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Ou W, Tao C, Zhang Y, Gan M, Xie Y, Wu Y, Zheng X, Shu B, Duan G, Xu F. Effects of postoperative environmental noise on surgery induced pain: Evidence based on a prospective observational study. Gen Hosp Psychiatry 2024; 88:61-67. [PMID: 38508077 DOI: 10.1016/j.genhosppsych.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 03/22/2024]
Abstract
CONTEXT Many patients recovering from surgery in wards are disturbed by environmental noise. However, the effects of environmental noise on postoperative pain are unclear. OBJECTIVES This study aimed to assess the association between postoperative noise and pain. METHODS This prospective study included 182 women who underwent cesarean sections. Postoperative noise was continuously recorded, and pain intensity at rest was assessed using a numerical rating scale (NRS) for 0-6, 6-12, 12-18, and 18-24 h after the patients were returned to the ward. Cumulative pain scores were calculated by summing the NRS scores at each time point and comprised the primary outcome. The maximum pain NRS score and analgesic consumption during the 24 h after surgery were also recorded. RESULTS Mean environmental noise intensity during the daytime was an independent factor for cumulative pain scores, maximum pain scores, and analgesic use during the first postoperative 24 h (β, 0.37; 95% CI, 0.21-0.53 and β, 0.12; 95% CI, 0.07-0.17; P < 0.001 for both; β, 0.86; 95% CI, 0.25-1.46; P = 0.006). Cumulative and maximum NRS pain scores as well as the incidence of NRS ≥ 4 were significantly higher in patients under mean daytime environmental noise of ≥58, than <58 decibels (dB) (8.0 [6.0-11.3] vs. 6.0 (5.0-7.0); 3.0 [2.0-4.0] vs. 2.0 [2.0-2.0, and 25.6% vs. 11.0%; RR, 2.32; 95% CI, 1.19-4.54, respectively; P < 0.001 for all). CONCLUSIONS Higher-level postoperative noise exposure was associated with more severe postoperative pain and increased analgesic needs, as well as a higher incidence of moderate-to-severe pain in patients recovering from cesarean delivery. Our findings indicate that reducing environmental ward noise might benefit for postoperative pain management.
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Affiliation(s)
- Wenjun Ou
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Chengkun Tao
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yang Zhang
- Department of Gynaecology and Obstetrics, Linshui Branch of The Second Affiliated Hospital of Chongqing Medical University, Sichuan, China
| | - Min Gan
- Department of Gynaecology and Obstetrics, Linshui Branch of The Second Affiliated Hospital of Chongqing Medical University, Sichuan, China
| | - Yan Xie
- Department of Gynaecology and Obstetrics, Linshui Branch of The Second Affiliated Hospital of Chongqing Medical University, Sichuan, China
| | - Yingcai Wu
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xuemei Zheng
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Bin Shu
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Guangyou Duan
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
| | - Fang Xu
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
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Jonescu EE, Farrel B, Ramanayaka CE, White C, Costanzo G, Delaney L, Hahn R, Ferrier J, Litton E. Mitigating Intensive Care Unit Noise: Design-Led Modeling Solutions, Calculated Acoustic Outcomes, and Cost Implications. HERD-HEALTH ENVIRONMENTS RESEARCH & DESIGN JOURNAL 2024:19375867241237501. [PMID: 38512990 DOI: 10.1177/19375867241237501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
OBJECTIVES, PURPOSE, OR AIM The study aimed to decrease noise levels in the ICU, anticipated to have adverse effects on both patients and staff, by implementing enhancements in acoustic design. BACKGROUND Recognizing ICU noise as a significant disruptor of sleep and a potential hindrance to patient recovery, this study was conducted at a 40-bed ICU in Fiona Stanley Hospital in Perth, Australia. METHODS A comprehensive mixed-methods approach was employed, encompassing surveys, site analysis, and acoustic measurements. Survey data highlighted the importance of patient sleep quality, emphasizing the negative impact of noise on work performance, patient connection, and job satisfaction. Room acoustics analysis revealed noise levels ranging from 60 to 90 dB(A) in the presence of patients, surpassing sleep disruption criteria. RESULTS Utilizing an iterative 3D design modeling process, the study simulated significant acoustic treatment upgrades. The design integrated effective acoustic treatments within patient rooms, aiming to reduce noise levels and minimize transmission to adjacent areas. Rigorous evaluation using industry-standard acoustic software highlights the design's efficacy in reducing noise transmission in particular. Additionally, cost implications were examined, comparing standard ICU construction with acoustically treated options for new construction and refurbishment projects. CONCLUSIONS This study provides valuable insights into design-based solutions for addressing noise-related challenges in the ICU. While the focus is on improving the acoustic environment by reducing noise levels and minimizing transmission to adjacent areas. It is important to clarify that direct measurements of patient outcomes were not conducted. The potential impact of these solutions on health outcomes, particularly sleep quality, remains a crucial aspect for consideration.
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Affiliation(s)
- Emil E Jonescu
- Hames Sharley, Perth, Western Australia, Australia
- School of Arts and Humanities, Edith Cowan University, Perth, Western Australia, Australia
| | - Benjamin Farrel
- Gabriels Hearn Farrell Pty Ltd, South Perth, Western Australia, Australia
| | - Chamil Erik Ramanayaka
- Central Queensland University, School of Engineering and Technology, Brisbane, Queensland, Australia
| | | | | | - Lori Delaney
- School of Nursing, Midwifery and Social Work, University of Queensland, St Lucia, Brisbane, Queensland, Australia
- College of Medicine and Health Sciences, Australian National University, Acton, Canberra, Australia
| | - Rebecca Hahn
- Heart and Lung Research Institute of WA, Harry Perkins Institute of Medical Research, Murdoch, Western Australia, Australia
- School of Health and Medical Science, Surgery, University of Western Australia, Crawley, Western Australia, Australia
- Cardiothoracic and Transplant Surgery Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Janet Ferrier
- Intensive Care Unit, St. John of God Hospital, Subiaco, Western Australia, Australia
- ANZSCTS National Cardiac Surgery Data Base, St John of God Hospital, Perth Western Australia
| | - Edward Litton
- Intensive Care Unit, St. John of God Hospital, Subiaco, Western Australia, Australia
- Intensive Care Unit, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
- School of Medicine, University of Western Australia, Crawley, Western Australia, Australia
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Armbruster C, Walzer S, Witek S, Ziegler S, Farin-Glattacker E. Noise exposure among staff in intensive care units and the effects of unit-based noise management: a monocentric prospective longitudinal study. BMC Nurs 2023; 22:460. [PMID: 38057790 DOI: 10.1186/s12912-023-01611-3] [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: 05/26/2023] [Accepted: 11/17/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND Intensive care units (ICUs) are often too noisy, exceeding 70-80 dBA, which can have negative effects on staff. The corresponding recommendation of the World Health Organization (average sound pressure level below 35 dBA) is often not achieved. To date there is a lack of intervention studies examining the extent to which unit-based noise management in ICUs contributes to a reduction in noise exposure for the staff. The study therefore aims to provide answers to 1) how unit-based noise management sustainably reduces the subjective noise exposure among staff, and 2) how this intervention affects other noise-related topics. METHODS We performed a monocentric prospective longitudinal study with three measurement points in a German university hospital in three ICUs. We collected data from different healthcare professionals and other professional groups between October 2021 and August 2022 using an online questionnaire. Data were analyzed using descriptive and inference statistics. RESULTS A total of n = 179 participants took part in the surveys. The majority of participants were nurses or pediatric nurses. Most participants worked more than 75% full-time equivalent. Staff on the three ICUs reported high levels of noise exposure. No significant changes in noise exposure over time were observed. Participants were already aware of the topic and believed that a behavior change could positively influence the noise environment. CONCLUSIONS This study provides an initial insight into how a unit-based noise management could contribute to a reduction in the subjective noise exposure among staff in ICUs. The results of this study highlight the importance of this topic. Future studies should aim to research aspects of adherence and their facilitators or barriers, which promote the sustained implementation of noise-reducing measures by staff. TRIAL REGISTRATION German Clinical Trials Register (DRKS): DRKS00025835; Date of registration: 12.08.2021.
