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Sharma B, Varma P, Jain K. Miles to go…. BJOG 2024; 131:869. [PMID: 36541289 DOI: 10.1111/1471-0528.17360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/12/2022] [Indexed: 12/24/2022]
Affiliation(s)
- Bharti Sharma
- Department of Obstetrics & Gynaecology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Prerna Varma
- Department of Anaesthesia & Intensive Care, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kajal Jain
- Department of Anaesthesia & Intensive Care, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Meaklim H, Le F, Drummond SPA, Bains SK, Varma P, Junge MF, Jackson ML. Insomnia is more likely to persist than remit after a time of stress and uncertainty: a longitudinal cohort study examining trajectories and predictors of insomnia symptoms. Sleep 2024; 47:zsae028. [PMID: 38308584 PMCID: PMC11009016 DOI: 10.1093/sleep/zsae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/07/2023] [Indexed: 02/05/2024] Open
Abstract
STUDY OBJECTIVES The study aimed to characterize insomnia symptom trajectories over 12 months during a time of stress and uncertainty, the coronavirus disease 2019 (COVID-19) pandemic. It also aimed to investigate sleep and psychological predictors of persistent insomnia symptoms. METHODS This longitudinal cohort study comprised 2069 participants with and without insomnia symptoms during the first year of the pandemic. Participants completed online surveys investigating sleep, insomnia, and mental health at four timepoints over 12 months (April 2020-May 2021). Additional trait-level cognitive/psychological questionnaires were administered at 3 months only. RESULTS Six distinct classes of insomnia symptoms emerged: (1) severe persistent insomnia symptoms (21.65%), (2) moderate persistent insomnia symptoms (32.62%), (3) persistent good sleep (32.82%), (4) severe insomnia symptoms at baseline but remitting over time (2.27%), (5) moderate insomnia symptoms at baseline but remitting over time (7.78%), and (6) good sleep at baseline but deteriorating into insomnia symptoms over time (2.85%). Persistent insomnia trajectories were predicted by high levels of sleep reactivity, sleep effort, pre-sleep cognitive arousal, and depressive symptoms at baseline. A combination of high sleep reactivity and sleep effort reduced the odds of insomnia remitting. Higher sleep reactivity also predicted the deterioration of good sleep into insomnia symptoms over 12 months. Lastly, intolerance of uncertainty emerged as the only trait-level cognitive/psychological predictor of insomnia trajectory classes. CONCLUSIONS Insomnia was more likely to persist than remit over the first year of the COVID-19 pandemic. Addressing sleep reactivity and sleep effort appears critical for reducing insomnia persistence rates after times of stress and uncertainty.
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Affiliation(s)
- Hailey Meaklim
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, VIC, Australia
- Melbourne School of Psychological Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Flora Le
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Sean P A Drummond
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Sukhjit K Bains
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Prerna Varma
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Moira F Junge
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
- Sleep Health Foundation, East Melbourne, VIC, Australia
| | - Melinda L Jackson
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, VIC, Australia
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Quan SF, Weaver MD, Czeisler MÉ, Barger LK, Booker LA, Howard ME, Jackson ML, Lane RI, McDonald CF, Ridgers A, Robbins R, Varma P, Rajaratnam SMW, Czeisler CA. Association of Chronotype and Shiftwork with COVID-19 Infection. J Occup Environ Med 2024:00043764-990000000-00542. [PMID: 38595269 DOI: 10.1097/jom.0000000000003103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
OBJECTIVE This study assesses whether chronotype is related to COVID-19 infection and whether there is an interaction with shift work. METHODS Cross-sectional survey of 19,821 U.S. adults. RESULTS COVID-19 infection occurred in 40% of participants, 32.6% morning and 17.2% evening chronotypes. After adjusting for demographic and socioeconomic factors, shift/remote work, sleep duration and comorbidities, morning chronotype was associated with a higher (aOR: 1.15, 95% CI 1.10-1.21) and evening chronotype with a lower (aOR: 0.82, 95% CI: 0.78-0.87) prevalence of COVID-19 infection in comparison to an intermediate chronotype. Working exclusively night shifts was not associated with higher prevalence of COVID-19. Morning chronotype and working some evening shifts was associated with the highest prevalence of previous COVID-19 infection (aOR: 1.87, 95% CI: 1.28-2.74). CONCLUSION Morning chronotype and working a mixture of shifts increase risk of COVID-19 infection.
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Affiliation(s)
| | | | | | | | | | | | | | - Rashon I Lane
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
| | | | | | | | - Prerna Varma
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
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Quan SF, Weaver MD, Czeisler MÉ, Barger LK, Booker LA, Howard ME, Jackson ML, Lane RI, McDonald CF, Ridgers A, Robbins R, Varma P, Wiley JF, Rajaratnam SMW, Czeisler CA. Association of Obstructive Sleep Apnea with Post-Acute Sequelae of SARS-CoV-2 Infection. Am J Med 2024:S0002-9343(24)00109-8. [PMID: 38401674 DOI: 10.1016/j.amjmed.2024.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/09/2024] [Accepted: 02/11/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND Obstructive sleep apnea is associated with COVID-19 infection. Less clear is whether obstructive sleep apnea is a risk factor for the development of post-acute sequelae of SARS-CoV-2 infection (PASC). STUDY DESIGN Cross-sectional survey of a general population of 24,803 US adults to determine the association of obstructive sleep apnea with PASC. RESULTS COVID-19 infection occurred in 10,324 (41.6%) participants. Prevalence of persistent (>3 months post infection) putative PASC-related physical and mental health symptoms ranged from 6.5% (peripheral edema) to 19.6% (nervous/anxious). In logistic regression models, obstructive sleep apnea was associated with all putative PASC-related symptoms with the highest adjusted odds ratios being fever (2.053) and nervous/anxious (1.939). In 4 logistic regression models of overall PASC derived from elastic net regression, obstructive sleep apnea was associated with PASC (range of adjusted odds ratios: 1.934-2.071); this association was mitigated in those with treated obstructive sleep apnea. In the best fitting overall model requiring ≥3 symptoms, PASC prevalence was 21.9%. CONCLUSION In a general population sample, obstructive sleep apnea is associated with the development of PASC-related symptoms and a global definition of PASC. Treated obstructive sleep apnea mitigates the latter risk. The presence of 3 or more PASC symptoms may be useful in identifying cases and for future research.
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Affiliation(s)
- Stuart F Quan
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, Mass; Division of Sleep Medicine.
| | - Matthew D Weaver
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, Mass; Division of Sleep Medicine
| | - Mark É Czeisler
- Francis Weld Peabody Society, Harvard Medical School, Boston, Mass; School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Laura K Barger
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, Mass; Division of Sleep Medicine
| | - Lauren A Booker
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; University Department of Rural Health, La Trobe Rural Health School, La Trobe University, Bendigo, Victoria, Australia
| | - Mark E Howard
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia; Department of Medicine, The University of Melbourne, Victoria, Australia
| | - Melinda L Jackson
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Rashon I Lane
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, Mass
| | - Christine F McDonald
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; Department of Medicine, The University of Melbourne, Victoria, Australia; Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia; Faculty of Medicine, Monash University, Melbourne, Victoria, Australia
| | - Anna Ridgers
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; Department of Medicine, The University of Melbourne, Victoria, Australia; Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia
| | - Rebecca Robbins
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, Mass; Division of Sleep Medicine
| | - Prerna Varma
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Joshua F Wiley
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Shantha M W Rajaratnam
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, Mass; Division of Sleep Medicine; School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Charles A Czeisler
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, Mass; Division of Sleep Medicine
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Czeisler MÉ, Weaver MD, Robbins R, Barger LK, Varma P, Quan SF, Lane RI, Howard ME, Rajaratnam SMW, Czeisler CA. Sleep and mental health among unpaid caregivers of children, adults, and both: United States, 2022. Sleep Health 2024; 10:S201-S207. [PMID: 37770250 DOI: 10.1016/j.sleh.2023.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 07/02/2023] [Accepted: 08/21/2023] [Indexed: 09/30/2023]
Abstract
OBJECTIVES We sought to characterize sleep and mental health, and their relationship, among unpaid caregivers. METHODS During March through August 2022, four waves of cross-sectional surveys were administered to US adults using demographic quota sampling and weighting to improve representativeness of the US adult population. RESULTS Among 19,767 respondents, 6260 (31.7%) identified as serving one or more unpaid caregiving roles. Compared to people without caregiving roles, caregivers more commonly reported sleep duration outside the healthy range (7-9 hours), insomnia symptoms, diagnosed sleep disorders, and more commonly screened positive for anxiety, depression, and burnout symptoms. Multivariable analyses adjusted for demographics characteristics revealed unpaid caregivers had several-fold elevated odds of adverse mental health symptoms; associations were attenuated but remained significant after adjusting for impaired and nonoptimal sleep. CONCLUSIONS Both sleep and mental health challenges are disproportionately experienced by and commonly co-occur among unpaid caregivers, especially those who care for both children and adults. These populations, which serve critical societal roles, may benefit from enhanced support services to address sleep and mental health.
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Affiliation(s)
- Mark É Czeisler
- Francis Weld Peabody Society, Harvard Medical School, Boston, Massachusetts, USA; Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia.
| | - Matthew D Weaver
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia; Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Rebecca Robbins
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Laura K Barger
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Prerna Varma
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Stuart F Quan
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Rashon I Lane
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA; Sutter Health, Sacramento, California, USA
| | - Mark E Howard
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Shantha M W Rajaratnam
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Charles A Czeisler
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia; Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
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Reddy A, Varma P, Barik AK, Narayan V. Anesthetic challenges in a patient with Hirayama disease with quadriparesis and autonomic dysfunction undergoing cervical spine surgery. J Neurosci Rural Pract 2024; 15:137-139. [PMID: 38476430 PMCID: PMC10927038 DOI: 10.25259/jnrp_224_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/11/2023] [Indexed: 03/14/2024] Open
Abstract
Hirayama disease is a rare neurological disorder, characterized by muscular atrophy of the distal upper extremities. The occurrence of spastic quadriparesis and autonomic dysfunction is rarely reported and has important perioperative considerations during cervical spine surgery for the treatment of this disorder. The role of the anesthesiologist is vital in the thorough assessment of the patient for the involvement of the pyramidal tract, autonomic dysfunction, gastroparesis, hyperreactive airway disease, and documentation of neurological deficits. Intraoperative concerns include safe manipulation of the airway during mask ventilation and the use of a flexible fibreoptic bronchoscope during endotracheal intubation to prevent neck flexion. It is also essential to avoid drugs, leading to histamine release. The use of multimodal monitoring including bispectral index and neuromuscular monitoring is crucial to prevent delayed recovery. Anticipation and management of exaggerated hypotension in response to anesthetic induction agents and prone position is the key to a successful outcome in patients with autonomic dysfunction.
