Most intensive care units (83.8%) did not have a sleeping protocol, but 67.6% of these intensive care units suggested they should implement a sleeping protocol. CONCLUSIONS The average critically ill patient has sleep disturbances, that is, is sleeping moderately well according to nurses' views and opinions, mostly due to a disturbed sleep-awake cycle, delirium and nursing interventions. Intensive care nurses perceive only a moderate feeling of autonomy and influence regarding the management of sleeping practices.
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Affiliation(s)
- José G M Hofhuis
- Department of Intensive Care Gelre Hospitals, Apeldoorn, The Netherlands.
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Trochelman K, Albert N, Spence J, Murray T, Slifcak E. Patients and Their Families Weigh in on Evidence-Based Hospital Design. Crit Care Nurse 2012; 32:e1-e10. [DOI: 10.4037/ccn2012785] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Background
In 2 landmark publications, the Institute of Medicine reported on significant deficiencies in our current health care system. In response, an area of research examining the role of the physical environment in influencing outcomes for patients and staff gained momentum. The concept of evidence-based design has evolved, and the development of structural guidelines for new hospital construction was instituted by the American Institute of Architects in 2006.
Objective
To determine perceptions of patients and their families of evidence-based design features in a new heart center.
Methods
Hospitalized patients and their families, most of whom were in intensive care and step-down units, were surveyed and data from the Hospital Consumer Assessment of Healthcare Providers and Systems were reviewed to determine perceptions of evidence-based design features incorporated into a new heart center and to assess patients’ satisfaction with the environment.
Results
Responses were reviewed and categorized descriptively. Five general environment topics of focus emerged: privacy, space, noise, light, and overall atmosphere. Characteristics perceived as being dissatisfying and satisfying are discussed.
Conclusions
Critical care nurses must be aware of the current need to recognize how much the physical environment influences care delivery and take steps to maximize patients’ safety, satisfaction, and quality of care.
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Affiliation(s)
- Kathleen Trochelman
- Previously, Kathleen Trochelman was a nurse researcher in the Department of Nursing Research–Nursing Institute at the Cleveland Clinic, Cleveland, Ohio
| | - Nancy Albert
- Nancy Albert is director of nursing research and innovation at the Nursing Institute and a clinical nurse specialist at the Kaufman Center for Heart Failure at the Cleveland Clinic
| | - Jacqueline Spence
- Jacqueline Spence is a nurse manager in the cardiothoracic surgery telemetry areas, Heart and Vascular Institute, and Nursing Institute at the Cleveland Clinic
| | - Terri Murray
- Terri Murray is a nurse manager in the cardiothoracic surgery telemetry areas, Heart and Vascular Institute, and Nursing Institute at the Cleveland Clinic
| | - Ellen Slifcak
- Ellen Slifcak is a research staff nurse in the Department of Nursing Research–Nursing Institute at the Cleveland Clinic
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Jardim ACN, Pawley MDM, Cheeseman JF, Guesgen MJ, Steele CT, Warman GR. Validating the use of wrist-level light monitoring for in-hospital circadian studies. Chronobiol Int 2011; 28:834-40. [PMID: 21936617 DOI: 10.3109/07420528.2011.611603] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This clinical methods comparison study describes the difference between light levels measured at the wrist (Actiwatch-L) and at the eye (Daysimeter) in a postoperative in-patient population. The mean difference between the two devices was less than 10 lux at light levels less than 5000 lux. Agreement between the devices was found to decrease as eye-level light exposure increased. Measurements at eye level of 5000 lux or more corresponded to a difference between the devices of greater than 100 lux. Agreement between the eye- and wrist-level light measurements also appears to be influenced by time of day. During the day, the measurement differences were on average 50 lux higher at eye level, whereas at night they were on average 50 lux lower. Although the wrist-level monitor was found to underestimate light exposure at higher light levels, it was well tolerated by participants in the clinical setting. In contrast, the eye-level monitor was cumbersome and uncomfortable for the patients to wear. This study provides light-exposure data on patients in real conditions in the clinical environment. The results show that wrist-level monitoring provides an adequate estimate of light exposure for in-hospital circadian studies.
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Ulrich RS, Berry LL, Quan X, Parish JT. A Conceptual Framework for the Domain of Evidence-Based Design. HERD-HEALTH ENVIRONMENTS RESEARCH & DESIGN JOURNAL 2010; 4:95-114. [DOI: 10.1177/193758671000400107] [Citation(s) in RCA: 145] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The physical facilities in which healthcare services are performed play an important role in the healing process. Evidence-based design in healthcare is a developing field of study that holds great promise for benefiting key stakeholders: patients, families, physicians, and nurses, as well as other healthcare staff and organizations. In this paper, the authors present and discuss a conceptual framework intended to capture the current domain of evidence-based design in healthcare. In this framework, the built environment is represented by nine design variable categories: audio environment, visual environment, safety enhancement, wayfinding system, sustainability, patient room, family support spaces, staff support spaces, and physician support spaces. Furthermore, a series of matrices is presented that indicates knowledge gaps concerning the relationship between specific healthcare facility design variable categories and participant and organizational outcomes. From this analysis, the authors identify fertile research opportunities from the perspectives of key stakeholders.