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Affiliation(s)
- Christoph Armbruster
- Institute of Medical Biometry and Statistics (IMBI), Section of Health Care Research and Rehabilitation Research (SEVERA), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, 79106, Germany.
| | - Stefan Walzer
- Faculty of Health, Safety and Society, Care and Technology Lab, Furtwangen University, 78120, Furtwangen, Germany
| | - Sandra Witek
- Center of Implementing Nursing Care Innovations Freiburg, Medical Center - University of Freiburg, 79106, Freiburg, Germany
| | - Sven Ziegler
- Center of Implementing Nursing Care Innovations Freiburg, Medical Center - University of Freiburg, 79106, Freiburg, Germany
| | - Erik Farin-Glattacker
- Institute of Medical Biometry and Statistics (IMBI), Section of Health Care Research and Rehabilitation Research (SEVERA), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, 79106, Germany
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Tronstad O, Flaws D, Patterson S, Holdsworth R, Garcia-Hansen V, Rodriguez Leonard F, Ong R, Yerkovich S, Fraser JF. Evaluation of the sensory environment in a large tertiary ICU. Crit Care 2023; 27:461. [PMID: 38012768 PMCID: PMC10683296 DOI: 10.1186/s13054-023-04744-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/18/2023] [Indexed: 11/29/2023] Open
Abstract
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 between bedspaces with and without windows. Average sound levels in the study bedspaces were 63.75, 56.80, and 59.71 dBA, with the single room being noisier than the two open-plan bedspaces. There were multiple occasions of peak sound levels > 80 dBA recorded, with the maximum sound level recorded being > 105 dBA. We recorded one new monitor or ventilator alarm commencing every 69 s in each bedspace, with only 5% of alarms actioned. Acoustic testing showed poor sound absorption and blocking. CONCLUSIONS This study corroborates other studies confirming that the lighting and acoustic environments in the study ICU were suboptimal, potentially contributing to adverse patient outcomes. This manuscript discusses potential solutions to identified problems. Future studies are required to evaluate whether an optimised ICU environment positively impacts patient outcomes.
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Affiliation(s)
- Oystein Tronstad
- Critical Care Research Group, Level 3 Clinical Sciences Building, The Prince Charles Hospital, Rode Road, Chermside, QLD, 4032, Australia.
- Faculty of Medicine, University of Queensland, Brisbane, Australia.
- Physiotherapy Department, The Prince Charles Hospital, Brisbane, Australia.
| | - Dylan Flaws
- Critical Care Research Group, Level 3 Clinical Sciences Building, The Prince Charles Hospital, Rode Road, Chermside, QLD, 4032, Australia
- Department of Mental Health, Metro North Mental Health, Caboolture Hospital, Caboolture, Australia
- School of Clinical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Sue Patterson
- Critical Care Research Group, Level 3 Clinical Sciences Building, The Prince Charles Hospital, Rode Road, Chermside, QLD, 4032, Australia
- School of Dentistry, University of Queensland, Brisbane, Australia
| | - Robert Holdsworth
- Critical Care Research Group, Level 3 Clinical Sciences Building, The Prince Charles Hospital, Rode Road, Chermside, QLD, 4032, Australia
| | - Veronica Garcia-Hansen
- School of Architecture and Built Environment, Faculty of Engineering, Queensland University of Technology, Brisbane, Australia
| | - Francisca Rodriguez Leonard
- School of Architecture and Built Environment, Faculty of Engineering, Queensland University of Technology, Brisbane, Australia
| | - Ruth Ong
- School of Architecture and Built Environment, Faculty of Engineering, Queensland University of Technology, Brisbane, Australia
| | - Stephanie Yerkovich
- Menzies School of Health Research and Faculty of Health, Queensland University of Technology, Brisbane, Australia
| | - John F Fraser
- Critical Care Research Group, Level 3 Clinical Sciences Building, The Prince Charles Hospital, Rode Road, Chermside, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
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Naef AC, Knobel SEJ, Ruettgers N, Rossier M, Jeitziner MM, Zante B, Müri RM, Schefold JC, Nef T, Gerber SM. Characterization of sound pressure levels and sound sources in the intensive care unit: a 1 week observational study. Front Med (Lausanne) 2023; 10:1219257. [PMID: 37521352 PMCID: PMC10382019 DOI: 10.3389/fmed.2023.1219257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 06/13/2023] [Indexed: 08/01/2023] Open
Abstract
Background Exposure to elevated sound pressure levels within the intensive care unit is known to negatively affect patient and staff health. In the past, interventions to address this problem have been unsuccessful as there is no conclusive evidence on the severity of each sound source and their role on the overall sound pressure levels. Therefore, the goal of the study was to perform a continuous 1 week recording to characterize the sound pressure levels and identify negative sound sources in this setting. Methods In this prospective, systematic, and quantitative observational study, the sound pressure levels and sound sources were continuously recorded in a mixed medical-surgical intensive care unit over 1 week. Measurements were conducted using four sound level meters and a human observer present in the room noting all sound sources arising from two beds. Results The mean 8 h sound pressure level was significantly higher during the day (52.01 ± 1.75 dBA) and evening (50.92 ± 1.66 dBA) shifts than during the night shift (47.57 ± 2.23; F(2, 19) = 11.80, p < 0.001). No significant difference was found in the maximum and minimum mean 8 h sound pressure levels between the work shifts. However, there was a significant difference between the two beds in the based on location during the day (F(3, 28) = 3.91, p = 0.0189) and evening (F(3, 24) = 5.66, p = 0.00445) shifts. Cleaning of the patient area, admission and discharge activities, and renal interventions (e.g., dialysis) contributed the most to the overall sound pressure levels, with staff talking occurring most frequently. Conclusion Our study was able to identify that continuous maintenance of the patient area, patient admission and discharge, and renal interventions were responsible for the greatest contribution to the sound pressure levels. Moreover, while staff talking was not found to significantly contribute to the sound pressure levels, it was found to be the most frequently occurring activity which may indirectly influence patient wellbeing. Overall, identifying these sound sources can have a meaningful impact on patients and staff by identifying targets for future interventions, thus leading to a healthier environment.