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Affiliation(s)
- Ashwini Reddy
- Department of Anesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Prerna Varma
- Department of Anesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amiya Kumar Barik
- Department of Anesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Vinitha Narayan
- Department of Anesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Quan SF, Weaver MD, Czeisler MÉ, Barger LK, Booker LA, Howard ME, Jackson ML, Lane RI, McDonald CF, Ridgers A, Robbins R, Varma P, Wiley JF, Rajaratnam SM, Czeisler CA. Association of Obstructive Sleep Apnea with Post-Acute Sequelae of SARS-CoV-2 infection (PASC). medRxiv 2023:2023.12.30.23300666. [PMID: 38234859 PMCID: PMC10793517 DOI: 10.1101/2023.12.30.23300666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Background Obstructive sleep apnea (OSA) is associated with COVID-19 infection. Fewer investigations have assessed OSA as a possible risk for the development of Post-Acute Sequelae of SARS-CoV-2 infection (PASC). Research Question In a general population, is OSA associated with increased odds of PASC-related symptoms and with an overall definition of PASC? Study Design Cross-sectional survey of a general population of 24,803 U.S. adults. Results COVID-19 infection occurred in 10,324 (41.6%) participants. Prevalence rates for a wide variety of persistent (> 3 months post infection) putative PASC-related physical and mental health symptoms ranged from 6.5% (peripheral edema) to 19.6% (nervous/anxious). In logistic regression models adjusted for demographic, anthropometric, comorbid medical and socioeconomic factors, OSA was associated with all putative PASC-related symptoms with the highest adjusted odds ratios (aOR) being fever (2.053) and nervous/anxious (1.939) respectively. Elastic net regression identified the 13 of 37 symptoms most strongly associated with COVID-19 infection. Four definitions of PASC were developed using these symptoms either weighted equally or proportionally by their regression coefficients. In all 4 logistic regression models using these definitions, OSA was associated with PASC (range of aORs: 1.934-2.071); this association was mitigated in those with treated OSA. In the best fitting overall model requiring ≥3 symptoms, PASC prevalence was 21.9%. Conclusion In a general population sample, OSA is associated with the development of PASC-related symptoms and a global definition of PASC. A PASC definition requiring the presence of 3 or more symptoms may be useful in identifying cases and for future research.
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Affiliation(s)
- Stuart F. Quan
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Matthew D. Weaver
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Mark É. Czeisler
- Francis Weld Peabody Society, Harvard Medical School, Boston, MA
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Laura K. Barger
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Lauren A. Booker
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- University Department of Rural Health, La Trobe Rural Health School, La Trobe University, Bendigo, Victoria, Australia
| | - Mark E. Howard
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Melinda L. Jackson
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Rashon I. Lane
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
| | - Christine F. McDonald
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia
- Faculty of Medicine, Monash University, Melbourne Australia
| | - Anna Ridgers
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia
| | - Rebecca Robbins
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Prerna Varma
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Joshua F. Wiley
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Shantha M.W. Rajaratnam
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Charles A. Czeisler
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
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Verma S, Varma P, Brown A, Bei B, Gibson R, Valenta T, Pietsch A, Cavuoto M, Woodward M, McCurry S, Jackson ML. Multi-modal sleep intervention for community-dwelling people living with dementia and primary caregiver dyads with sleep disturbance: protocol of a single-arm feasibility trial. PeerJ 2023; 11:e16543. [PMID: 38107589 PMCID: PMC10725664 DOI: 10.7717/peerj.16543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 11/08/2023] [Indexed: 12/19/2023] Open
Abstract
Background Disturbed sleep is common among people living with dementia and their informal caregivers, and is associated with negative health outcomes. Dyadic, multi-modal interventions targeting caregiver and care-recipient sleep have been recommended yet remain limited. This protocol details the development of a single-arm feasibility trial of a multi-modal, therapist-led, six-week intervention targeting sleep disturbance in dyads of people living with dementia and their primary caregiver. Methods We aim to recruit 24 co-residing, community-dwelling dyads of people living with dementia and their primary informal caregiver (n = 48) with sleep concerns (Pittsburgh Sleep Quality Index ≥5 for caregivers, and caregiver-endorsed sleep concerns for the person living with dementia). People who live in residential care settings, are employed in night shift work, or are diagnosed with current, severe mental health conditions or narcolepsy, will be excluded. Participants will wear an actigraph and complete sleep diaries for two weeks prior, and during the last two weeks, of active intervention. The intervention is therapist-led and includes a mix of weekly small group video sessions and personalised, dyadic sessions (up to 90 min each) over six weeks. Sessions are supported by a 37-page workbook offering strategies and spaces for reflections/notes. Primary feasibility outcomes are caregiver: session attendance, attrition, and self-reported project satisfaction. Secondary outcomes include dyadic self-reported and objectively-assessed sleep, depression and anxiety symptoms, quality of life, and social support. Self-report outcomes will be assessed at pre- and post-intervention. Discussion If feasible, this intervention could be tested in a larger randomised controlled trial to investigate its efficacy, and, upon further testing, may potentially represent a non-pharmacological approach to reduce sleep disturbance among people living with dementia and their caregivers. ANZCTR Trial registration ACTRN12622000144718: https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=382960&showOriginal=true&isReview=true.
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Affiliation(s)
| | | | - Aimee Brown
- Monash University, Clayton, Victoria, Australia
- Monash-Epworth Rehabilitation Centre, Richmond, Victoria, Australia
| | - Bei Bei
- Monash University, Clayton, Victoria, Australia
| | - Rosemary Gibson
- Health and Ageing Research Team, School of Psychology, Massey University, Palmerston North, New Zealand
| | - Tom Valenta
- Independent Researcher, Melbourne, Victoria, Australia
| | - Ann Pietsch
- Independent Researcher, Adelaide, South Australia, Australia
| | | | - Michael Woodward
- Aged and Continuing Care Services, Austin Health, Heidelberg, Victoria, Australia
| | - Susan McCurry
- School of Nursing, University of Washington, Washington, United States of America
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Varma P, Postnova S, Phillips AJK, Knock S, Howard ME, Rajaratnam SMW, Sletten TL. Pilot feasibility testing of biomathematical model recommendations for personalising sleep timing in shift workers. J Sleep Res 2023:e14026. [PMID: 37632717 DOI: 10.1111/jsr.14026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/28/2023]
Abstract
Sleep disturbances and circadian disruption play a central role in adverse health, safety, and performance outcomes in shift workers. While biomathematical models of sleep and alertness can be used to personalise interventions for shift workers, their practical implementation is undertested. This study tested the feasibility of implementing two biomathematical models-the Phillips-Robinson Model and the Model for Arousal Dynamics-in 28 shift-working nurses, 14 in each group. The study examined the overlap and adherence between model recommendations and sleep behaviours, and changes in sleep following the implementation of recommendations. For both groups combined, the mean (SD) percentage overlap between when a model recommended an individual to sleep and when sleep was obtained was 73.62% (10.24%). Adherence between model recommendations and sleep onset and offset times was significantly higher with the Model of Arousal Dynamics compared to the Phillips-Robinson Model. For the Phillips-Robinson model, 27% of sleep onset and 35% of sleep offset times were within ± 30 min of model recommendations. For the Model of Arousal Dynamics, 49% of sleep onset, and 35% of sleep offset times were within ± 30 min of model recommendations. Compared to pre-study, significant improvements were observed post-study for sleep disturbance (Phillips-Robinson Model), and insomnia severity and sleep-related impairments (Model of Arousal Dynamics). Participants reported that using a digital, automated format for the delivery of sleep recommendations would enable greater uptake. These findings provide a positive proof-of-concept for using biomathematical models to recommend sleep in operational contexts.
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Affiliation(s)
- Prerna Varma
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Clayton, Australia
| | | | - Andrew J K Phillips
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Clayton, Australia
| | - Stuart Knock
- School of Physics, The University of Sydney, Camperdown, Australia
| | - Mark E Howard
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Clayton, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Australia
| | - Shantha M W Rajaratnam
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Clayton, Australia
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Tracey L Sletten
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Clayton, Australia
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Quan SF, Weaver MD, Czeisler MÉ, Barger LK, Booker LA, Howard ME, Jackson ML, Lane RI, McDonald CF, Ridgers A, Robbins R, Varma P, Rajaratnam SM, Czeisler CA. Association of Chronotype and Shiftwork with COVID-19 Infection. medRxiv 2023:2023.07.06.23292337. [PMID: 37461617 PMCID: PMC10350136 DOI: 10.1101/2023.07.06.23292337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Objective This study assesses whether chronotype is related to COVID-19 infection and whether there is an interaction with shift work. Methods Cross-sectional survey of 19,821 U.S. adults. Results COVID-19 infection occurred in 40% of participants, 32.6% morning and 17.2% evening chronotypes. After adjusting for demographic and socioeconomic factors, shift work, sleep duration and comorbidities, morning chronotype was associated with a higher (aOR: 1.15, 95% CI 1.10-1.21) and evening chronotype with a lower (aOR: 0.82, 95% CI: 0.78-0.87) prevalence of COVID-19 infection in comparison to an intermediate chronotype. Working exclusively night shifts was not associated with higher prevalence of COVID-19. Morning chronotype and working some evening shifts was associated with the highest prevalence of previous COVID-19 infection (aOR: 1.87, 95% CI: 1.28-2.74). Conclusion Morning chronotype and working a mixture of shifts increase risk of COVID-19 infection.
