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van Ierssel JJ, Galea O, Holte K, Luszawski C, Jenkins E, O'Neil J, Emery CA, Mannix R, Schneider K, Yeates KO, Zemek R. How completely are randomized controlled trials of non-pharmacological interventions following concussion reported? A systematic review. JOURNAL OF SPORT AND HEALTH SCIENCE 2024; 13:537-547. [PMID: 37619783 PMCID: PMC11184319 DOI: 10.1016/j.jshs.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/20/2023] [Accepted: 07/12/2023] [Indexed: 08/26/2023]
Abstract
PURPOSE The study aimed to examine the reporting completeness of randomized controlled trials (RCTs) of non-pharmacological interventions following concussion. METHODS We searched MEDLINE, Embase, PsycInfo, CINAHL, and Web of Science up to May 2022. Two reviewers independently screened studies and assessed reporting completeness using the Template for Intervention Description and Replication (TIDieR), Consensus on Exercise Reporting Template (CERT), and international Consensus on Therapeutic Exercise aNd Training (i-CONTENT) checklists. Additional information was sought my study authors where reporting was incomplete. Risk of bias (ROB) was assessed with the Cochrane ROB-2 Tool. RCTs examining non-pharmacological interventions following concussion. RESULTS We included 89 RCTs (n = 53 high ROB) examining 11 different interventions for concussion: sub-symptom threshold aerobic exercise, cervicovestibular therapy, physical/cognitive rest, vision therapy, education, psychotherapy, hyperbaric oxygen therapy, transcranial magnetic stimulation, blue light therapy, osteopathic manipulation, and head/neck cooling. Median scores were: TIDieR 9/12 (75%; interquartile range (IQR) = 5; range: 5-12), CERT 17/19 (89%; IQR = 2; range: 10-19), and i-CONTENT 6/7 (86%; IQR = 1; range: 5-7). Percentage of studies completely reporting all items was TIDieR 35% (31/89), CERT 24% (5/21), and i-CONTENT 10% (2/21). Studies were more completely reported after publication of TIDieR (t87 = 2.08; p = 0.04) and CERT (t19 = 2.72; p = 0.01). Reporting completeness was not strongly associated with journal impact factor (TIDieR: rs = 0.27; p = 0.01; CERT: rs = -0.44; p = 0.06; i-CONTENT: rs = -0.17; p = 0.48) or ROB (TIDieR: rs = 0.11; p = 0.31; CERT: rs = 0.04; p = 0.86; i-CONTENT: rs = 0.12; p = 0.60). CONCLUSION RCTs of non-pharmacological interventions following concussion demonstrate moderate to good reporting completeness, but are often missing key components, particularly modifications, motivational strategies, and qualified supervisor. Reporting completeness improved after TIDieR and CERT publication, but publication in highly cited journals and low ROB do not guarantee reporting completeness.
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Affiliation(s)
| | - Olivia Galea
- The Centre for Health, Activity and Rehabilitation Research, University of Otago, Dunedin 9016, New Zealand
| | - Kirsten Holte
- Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, Canada; Alberta Children's Hospital Research Institute; University of Calgary, Calgary, AB T2N 1N4, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Caroline Luszawski
- Alberta Children's Hospital Research Institute; University of Calgary, Calgary, AB T2N 1N4, Canada; Department of Psychology, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Elizabeth Jenkins
- Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Jennifer O'Neil
- School of Rehabilitation Sciences, University of Ottawa, Ottawa, ON K1H 8M5, Canada; Bruyère Research Institute, Ottawa, ON K1N 5C8, Canada
| | - Carolyn A Emery
- Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, Canada; Alberta Children's Hospital Research Institute; University of Calgary, Calgary, AB T2N 1N4, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Rebekah Mannix
- Departments of Pediatrics and Emergency Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Kathryn Schneider
- Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, Canada; Alberta Children's Hospital Research Institute; University of Calgary, Calgary, AB T2N 1N4, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Keith Owen Yeates
- Department of Psychology, University of Calgary, Calgary, AB T2N 1N4, Canada; Alberta Children's Hospital Research Institute; University of Calgary, Calgary, AB T2N 1N4, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Roger Zemek
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, ON K1H 8L1, Canada; Departments of Pediatrics and Emergency Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
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Schimmel S, El Sayed B, Lockard G, Gordon J, Young I, D’Egidio F, Lee JY, Rodriguez T, Borlongan CV. Identifying the Target Traumatic Brain Injury Population for Hyperbaric Oxygen Therapy. Int J Mol Sci 2023; 24:14612. [PMID: 37834059 PMCID: PMC10572450 DOI: 10.3390/ijms241914612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Traumatic brain injury (TBI) results from direct penetrating and indirect non-penetrating forces that alters brain functions, affecting millions of individuals annually. Primary injury following TBI is exacerbated by secondary brain injury; foremost is the deleterious inflammatory response. One therapeutic intervention being increasingly explored for TBI is hyperbaric oxygen therapy (HBOT), which is already approved clinically for treating open wounds. HBOT consists of 100% oxygen administration, usually between 1.5 and 3 atm and has been found to increase brain oxygenation levels after hypoxia in addition to decreasing levels of inflammation, apoptosis, intracranial pressure, and edema, reducing subsequent secondary injury. The following review examines recent preclinical and clinical studies on HBOT in the context of TBI with a focus on contributing mechanisms and clinical potential. Several preclinical studies have identified pathways, such as TLR4/NF-kB, that are affected by HBOT and contribute to its therapeutic effect. Thus far, the mechanisms mediating HBOT treatment have yet to be fully elucidated and are of interest to researchers. Nonetheless, multiple clinical studies presented in this review have examined the safety of HBOT and demonstrated the improved neurological function of TBI patients after HBOT, deeming it a promising avenue for treatment.