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Affiliation(s)
- Aileen C. Naef
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse, Bern, Switzerland
| | - Samuel E. J. Knobel
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse, Bern, Switzerland
| | - Nicole Ruettgers
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse, Bern, Switzerland
| | - Marilyne Rossier
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse, Bern, Switzerland
| | - Marie-Madlen Jeitziner
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, Bern, Switzerland
- Institute of Nursing Science (INS), Department of Public Health (DPH), Faculty of Medicine, University of Basel, Bernoullistrasse, Basel, Switzerland
| | - Bjoern Zante
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, Bern, Switzerland
| | - René M. Müri
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse, Bern, Switzerland
- Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, Bern, Switzerland
| | - Joerg C. Schefold
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, Bern, Switzerland
| | - Tobias Nef
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse, Bern, Switzerland
- Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, Bern, Switzerland
| | - Stephan M. Gerber
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse, Bern, Switzerland
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Ruettgers N, Naef AC, Rossier M, Knobel SEJ, Jeitziner MM, Grosse Holtforth M, Zante B, Schefold JC, Nef T, Gerber SM. Perceived sounds and their reported level of disturbance in intensive care units: A multinational survey among healthcare professionals. PLoS One 2022; 17:e0279603. [PMID: 36584079 PMCID: PMC9803129 DOI: 10.1371/journal.pone.0279603] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 12/09/2022] [Indexed: 12/31/2022] Open
Abstract
PURPOSE The noise levels in intensive care units have been repeatedly reported to exceed the recommended guidelines and yield negative health outcomes among healthcare professionals. However, it is unclear which sound sources within this environment are perceived as disturbing. Therefore, this study aimed to evaluate how healthcare professionals in Germany, Switzerland, and Austria perceive the sound levels and the associated sound sources within their work environment and explore sound reduction strategies. MATERIAL AND METHODS An online survey was conducted among 350 healthcare professionals working in intensive care units. The survey consisted of items on demographic and hospital data and questions about the perception of the sound levels [1 (strongly disagree) to 5 (strongly agree)], disturbance from sound sources [1 (not disturbing at all) to 5 (very disturbing)], and implementation potential, feasibility, and motivation to reduce sound reduction measures [1 (not high at all) to 5 (very high)]. RESULTS Approximately 69.3% of the healthcare professionals perceived the sound levels in the ICUs as too high. Short-lasting human sounds (e.g. moans or laughs) [mean (M) ± standard deviation (SD) = 3.30 ± 0.81], devices and alarms (M ± SD = 2.67 ± 0.59), and short-lasting object sounds (M ± SD = 2.55 ± 0.68) were perceived as the most disturbing sounds. Reducing medical equipment alarms was considered to have greater implementation potential [M ± SD = 3.62 ± 0.92, t(334) = -7.30, p < 0.001], feasibility [M ± SD = 3.19 ± 0.93, t(334) = -11.02, p < 0.001], and motivation [M ± SD = 3.85 ± 0.89, t(334) = -10.10, p < 0.001] for reducing the sound levels. CONCLUSION This study showed that healthcare professionals perceive short-lasting human sounds as most disturbing and rated reducing medical equipment alarms as the best approach to reduce the sound levels in terms of potential, feasibility, and motivation for implementation.
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Affiliation(s)
- Nicole Ruettgers
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Aileen C. Naef
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Marilyne Rossier
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Samuel E. J. Knobel
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Marie-Madlen Jeitziner
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Institute of Nursing Science (INS), Department of Public Health (DPH), Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Martin Grosse Holtforth
- Psychosomatic Medicine, Department of Neurology, Bern University Hospital, University of Bern, Bern, Switzerland
- Department of Clinical Psychology and Psychotherapy, University of Bern, Bern, Switzerland
| | - Bjoern Zante
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Joerg C. Schefold
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Tobias Nef
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
- Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Stephan M. Gerber
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
- * E-mail:
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Grigg-Damberger MM, Hussein O, Kulik T. Sleep Spindles and K-Complexes Are Favorable Prognostic Biomarkers in Critically Ill Patients. J Clin Neurophysiol 2022; 39:372-382. [PMID: 35239561 DOI: 10.1097/wnp.0000000000000830] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
SUMMARY In this narrative review, we summarize recent research on the prognostic significance of biomarkers of sleep in continuous EEG and polysomnographic recordings in intensive care unit patients. Recent studies show the EEG biosignatures of non-rapid eye movement 2 sleep (sleep spindles and K-complexes) on continuous EEG in critically ill patients better predict functional outcomes and mortality than the ictal-interictal continuum patterns. Emergence of more complex and better organized sleep architecture has been shown to parallel neurocognitive recovery and correlate with functional outcomes in traumatic brain injury and strokes. Particularly interesting are studies which suggest intravenous dexmedetomidine may induce a more biomimetic non-rapid eye movement sleep state than intravenous propofol, potentially providing more restorative sleep and lessening delirium. Protocols to improve intensive care unit sleep and neurophysiological studies evaluating the effect of these on sleep and sleep architecture are here reviewed.
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Naef AC, Knobel SEJ, Ruettgers N, Jeitziner MM, Holtforth MG, Zante B, Schefold JC, Nef T, Gerber SM. Methods for Measuring and Identifying Sounds in the Intensive Care Unit. Front Med (Lausanne) 2022; 9:836203. [PMID: 35733869 PMCID: PMC9207602 DOI: 10.3389/fmed.2022.836203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 04/29/2022] [Indexed: 11/13/2022] Open
Abstract
Background Despite many studies in the field examining excessive noise in the intensive care unit, this issue remains an ongoing problem. A limiting factor in the progress of the field is the inability to draw conclusions across studies due to the different and poorly reported approaches used. Therefore, the first goal is to present a method for the general measurement of sound pressure levels and sound sources, with precise details and reasoning, such that future studies can use these procedures as a guideline. The two procedures used in the general method will outline how to record sound pressure levels and sound sources, using sound level meters and observers, respectively. The second goal is to present the data collected using the applied method to show the feasibility of the general method and provide results for future reference. Methods The general method proposes the use of two different procedures for measuring sound pressure levels and sound sources in the intensive care unit. The applied method uses the general method to collect data recorded over 24-h, examining two beds in a four-bed room, via four sound level meters and four observers each working one at a time. Results The interrater reliability of the different categories was found to have an estimate of >0.75 representing good and excellent estimates, for 19 and 16 of the 24 categories, for the two beds examined. The equivalent sound pressure levels (LAeq) for the day, evening, and night shift, as an average of the sound level meters in the patient room, were 54.12, 53.37, and 49.05 dBA. In the 24-h measurement period, talking and human generated sounds occurred for a total of 495 (39.29% of the time) and 470 min (37.30% of the time), at the two beds of interest, respectively. Conclusion A general method was described detailing two independent procedures for measuring sound pressure levels and sound sources in the ICU. In a continuous data recording over 24 h, the feasibility of the proposed general method was confirmed. Moreover, good and excellent interrater reliability was achieved in most categories, making them suitable for future studies.