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Affiliation(s)
- Stuart F. Quan
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Matthew D. Weaver
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Mark É. Czeisler
- Francis Weld Peabody Society, Harvard Medical School, Boston, MA
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Laura K. Barger
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Lauren A. Booker
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- University Department of Rural Health, La Trobe Rural Health School, La Trobe University, Bendigo, Victoria, Australia
| | - Mark E. Howard
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Melinda L. Jackson
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Rashon I. Lane
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
| | - Christine F. McDonald
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia
- Faculty of Medicine, Monash University, Melbourne Australia
| | - Anna Ridgers
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia
| | - Rebecca Robbins
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Prerna Varma
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Shantha M.W. Rajaratnam
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Charles A. Czeisler
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
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Quan SF, Weaver MD, Czeisler MÉ, Barger LK, Booker LA, Howard ME, Jackson ML, Lane R, McDonald CF, Ridgers A, Robbins R, Varma P, Rajaratnam SM, Czeisler CA. Associations between obstructive sleep apnea and COVID-19 infection and hospitalization among US adults. J Clin Sleep Med 2023; 19:1303-1311. [PMID: 37279079 PMCID: PMC10315594 DOI: 10.5664/jcsm.10588] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/30/2023]
Abstract
STUDY OBJECTIVES Medical comorbidities increase the risk of severe COVID-19 infection. In some studies, obstructive sleep apnea (OSA) has been identified as a comorbid condition that is associated with an increased prevalence of COVID-19 infection and hospitalization, but few have investigated this association in a general population. This study aimed to answer the following research question: In a general population, is OSA associated with increased odds of COVID-19 infection and hospitalization and are these altered with COVID-19 vaccination? METHODS This was a cross-sectional survey of a diverse sample of 15,057 US adults. RESULTS COVID-19 infection and hospitalization rates in the cohort were 38.9% and 2.9%, respectively. OSA or OSA symptoms were reported in 19.4%. In logistic regression models adjusted for demographic, socioeconomic, and comorbid medical conditions, OSA was positively associated with COVID-19 infection (adjusted odds ratio: 1.58, 95% CI: 1.39-1.79) and COVID-19 hospitalization (adjusted odds ratio: 1.55, 95% CI: 1.17-2.05). In fully adjusted models, boosted vaccination status was protective against both infection and hospitalization. Boosted vaccination status attenuated the association between OSA and COVID-19 related hospitalization but not infection. Participants with untreated or symptomatic OSA were at greater risk for COVID-19 infection; those with untreated but not symptomatic OSA were more likely to be hospitalized. CONCLUSIONS In a general population sample, OSA is associated with a greater likelihood of having had a COVID-19 infection and a COVID-19 hospitalization with the greatest impact observed among persons experiencing OSA symptoms or who were untreated for their OSA. Boosted vaccination status attenuated the association between OSA and COVID-19-related hospitalization. CITATION Quan SF, Weaver MD, Czeisler MÉ, et al. Associations between obstructive sleep apnea and COVID-19 infection and hospitalization among U.S. adults. J Clin Sleep Med. 2023;19(7):1303-1311.
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Affiliation(s)
- Stuart F. Quan
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts
| | - Matthew D. Weaver
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts
| | - Mark É. Czeisler
- Francis Weld Peabody Society, Harvard Medical School, Boston, Massachusetts
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Laura K. Barger
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts
| | - Lauren A. Booker
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- University Department of Rural Health, La Trobe Rural Health School, La Trobe University, Bendigo, Victoria, Australia
| | - Mark E. Howard
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Melinda L. Jackson
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Rashon Lane
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Christine F. McDonald
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia
- Faculty of Medicine, Monash University, Melbourne Australia
| | - Anna Ridgers
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia
| | - Rebecca Robbins
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts
| | - Prerna Varma
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Shantha M.W. Rajaratnam
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Charles A. Czeisler
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts
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Affiliation(s)
- Anudeep Jafra
- Post Graduate Institute of Medical Education and Research, Chandigarah, India
| | - Harpreet Singh
- Post Graduate Institute of Medical Education and Research, Chandigarah, India
| | - Prerna Varma
- Post Graduate Institute of Medical Education and Research, Chandigarah, India
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13
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Quan SF, Weaver MD, Czeisler MÉ, Barger LK, Booker LA, Howard ME, Jackson ML, Lane RI, McDonald CF, Ridgers A, Robbins R, Varma P, Wiley JF, Rajaratnam SMW, Czeisler CA. Insomnia, Poor Sleep Quality and Sleep Duration and Risk for COVID-19 Infection and Hospitalization. Am J Med 2023:S0002-9343(23)00248-6. [PMID: 37075878 PMCID: PMC10108572 DOI: 10.1016/j.amjmed.2023.04.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/31/2023] [Accepted: 04/02/2023] [Indexed: 04/21/2023]
Abstract
BACKGROUND Medical comorbidities increase the risk of severe acute COVID-19 illness. Although sleep problems are common after COVID-19 infection, it is unclear whether insomnia, poor sleep quality and extremely long or short sleep increase risk of developing COVID-19 infection or hospitalization. METHODS Cross-sectional survey of a diverse sample of 19,926 U.S. adults RESULTS: COVID-19 infection and hospitalization prevalence rates were 40.1% and 2.9% respectively. Insomnia and poor sleep quality were reported in 19.8% and 40.1% respectively. In logistic regression models adjusted for comorbid medical conditions and sleep duration but excluding participants who reported COVID-19 associated sleep problems, poor sleep quality but not insomnia was associated with COVID-19 infection (aOR: 1.16, 95%CI: 1.07-1.26) and COVID-19 hospitalization (aOR: 1.50, 95% CI: 1.18-1.91). In comparison to habitual sleep duration of 7-8 hours, sleep durations less than 7 hours (aOR: 1.14, 95% CI: 1.06-1.23) and sleep duration of 12 hours (aOR: 1.61, 95% CI: 1.12-2.31) were associated with increased odds of COVID-19 infection. Overall, the relationship between COVID-19 infection and hours of sleep followed a quadratic (U shaped) pattern. No association between sleep duration and COVID-19 hospitalization was observed. CONCLUSION In a general population sample, poor sleep quality and extremes of sleep duration are associated with greater odds of having had a COVID-19 infection; poor sleep quality was associated with an increased requirement of hospitalization for severe COVID-19 illness. These observations suggest that inclusion of healthy sleep practices in public health messaging may reduce the impact of the COVID-19 pandemic.
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Affiliation(s)
- Stuart F Quan
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA; Division of Sleep Medicine, Harvard Medical School, Boston, MA.
| | - Matthew D Weaver
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA; Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Mark É Czeisler
- Francis Weld Peabody Society, Harvard Medical School, Boston, MA; School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Laura K Barger
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA; Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Lauren A Booker
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; University Department of Rural Health, La Trobe Rural Health School, La Trobe University, Bendigo, Victoria, Australia
| | - Mark E Howard
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia; Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Melinda L Jackson
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Rashon I Lane
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA
| | - Christine F McDonald
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia; Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia; Faculty of Medicine, Monash University, Melbourne, Australia
| | - Anna Ridgers
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia; Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Rebecca Robbins
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA; Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Prerna Varma
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Joshua F Wiley
- School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Shantha M W Rajaratnam
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA; School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia; Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - Charles A Czeisler
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA; Division of Sleep Medicine, Harvard Medical School, Boston, MA
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14
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Meaklim H, Junge MF, Varma P, Finck WA, Jackson ML. Beyond Stress: Altered Sleep-Wake Patterns are a Key Behavioral Risk Factor for Acute Insomnia During Times of Crisis. Behav Sleep Med 2023; 21:208-225. [PMID: 35604338 DOI: 10.1080/15402002.2022.2074996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND Stress is a common precipitant of acute insomnia; however, reducing stress during times of crisis is challenging. This study aimed to determine which modifiable factors, beyond stress, were associated with acute insomnia during a major crisis, the COVID-19 pandemic. PARTICIPANTS/METHODS A global online survey assessed sleep/circadian, stress, mental health, and lifestyle factors between April-May 2020. Logistic regression models analyzed data from 1319 participants (578 acute insomnia, 731 good sleepers), adjusted for demographic differences. RESULTS Perceived stress was a significant predictor of acute insomnia during the pandemic (OR 1.23, 95% CI1.19-1.27). After adjusting for stress, individuals who altered their sleep-wake patterns (OR 3.36, CI 2.00-5.67) or increased technology use before bed (OR 3.13, CI 1.13-8.65) were at increased risk of acute insomnia. Other sleep factors associated with acute insomnia included changes in dreams/nightmares (OR 2.08, CI 1.32-3.27), increased sleep effort (OR 1.99, CI1.71-2.31) and cognitive pre-sleep arousal (OR 1.18, CI 1.11-1.24). For pandemic factors, worry about contracting COVID-19 (OR 3.08, CI 1.18-8.07) and stringent government COVID-19 restrictions (OR 1.12, CI =1.07-1.18) were associated with acute insomnia. Anxiety (OR 1.02, CI 1.01-1.05) and depressive (OR 1.29, CI 1.22-1.37) symptoms were also risk factors. A final hierarchical regression model revealed that after accounting for stress, altered sleep-wake patterns were a key behavioral predictor of acute insomnia (OR 2.60, CI 1.68-5.81). CONCLUSION Beyond stress, altered sleep-wake patterns are a key risk factor for acute insomnia. Modifiable behaviors such as maintaining regular sleep-wake patterns appear vital for sleeping well in times of crisis.
