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Bodnar D, Brown NJ, Mitchell G, Hughes JA, Lourensen D, Hawkins T, Chu K. Determinants of fatigue in emergency department clinicians who wear personal protective equipment. Emerg Med Australas 2024; 36:39-46. [PMID: 37581206 DOI: 10.1111/1742-6723.14291] [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: 10/27/2022] [Revised: 06/23/2023] [Accepted: 07/23/2023] [Indexed: 08/16/2023]
Abstract
OBJECTIVE To determine the independent predictors for clinician fatigue and decline in cognitive function following a shift in the ED during early stages of the COVID-19 pandemic. METHODS This was a prospective, quasi-experimental study conducted in a metropolitan adult tertiary-referral hospital ED over 20 weeks in 2021. The participants were ED doctors and nurses working clinical shifts in an ED isolation area or high-risk zone (HRZ) with stringent personal protective equipment (PPE). The participants' objective and subjective fatigue was measured by the Samn-Perelli fatigue score and a psychomotor vigilance 'smart game' score, respectively. Postural signs/symptoms and urine specific gravity (SG) were measured as markers of dehydration. RESULTS Sixty-three participants provided data for 263 shifts. Median (interquartile range) age was 33 (28-38) years, 73% were female. Worsening fatigue score was associated with working afternoon shifts (afternoon vs day, adjusted odds ratio [aOR] 5.16 [95% confidence interval (CI) 1.32-20.02]) and in non-HRZ locations (HRZ vs non-HRZ, aOR 0.23 [95% CI 0.06-0.87]). Worsening cognitive function (game score) was associated with new onset postural symptoms (new vs no symptoms, aOR 4.14 [95% CI 1.34-12.51]) and afternoon shifts (afternoon vs day, aOR 3.13 [95% CI 1.16-8.44]). Working in the HRZ was not associated with declining cognitive function. Thirty-four (37%) of the 92 participants had an end of shift urine SG >1.030. CONCLUSION Working afternoon shifts was associated with fatigue. There was no association between HRZ allocation and fatigue, but our study was limited by a low COVID workload and fluctuating PPE requirements in the non-HRZs. Workplace interventions that target the prevention of fatigue in ED clinicians working afternoon shifts should be prioritised.
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Affiliation(s)
- Daniel Bodnar
- Emergency and Trauma Centre, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
- Queensland Ambulance Service, Brisbane, Queensland, Australia
| | - Nathan J Brown
- Emergency and Trauma Centre, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Gary Mitchell
- Emergency and Trauma Centre, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - James A Hughes
- Emergency and Trauma Centre, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
- School of Nursing, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Darren Lourensen
- Emergency and Trauma Centre, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Tracey Hawkins
- Emergency and Trauma Centre, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Kevin Chu
- Emergency and Trauma Centre, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
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Joshi A, Sundar IK. Circadian Disruption in Night Shift Work and Its Association with Chronic Pulmonary Diseases. Adv Biol (Weinh) 2023; 7:e2200292. [PMID: 36797209 DOI: 10.1002/adbi.202200292] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/08/2022] [Indexed: 02/18/2023]
Abstract
Globalization and the expansion of essential services over continuous 24 h cycles have necessitated the adaptation of the human workforce to shift-based schedules. Night shift work (NSW) causes a state of desynchrony between the internal circadian machinery and external environmental cues, which can impact inflammatory and metabolic pathways. The discovery of clock genes in the lung has shed light on potential mechanisms of circadian misalignment in chronic pulmonary disease. Here, the current knowledge of circadian clock disruption caused by NSW and its impact on lung inflammation and associated pathophysiology in chronic lung diseases, such as asthma, chronic obstructive pulmonary disease, pulmonary fibrosis, and COVID-19, is reviewed. Furthermore, the limitations of the current understanding of circadian disruption and potential future chronotherapeutic advances are discussed.