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Affiliation(s)
- Aileen C. Naef
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Samuel E. J. Knobel
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Nicole Ruettgers
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Marie-Madlen Jeitziner
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Institute of Nursing Science (INS), Department of Public Health (DPH), Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Martin grosse Holtforth
- Department of Clinical Psychology and Psychotherapy, University of Bern, Bern, Switzerland
- Psychosomatic Medicine, Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Bjoern Zante
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Joerg C. Schefold
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Tobias Nef
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
- Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Stephan M. Gerber
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
- *Correspondence: Stephan M. Gerber
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Morales-Cané I, Moral-Arroyo JA, Debbia F, Guler I, Llamas-Recio F, Jiménez-Pastor JM, de la Cruz López-Carrasco J, Acuña-Castroviejo D, Rodríguez-Borrego MA, López-Soto PJ. Impact of sound levels on physiological and consciousness state of cardiovascular patients. Nurs Crit Care 2022; 27:240-250. [PMID: 35052015 DOI: 10.1111/nicc.12746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 12/04/2021] [Accepted: 12/11/2021] [Indexed: 01/14/2023]
Abstract
BACKGROUND Patients treated in intensive care units (ICUs) experience life-threatening medical conditions but some external factors in ICUs do not help or even adversely affect and complicate their evolution. Among others, such factors include noise pollution due to alarms and medical clinical equipment, as well as the activities of the health care personnel themselves. AIM This study aimed to evaluate the influence of elevated sound levels on physiological variables and the consciousness state of patients treated in a cardiovascular area in an ICU. DESIGN A longitudinal study with several observations was carried out during 1 month in the cardiovascular area of an ICU of a third-level hospital in southern Spain. METHODS Sound levels were monitored in different work shifts and patients' physiological data and consciousness status were recorded. Generalized additive mixed models (GAMMs) were developed to detect the variability of the sound levels together with the vital parameters of the patients in the ICU. RESULTS Thirty-eight patients were included. The mean sound level was 54.09 dBA. The GAMM sound levels analysis showed a significant increase in sound levels from 4:30 p.m. to 8:00 p.m. (1.83 dBA; P < .001) and 8:00 p.m. to 11:30 p.m. (3.06 dBA; P < .001). An increase in heart rate (3.66 bpm; P < .001), respiratory rate (2.62 rpm; P < .001) and the Glasgow Coma Scale (0.50 units; P = .002) was detected during the 4:30 p.m.-8:30 p.m. PERIOD CONCLUSIONS Elevated sound levels in cardiovascular ICUs seem to influence positively the physiological and consciousness status of patients. Given the importance of the findings for patient safety, future intervention studies are recommended. RELEVANCE TO CLINICAL PRACTICE The finding of this study could translate into structural changes in ICU facilities, as well as the development of clinical practice guidelines that influence the behaviour of health care professionals.
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Affiliation(s)
- Ignacio Morales-Cané
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Juan Antonio Moral-Arroyo
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Fabio Debbia
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
| | - Ipek Guler
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
| | - Francisca Llamas-Recio
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - José Manuel Jiménez-Pastor
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Juan de la Cruz López-Carrasco
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Darío Acuña-Castroviejo
- Department of Physiology, Faculty of Medicine, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
| | - María Aurora Rodríguez-Borrego
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Pablo Jesús López-Soto
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
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Theuerkauf NU, Putensen C, Schewe JC. [Noise Reduction on the ICU]. Anasthesiol Intensivmed Notfallmed Schmerzther 2022; 57:14-26. [PMID: 35021237 DOI: 10.1055/a-1477-2300] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Noise pollution in the intensive care unit is not only an omnipresent but also a considerable problem, both for patients and healthcare staff. There are a number of significant sources of noise that are at least partially responsible for the frequent and serious sleep disorders of intensive care unit patients. This has a negative impact on the recovery of intensive care patients and favours the occurrence of delirium, which can be associated with increased overall mortality. This article provides a summary of the current evidence on the occurrence of noise-associated consequences and possible options for reducing noise exposure in the intensive care unit and offers perspectives for improving treatment of intensive care patients.
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11
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Davies F. (Not) Surviving the Night. ETHNOLOGIES 2022. [DOI: 10.7202/1096066ar] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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12
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Warjri E, Dsilva F, Sanal TS, Kumar A. Impact of a white noise app on sleep quality among critically ill patients. Nurs Crit Care 2021; 27:815-823. [PMID: 34931413 DOI: 10.1111/nicc.12742] [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: 07/06/2021] [Revised: 11/24/2021] [Accepted: 12/01/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Sleep disturbance negatively affects recovery and survival of patients in intensive care units (ICUs). AIMS AND OBJECTIVES This study aimed to measure the noise levels and evaluate the impact of a white noise app on the sleep quality of critically ill patients. DESIGN A quasi-experimental time series pre-test-post-test control group design with repeated measures was adopted. METHODS The study was conducted in the high dependency unit (HDU) of a selected tertiary care hospital in Mangalore, Karnataka State, India. Conscious oriented patients with systolic blood pressure ranging from 100/70 to 140/90 mm Hg and hearing acuity of at most 20 dB in both ears were included in the study. Noise levels in the HDU were measured using calibrated sound level meter on weekdays/weekends in three different shifts and an average of 24 readings was obtained per shift. A 4-point Likert scale was used to assess the sleep quality. The intervention included administration of white noise app twice a day, for three consecutive days by using different masking sounds such as white noise on day 1 which resembles to a humming AC conditioner, pink noise on day 2 which resembles to the sound of ocean waves and brown noise on day 3 which resembles a steady rainfall. The app was used with the help of JBL earphones C10SI an excellent noise cancellation and noise isolating earphone. RESULTS Among the 54 subjects, the mean age of the patients was 40.28 years, majority 34 (63%) were males. The noise level in the ICU was more than 60 dB. There was a significant difference in the sleep quality after the application of the white noise app in the experimental group on Day 1 (Z = -3.996; P = .001), Day 2 (Z = -3.302; P = .001), and Day 3 (-2.822; P = .005) compared to the control group. CONCLUSION Adoption of technology driven noise reduction applications would enhance the quality of sleep among the ICU patients. RELEVANCE TO CLINICAL PRACTICE The use of a technology-driven application helps control noise levels which promotes improved sleep quality among critically ill patients in the intensive care units.