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Affiliation(s)
- Hailey Meaklim
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, Victoria, Australia
| | - Moira F Junge
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, Victoria, Australia.,The Sleep Health Foundation, Blacktown, New South Wales, Australia
| | - Prerna Varma
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, Victoria, Australia
| | - Wendy A Finck
- Faculty of Education, Monash University, Clayton, Victoria, Australia
| | - Melinda L Jackson
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, Victoria, Australia
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15
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Meaklim H, Saunders WJ, Byrne ML, Junge MF, Varma P, Finck WA, Jackson ML. Insomnia is a key risk factor for persistent anxiety and depressive symptoms: A 12-month longitudinal cohort study during the COVID-19 pandemic. J Affect Disord 2023; 322:52-62. [PMID: 36372131 DOI: 10.1016/j.jad.2022.11.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/26/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND Insomnia is a risk factor for affective disorders. This study examined whether individuals with insomnia symptoms early in the pandemic, either pre-existing or new-onset, were more vulnerable to anxiety and depressive symptoms over time than those who maintained normal sleep. Additionally, sleep-related factors such as pre-sleep arousal were assessed for their influence on clinically significant anxiety and depression risk. METHODS Using a global online survey with 3-, 6-, and 12-month follow-ups between April 2020 and May 2021, data from 2069 participants (M = 46.16 ± 13.42 years; 75.3 % female) with pre-existing, new-onset, or no insomnia symptoms was examined using mixed-effects and logistic regression models. RESULTS New-onset and pre-existing insomnia predicted persistent anxiety and depressive symptoms longitudinally (p's < 0.001), over other known risk factors, including age, sex, and previous psychiatric diagnoses. Anxiety and depressive symptoms in both insomnia groups remained above clinically significant thresholds at most time points, whereas normal sleepers remained subclinical. Pre-sleep arousal was found to increase the risk of clinically significant anxiety (OR = 1.05) and depressive symptoms (OR = 1.09) at 12-months. Sleep effort contributed to anxiety (OR = 1.06), whereas dysfunctional sleep-related beliefs and attitudes predicted clinically significant depression (OR = 1.22). LIMITATIONS Insomnia group categorization was based on self-report at baseline supported by a validated measure. High participant attrition was observed at 3-months (53 %; n = 971), but retention remained steady till 12-months (63 %, n = 779). CONCLUSIONS Insomnia is a modifiable risk factor for persistent anxiety and depressive symptoms that needs to be addressed in mental healthcare. Additionally, pre-sleep arousal may be an important transdiagnostic process linking insomnia with affective disorders.
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Affiliation(s)
- Hailey Meaklim
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Victoria, Australia
| | - William J Saunders
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Victoria, Australia
| | - Michelle L Byrne
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Victoria, Australia; Department of Psychology, University of Oregon, Eugene, OR, USA; The Sleep Health Foundation, Blacktown, New South Wales, Australia
| | - Moira F Junge
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Victoria, Australia; School of Educational Psychology and Counselling, Faculty of Education, Monash University, Victoria, Australia
| | - Prerna Varma
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Victoria, Australia
| | - Wendy A Finck
- School of Educational Psychology and Counselling, Faculty of Education, Monash University, Victoria, Australia
| | - Melinda L Jackson
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Victoria, Australia.
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16
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Czeisler MÉ, Lane RI, Orellana RC, Lundeen K, Macomber K, Collins J, Varma P, Booker LA, Rajaratnam SM, Howard ME, Czeisler CA, Flannery B, Weaver MD. Perception of Local COVID-19 Transmission and Use of Preventive Behaviors Among Adults with Recent SARS-CoV-2 Infection - Illinois and Michigan, June 1-July 31, 2022. MMWR Morb Mortal Wkly Rep 2022; 71:1471-1478. [PMID: 36395064 PMCID: PMC9707356 DOI: 10.15585/mmwr.mm7146a2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
During the early stages of the COVID-19 pandemic, use of preventive behaviors was associated with perceived risk for contracting SARS-CoV-2 infection (1,2). Over time, perceived risk has declined along with waning COVID-19-related media coverage (3,4). The extent to which communities continue to be aware of local COVID-19 transmission levels and are implementing recommended preventive behaviors is unknown. During June 1-July 31, 2022, health departments in DuPage County, Illinois and metropolitan Detroit, Michigan surveyed a combined total of 4,934 adults who had received a positive test result for SARS-CoV-2 during the preceding 3 weeks. The association between awareness of local COVID-19 transmission and use of preventive behaviors and practices was assessed, both in response to perceived local COVID-19 transmission levels and specifically during the 2 weeks preceding SARS-CoV-2 testing. Both areas had experienced sustained high COVID-19 transmission during the study interval as categorized by CDC COVID-19 transmission levels.* Overall, 702 (14%) respondents perceived local COVID-19 transmission levels as high, 987 (20%) as substantial, 1,902 (39%) as moderate, and 581 (12%) as low; 789 (16%) reported they did not know. Adjusting for geographic area, age, gender identity, and combined race and ethnicity, respondents who perceived local COVID-19 transmission levels as high were more likely to report having made behavioral changes because of the level of COVID-19 transmission in their area, including wearing a mask in public, limiting travel, and avoiding crowded places or events. Continued monitoring of public perceptions of local COVID-19 levels and developing a better understanding of their influence on the use of preventive behaviors can guide COVID-19 communication strategies and policy making during and beyond the pandemic.
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17
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Varma P, Jackson ML, Junge M, Conduit R. Actigraphy‐measured sleep concordance, night‐wakings, intraindividual sleep variability in parents and their children—Associations with childhood sleep disturbances. J Sleep Res 2022; 32:e13773. [PMID: 36345126 DOI: 10.1111/jsr.13773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/10/2022]
Abstract
The relationship between the sleep of parents and their children has primarily been studied using self-reported measures, but data using objective sleep assessments are limited. In particular, objective assessments of sleep disturbance and night-wakings in parents in relation to their children's night-wakings is underexamined. This pilot study employed actigraphy to determine concordance in sleep-wake patterns between parents and their children, and examine temporal links between their wakings lasting five min or longer. The study also explored individual variability in parents' sleep based on parent-reported sleep disturbances in children. A total of 20 parents and children (aged 2-12 years, no co-sleepers) contributed actigraphy data for the 14-night study, totalling 280 nights of data. Parents reported their sleep quality using the Pittsburgh Sleep Quality Index, and children's sleep using the Children Sleep Habits Questionnaire. Concordance analysis of actigraphy data revealed an average of 70.6% match in sleep/wake state between parents and children. Parents were three times more likely to have an awakening within 10 min of their child waking than vice versa. Parent-reported sleep disturbances in children were associated with poorer actigraphic sleep outcomes for both the parent and child. Parents of poorly sleeping children demonstrated greater variability in their bedtime, and wake after sleep onset. Further examination of temporal links between parent-child sleep can improve our understanding of factors that predispose or precipitate sleep disturbances across families. Given the high concordance in parent-child sleep and poorer actigraphy sleep outcomes in parents of children with sleep disturbances, there is a need to deliver efficacious sleep interventions at the family level.
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Affiliation(s)
- Prerna Varma
- School of Health and Biomedical Sciences RMIT University Melbourne Victoria Australia
- Turner Institute for Brain and Mental Health, School of Psychological Sciences Monash University Clayton Victoria Australia
| | - Melinda L. Jackson
- Turner Institute for Brain and Mental Health, School of Psychological Sciences Monash University Clayton Victoria Australia
| | - Moira Junge
- Sleep Health Foundation Blacktown New South Wales Australia
| | - Russell Conduit
- School of Health and Biomedical Sciences RMIT University Melbourne Victoria Australia
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Meaklim H, Burge M, Le F, Bains SK, Saunders W, Ghosh S, Junge MF, Varma P, Rehm IC, Jackson ML. Strange themes in pandemic dreams: Insomnia was associated with more negative, anxious and death-related dreams during the COVID-19 pandemic. J Sleep Res 2022; 32:e13655. [PMID: 35699296 PMCID: PMC9350044 DOI: 10.1111/jsr.13655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 05/03/2022] [Accepted: 05/08/2022] [Indexed: 02/03/2023]
Abstract
Dreaming and insomnia are important markers of distress in times of crisis. Here, we present a longitudinal, mixed-methods study examining changes in dreaming between individuals with and without insomnia symptoms and their relationship to mental health during the COVID-19 pandemic. A global survey examining insomnia symptoms, dreams and mental health was launched in April 2020 and followed participants over 12 months. Of 2240 participants, 1009 (45%) reported dream changes at baseline. A higher proportion of participants with new-onset insomnia reported dream changes (55%) than those with pre-existing insomnia (45%) or good sleepers (36%). Overall, thematic analysis identified key dream change themes of increased dream activity, with participants dreaming vividly, in high-definition, and with a strong negative charge. Themes around survival, adjusting to pandemic life, meaning-making and poor sleep quality were also noted. Linguistic Inquiry Word Count showed that individuals with insomnia used more negative words to describe their dream changes than good sleepers. Specifically, the new-onset insomnia group used more anxious and death-related words than those who slept well. Notably, all groups experienced a significant reduction in dream activity by 3-month follow-up. Lastly, dream changes were associated with worse mental health symptoms over time, and this effect was more pronounced in individuals with insomnia. Our results highlight that insomnia symptoms, especially new-onset insomnia, are associated with more negative dream changes during collective stressful events, potentially compounding daytime distress and mental health symptoms over time. During times of crisis, dreaming and insomnia may reveal an important target for mental health interventions.