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Affiliation(s)
- Amey Joshi
- Department of Internal Medicine, Manipal Hospitals, Bangalore, Karnataka, 560066, India
| | - Isaac Kirubakaran Sundar
- Department of Internal Medicine, Division of Pulmonary Critical Care and Sleep Medicine, University of Kansas Medical Center, 3901 Rainbow Boulevard, Kansas City, KS, 66160, USA
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Conway-Jones R, Dunlop E, Kyle S, Ray D, Roberts N, Farmer A. A scoping review of the evidence for the impact of pharmacological and non-pharmacological interventions on shift work related sleep disturbance in an occupational setting. Wellcome Open Res 2023; 6:198. [PMID: 37346814 PMCID: PMC10280030 DOI: 10.12688/wellcomeopenres.17002.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2022] [Indexed: 08/17/2023] Open
Abstract
Background: Shift work is essential in society but can be detrimental to health and quality of life and is associated with decreased productivity and increased risk of accidents. Interventions to reduce these consequences are needed, but the extent and range of trial evidence for interventions for those most affected by their shift-work schedules is unclear. We therefore carried out a scoping review to assess the availability of evidence to inform the development and evaluation of future interventions. Methods: We aimed to identify clinical trials of any intervention for shift work-related sleep disturbance that included a comparator group, where the intervention was delivered in an occupational setting. We searched Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, CINAHL, EMBASE, Medline and Science Citation Index from inception to 30 th March 2020 for relevant citations. Citations were screened by two independent reviewers, a third reviewer resolved disagreements. Data were extracted by two independent reviewers. Results: From 1250 unique citations, 14 studies met inclusion criteria for comparative trials of treatment in an occupational setting. There were five trials of hypnotics, five trials of stimulants, and four trials of non-pharmacological therapies (cognitive behavioural therapy, light therapy, aromatherapy and herbal medicine). Outcomes included sleep parameters, day-time sleepiness, and quality of life. There were no consistently reported outcomes across trials. Conclusions: Interventions fell into three distinct groups investigated in distinct time periods without progression from efficacy trials to wider-scale interventions. The lack of consistent patient-reported outcome measures limits synthesising findings. Some trials focussed on optimising sleep, others on reducing wake-time sleepiness. Adequately powered trials of existing interventions are needed, with the development and testing of novel combination treatments in patients with well-defined shift work sleep disorder. A core set of clinically relevant outcomes will develop and standardise the evidence-base for shift work sleep disorder.
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Affiliation(s)
| | - Ella Dunlop
- Medical Science Division, University of Oxford, Oxford, UK
| | - Simon Kyle
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - David Ray
- NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, Oxford, UK
| | - Nia Roberts
- The Bodleian Libraries, University of Oxford, Oxford, UK
| | - Andrew Farmer
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
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4
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Gómez-Durán EL, Forero CG, Martin-Fumadó C. On-call-related sleep deprivation and hypomania in healthcare workers. Sleep Med 2022; 99:30-33. [DOI: 10.1016/j.sleep.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/16/2022] [Accepted: 07/06/2022] [Indexed: 10/31/2022]
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Hebl JT, Velasco J, McHill AW. Work Around the Clock: How Work Hours Induce Social Jetlag and Sleep Deficiency. Clin Chest Med 2022; 43:249-259. [PMID: 35659023 DOI: 10.1016/j.ccm.2022.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A growing body of evidence has placed an increasing emphasis on how sleep affects health. Not only does insufficient sleep make one subjectively feel worse, but is associated with chronic diseases that are considered epidemics in industrialized nations. This is partly caused by the growing need for prolonged work and social schedules, exemplified by shift work, late-night weekends, and early morning work/school start times (social jetlag). Here, we consider fundamental relationships between the circadian clock and biologic processes and discuss how common practices, such as shift work and social jetlag, contribute to sleep disruption, circadian misalignment, and adverse health outcomes.
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Affiliation(s)
- Joseph T Hebl
- Oregon Health and Sciences University, School of Medicine, 3455 SW US Veterans Hospital Road, Mailcode: SN-ORD, Portland, OR 97239, USA
| | - Josie Velasco
- Sleep, Chronobiology, and Health Laboratory, School of Nursing, Oregon Health & Science University, 3455 SW US Veterans Hospital Road, Mailcode: SN-ORD, Portland, OR 97239, USA; Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, 3455 SW US Veterans Hospital Road, Mailcode: SN-ORD, Portland, OR 97239, USA
| | - Andrew W McHill
- Sleep, Chronobiology, and Health Laboratory, School of Nursing, Oregon Health & Science University, 3455 SW US Veterans Hospital Road, Mailcode: SN-ORD, Portland, OR 97239, USA; Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, 3455 SW US Veterans Hospital Road, Mailcode: SN-ORD, Portland, OR 97239, USA.