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Affiliation(s)
- Evansaralin Warjri
- Nitte Usha Institute of Nursing Sciences, NITTE (Deemed to be University), Paneer Derlakatte, India
| | - Fatima Dsilva
- Nitte Usha Institute of Nursing Sciences, NITTE (Deemed to be University), Paneer Derlakatte, India
| | - Thankappan S Sanal
- Department of Biostatistics and Research, Jothydev's Diabetes and Research Centre, Trivandrum, India
| | - Abhishek Kumar
- Information Technology and Services, MasterCard, Pune, India
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13
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Lin YC, Lin TJ, Liu CH, Chen YT, Lai HL. Effects of an earplug placement intervention on sleep quality in patients in a medical intensive care unit: A randomized controlled trial. Int J Nurs Pract 2021; 28:e13016. [PMID: 34541752 DOI: 10.1111/ijn.13016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/26/2021] [Accepted: 08/28/2021] [Indexed: 11/28/2022]
Abstract
AIMS This study aimed to evaluate the effects of an intervention involving earplug placement during nocturnal sleep in non-ventilated intensive care unit patients. METHODS A randomized controlled trial was conducted in 107 adult patients between January 2017 and December 2018. Participants in the intervention group (n = 55) slept with earplugs between 10 pm and 7 am on the second night of their intensive care unit stay. In the control group, participants slept with no earplugs. Outcome parameters included sleep, urinary 6-sulfatoxymelatonin levels, relaxation responses measured using the Richards-Campbell Sleep Questionnaire, liquid chromatography-mass spectrometry results and vital signs. Urine was collected between 10 pm and 7 am. RESULTS Overall, 28.03% of participants showed virtually no 6-sulfatoxymelatonin excretion in the collected urine. Outcome parameters were not significantly different between the groups, indicating that wearing earplugs alone did not affect sleep quality, urinary 6-sulfatoxymelatonin and vital signs. CONCLUSIONS The effects of using earplugs alone on sleep quality, urinary 6-sulfatoxymelatonin and relaxation responses in patients admitted to the intensive care unit were inconclusive. Additional research is required before earplugs alone can be widely used to improve sleep quality.
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Affiliation(s)
- Yun-Chian Lin
- Department of Nursing Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Tsung-Jen Lin
- Program in Pharmacology and Toxicology, School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Chin-Hung Liu
- Program in Pharmacology and Toxicology, School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Yi-Ting Chen
- Department of Internal Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Hui-Ling Lai
- Department of Nursing, Tzu Chi University, Hualien, Taiwan
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14
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Wong C, Ho J, Ankravs MJ, Sharrock L, Kee K, Goldin J, MacIsaac C, Presneill JJ, Ali Abdelhamid Y, Deane AM. Administration of pharmacological sleep aids prior to, during and following critical illness. Intern Med J 2021; 52:1962-1970. [PMID: 34392601 DOI: 10.1111/imj.15492] [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: 03/03/2021] [Revised: 06/22/2021] [Accepted: 08/01/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Sleep in the intensive care unit (ICU) is frequently disturbed and this may have a detrimental effect on recovery. AIMS To determine use of pharmacological sleep aids in critically ill patients prior to, during and after ICU admission. METHODS We conducted a single-centre period prevalence study of all adult patients admitted to a university-associated adult medical-surgical Intensive Care Unit (ICU) for more than two nights in a three-month period ending September 2019. The major outcome of interest was the proportion of ICU patients who had a pharmacological sleep aid administered prior to, during and after ICU admission. Associations of selected patient variables with sleep aid prescription in the ICU were summarized both as unadjusted univariable comparisons, and as adjusted effect estimates returned by a multivariable logistic regression model. RESULTS During the study period, 370 patients met all eligibility criteria. A pharmacological sleep aid was identified prior to hospital admission in 34 patients (9%) and in 62 patients (17%) during ICU admission. Of the 340 ICU survivors, 292 remained in the same hospital. Of these, 96 (33%) received a pharmacological sleep aid at least once during their post-ICU general hospital ward stay. Pre-hospital sleep aid use, male sex, longer ICU admission and higher APACHE III scores were associated with sleep aid prescription in the ICU. CONCLUSIONS Pharmacological sleep aids are administered frequently in the ICU with administration increasing substantially after ICU discharge. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Cliff Wong
- Intensive Care Unit, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Jankin Ho
- Intensive Care Unit, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Melissa J Ankravs
- The University of Melbourne, Melbourne Medical School, Department of Medicine and Radiology, Royal Melbourne Hospital, Parkville, Victoria.,Intensive Care Unit, Royal Melbourne Hospital, Parkville, Victoria.,Pharmacy Department, Royal Melbourne, United States
| | - Lucy Sharrock
- Intensive Care Unit, Royal Melbourne Hospital, Parkville, Victoria.,Pharmacy Department, Royal Melbourne Hospital, Parkville, Victoria
| | - Kirk Kee
- Department of Respiratory and Sleep Medicine, Royal Melbourne Hospital, Parkville, Victoria
| | - Jeremy Goldin
- The University of Melbourne, Melbourne Medical School, Department of Medicine and Radiology, Royal Melbourne Hospital, Parkville, Victoria.,Department of Respiratory and Sleep Medicine, Royal Melbourne Hospital, Parkville, Victoria
| | - Christopher MacIsaac
- The University of Melbourne, Melbourne Medical School, Department of Medicine and Radiology, Royal Melbourne Hospital, Parkville, Victoria.,Intensive Care Unit, Royal Melbourne Hospital, Parkville, Victoria
| | - Jeffrey J Presneill
- Intensive Care Unit, Royal Melbourne Hospital, Parkville, Victoria.,Department of Medicine, University of Melbourne, Parkville, Victoria
| | - Yasmine Ali Abdelhamid
- Intensive Care Unit, Royal Melbourne Hospital, Parkville, Victoria.,Centre for Integrated Critical Care, University of Melbourne, Parkville, Victoria
| | - Adam M Deane
- Intensive Care Unit, Royal Melbourne Hospital, Parkville, Victoria.,The University of Melbourne, Melbourne Medical School, Department of Critical Care, Parkville, Victoria
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15
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Conducive environments reduce sleep disturbances and improve sleep quality: a quality improvement project. JBI Evid Implement 2021; 19:105-117. [PMID: 33570338 DOI: 10.1097/xeb.0000000000000265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM The current implementation project aimed to improve patients' sleep quality in a hospital by implementing targeted interventions to reduce sleep disturbances. METHODS The Silent Night project was implemented in two general units of an academic tertiary hospital. The project comprised three phases: preimplementation, implementation, and postimplementation. Patient surveys were administered to obtain patients' perspectives on the sources of noise disturbances at night. Noise-monitoring machines were installed in two wards to obtain objective data on noise levels at night. Concurrently, data were collected on noise-generating activities that were observed. RESULTS The overall quality of sleep reported by patients improved by 17% (from 73.5 to 88.9%). Patients' survey reported reduced noise disturbances from direct care activities, environmental noise and medical equipment alarms. The mean noise level in the orthopedics unit reduced significantly from 57.04 to 55.22 dB with a corresponding decrease in noise generating activities by 60% (from 362 to 144). In the geriatric unit, the mean noise level increased from 51.36 to 53.12 dB but is within the National Environmental Agency's permissible noise level of 55 dB even though the noise generating activities reduced significantly by 92.2% (from 954 to 74). CONCLUSION The 'Silent Night' project has successfully reduced noise disturbances generating from environment and nursing care activities and improved patients' sleep quality in the hospital. Sharing sessions regarding sources of noise and the 'Silent Night' poster promoted the awareness of noise disturbances in healthcare professionals, visitors, and patients.