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Affiliation(s)
- Hailey Meaklim
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMonashVictoriaAustralia
| | - Malisa Burge
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMonashVictoriaAustralia
| | - Flora Le
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMonashVictoriaAustralia
| | - Sukjhit K. Bains
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMonashVictoriaAustralia
| | - William Saunders
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMonashVictoriaAustralia
| | - Stephen Ghosh
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMonashVictoriaAustralia
| | - Moira F. Junge
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMonashVictoriaAustralia,The Sleep Health FoundationBlacktownNew South WalesAustralia
| | - Prerna Varma
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMonashVictoriaAustralia
| | - Imogen C. Rehm
- College of Health and BiomedicineVictoria UniversityMelbourneVictoriaAustralia
| | - Melinda L. Jackson
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMonashVictoriaAustralia
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Varma P, Puri S. Effect of oxygen concentration on atelectasis formation during induction of general anesthesia in children: A prospective randomized controlled trial-A Comment. Paediatr Anaesth 2022; 32:488-489. [PMID: 35032075 DOI: 10.1111/pan.14394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/07/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Prerna Varma
- Department of Anaesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sunaakshi Puri
- Department of Anaesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Varma P, Burge M, Meaklim H, Junge M, Jackson M. P152 Poor sleep quality, individual experiences and increased risk of self-harm – A multi-method study. SLEEP Advances 2021. [PMCID: PMC8500162 DOI: 10.1093/sleepadvances/zpab014.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Introduction The COVID-19 pandemic has caused significant psychological distress to many people across the globe. Poor sleep quality may be linked to poor mental health and increased suicide ideation. To contextualise the risk factors associated with self-harm or suicidal ideation during the COVID-19 pandemic, this cross-sectional study examined links between poor sleep quality, individual experiences and self-harm risk. Methods N=1544 (Mage=44.3y) from 63 countries completed an online survey in March-April 2020. Participants reported their pandemic experiences as free text responses, which were examined quantitatively for frequent word usage using Linguist Inquiry and Word Count software. Pittsburgh Sleep Quality Index assessed poor sleep quality (cut-off score >8). Item-9 of Patient Health Questionnaire-9 measured the risk of self-harm. Results Individuals with poor sleep quality (45%) used more negative emotional tone and had greater use of anxiety or money-related words in their comments than good sleepers (all ps<.05). Additionally, 19% of respondents (n=295) reported thoughts of self-harm at least several days a week (3.4% nearly every day). Logistic regression indicated that younger individuals, males, and those feeling isolated or less resilient had 1.2 to 1.5 times greater risk of self-harm (all ps<.001). Poor sleep quality was associated with a two-fold increased risk of self-harm (95%CI=1.5–2.7, p<.0001) after controlling for demographic variables. Discussion Poor sleep quality is linked to negative emotionality and increased risk of self-harm during the COVID-19 pandemic. Sleep is a modifiable factor; therefore interventions aimed at addressing sleep disturbances may improve resilience and reduce the risk of self-harm in vulnerable individuals.
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Affiliation(s)
- P Varma
- Turner Institute for Brain and Mental Health, Monash University, Clayton, Australia
| | - M Burge
- Turner Institute for Brain and Mental Health, Monash University, Clayton, Australia
| | - H Meaklim
- Turner Institute for Brain and Mental Health, Monash University, Clayton, Australia
| | - M Junge
- Sleep Health Foundation, Blacktown, Australia
| | - M Jackson
- Turner Institute for Brain and Mental Health, Monash University, Clayton, Australia
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Meaklim H, Junge MF, Varma P, Finck WA, Jackson ML. Pre-existing and post-pandemic insomnia symptoms are associated with high levels of stress, anxiety, and depression globally during the COVID-19 pandemic. J Clin Sleep Med 2021; 17:2085-2097. [PMID: 33985647 PMCID: PMC8494096 DOI: 10.5664/jcsm.9354] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 04/15/2021] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES The coronavirus disease 2019 (COVID-19) pandemic has led to an increased prevalence of insomnia and mental health symptoms globally. However, most studies to date have not examined mental health symptoms between individuals with insomnia, either pre-existing or developing post-pandemic compared with good sleepers. This study examined differences in stress, anxiety, and depression between individuals with pre-existing insomnia symptoms, post-pandemic insomnia symptoms, and no insomnia symptoms in response to the COVID-19 pandemic. METHODS A cross-sectional survey was completed by 2724 participants from 67 countries during the COVID-19 pandemic. Perceived stress, anxiety, and depressive symptoms were compared between individuals with post-pandemic insomnia symptoms (n = 1007), pre-existing insomnia symptoms (n = 804), and no insomnia symptoms (n = 913). RESULTS Post-pandemic insomnia symptoms were associated with higher levels of stress, anxiety, and depression than pre-existing or no insomnia symptoms (P < .001). Pre-existing insomnia symptoms were also associated with higher levels of stress, anxiety, and depression than no insomnia symptoms (P < .001). Individuals who met likely criteria for acute insomnia also reported higher stress, anxiety, and depression than those with insomnia disorder (P < .001). Across all groups, individuals reporting a previous mental health diagnosis had worse stress, anxiety, and depression than those without a previous mental health diagnosis (P < .001). Last, individuals from South Africa reported higher levels of stress, anxiety, and depression than other countries (P < .01). CONCLUSIONS Internationally, individuals with pre-existing and post-pandemic insomnia symptoms may be more susceptible to stress, anxiety, and depression during the COVID-19 pandemic. Public health initiatives should include insomnia management to improve mental health during the pandemic. CITATION Meaklim H, Junge MF, Varma P, Finck WA, Jackson ML. Pre-existing and post-pandemic insomnia symptoms are associated with high levels of stress, anxiety, and depression globally during the COVID-19 pandemic. J Clin Sleep Med. 2021;17(10):2085-2097.
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Affiliation(s)
- Hailey Meaklim
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Moira F. Junge
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
- The Sleep Health Foundation, Blacktown, New South Wales, Australia
| | - Prerna Varma
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Wendy A. Finck
- Faculty of Education, Monash University, Melbourne, Victoria, Australia
| | - Melinda L. Jackson
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
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Varma P, Junge M, Meaklim H, Jackson ML. Younger people are more vulnerable to stress, anxiety and depression during COVID-19 pandemic: A global cross-sectional survey. Prog Neuropsychopharmacol Biol Psychiatry 2021; 109:110236. [PMID: 33373680 PMCID: PMC7834119 DOI: 10.1016/j.pnpbp.2020.110236] [Citation(s) in RCA: 290] [Impact Index Per Article: 96.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 12/23/2022]
Abstract
The COVID-19 pandemic has had far-ranging consequences for general physical and mental health. Country-specific research reveals a general reduction in mental and physical well-being, due to measures undertaken to stop the spread of COVID-19 disease. However, research is yet to examine the impact of the pandemic on global psychological distress and its effects upon vulnerable groups. Exploration of the factors that potentially mediate the relationship between stress and mental health during this period is needed, to assist in undertaking concrete measures to mitigate psychological distress and support vulnerable groups. Therefore, this study examined the impact of the COVID-19 pandemic on psychological distress globally, and identified factors that may exacerbate decline in mental health. N = 1653 participants (mean age 42.90 ± 13.63 years; 30.3% males) from 63 countries responded to the survey. Depression and anxiety were assessed using the Patient Health Questionnaire and State Trait Anxiety Inventory, respectively. Other measures included the Perceived Stress Scale, the Pittsburgh Sleep Quality Index, 3-item UCLA Loneliness Scale and the Brief Resilient Coping Scale. Globally, consistently high levels of stress, anxiety, depression and poor sleep were observed regardless of number of COVID-19 cases. Over 70% of the respondents had greater than moderate levels of stress, with 59% meeting the criteria for clinically significant anxiety and 39% reporting moderate depressive symptoms. People with a prior mental health diagnosis experienced greater psychological distress. Poor sleep, lower levels of resilience, younger age and loneliness significantly mediated the links between stress and depression, and stress and anxiety. Age-based differences revealed that younger age-groups were more vulnerable to stress, depression and anxiety symptoms. Results show that these vulnerable individuals need more support. Age-specific interventions for modifiable factors that mediate the psychological distress need to urgently deployed to address the global mental health pandemic.
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Shergis JL, Hyde A, Meaklim H, Varma P, Da Costa C, Jackson ML. Medicinal seeds Ziziphus spinosa for insomnia: A randomized, placebo-controlled, cross-over, feasibility clinical trial. Complement Ther Med 2020; 57:102657. [PMID: 33385511 DOI: 10.1016/j.ctim.2020.102657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 11/27/2020] [Accepted: 12/23/2020] [Indexed: 10/22/2022] Open
Abstract
OBJECTIVES To evaluate the feasibility of implementing a clinical trial protocol of the herbal seeds Ziziphus spinosa (ZS) for people with insomnia. DESIGN AND SETTING A randomized, double-blind, placebo controlled, cross-over feasibility trial in Melbourne, Australia. INTERVENTIONS After two-week run-in participants were randomized to either ZS (encapsulated granules; 2 g daily) or placebo for four weeks. After four-weeks wash-out, participants swapped to the other treatment for four weeks. MAIN OUTCOME MEASURES Sleep quality assessed by the Insomnia Severity Index and Pittsburgh Sleep Quality Index (PSQI). Quality of life, mood, functional impairment and sleep parameters were also assessed. RESULTS Twelve participants were randomized and completed both periods of cross-over (six in each sequence). Feasibility endpoints were acceptable. Improvements for sleep quality measured on the PSQI were statistically significant during the ZS treatment periods compared to placebo (t = -2.276, df = 10, 95 % CI -3.3 to -0.04, p = 0.046). There was no evidence of any significant carryover effects. However, there were period effects. Other outcomes showed no statistically significant difference between the treatments. Subjective sleep parameters measured on sleep diaries showed improvements after ZS in terms of total sleep time, sleep efficiency and sleep onset latency, but not after placebo. ZS was well tolerated with only minor adverse events. CONCLUSIONS ZS is an acceptable and well-tolerated herbal candidate for the treatment of insomnia. The feasibility objectives of this study were achieved and ZS improved both subjective sleep quality and quantity compared to placebo. ZS should be explored in future clinical trials.
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Affiliation(s)
- Johannah L Shergis
- School of Health and Biomedical Sciences, RMIT University, PO BOX 71, Bundoora, Victoria 3083, Australia.
| | - Anna Hyde
- School of Health and Biomedical Sciences, RMIT University, PO BOX 71, Bundoora, Victoria 3083, Australia.
| | - Hailey Meaklim
- School of Health and Biomedical Sciences, RMIT University, PO BOX 71, Bundoora, Victoria 3083, Australia.
| | - Prerna Varma
- School of Health and Biomedical Sciences, RMIT University, PO BOX 71, Bundoora, Victoria 3083, Australia.
| | - Cliff Da Costa
- School of Science, RMIT University, PO BOX 71, Bundoora, Victoria 3083, Australia.
| | - Melinda L Jackson
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, Victoria 3800, Australia.