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Affiliation(s)
- Samantha Schimmel
- Morsani College of Medicine, University of South Florida, 560 Channelside Dr., Tampa, FL 33602, USA; (S.S.); (B.E.S.); (G.L.); (J.G.)
| | - Bassel El Sayed
- Morsani College of Medicine, University of South Florida, 560 Channelside Dr., Tampa, FL 33602, USA; (S.S.); (B.E.S.); (G.L.); (J.G.)
| | - Gavin Lockard
- Morsani College of Medicine, University of South Florida, 560 Channelside Dr., Tampa, FL 33602, USA; (S.S.); (B.E.S.); (G.L.); (J.G.)
| | - Jonah Gordon
- Morsani College of Medicine, University of South Florida, 560 Channelside Dr., Tampa, FL 33602, USA; (S.S.); (B.E.S.); (G.L.); (J.G.)
| | | | - Francesco D’Egidio
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA; (F.D.); (J.Y.L.)
| | - Jea Young Lee
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA; (F.D.); (J.Y.L.)
| | - Thomas Rodriguez
- School of Medicine, Loma Linda University, 11175 Campus St., Loma Linda, CA 92350, USA;
| | - Cesar V. Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA; (F.D.); (J.Y.L.)
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Wright B, Guilliod R, Thakur B, Kundig C, Morales J, Tessler J, Berry J, Zhang R, Bell KR, Pinto SM. Hyperbaric Oxygen Therapy versus placebo for post-concussion syndrome (HOT-POCS): A randomized, double-blinded controlled pilot study. Contemp Clin Trials Commun 2023; 34:101176. [PMID: 37416626 PMCID: PMC10320499 DOI: 10.1016/j.conctc.2023.101176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 07/08/2023] Open
Abstract
Post-Concussion Syndrome (PCS) refers to the persistence of physical, cognitive, and emotional symptoms following mild traumatic brain injury (mTBI)/concussion, occurring in roughly 15-30% of individuals. Hyperbaric oxygen therapy (HBOT) has been suggested as a potential treatment for PCS; however, the evidence to date is mixed due to inconsistencies in the treatment protocol and focus on veterans with combat-related injuries, which may not be generalizable to the general population. The goal of Hyperbaric Oxygen Therapy for Post-Concussion Syndrome (HOT-POCS) is to assess the efficacy and safety of HBOT for the treatment of PCS in the civilian population. This randomized, controlled pilot study will be using a standardized HBOT protocol (20 sessions of 100% O2 at 2.0 atm absolute [ATA]) compared with a true placebo gas system that mimics the oxygen composition at room air (20 sessions of 10.5% O2 and 89.5% nitrogen at 2.0 ATA) in a cohort of 100 adults with persistent post-concussive symptoms 3-12 months following injury. Change in symptoms on the Rivermead Post-concussion Questionnaire (RPQ) will be the primary outcome of interest. Secondary outcomes include the rate of adverse events, change in the quality of life, and change in cognitive function. Exploratory outcome measures will include changes in physical function and changes in cerebral brain perfusion and oxygen metabolism on MRI brain imaging. Overall, the HOT-POCS study will compare the efficacy of a standardized HBOT treatment protocol against a true placebo gas for the treatment of PCS within 12 months after injury.