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16
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The Nexus Between Sleep Disturbance and Delirium Among Intensive Care Patients. Crit Care Nurs Clin North Am 2021; 33:155-171. [PMID: 34023083 DOI: 10.1016/j.cnc.2021.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Sleep in intensive care is hampered due to many factors; the clinical environment itself exacerbates sleep disturbance. Research suggests that interventions aimed at improving sleep quality have produced positive effects in reducing incidences and duration of delirium. Sleep disturbance is well documented among intensive care patients; however, its prognostic impact is not fully understood. Delirium, disproportionally prevalent among intensive care patients, has significant prognostic factors related to patient outcomes, in which sleep disturbance often is present. The relationship between sleep disturbance and delirium is complex, sharing commonalities in relation to neurobiological and neurohormonal alterations, which may contribute to a bidirectional relationship.
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17
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The Impact of Earplugs and Eye Masks on Sleep Quality in Surgical ICU Patients at Risk for Frequent Awakenings. Crit Care Med 2021; 49:e822-e832. [PMID: 33870919 DOI: 10.1097/ccm.0000000000005031] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Sleep disturbances may contribute to the development of delirium, prolonged ICU stay, and increased mortality. There is conflicting data on the effectiveness of earplugs and eye masks for sleep promotion in the ICU. This study evaluates the impact of earplugs and eye masks on sleep quality in postoperative surgical ICU patients at risk for frequent awakenings. DESIGN Prospective randomized controlled trial. SETTING Surgical ICU within the University of Texas Southwestern Medical Center. PATIENTS Adult, female patients admitted to the surgical ICU requiring hourly postoperative assessments following breast free flap surgery between February 2018 and October 2019. INTERVENTIONS Patients were randomized into an intervention group or a control group. The intervention group received earplugs and eye masks in addition to standard postoperative care, whereas the control group received standard postoperative care. MEASUREMENTS AND MAIN RESULTS The primary outcome was overall sleep quality assessed via the Richards-Campbell Sleep Questionnaire. Secondary outcomes of patient satisfaction and rates of ICU delirium were assessed with a modified version of the Family Satisfaction in the ICU survey and the Confusion Assessment Method for the ICU. After a planned interim analysis, the study was stopped early because prespecified criteria for significance were attained. Compared with the control group's average Richards-Campbell Sleep Questionnaire total score of 47.3 (95% CI, 40.8-53.8), the intervention group's average Richards-Campbell Sleep Questionnaire total score was significantly higher at 64.5 (95% CI, 58.3-70.7; p = 0.0007). There were no significant between-group differences for Confusion Assessment Method for the ICU scores or modified Family Satisfaction in the ICU survey scores. CONCLUSIONS These results suggest that earplugs and eye masks are effective in improving sleep quality in ICU patients undergoing frequent assessments. The results strengthen the evidence for nonpharmacologic sleep-promoting adjuncts in the ICU.
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18
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Boots R, Mead G, Rawashdeh O, Bellapart J, Townsend S, Paratz J, Garner N, Clement P, Oddy D. Circadian Hygiene in the ICU Environment (CHIE) study. CRIT CARE RESUSC 2020; 22:361-369. [PMID: 38046884 PMCID: PMC10692571 DOI: 10.51893/2020.4.oa9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective: To investigate the environment and care in the intensive care unit (ICU) and its relationship to patient circadian temperature disruption. Design: 30-day, prospective period prevalence study. Setting: 27-bed tertiary ICU. Participants: Patients expected to remain in the ICU for at least 24 hours. Main outcome measures: Temperature, relative humidity, light and sound intensity in the ICU; nursing interventions (using the Therapeutic Intervention Scoring System-28); and core body temperature of ICU patients. Results: Of 28 patients surveyed, 20 (71%) were mechanically ventilated. Median (interquartile range [IQR]) light intensity peaked at 07:00 at 165 (12-1218) lux with a trough at 23:00 of 15 (12-51) lux and was consistently < 100 lux between 21:00 and 06:00. Peak median (IQR) sound intensity was at 07:00 (62.55 [57.87-68.03] dB) while 58.84 (54.81-64.71) dB at 02:00. Ambient temperature and humidity varied with median (IQR) peaks of 23.11°C (22.74-23.31°C) at 16:00 and 44.07% (32.76-51.08%) at 11:00 and median troughs of 22.37°C (21.79-22.88°C) at 05:00 and 39.95% (31.53-47.95%) at 14:00, respectively. Disturbances to sleep during the night occurred due to care activities including linen changes (15 patients, 54%) and bathing (13, 46%). On the day before and the day of the study, 13 patients (47%) and 10 patients (36%), respectively, had a circadian rhythm on core body temperature without an association with illness severity, nursing intervention or environmental measures. Conclusions: The ICU has low light intensity with relative humidity and ambient temperature not aligned to normal human circadian timing. Noise levels are commonly equivalent to conversational speech while patient care procedures interrupt overnight sleep. The contribution of these factors to disrupted CBT rhythmicity is unclear.