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Abstract
OBJECTIVE The current study examined sleep and mood associations in parents of children with sleep disturbances across a sample of typically developing children and children with neurodevelopmental disorders. The mediating effect of children's sleep on the relationship between parents' sleep and mood was also assessed. The study explored differences in parents' sleep based on whether 1) the child had a sleep disturbance, and 2) the child was typically developing or had a neurodevelopmental disorder. METHODS A total of 293 parents of children aged 2-12 years completed an online questionnaire. Parental sleep was examined using the Pittsburgh Sleep Quality Index, the Glasgow Sleep Effort Scale and the Pre-sleep Arousal Scale, and mood was assessed using the Profile of Mood States-short form. Measures for children included the Child's Sleep Habits Questionnaire (CSHQ) and the Strengths and Difficulties Questionnaire. RESULTS Across the overall sample, children's sleep disturbances were associated with parents' sleep disturbances, accounting for 22% of the change in parental sleep quality. Children's sleep partially mediated parents' sleep and mood. Significant differences were observed for sleep and mood outcomes in parents of children with sleep disturbances (CSHQ scores ≥41). However, no significant differences were reported for children's sleep disturbances and parents' sleep quality based on whether the child was typically developing or had a neurodevelopmental disorder. CONCLUSION Parents of children with sleep disturbances experience poor sleep and high pre-sleep arousal, indicative of insomnia. Given that these parents experience cognitive arousal and insomnia, it is recommended that parents' sleep problems are addressed and treated in clinical settings.
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Affiliation(s)
- Prerna Varma
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Russell Conduit
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Moira Junge
- Sleep Health Foundation, Blacktown, Sydney, Australia
| | - Melinda L Jackson
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, Melbourne, Australia
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Low T, Conduit R, Varma P, Meaklim H, Jackson ML. Treating subclinical and clinical symptoms of insomnia with a mindfulness-based smartphone application: A pilot study. Internet Interv 2020; 21:100335. [PMID: 32939342 PMCID: PMC7479350 DOI: 10.1016/j.invent.2020.100335] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 06/08/2020] [Accepted: 06/08/2020] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND/OBJECTIVES Emerging research suggests that face-to-face group mindfulness-based therapies are an effective intervention for insomnia. This pilot study examined the effectiveness of a mindfulness-based smartphone application for improving objectively-measured sleep, self-reported sleep, insomnia severity, pre-sleep arousal and daytime mood. METHOD A community sample of 23 adults with subclinical to moderately severe symptoms of insomnia were randomized to either a mindfulness or progressive muscle relaxation (PMR) smartphone application for 40 or 60 days. Objective sleep outcomes assessed using actigraphy, and self-report measures of total wake time, cognitive and somatic pre-sleep arousal, and daytime positive and negative affect were assessed for 14 nights at baseline and post-intervention. Insomnia severity was recorded at baseline and post-intervention. RESULTS A greater reduction in sleep onset latency was observed in the mindfulness group over time, relative to the PMR group. The mindfulness group also reported medium effect size improvements for sleep efficiency. No significant interaction effects were found for self-reported sleep measures, however, main effects of time were found for both groups for total wake time, insomnia severity, cognitive pre-sleep arousal, and daytime positive and negative affect. CONCLUSIONS These preliminary findings suggest that both mindfulness and PMR smartphone applications have the potential to improve symptoms of insomnia. In particular, this mindfulness-based smartphone application may improve sleep onset latency and reduce the duration of night-awakenings. Further research exploring digital therapeutics as a self-help option for those with insomnia is needed.
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Key Words
- ANOVA, analysis of variance
- ISI, Insomnia Severity Index
- MBSR, mindfulness-based stress reduction
- Mindfulness
- NA, negative affect
- PA, positive affect
- PMR, progressive muscle relaxation
- PSAS (Cog), cognitive subscale of Pre-Sleep Arousal Scale
- PSAS (Som), somatic subscale of Pre-Sleep Arousal Scale
- PSAS, Pre-Sleep Arousal Scale
- Pre-sleep arousal
- Progressive muscle relaxation
- SFI, sleep fragmentation index
- SOL, sleep onset latency
- Sleep
- Smartphone applications
- TIB, time in bed
- TST, total sleep time
- TWT, total wake time
- WASO, wake after sleep onset
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Affiliation(s)
- Tiffany Low
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Russell Conduit
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Prerna Varma
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Australia
| | - Hailey Meaklim
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Australia
| | - Melinda L. Jackson
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Australia
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Mandavdhare HS, Samanta J, Varma P, Kumar-M P, Gupta P, Singh H, Dutta U, Kochhar R. Per oral endoscopic myotomy with fundoplication is a technically feasible NOTES for achalasia cardia. MINIM INVASIV THER 2020; 31:319-324. [PMID: 32608297 DOI: 10.1080/13645706.2020.1783320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Background: Per-oral endoscopic myotomy (POEM) has become the standard of care for the endoscopic management of achalasia but its major long-term adverse effect has been the development of reflux-associated symptoms and sequelae.Aim: This study was conducted to assess the feasibility and reproducibility of the technique of POEM with fundoplication (POEM + F), a pure Natural Orifice Transluminal Endoscopic Surgery (NOTES) procedure in achalasia.Material and methods: Between November 2019 and January 2020, three patients with achalasia cardia were subjected to POEM + F. Various parameters such as technical feasibility, procedure time, adverse events and post-procedure follow-up were noted.Results: POEM + F was successfully completed in all three patients. Other than intra-operative capno-peritoneum, no major adverse events were noted. On follow-up at one month, maintenance of wrap was noted.Conclusion: POEM + F is a technically feasible and a reproducible pure NOTES procedure.
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Affiliation(s)
- Harshal S Mandavdhare
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Jayanta Samanta
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Prerna Varma
- Department of Anesthesiology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Praveen Kumar-M
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Pankaj Gupta
- Department of Radiodiagnosis, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Harjeet Singh
- Department of Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Usha Dutta
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Rakesh Kochhar
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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BAJPAI G, Varma P. SAT-226 PERMCATH FOR HEMODIALYSIS- HOW GOOD OR BAD - SINGLE CENTRE EXPERIENCE FROM INDIA. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Varma P, Jackson M, Junge M, Conduit R. Exploring sleep concordance and night-wake associations in parent-child dyads using actigraphy. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.1115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Affiliation(s)
- Prerna Varma
- Casual Academic and PhD Candidate RMIT Sleep Laboratory, Discipline of Psychology, School of Biomedical and Health Sciences RMIT University Melbourne Australia
- Co‐Chair Insomnia and Sleep Health Council for the Australasian Sleep Association Blacktown Australia
| | - Melinda L. Jackson
- Senior Lecturer, Turner Institute for Brain and Mental Health School of Psychological Sciences, Monash University Clayton/Melbourne Australia
- Co‐Chair Chronobiology Council for the Australasian Sleep Association Blacktown Australia
| | - Hailey Meaklim
- Casual Academic and PhD Candidate RMIT Sleep Laboratory, Discipline of Psychology, School of Biomedical and Health Sciences RMIT University Melbourne Australia
- Co‐Chair Insomnia and Sleep Health Council for the Australasian Sleep Association Blacktown Australia
- Sleep Centre, Department of Respiratory and Sleep Medicine St Vincent’s Hospital Melbourne Australia
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Varma P, Paul E, Huang C, Headon B, Sparrow MP. A retrospective comparison of infliximab versus adalimumab as induction and maintenance therapy for Crohn disease. Intern Med J 2017; 46:798-804. [PMID: 26865349 DOI: 10.1111/imj.13040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 12/23/2015] [Accepted: 01/21/2016] [Indexed: 12/18/2022]
Abstract
BACKGROUND In Australia, infliximab (IFX) and adalimumab (ADA) are available for the treatment of moderate-severe Crohn disease (CD) refractory to conventional therapies, with minimal local data comparing their efficacy. AIM The aim of this study was to compare clinical and biochemical outcomes at 3 and 12 months between patients receiving induction and maintenance therapy with IFX versus ADA. METHODS Retrospective single-centre audit of all patients commenced on IFX or ADA as their first anti-tumour necrosis factor agent between July 2007 and May 2012. Clinical and biochemical parameters were compared pre-commencement, 3 and 12 months post-commencement. RESULTS A total of 81 patients was included in the study; 63 IFX-treated and 18 ADA-treated. Significant Crohn disease activity index (CDAI) reductions were noted within both groups at 3 months (P < 0.001) and 12 months (P < 0.001). Similarly, significant reductions were noted in steroid doses within groups at 3 months (P < 0.05) and 12 months (P < 0.05), with notable reductions in C-reactive protein (CRP) at 3 months within groups (P < 0.05). Adverse events occurred in 14.3% of IFX and 11.1% of ADA patients. Comparing IFX with ADA, no difference was shown between groups in CDAI reductions at 3 months (P = 0.94) and 12 months (P = 0.95), steroid dosing at 3 months (P = 0.23) and 12 months (P = 0.81), and CRP reduction at 3 months (P = 0.33) and 12 months (P = 0.62). Fistula-related admissions were significantly reduced in IFX patients (100% reduction post-IFX vs 66.7% post-ADA) (P = 0.01). CONCLUSION Clinical and biochemical outcomes were similar in patients treated with IFX or ADA as induction and maintenance therapy for CD. However, significant reductions were noted in admissions relating to fistulising disease in IFX patients.
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Affiliation(s)
- P Varma
- Department of Gastroenterology, Monash Health, Melbourne, Victoria, Australia
| | - E Paul
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.,Clinical Haematology Department, Alfred Health, Melbourne, Victoria, Australia
| | - C Huang
- Department of Medicine, Austin Health, Melbourne, Victoria, Australia
| | - B Headon
- Department of Gastroenterology, Alfred Health, Melbourne, Victoria, Australia
| | - M P Sparrow
- Department of Gastroenterology, Alfred Health, Melbourne, Victoria, Australia
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Sharma A, Subramaniam R, Misra M, Joshiraj B, Krishnan G, Varma P, Kishore S. Anesthetic management of emergent laparoscopic bilateral adrenalectomy in a patient with a life-threatening cortisol crisis. ACTA ACUST UNITED AC 2015; 4:15-8. [PMID: 25611000 DOI: 10.1213/xaa.0000000000000110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Cushing syndrome may rarely present with life-threatening hypercortisolism, manifested by hypertension, hypokalemia, hyperglycemia, and edema. If medical treatment proves ineffective in ameliorating the symptoms, emergent rescue adrenalectomy may be the only way to relieve the crisis. We describe the anesthetic management of a patient with an ectopic adrenocorticotropic hormone-secreting tumor, whose condition was rapidly deteriorating due to severe cortisol excess, and emergent adrenalectomy was the only available therapeutic modality. Despite severe metabolic derangement, edema, and incipient respiratory failure, emergent bilateral laparoscopic adrenalectomy was performed and the patient improved sufficiently to undergo surgery for the ectopic lesion without incident.