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Affiliation(s)
- Brittany Wright
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Renie Guilliod
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Anesthesiology and Pain Management, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Bhaskar Thakur
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Family and Community Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Charles Kundig
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jill Morales
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Joseph Tessler
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - James Berry
- Department of Anesthesiology and Pain Management, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Rong Zhang
- Departments of Neurology and Internal Medicine, University of Texas Southwestern Medical Center, Director of Cerebrovascular Laboratory, Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Dallas, Dallas, TX, USA
| | - Kathleen R. Bell
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Shanti M. Pinto
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, TX, USA
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Shaib F. Neurologic Disorders in Women and Sleep. Neurol Clin 2023; 41:297-314. [PMID: 37030959 DOI: 10.1016/j.ncl.2023.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Sleep disorders in women remain underrecognized and underdiagnosed mainly because of gender bias in researching and characterizing sleep disorders in women. Symptoms of common sleep disorders are frequently missed in the general female population and are expected to be further overlooked because of overlapping symptoms in women with neurologic disorders. Given the bidirectional relationship with sleep and neurologic disorders, it remains critical to be aware of the presentation and impact of sleep disorders in this patient population. This article reviews available data on sleep disorders in women with neurologic disorders and discusses their distinctive features.
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Affiliation(s)
- Fidaa Shaib
- Pulmonary, Critical Care, and Sleep Medicine, Baylor College of Medicine, McNair Campus, 7200 Cambridge Street, Houston, TX 77030, USA.
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Zafonte RD, Wang L, Arbelaez CA, Dennison R, Teng YD. Medical Gas Therapy for Tissue, Organ, and CNS Protection: A Systematic Review of Effects, Mechanisms, and Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104136. [PMID: 35243825 PMCID: PMC9069381 DOI: 10.1002/advs.202104136] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/10/2022] [Indexed: 05/13/2023]
Abstract
Gaseous molecules have been increasingly explored for therapeutic development. Here, following an analytical background introduction, a systematic review of medical gas research is presented, focusing on tissue protections, mechanisms, data tangibility, and translational challenges. The pharmacological efficacies of carbon monoxide (CO) and xenon (Xe) are further examined with emphasis on intracellular messengers associated with cytoprotection and functional improvement for the CNS, heart, retina, liver, kidneys, lungs, etc. Overall, the outcome supports the hypothesis that readily deliverable "biological gas" (CO, H2 , H2 S, NO, O2 , O3 , and N2 O) or "noble gas" (He, Ar, and Xe) treatment may preserve cells against common pathologies by regulating oxidative, inflammatory, apoptotic, survival, and/or repair processes. Specifically, CO, in safe dosages, elicits neurorestoration via igniting sGC/cGMP/MAPK signaling and crosstalk between HO-CO, HIF-1α/VEGF, and NOS pathways. Xe rescues neurons through NMDA antagonism and PI3K/Akt/HIF-1α/ERK activation. Primary findings also reveal that the need to utilize cutting-edge molecular and genetic tactics to validate mechanistic targets and optimize outcome consistency remains urgent; the number of neurotherapeutic investigations is limited, without published results from large in vivo models. Lastly, the broad-spectrum, concurrent multimodal homeostatic actions of medical gases may represent a novel pharmaceutical approach to treating critical organ failure and neurotrauma.