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Affiliation(s)
- Rob Boots
- Thoracic Medicine, Royal Brisbane and Women’s Hospital, Brisbane, QLD, Australia
- Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, QLD, Australia
| | - Gabrielle Mead
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Oliver Rawashdeh
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Judith Bellapart
- Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, QLD, Australia
- Department of Intensive Care Medicine, Royal Brisbane and Women’s Hospital, Brisbane, QLD, Australia
| | - Shane Townsend
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
- Department of Intensive Care Medicine, Royal Brisbane and Women’s Hospital, Brisbane, QLD, Australia
| | - Jenny Paratz
- Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, QLD, Australia
- School of Allied Health, Griffith University, Brisbane, QLD, Australia
| | - Nicholas Garner
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Pierre Clement
- Department of Intensive Care Medicine, Royal Brisbane and Women’s Hospital, Brisbane, QLD, Australia
| | - David Oddy
- Department of Intensive Care Medicine, Royal Brisbane and Women’s Hospital, Brisbane, QLD, Australia
| | - On behalf of the Circadian Investigators in Critical Illness
- Thoracic Medicine, Royal Brisbane and Women’s Hospital, Brisbane, QLD, Australia
- Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, QLD, Australia
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
- Department of Intensive Care Medicine, Royal Brisbane and Women’s Hospital, Brisbane, QLD, Australia
- School of Allied Health, Griffith University, Brisbane, QLD, Australia
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19
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Schmidt N, Gerber SM, Zante B, Gawliczek T, Chesham A, Gutbrod K, Müri RM, Nef T, Schefold JC, Jeitziner MM. Effects of intensive care unit ambient sounds on healthcare professionals: results of an online survey and noise exposure in an experimental setting. Intensive Care Med Exp 2020; 8:34. [PMID: 32705428 PMCID: PMC7376325 DOI: 10.1186/s40635-020-00321-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 07/03/2020] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Noise levels on intensive care units (ICUs) are typically elevated. While many studies reported negative effects of ICU ambient sounds on patients, only few investigated noise as a factor to influence well-being or performance in healthcare professionals. METHODS An online survey in the German-speaking part of Switzerland was conducted to assess how ICU soundscapes are subjectively perceived by healthcare professionals. The questionnaire was answered by 348 participants. Additionally, effects of noise on working memory performance were evaluated in an experimental noise exposure setting. Twenty-six healthcare professionals and 27 healthy controls performed a 2-back object-location task while being exposed to either ICU or pink noise. RESULTS Survey results demonstrate that a majority of participants was aware of heightened noise levels. Participants reported that mostly well-being, performance, and attention could be reduced, along with subjective annoyance and fatigue by ICU ambient sounds. Although no significant effects of noise exposure on working memory performance was observed, self-assessments revealed significantly higher stress levels, increased annoyance and distraction ratings as well as decreased confidence in performance after ICU-noise exposure. CONCLUSION Subjective assessments indicate that heightened noise levels on ICUs induce annoyance, with heightened stress levels, impaired well-being, and reduced performance being potential consequences. Empirical evidence with objective and physiological measures is warranted.
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Affiliation(s)
- Nadine Schmidt
- Gerontechnology & Rehabilitation Group, University of Bern, Murtenstrasse 50, CH-3008, Bern, Switzerland
| | - Stephan M Gerber
- Gerontechnology & Rehabilitation Group, University of Bern, Murtenstrasse 50, CH-3008, Bern, Switzerland
| | - Björn Zante
- Department of Intensive Care Medicine, University Hospital Bern (Inselspital), University of Bern, CH-3010, Bern, Switzerland
| | - Tom Gawliczek
- Hearing Research Laboratory, University of Bern, Murtenstrasse 50, CH-3008, Bern, Switzerland
| | - Alvin Chesham
- Gerontechnology & Rehabilitation Group, University of Bern, Murtenstrasse 50, CH-3008, Bern, Switzerland
| | - Klemens Gutbrod
- Department of Neurology, University Neurorehabilitation, University Hospital Bern (Inselspital), University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - René M Müri
- Gerontechnology & Rehabilitation Group, University of Bern, Murtenstrasse 50, CH-3008, Bern, Switzerland
- Department of Neurology, University Neurorehabilitation, University Hospital Bern (Inselspital), University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Tobias Nef
- Gerontechnology & Rehabilitation Group, University of Bern, Murtenstrasse 50, CH-3008, Bern, Switzerland.
- ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, CH-3008, Bern, Switzerland.
| | - Joerg C Schefold
- Department of Intensive Care Medicine, University Hospital Bern (Inselspital), University of Bern, CH-3010, Bern, Switzerland
| | - Marie-Madlen Jeitziner
- Department of Intensive Care Medicine, University Hospital Bern (Inselspital), University of Bern, CH-3010, Bern, Switzerland
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20
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Reply to: effectiveness of a visual noise warning system on noise levels in a surgical ICU. Eur J Anaesthesiol 2020; 37:63-64. [PMID: 31794538 DOI: 10.1097/eja.0000000000001122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Loewy J. Music Therapy as a Potential Intervention for Sleep Improvement. Nat Sci Sleep 2020; 12:1-9. [PMID: 32021519 PMCID: PMC6954684 DOI: 10.2147/nss.s194938] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/05/2019] [Indexed: 11/23/2022] Open
Abstract
Sleep deficiency is linked to chronic health problems, such as heart disease, kidney disease, high blood pressure, diabetes, stroke, obesity, and depression. Healthcare practitioners are increasingly paying close attention to sleep and its impact on health and wellness as a measure of critical vitality. Sleep's impact on neurologic function, and cognitive endurance affect capacity throughout the lifespan. This article will address recent findings related to the potential of music to induce sleep in illness and wellness. Music therapy research findings and its efficacy as a potent cost-effective intervention will be highlighted.
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Affiliation(s)
- Joanne Loewy
- The Louis Armstrong Center for Music and Medicine, Mount Sinai Beth Israel, New York, NY 10003, USA
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Wallis R, Harris E, Lee H, Davies W, Astin F. Environmental noise levels in hospital settings: A rapid review of measurement techniques and implementation in hospital settings. Noise Health 2019; 21:200-216. [PMID: 32820743 PMCID: PMC7650850 DOI: 10.4103/nah.nah_19_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 12/31/2019] [Accepted: 01/16/2020] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Hospitals provide treatment to improve patient health and well-being but the characteristics of the care environment receive little attention. Excessive noise at night has a negative impact on in-patient health through disturbed sleep. To address this hospital staff must measure night-time environmental noise levels. Therefore, an understanding of environmental noise measurement techniques is required. In this review, we aim to 1) provide a technical overview of factors to consider when measuring environmental noise in hospital settings; 2) conduct a rapid review on the equipment and approaches used to objectively measured noise in hospitals and identify methodological limitations. DESIGN : A rapid review of original research articles, from three databases, published since 2008. Studies were included if noise levels were objectively measured in a hospital setting where patients were receiving treatment. RESULTS 1429 articles were identified with 76 included in the review. There was significant variability in the approaches used to measure environmental noise in hospitals. Only 14.5% of studies contained sufficient information to support replication of the measurement process. Most studies measured noise levels using a sound level meter positioned closed to a patient's bed area in an intensive care unit. CONCLUSION : Unwanted environmental noise in hospital setting impacts negatively on patient and staff health and well-being. However, this literature review found that the approaches used to objectively measure noise level in hospital settings have been inconsistent and poorly reported. Recommendations on best-practice methods to measure noise levels in hospital environments are provided.