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Turner PL, Van Someren EJW, Mainster MA. The role of environmental light in sleep and health: Effects of ocular aging and cataract surgery. Sleep Med Rev 2010; 14:269-80. [PMID: 20056462 DOI: 10.1016/j.smrv.2009.11.002] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Revised: 11/06/2009] [Accepted: 11/06/2009] [Indexed: 11/29/2022]
Affiliation(s)
- Patricia L Turner
- Department of Ophthalmology, University of Kansas School of Medicine, 7400 State Line Road, Prairie Village, KS 66208-3444, USA.
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Ulrich RS, Zimring C, Zhu X, DuBose J, Seo HB, Choi YS, Quan X, Joseph A. A Review of the Research Literature on Evidence-Based Healthcare Design. HERD-HEALTH ENVIRONMENTS RESEARCH & DESIGN JOURNAL 2008; 1:61-125. [DOI: 10.1177/193758670800100306] [Citation(s) in RCA: 683] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: This report surveys and evaluates the scientific research on evidence-based healthcare design and extracts its implications for designing better and safer hospitals. Background: It builds on a literature review conducted by researchers in 2004. Methods: Research teams conducted a new and more exhaustive search for rigorous empirical studies that link the design of hospital physical environments with healthcare outcomes. The review followed a two-step process, including an extensive search for existing literature and a screening of each identified study for the relevance and quality of evidence. Results: This review found a growing body of rigorous studies to guide healthcare design, especially with respect to reducing the frequency of hospital-acquired infections. Results are organized according to three general types of outcomes: patient safety, other patient outcomes, and staff outcomes. The findings further support the importance of improving outcomes for a range of design characteristics or interventions, including single-bed rooms rather than multibed rooms, effective ventilation systems, a good acoustic environment, nature distractions and daylight, appropriate lighting, better ergonomic design, acuity-adaptable rooms, and improved floor layouts and work settings. Directions for future research are also identified. Conclusions: The state of knowledge of evidence-based healthcare design has grown rapidly in recent years. The evidence indicates that well-designed physical settings play an important role in making hospitals safer and more healing for patients, and better places for staff to work.
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Richardson A, Allsop M, Coghill E, Turnock C. Earplugs and eye masks: do they improve critical care patients’ sleep? Nurs Crit Care 2007; 12:278-86. [DOI: 10.1111/j.1478-5153.2007.00243.x] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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García-Sáenz JA, Martín M, Maestro M, Vidaurreta M, Veganzones S, Villalobos L, Rodríguez-Lajusticia L, Rafael S, Sanz-Casla MT, Casado A, Sastre J, Arroyo M, Díaz-Rubio E. Circulating tumoral cells lack circadian-rhythm in hospitalized metastasic breast cancer patients. Clin Transl Oncol 2007; 8:826-9. [PMID: 17134972 DOI: 10.1007/s12094-006-0139-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND The relationship between breast cancer and circadian rhythm variation has been extensively studied. Increased breast tumorigenesis has been reported in melatonin-suppressed experimental models and in observational studies. OBJECTIVES Circulating Tumor Cells (CTC) circadian- rhythm may optimize the timing of therapies. This is a prospective experimental study to ascertain the day-time and night-time CTC levels in hospitalized metastasic breast cancer (MBC) patients. MATERIAL AND METHODS CTC are isolated and enumerated from a 08:00 AM and 08:00 PM blood collections. 23 MBC and 23 healthy volunteers entered the study. 69 samples were collected (23 samples at 08:00 AM and 23 samples at 08:00 PM from MBC; 23 samples from healthy volunteers). Results from two patients were rejected due to sample processing errors. No CTC were isolated from healthy-volunteers. RESULTS AND DISCUSSION No-differences between daytime and night-time CTC were observed. Therefore, we could not ascertain CTC circadian-rhythm in hospitalized metastasic breast cancer patients.