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Affiliation(s)
- Ross D. Zafonte
- Department of Physical Medicine and RehabilitationHarvard Medical SchoolBostonMA02115USA
- Neurotrauma Recovery Research, Department of Physical Medicine and RehabilitationSpaulding Rehabilitation Hospital Network, Mass General Brigham, and Harvard Medical SchoolBostonMA02129USA
- Spaulding Research InstituteSpaulding Rehabilitation Hospital NetworkBostonMA02129USA
| | - Lei Wang
- Department of Physical Medicine and RehabilitationHarvard Medical SchoolBostonMA02115USA
- Laboratory of SCI, Stem Cell and Recovery Neurobiology Research, Department of Physical Medicine and RehabilitationSpaulding Rehabilitation Hospital Network, Mass General Brigham, and Harvard Medical SchoolBostonMA02129USA
| | - Christian A. Arbelaez
- Department of Physical Medicine and RehabilitationHarvard Medical SchoolBostonMA02115USA
- Laboratory of SCI, Stem Cell and Recovery Neurobiology Research, Department of Physical Medicine and RehabilitationSpaulding Rehabilitation Hospital Network, Mass General Brigham, and Harvard Medical SchoolBostonMA02129USA
| | - Rachel Dennison
- Department of Physical Medicine and RehabilitationHarvard Medical SchoolBostonMA02115USA
- Laboratory of SCI, Stem Cell and Recovery Neurobiology Research, Department of Physical Medicine and RehabilitationSpaulding Rehabilitation Hospital Network, Mass General Brigham, and Harvard Medical SchoolBostonMA02129USA
| | - Yang D. Teng
- Department of Physical Medicine and RehabilitationHarvard Medical SchoolBostonMA02115USA
- Neurotrauma Recovery Research, Department of Physical Medicine and RehabilitationSpaulding Rehabilitation Hospital Network, Mass General Brigham, and Harvard Medical SchoolBostonMA02129USA
- Spaulding Research InstituteSpaulding Rehabilitation Hospital NetworkBostonMA02129USA
- Laboratory of SCI, Stem Cell and Recovery Neurobiology Research, Department of Physical Medicine and RehabilitationSpaulding Rehabilitation Hospital Network, Mass General Brigham, and Harvard Medical SchoolBostonMA02129USA
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Treating sleep disorders following traumatic brain injury in adults: time for renewed effort? Sleep Med Rev 2022; 63:101631. [DOI: 10.1016/j.smrv.2022.101631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 11/21/2022]
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Harch PG. Systematic Review and Dosage Analysis: Hyperbaric Oxygen Therapy Efficacy in Mild Traumatic Brain Injury Persistent Postconcussion Syndrome. Front Neurol 2022; 13:815056. [PMID: 35370898 PMCID: PMC8968958 DOI: 10.3389/fneur.2022.815056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/18/2022] [Indexed: 11/17/2022] Open
Abstract
Background Mild traumatic brain injury results in over 15% of patients progressing to Persistent Postconcussion Syndrome, a condition with significant consequences and limited treatment options. Hyperbaric oxygen therapy has been applied to Persistent Postconcussion Syndrome with conflicting results based on its historical understanding/definition as a disease-specific therapy. This is a systematic review of the evidence for hyperbaric oxygen therapy (HBOT) in Persistent Postconcussion Syndrome using a dose-analysis that is based on the scientific definition of hyperbaric oxygen therapy as a dual-component drug composed of increased barometric pressure and hyperoxia. Methods In this review, PubMed, CINAHL, and the Cochrane Systematic Review Database were searched from August 8–22, 2021 for all adult clinical studies published in English on hyperbaric oxygen therapy in mild traumatic brain injury Persistent Postconcussion Syndrome (symptoms present at least 3 months). Randomized trials and studies with symptomatic and/or cognitive outcomes were selected for final analysis. Randomized trials included those with no-treatment control groups or control groups defined by either the historical or scientific definition. Studies were analyzed according to the dose of oxygen and barometric pressure and classified as Levels 1–5 based on significant immediate post-treatment symptoms or cognitive outcomes compared to control groups. Levels of evidence classifications were made according to the Centre for Evidence-Based Medicine and a practice recommendation according to the American Society of Plastic Surgeons. Methodologic quality and bias were assessed according to the PEDro Scale. Results Eleven studies were included: six randomized trials, one case-controlled study, one case series, and three case reports. Whether analyzed by oxygen, pressure, or composite oxygen and pressure dose of hyperbaric therapy statistically significant symptomatic and cognitive improvements or cognitive improvements alone were achieved for patients treated with 40 HBOTS at 1.5 atmospheres absolute (ATA) (four randomized trials). Symptoms were also improved with 30 treatments at 1.3 ATA air (one study), positive and negative results were obtained at 1.2 ATA air (one positive and one negative study), and negative results in one study at 2.4 ATA oxygen. All studies involved <75 subjects/study. Minimal bias was present in four randomized trials and greater bias in 2. Conclusion In multiple randomized and randomized controlled studies HBOT at 1.5 ATA oxygen demonstrated statistically significant symptomatic and cognitive or cognitive improvements alone in patients with mild traumatic brain injury Persistent Postconcussion Syndrome. Positive and negative results occurred at lower and higher doses of oxygen and pressure. Increased pressure within a narrow range appears to be the more important effect than increased oxygen which is effective over a broad range. Improvements were greater when patients had comorbid Post Traumatic Stress Disorder. Despite small sample sizes, the 1.5 ATA HBOT studies meet the Centre for Evidence-Based Medicine Level 1 criteria and an American Society of Plastic Surgeons Class A Recommendation for HBOT treatment of mild traumatic brain injury persistent postconcussion syndrome.