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Affiliation(s)
- Rory Wallis
- Applied Psychoacoustics Laboratory, University of Huddersfield, Huddersfield, HD1 3DH, United Kingdom
| | - Emma Harris
- Centre for Applied Research in Health, University of Huddersfield, Huddersfield, HD1 3DH, United Kingdom
| | - Hyunkook Lee
- Applied Psychoacoustics Laboratory, University of Huddersfield, Huddersfield, HD1 3DH, United Kingdom
| | - William Davies
- Acoustics Research Centre, University of Salford, Salford, M5 4WT, United Kingdom
| | - Felicity Astin
- Centre for Applied Research in Health, University of Huddersfield, Huddersfield, HD1 3DH, United Kingdom
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Quality Improvement Initiative to Reduce Nighttime Noise in a Transplantation and Cellular Therapy Unit. Biol Blood Marrow Transplant 2019; 25:1844-1850. [DOI: 10.1016/j.bbmt.2019.05.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 05/01/2019] [Accepted: 05/01/2019] [Indexed: 01/08/2023]
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Abstract
PURPOSE OF REVIEW Excessive noise has direct adverse physiological and psychological effects, and may also have indirect negative health consequences by reducing sleep quality and quantity. This review presents a synthesis of the epidemiology of noise in the ICU, and the potential interventions designed to attenuate noise and protect patients. RECENT FINDINGS Noise increases cortisol release, oxygen consumption, and vasoconstriction. ICU noise levels are excessive throughout the 24-h cycle, irrespective of level of intervention or whether the patient is in a side room or open ward. Direct measurement suggests that noise is a substantial contributor to poor sleep quantity and quality in the ICU and is frequently recalled by survivors of critical illness as a negative experience of ICU admission. Noise abatement, environmental masking and pharmacological interventions may all reduce the impact of noise on patients. However, the sustainability of behavioural interventions remains uncertain and high-quality evidence demonstrating the benefit of any intervention on patient-centered outcomes is lacking. SUMMARY Noise levels in the ICU are consistently reported to reach levels likely to have both direct and indirect adverse health consequences for both patients and staff. Noise reduction, abating the transmission of noise and pharmacological modulation of the adverse neural effects of noise are all potentially beneficial strategies, although definitive evidence of improved patient-centered outcomes is lacking.
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Delaney LJ, Currie MJ, Huang HCC, Litton E, Wibrow B, Lopez V, Haren FV. Investigating the application of motion accelerometers as a sleep monitoring technique and the clinical burden of the intensive care environment on sleep quality: study protocol for a prospective observational study in Australia. BMJ Open 2018; 8:e019704. [PMID: 29358448 PMCID: PMC5781106 DOI: 10.1136/bmjopen-2017-019704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Sleep is a state of quiescence that facilitates the significant restorative processes that enhance individuals' physiological and psychological well-being. Patients admitted to the intensive care unit (ICU) experience substantial sleep disturbance. Despite the biological importance of sleep, sleep monitoring does not form part of standard clinical care for critically ill patients. There exists an unmet need to assess the feasibility and accuracy of a range of sleep assessment techniques that have the potential to allow widespread implementation of sleep monitoring in the ICU. KEY MEASURES The coprimary outcome measures of this study are to: determine the accuracy and feasibility of motion accelerometer monitoring (ie, actigraphy) and subjective assessments of sleep (nursing-based observations and patient self-reports) to the gold standard of sleep monitoring (ie, polysomnography) in evaluating sleep continuity and disturbance. The secondary outcome measures of the study will include: (1) the association between sleep disturbance and environmental factors (eg, noise, light and clinical interactions) and (2) to describe the sleep architecture of intensive care patients. METHODS AND ANALYSIS A prospective, single centre observational design with a within subjects' assessment of sleep monitoring techniques. The sample will comprise 80 adults (aged 18 years or more) inclusive of ventilated and non-ventilated patients, admitted to a tertiary ICU with a Richmond Agitation-Sedation Scale score between +2 (agitated) and -3 (moderate sedation) and an anticipated length of stay >24 hours. Patients' sleep quality, total sleep time and sleep fragmentations will be continuously monitored for 24 hours using polysomnography and actigraphy. Behavioural assessments (nursing observations) and patients' self-reports of sleep quality will be assessed during the 24-hour period using the Richards-Campbell Sleep Questionnaire, subjective sleepiness evaluated via the Karolinska Sleepiness Scale, along with a prehospital discharge survey regarding patients' perception of sleep quality and disturbing factors using the Little Sleep Questionnaire will be undertaken. Associations between sleep disturbance, noise and light levels, and the frequency of clinical interactions will also be investigated. Sound and luminance levels will be recorded at 1 s epochs via Extech SDL600 and SDL400 monitoring devices. Clinical interactions will be logged via the electronic patient record system Metavision which documents patient monitoring and clinical care. ETHICS AND DISSEMINATION The relevant institutions have approved the study protocol and consent procedures. The findings of the study will contribute to the understanding of sleep disturbance, and the ability to implement sleep monitoring methods within ICUs. Understanding the contribution of a clinical environment on sleep disturbance may provide insight into the need to address clinical environmental issues that may positively influence patient outcomes, and could dispel notions that the environment is a primary factor in sleep disturbance. The research findings will be disseminated via presentations at national and international conferences, proceedings and published articles in peer-reviewed journals. TRIAL REGISTRATION NUMBER ACTRN12615000945527; Pre-results.
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Affiliation(s)
- Lori J Delaney
- Faculty of Nursing, University of Canberra, Canberra, Australia
- College of Health and Medicine; Australian National University, Canberra, Australia
| | - Marian J Currie
- Faculty of Nursing, University of Canberra, Canberra, Australia
| | - Hsin-Chia Carol Huang
- College of Health and Medicine; Australian National University, Canberra, Australia
- Chronic Diseases Management and Respiratory and Sleep Medicine, Canberra Hospital, Canberra, Australia
| | - Edward Litton
- Intensive Care Unit, St John of God Subiaco Hospital, Perth, Australia
| | - Bradley Wibrow
- Intensive Care Medicine, Sir Charles Gairdner Hospital, Nedlands, Australia
| | - Violeta Lopez
- Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, Singapore, Singapore
| | - Frank Van Haren
- Intensive Care Unit, Canberra Hospital, Canberra, Australia
- University of Canberra, Australian National University, Canberra, Australia
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Iyendo TO. Sound as a supportive design intervention for improving health care experience in the clinical ecosystem: A qualitative study. Complement Ther Clin Pract 2017; 29:58-96. [PMID: 29122270 DOI: 10.1016/j.ctcp.2017.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 08/17/2017] [Accepted: 08/22/2017] [Indexed: 11/30/2022]
Abstract
PURPOSE Most prior hospital noise research usually deals with sound in its noise facet and is based merely on sound level abatement, rather than as an informative or orientational element. This paper stimulates scientific research into the effect of sound interventions on physical and mental health care in the clinical environment. METHODS Data sources comprised relevant World Health Organization guidelines and the results of a literature search of ISI Web of Science, ProQuest Central, MEDLINE, PubMed, Scopus, JSTOR and Google Scholar. RESULTS Noise induces stress and impedes the recovery process. Pleasant natural sound intervention which includes singing birds, gentle wind and ocean waves, revealed benefits that contribute to perceived restoration of attention and stress recovery in patients and staff. CONCLUSIONS Clinicians should consider pleasant natural sounds perception as a low-risk non-pharmacological and unobtrusive intervention that should be implemented in their routine care for speedier recovery of patients undergoing medical procedures.
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