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Affiliation(s)
- Ankur Sharma
- From the *Departments of Anesthesia, †Surgical Disciplines, ‡Anesthesiology, and §Endocrinology, All India Institute Medical Sciences, New Delhi, India
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Varma P, Darlong V, Pandey R, Garg R, Chandralekha, Punj J. Comparison of subarachnoid block with bupivacaine and bupivacaine with fentanyl on entropy and sedation: A prospective randomized double-blind study. J Anaesthesiol Clin Pharmacol 2014; 30:543-9. [PMID: 25425782 PMCID: PMC4234793 DOI: 10.4103/0970-9185.142854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND AIMS We studied the state entropy to monitor the sedative effect of subarachnoid block (SAB) using bupivacaine alone or combination of bupivacaine and fentanyl. The effect of use of fentanyl via the subarachnoid route on the sedation level was also studied using the entropy scores and the decrease in the requirement of propofol used as an adjuvant sedative drug. MATERIALS AND METHODS In this prospective randomized double-blind study, 30 patients of age 18-70 years requiring SAB were enrolled for the study. Patients with any known allergy to study drugs, contraindication for SAB, obesity, neurological or psychiatric disease on concurrent medication and refusal were excluded from the study. Patients were randomly allocated into two groups: Group C: SAB was administered with 2.5 mL (12.5 mg) of 0.5% hyperbaric bupivacaine; Group D: SAB was administered with 2.5 mL of 2 mL (10 mg) of 0.5% hyperbaric bupivacaine and 0.5 mL (25 μg) fentanyl. Propofol infusion was started if the state entropy (SE) value was ≥75, at the rate of 100 μg/kg/min till the SE value reaches in the range of 60-75 (recorded as onset time). Thereafter the infusion rate was titrated to maintain SE value between 60 and 75. The level of sedation was measured with SE and Ramsay sedation (RS) scale. RESULTS The demographic profile and baseline parameters, were comparable in two groups (P > 0.05). After SAB, decrease in SE and response entropy was noted in both the groups and fall was significant in Group D (P < 0.0001). The total propfol required in thew two groups were comparable being 3.97 ± 2.14 mg/kg in Group C and 3.41 ± 2.34 mg/kg in Group D (P = 0.342). The change in the mean RS values was from 1.17 ± 0.38 to 1.69 ± 0.47 in Group D (P = 0.06), whereas in Group C it was from 1.03 ± 0.18 to 1.43 ± 0.50 (P = 0.041) within 20 min of SAB. CONCLUSION Subarachnoid block causes sedation per se, but the level of sedation is not clinically significant and the sedation caused is not enough to avoid sedative agents for allaying anxiety in patients intraoperatively. The sedative effect of SAB was enhanced by adding intrathecal fentanyl probably because of better quality of SAB. SE showed good correlation with RS scaling system. Therefore, SE may be used as reliable tool to titrate sedation in patients undergoing surgery under SAB.
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Affiliation(s)
- Prerna Varma
- Department of Anesthesiology, All India Institute of Medical Sciences, New Delhi, India
| | - Vanlal Darlong
- Department of Anesthesiology, All India Institute of Medical Sciences, New Delhi, India
- Address for correspondence: Dr. Vanlal Darlong, Department of Anesthesiology, 5th Floor, Teaching Block, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110 029, India. E-mail: ,
| | - Ravinder Pandey
- Department of Anesthesiology, All India Institute of Medical Sciences, New Delhi, India
| | - Rakesh Garg
- Department of Anesthesiology, All India Institute of Medical Sciences, New Delhi, India
| | - Chandralekha
- Department of Anesthesiology, All India Institute of Medical Sciences, New Delhi, India
| | - Jyotsna Punj
- Department of Anesthesiology, All India Institute of Medical Sciences, New Delhi, India
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Varma P, Jayasekera C, Gibson RN, Stella DL, Nicoll AJ. The changing place of liver biopsy in clinical practice: an audit of an Australian tertiary hospital. Intern Med J 2014; 44:805-8. [DOI: 10.1111/imj.12503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 03/02/2014] [Indexed: 12/13/2022]
Affiliation(s)
- P. Varma
- Department of Gastroenterology and Hepatology; Royal Melbourne Hospital; Melbourne Victoria Australia
| | - C. Jayasekera
- Department of Gastroenterology and Hepatology; Royal Melbourne Hospital; Melbourne Victoria Australia
| | - R. N. Gibson
- Department of Radiology; University of Melbourne; Royal Melbourne Hospital; Melbourne Victoria Australia
| | - D. L. Stella
- Department of Radiology; University of Melbourne; Royal Melbourne Hospital; Melbourne Victoria Australia
| | - A. J. Nicoll
- Department of Gastroenterology and Hepatology; Royal Melbourne Hospital; Melbourne Victoria Australia
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Abstract
An eleven-year-old child presented with a history of gradually increasing left side neck swelling and snoring for the last 6 years. He was initially scheduled for biopsy and on a second occasion for transcervical excision of left parapharyngeal mass under general anesthesia. Examination showed a left lateral pharyngeal and tonsillar mass compressing the oropharyngeal airway. CT neck showed a soft tissue mass (7 × 6 × 9 cm) in the left retropharyngeal space causing a bulge in the oropharynx with lateral deviation of carotid artery and internal jugular vein. During the first anesthesia for the biopsy, oral fiberoptic bronchoscopy (FOB), direct laryngoscopy, and Glidescope video laryngoscopy failed to visualize the glottis and epiglottis. After repeated attempts, intubation was possible with direct laryngoscopic-guided oral FOB. Fifteen days later, for the definitive surgery, the glottis was visualized at the first attempt using a C-Mac video laryngoscope and endotracheal intubation was successful at the first attempt after laryngeal manipulation. We discuss the potential causes of failure of intubation with the other airway devices in this child.
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Affiliation(s)
- Renu Sinha
- Department of Anaesthesiology and intensive care, All India Institute of Medical Sciences, New Delhi, India
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Saxena SC, Singh A, Srivastava VK, Martolia DS, Varma P, Sharma RP. SP6-44 "An appropriate approach for RCH services delivery through incentive based female activist (ASHA) for rural area in Kanpur District, Uttar Pradesh, India". Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976q.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Crespo M, Collado S, Mir M, Hurtado S, Cao H, Barbosa F, Serra C, Hidalgo C, Faura A, Garcia de Lomas J, Montero M, Horcajada JP, Puig JM, Pascual J, Ulusal Okyay G, Uludag K, Sozen H, Arman D, Dalgic A, Guz G, Fraile P, Garcia-Cosmes P, Rosado C, Gonzalez C, Tabernero JM, Costa C, Saldan A, Astegiano S, Terlizzi ME, Messina M, Bergallo M, Segoloni G, Cavallo R, Schwarz A, Grosshennig A, Heim A, Broecker V, Haller H, Linnenweber S, Liborio AB, Mendoza TR, Esmeraldo RM, Oliveira MLMB, Nogueira Paes FJV, Silva Junior GB, Daher EF, Hodgson K, Baharani J, Fenton A, Baharani J, Mjoen G, Hartmann A, Reisaeter A, Midtvedt K, Dahle DO, Holdaas H, Shabir S, Lukacik P, Bevins A, Basnayake K, Bental A, Hughes RG, Cockwell P, Burrows R, Hutchison CA, Varma P, Kumar A, Hooda A, Badwal S, Barrios C, Mir M, Crespo M, Fumado L, Frances A, Puig JM, Horcajada JP, Arango O, Pascual J, Pawlik A, Chudek J, Kolonko A, Wilk J, Jalowiecki P, Wiecek A, Teplan V, Kralova-Lesna I, Mahrova A, Racek J, tollova M, Maggisano V, Caracciolo V, Solazzo A, Montanari M, Della Grotta F, Nakazawa D, Nishio S, Nakagaki T, Ishikawa Y, Ito M, Shibazaki S, Shimoda N, Miura M, Morita K, Nonomura K, Koike T, Locsey L, Seres I, Sztanek F, Harangi M, Padra J, Asztalos L, Paragh G, Rodriguez-Reimundes E, Soler-Pujol G, Diaz CH, Davalos-Michel M, Vilches AR, Laham G, Mjoen G, Stavem K, Midtvedt K, Norby G, Holdaas H, Tutal E, Canver B, Can S, Sezer S, Colak T, Kolonko A, Chudek J, Wiecek A, Paschoalin R, Barros X, Duran C, Torregrosa JV, Crespo M, Mir M, Barrios C, Faura A, Tellez E, Marin M, Puig JM, Pascual J, Smalcelj R, Smalcelj A, Claes K, Petit T, Bammens B, Kuypers D, Naesens M, Vanrenterghem Y, Evenepoel P, Gerhart MK, Colbus S, Seiler S, Grun O, Fliser D, Heine GH, Vincenti F, Grinyo J, Larsen C, Medina Pestana J, Vanrenterghem Y, Dong Y, Thomas D, Charpentier B, Luna E, Martinez R, Cerezo I, Ferreira F, Cubero J, Villa J, Martinez C, Garcia C, Rodrigo E, Santos L, Pinera C, Quintela E, Ruiz JC, Fernandez-Fresnedo G, Palomar R, Gomez-Alamillo C, Martin de Francisco AL, Arias M, Grinyo J, Nainan G, del Carmen Rial M, Steinberg S, Vincenti F, Dong Y, Thomas D, Kamar N, Durrbach A, Grinyo J, Vanrenterghem Y, Becker T, Florman S, Lang P, del Carmen Rial M, Schnitzler M, Duan T, Block A, Medina Pestana J, Sawosz M, Cieciura T, Durlik M, Perkowska A, Sikora P, Beck B, De Mauri A, Brambilla M, Stratta P, Chiarinotti D, De Leo M, Attou S, Arzour H, Boudrifa N, Mekhlouf N, Gaouar A, Merazga S, Kalem K, Haddoum F. Transplantation: clinical studies. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Qi X, Varma P, Newman D, Dorian P. Gap junction blockers decrease defibrillation thresholds without changes in ventricular refractoriness in isolated rabbit hearts. Circulation 2001; 104:1544-9. [PMID: 11571250 DOI: 10.1161/hc3801.095587] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The maintenance and termination of reentry arrhythmias are determined by tissue properties such as refractoriness and conduction velocity. Although the effects of Na(+) and K(+) channel block on electrophysiological properties and defibrillation threshold (DFT) have been studied, little is known about the effect of gap junction blockers on defibrillation and tissue electrophysiological properties. METHODS AND RESULTS Triplicate DFTs (volts) were obtained before and 15 minutes after 4 micromol/L 16-doxyl-stearic acid (16-DSA, n=8), 1 mmol/L 1-heptanol (n=12) (both gap junction blockers), 3 microg/mL lidocaine (a sodium channel blocker) (n=8), and respective controls (n=27) in isolated perfused rabbit hearts. DFT decreased after 16-DSA (23+/-14%, P<0.01) and 1-heptanol (21+/-16%, P<0.01) but increased after lidocaine (26+/-28%, P<0.05). Ventricular fibrillation cycle length (VFCL) and QRS duration increased after all 3 agents, by 36+/-19% and 44+/-16% (16-DSA), 87+/-42% and 49+/-15% (heptanol), and 57+/-20% and 43+/-26% (lidocaine), respectively (all P<0.01). Spatially averaged temporal VFCL dispersion decreased significantly after all 3 agents, by 47+/-42% (16-DSA, P<0.05), 74+/-19% (1-heptanol, P<0.01), and 82+/-13% (lidocaine, P<0.01), respectively. Ventricular effective refractory period and monophasic action potential duration at 90% repolarization were unchanged after 16-DSA and 1-heptanol (P=NS) but increased after lidocaine (16+/-13%, P<0.01, and 6+/-5%, P=NS, respectively). There were no significant changes in DFT or any other electrophysiological variable in control hearts. CONCLUSIONS Electrical uncoupling by 16-DSA and 1-heptanol significantly lowers DFT and dispersion of VFCL without altering refractoriness; lidocaine, at doses resulting in similar slowing of conduction, increases DFT.