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Conway-Jones R, Dunlop E, Kyle S, Ray D, Roberts N, Farmer A. A scoping review of the evidence for the impact of pharmacological and non-pharmacological interventions on shift work related sleep disturbance in an occupational setting. Wellcome Open Res 2021. [DOI: 10.12688/wellcomeopenres.17002.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Shift work is essential in society but can be detrimental to health and quality of life and is associated with decreased productivity and increased risk of accidents. Interventions to reduce these consequences are needed, but the extent and range of trial evidence for interventions for those most affected by their shift-work schedules is unclear. We therefore carried out a scoping review to assess the availability of evidence to inform the development and evaluation of future interventions. Methods: We aimed to identify clinical trials of any intervention for shift work-related sleep disturbance that included a comparator group, where the intervention was delivered in an occupational setting. We searched Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, CINAHL, EMBASE, Medline and Science Citation Index from inception to 30th March 2020 for relevant citations. Citations were screened by two independent reviewers, a third reviewer resolved disagreements. Data were extracted by two independent reviewers. Results: From 1250 unique citations, 14 studies met inclusion criteria for comparative trials of treatment in an occupational setting. There were five trials of hypnotics, five trials of stimulants, and four trials of non-pharmacological therapies (cognitive behavioural therapy, light therapy, aromatherapy and herbal medicine). Outcomes included sleep parameters, day-time sleepiness, and quality of life. There were no consistently reported outcomes across trials. Conclusions: Interventions fell into three distinct groups investigated in distinct time periods without progression from efficacy trials to wider-scale interventions. The lack of consistent patient-reported outcome measures limits synthesising findings. Some trials focussed on optimising sleep, others on reducing wake-time sleepiness. Adequately powered trials of existing interventions are needed, with the development and testing of novel combination treatments in patients with well-defined shift work sleep disorder. A core set of clinically relevant outcomes will develop and standardise the evidence-base for shift work sleep disorder.
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Schmied EA, Harrison EM, Dell'Acqua RG, Perez VG, Glickman G, Hurtado SL. A Qualitative Examination of Factors That Influence Sleep Among Shipboard Sailors. Mil Med 2021; 186:e160-e168. [PMID: 33516158 DOI: 10.1093/milmed/usaa321] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/01/2020] [Accepted: 08/20/2020] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Sleep disturbance is prevalent among service members; however, little is known about factors that compromise sleep in unique operational environments, such as naval ships. Given the importance of sleep to health and performance, it is critical to identify both causes and potential solutions to this serious issue. The objective of this qualitative study was to elucidate the barriers to sleep and the strategies service members use to improve their sleep and combat fatigue while living and working aboard ships (i.e., underway). METHODS AND MATERIALS Interviews were conducted with 22 active duty service members assigned to sea duty. The semi-structured interview guide assessed the experiences of service members sleeping in shipboard environments. Interview transcripts were analyzed using applied thematic content analysis by two independent coders. RESULTS Participants were largely male (77.8%) and enlisted (88.9%). The most common barrier to obtaining sufficient sleep was stress, followed by rotating schedules, and environmental factors (e.g., noise and light). Additionally, many participants reported prioritizing other activities over sleep when off duty. Many participants did not report using any specific strategies to improve their sleep while underway. Among those who did, most described mitigating environmental barriers (e.g., noise-cancelling headphones or sleep masks). However, some participants also acknowledged these strategies are not always feasible, either attributable to cost or because sailors must be able to respond to alarms or commands. Notably, few sailors reported using stress mitigation or relaxation strategies to help sleep. Ingesting caffeine was the only strategy sailors reported using to alert themselves while fatigued. CONCLUSIONS Service members reported many unique barriers to sleep in the shipboard environment, yet many did not report the use of strategies to mitigate them. Further, few used alerting techniques when fatigued. This at-risk population could benefit from targeted educational interventions on sleep-promoting behaviors, prioritization of sleep, and fatigue mitigation.
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Affiliation(s)
- Emily A Schmied
- Leidos, San Diego, CA 92106, USA.,Department of Health and Behavioral Sciences, Naval Health Research Center, San Diego, CA 92106, USA.,School of Public Health, San Diego State University, San Diego, CA 92182, USA
| | - Elizabeth M Harrison
- Leidos, San Diego, CA 92106, USA.,Department of Health and Behavioral Sciences, Naval Health Research Center, San Diego, CA 92106, USA.,Center for Circadian Biology, University of California San Diego, CA 92093, USA
| | - Renee G Dell'Acqua
- Leidos, San Diego, CA 92106, USA.,Department of Health and Behavioral Sciences, Naval Health Research Center, San Diego, CA 92106, USA
| | - Vanessa G Perez
- Leidos, San Diego, CA 92106, USA.,Department of Health and Behavioral Sciences, Naval Health Research Center, San Diego, CA 92106, USA
| | - Gena Glickman
- Department of Psychiatry and Neuroscience, Uniformed Services University, Bethesda, MD 20814, USA.,Center for Circadian Biology, University of California San Diego, CA 92093, USA
| | - Suzanne L Hurtado
- Department of Health and Behavioral Sciences, Naval Health Research Center, San Diego, CA 92106, USA
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