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Mills PR, Tomkins SC, Schlangen LJM. The effect of high correlated colour temperature office lighting on employee wellbeing and work performance. J Circadian Rhythms 2007; 5:2. [PMID: 17217543 PMCID: PMC1779263 DOI: 10.1186/1740-3391-5-2] [Citation(s) in RCA: 217] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2006] [Accepted: 01/11/2007] [Indexed: 01/22/2023] Open
Abstract
Background The effects of lighting on the human circadian system are well-established. The recent discovery of 'non-visual' retinal receptors has confirmed an anatomical basis for the non-image forming, biological effects of light and has stimulated interest in the use of light to enhance wellbeing in the corporate setting. Methods A prospective controlled intervention study was conducted within a shift-working call centre to investigate the effect of newly developed fluorescent light sources with a high correlated colour temperature (17000 K) upon the wellbeing, functioning and work performance of employees. Five items of the SF-36 questionnaire and a modification of the Columbia Jet Lag scale, were used to evaluate employees on two different floors of the call centre between February and May 2005. Questionnaire completion occurred at baseline and after a three month intervention period, during which time one floor was exposed to new high correlated colour temperature lighting and the other remained exposed to usual office lighting. Two sided t-tests with Bonferroni correction for type I errors were used to compare the characteristics of the two groups at baseline and to evaluate changes in the intervention and control groups over the period of the study. Results Individuals in the intervention arm of the study showed a significant improvement in self-reported ability to concentrate at study end as compared to those within the control arm (p < 0.05). The mean individual score on a 5 point Likert scale improved by 36.8% in the intervention group, compared with only 1.7% in the control group. The majority of this improvement occurred within the first 7 weeks of the 14 week study. Substantial within group improvements were observed in the intervention group in the areas of fatigue (26.9%), alertness (28.2%), daytime sleepiness (31%) and work performance (19.4%), as assessed by the modified Columbia Scale, and in the areas of vitality (28.4%) and mental health (13.9%), as assessed by the SF-36 over the study period. Conclusion High correlated colour temperature fluorescent lights could provide a useful intervention to improve wellbeing and productivity in the corporate setting, although further work is necessary in quantifying the magnitude of likely benefits.
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Affiliation(s)
- Peter R Mills
- Vielife Ltd, 68 Lombard Street, London EC3V 9LJ, UK
- Department of Respiratory Medicine, The Whittington Hospital, London N19 5NF, UK
| | | | - Luc JM Schlangen
- Philips Lighting, Global Organisation Applications Lighting, P.O. Box 80020, 5600JM Eindhoven, The Netherlands
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Higgins PA, Winkelman C, Lipson AR, Guo SE, Rodgers J. Light measurement in the hospital: A comparison of two methods. Res Nurs Health 2007; 30:120-8. [PMID: 17243121 DOI: 10.1002/nur.20167] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Disrupted sleep in hospitalized patients is widely reported, and ambient environmental lighting may be both a contributor to and a modifier of sleep/wake patterns. This is the first study to examine the congruence between two types of light meters, a wrist-worn device and a stand-alone device, and their respective light intensity measurements. The study sample included 20 light trials in 17 patients for a total of 480 paired light measurements. Descriptive data analysis indicated that both light meters dependably recorded changes in light levels, and Bland Altman plots demonstrated congruence between data from the two types of light meters. The results provide promising data on how to measure patient exposure to ambient light dependably in the continuously changing and unpredictable clinical setting.
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Affiliation(s)
- Patricia A Higgins
- Frances Payne Bolton School of Nursing, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH, USA
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Yun AJ, Lee PY, Bazar KA. Paradoxical strategy for treating chronic diseases where the therapeutic effect is derived from compensatory response rather than drug effect. Med Hypotheses 2005; 64:1050-9. [PMID: 15780510 DOI: 10.1016/j.mehy.2004.09.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2004] [Accepted: 09/17/2004] [Indexed: 11/29/2022]
Abstract
Reversing chronic conditions remains an elusive goal of medicine. The modern medical paradigm based on blocking overactive pathways or augmenting deficient pathways offers symptomatic benefit, but tolerance to therapy can develop and treatment cessation can produce rebound symptoms due to compensatory mechanisms. We propose a paradoxical strategy for treating chronic conditions based on harnessing compensatory mechanisms for therapeutic benefit. Many current drugs may be repurposed for a paradoxical indication where the therapeutic effect is derived from compensatory response, rather than drug effect. For example, although exercise is associated with acute adrenergia, paradoxical downregulation of baseline sympathovagal ratio occurs as a remodeling response. For conditions that manifest chronic sympathetic bias such as cardiovascular diseases, judicious administration of adrenergic agonists may induce compensatory downregulation of baseline sympathovagal ratio. The concept may generalize to many other diseases, especially those involving pathways which exhibit strong homeostatic tendencies such as the neurologic, immune, and endocrine systems. Careful consideration of chronobiologic features is necessary to optimize dosing strategies for modulating compensatory responses, and eccentric dosing schedules, shorter-acting formulations, or pulsatile delivery may be desirable in some cases. To what extent the effect of desensitization to current therapy is mistaken for disease progression in conditions such as diabetes, myopia, depression, and hypertension warrants investigation. The merits of combining behavioral and drug therapies such as diet-insulin therapy for diabetes and exercise-beta-blockade for cardiovascular disease should be revisited since there is a risk for exacerbating the underlying dysfunction. The reduced dynamic range of various environmental experiences and the tendency to revert to the mean through medical intervention, thermoregulation, and other modern lifestyle changes may play under-recognized roles in human diseases. Perhaps alternating agonists and antagonist may exercise the entire dynamic range of pathways and improve health.
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Affiliation(s)
- Anthony J Yun
- Department of Radiology, Stanford University, 470 University Avenue, Palo Alto, CA 94301, USA.
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Schweitzer M, Gilpin L, Frampton S. Healing Spaces: Elements of Environmental Design That Make an Impact on Health. J Altern Complement Med 2004. [DOI: 10.1089/acm.2004.10.s-71] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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