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Affiliation(s)
- X Qi
- Department of Medicine, St Michael's Hospital, University of Toronto, Toronto, Ont, Canada
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van Dyck CH, Gelernter J, MacAvoy MG, Avery RA, Criden M, Okereke O, Varma P, Seibyl JP, Hoffer PB. Absence of an apolipoprotein E epsilon4 allele is associated with increased parietal regional cerebral blood flow asymmetry in Alzheimer disease. Arch Neurol 1998; 55:1460-6. [PMID: 9823831 DOI: 10.1001/archneur.55.11.1460] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND The apolipoprotein E (Apo E) epsilon4 allele has been associated with parietal metabolic abnormalities and asymmetries in asymptomatic subjects at risk for Alzheimer disease (AD). However, previous research has shown minimal effect of the epsilon4 allele on regional cerebral blood flow (rCBF) and metabolism in patients with probable AD. OBJECTIVE To determine whether the Apo E epsilon4 allele is associated with parietal rCBF abnormalities and asymmetries in patients with probable AD. PATIENTS AND METHODS Thirty patients with AD with the epsilon4 allele (epsilon4+ AD), 22 patients with AD without the epsilon4 allele (epsilon4- AD), and 14 healthy control subjects underwent single-photon emission computed tomography (SPECT) scanning with 740 MBq technetium Tc 99m hexamethylpropyleneamine oxime. Ratios of parietal-unaffected regions and a left-right parietal asymmetry index were compared between both patient groups. RESULTS The group with epsilon4- AD was younger (P = .005, Student t test) and had an earlier age of onset (P = .005) than the group with epsilon4+ AD. Analysis of covariance revealed no significant difference in the parietal rCBF ratio, controlling for age of onset and Mini-Mental State Examination score (F(1,48) = 0.06; P = .81). However, contrary to hypothesis, significantly greater parietal rCBF asymmetry was seen in patients with epsilon4- AD (mean +/- SD, 9.7% +/- 5.5%) than those with epsilon4+ AD (6.3% +/- 4.7%; F(1,50) = 5.89; P = .02; analysis of variance). When number of epsilon4 allele copies was considered, this effect appeared to accrue primarily from a difference between patients with 0 and with 2 epsilon4 allele copies. An exploratory analysis of multiple cortical structures suggested that this asymmetry extended to additional regions (superior temporal) and to combined association cortex. CONCLUSIONS Greater parietal rCBF asymmetry is involved in epsilon4- AD than in epsilon4+ AD. Lack of the epsilon4 allele may be associated with other (as yet undiscovered) genetic or environmental risk factors, which confer greater neuropathological asymmetry.
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Affiliation(s)
- C H van Dyck
- Alzheimer's Disease Research Unit, Yale University School of Medicine, New Haven, Conn 06520, USA.
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Chhabra S, Varma P. Cervical status as a predictor of preterm labour. J Indian Med Assoc 1992; 90:261-2. [PMID: 1287083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A study was conducted on 140 pregnant women at and after 28 weeks of pregnancy for finding out the relationship of cervical length and position with onset of preterm labour. Incidence of preterm labour was significantly higher (p < 0.001) in women with central position of cervix (54.67%) than that with posterior position of cervix (10.77%). Onset of preterm delivery was closely related to cervical length of 2.5 cm or less irrespective of central (82.75%) or posterior (20%) position of cervix (p < 0.001).
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Affiliation(s)
- S Chhabra
- Department of Obstetrics and Gynaecology, Mahatma Gandhi Institute of Medical Sciences, Sevagram, Wardha
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Misra NP, Varma P, Jain SC, Saify AQ, Bhagwat RR. Clinico-pathological and experimental study of epidemic dropsy. J Assoc Physicians India 1984; 32:943-7. [PMID: 6441799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Varma P, Tandon S, Mehrotra S. Maternal foetal calcium relationships in human beings. Indian J Med Sci 1981; 35:5-6. [PMID: 7251082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Wilson T, Litkowski L, Varma P, Surell J. Effects of T (temperature) and pH on the oxidation of glycerol to CO2 in rat renal cortical slices. Cryobiology 1979. [DOI: 10.1016/0011-2240(79)90175-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Srivastava US, Varma P. Mitosis in the haemocytes of Sarcophaga ruficornis (Diptera). Experientia 1979; 35:1457-8. [PMID: 510476 DOI: 10.1007/bf01962781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Among the haemocytes of Sarcophaga ruficornis, only the prohaemocytes divide. Injection of phytohaemagglutinin-P induces 100% prohaemocytes to undergo mitosis but does not induce mitosis in other cells. Mitotic stages other than the prophase are apparently very short lived.
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Tandon HC, Varma P, Bhatnagar VM. Antral motility response to passive limb joint movements in humans. Indian J Physiol Pharmacol 1979; 23:86-94. [PMID: 489101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Tejani A, Dobias B, Varma P. Intestinal laceration secondary to clamping of an occult omphalocele. Obstet Gynecol 1978; 52:483-5. [PMID: 714332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An omphalocele is a congenital defect of the abdominal wall, through which intestines and other intraabdominal organs protrude outside the abdominal cavity. The defect in the abdominal wall is covered by a translucent sac composed of peritoneum internally and amniotic membrane externally, through which the viscera can be seen. Such an anomaly is obvious and easily recognized at birth when the defect in the abdominal wall is large, but a small defect, also designated as umbilical cord hernia, is often unnoticed and may, when the cord is clamped, result in an iatrogenic laceration of the gut. We report such an encounter to alert the physician and suggest a method to prevent the iatrogenic misadventure. A careful follow-up of the child, including developmental evaluation, is presented and compared with her healthy twin. A review of the relevant literature shows that the anomaly is not rare and that there is often a delay of several days in establishing the correct diagnosis, leading to a fatal outcome in some cases.
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Matthews C, Nelson J, Varma P, Minard R. Deuterolysis of amino acid precursors: evidence for hydrogen cyanide polymers as protein ancestors. Science 1977; 198:622-5. [PMID: 21452 DOI: 10.1126/science.21452] [Citation(s) in RCA: 42] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Deuterolysis experiments suggest that hydrogen cyanide polymers rather than aminoacetonitriles are major precursors of alpha-amino acids obtained from spark reactions and other studies on chemical evolution. These results are consistent with the hypothesis that the original heteropolypeptides on the earth were synthesized spontaneously from hydrogen cyanide and water without the intervening formation of alpha-amino acids.
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Varma S, Varma P, Mehrotra S. Effects of increased pressure in the ventricular system of the brain on the cardiac rate in dogs. Indian J Med Res 1977; 66:507-12. [PMID: 598925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Srivastava RD, Kalitha M, Varma P, Bhatnagar VM. A mechanism of action of phenylephrine on heart. Indian J Physiol Pharmacol 1977; 21:167-74. [PMID: 612597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Phenylephrine exerted a positive chronotropic and inotropic effect on isolated, spontaneously beating, atria of reserpinised rabbits. Addition of phenoxybenzamine and phentolamine resulted in a depression of control contractile amplitude. Practolol, however, was devoid of this effect. The positive inotropic response to phenylephrine was significantly antagonised by all the three blockers used, while positive chronotropic response was annulled by phentolamine and practolol, but not with phenoxybenzamine. It is, therefore, suggested that phenylephrine exerts its cardiostimulant effects through mediation of both alpha and beta-1 adrenoceptors. A probable mechanism of action could be, that phenylephrine acts on some specific chemical group, shared by alpha and beta1 receptors. This specific group is probably blocked by both alpha and betaceptor antagonists separately, so phenylephrine becomes ineffective in presence of these antagonists.
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Srivastava RD, Kalitha M, Varma P, Bhatnager VM. Negative inotropic effect of sympathomimetic amines in rabbit atria. Indian J Physiol Pharmacol 1977; 21:163-4. [PMID: 885605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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