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Montgomery MC, Baylan S, Gardani M. Prevalence of insomnia and insomnia symptoms following mild-traumatic brain injury: A systematic review and meta-analysis. Sleep Med Rev 2021; 61:101563. [PMID: 35033968 DOI: 10.1016/j.smrv.2021.101563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 12/17/2022]
Abstract
Sleep is commonly disrupted following mild traumatic brain injury (mTBI), however there is a lack of consensus in the existing literature regarding the prevalence of insomnia/insomnia symptoms after injury. The aim of this review was to conduct a systematic review and meta-analysis of insomnia and insomnia symptoms' prevalence following mTBI. Full-text articles published in English in peer-reviewed journals, including adults with a clinical or self-reported mild traumatic brain injury diagnosis, were eligible for inclusion. Studies that assessed insomnia/insomnia symptoms after injury were included. Of the 2091 records identified, 20 studies were included in the review. 19 of these were meta-analysed (n = 95,195), indicating high heterogeneity among studies. Subgroup analyses indicated pooled prevalence estimates of post-mTBI insomnia disorder of 27.0% (95% CI 6.49-54.68) and insomnia symptoms of 71.7% (95% CI 60.31-81.85). The prevalence of insomnia is significantly higher in individuals who have sustained mild traumatic brain injury compared to prevalence estimates reported in the general population but high heterogeneity and methodological differences among studies make it difficult to provide reliable prevalence estimates. Future research should continue to advance our understanding of the onset, progression and impact of post-mild traumatic brain injury insomnia to promote the recovery and wellbeing of affected individuals. PROSPERO registration CRD42020168563.
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Affiliation(s)
| | - Satu Baylan
- Institute of Health and Wellbeing, University of Glasgow, UK
| | - Maria Gardani
- School of Health in Social Science, University of Edinburgh, UK.
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Babu Henry Samuel I, Breneman CB, Chun T, Hamedi A, Murphy R, Barrett JP. Compounding Effects of Traumatic Brain Injury, Military Status, and Other Factors on Pittsburgh Sleep Quality Index: A Meta-analysis. Mil Med 2021; 187:e589-e597. [PMID: 34557901 DOI: 10.1093/milmed/usab377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 07/22/2021] [Accepted: 09/20/2021] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION Traumatic brain injury (TBI) or concussion is a known risk factor for multiple adverse health outcomes, including disturbed sleep. Although prior studies show adverse effects of TBI on sleep quality, its compounding effect with other factors on sleep is unknown. This meta-analysis aimed to quantify the effects of TBI on subjective sleep quality in the context of military status and other demographic factors. MATERIALS AND METHODS A programmatic search of PubMed database from inception to June 2020 was conducted to identify studies that compared subjective sleep quality measured using Pittsburgh Sleep Quality Index (PSQI) in individuals with TBI relative to a control group. The meta-analysis included group-wise standard mean difference (SMD) and 95% CI. Pooled means and SDs were obtained for TBI and non-TBI groups with and without military service, and meta-regression was conducted to test for group effects. Exploratory analysis was performed to test for the effect of TBI, non-head injury, military status, sex, and age on sleep quality across studies. RESULTS Twenty-six articles were included, resulting in a combined total of 5,366 individuals (2,387 TBI and 2,979 controls). Overall, individuals with TBI self-reported poorer sleep quality compared to controls (SMD = 0.63, 95% CI: 0.45 to 0.80). Subgroup analysis revealed differences in the overall effect of TBI on PSQI, with a large effect observed in the civilian subgroup (SMD: 0.80, 95% CI: 0.57 to 1.03) and a medium effect in the civilian subgroup with orthopedic injuries (SMD: 0.40, 95% CI: 0.13 to 0.65) and military/veteran subgroup (SMD: 0.43, 95% CI: 0.14 to 0.71). Exploratory analysis revealed that age and history of military service significantly impacted global PSQI scores. CONCLUSIONS Poor sleep quality in TBI cohorts may be due to the influence of multiple factors. Military/veteran samples had poorer sleep quality compared to civilians even in the absence of TBI, possibly reflecting unique stressors associated with prior military experiences and the sequelae of these stressors or other physical and/or psychological traumas that combine to heightened vulnerability. These findings suggest that military service members and veterans with TBI are particularly at a higher risk of poor sleep and its associated adverse health outcomes. Additional research is needed to identify potential exposures that may further heighten vulnerability toward poorer sleep quality in those with TBI across both civilian and military/veteran populations.
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Affiliation(s)
- Immanuel Babu Henry Samuel
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD 20817, USA.,Department of Veterans Affairs, War Related Illness and Injury Study Center (WRIISC), Washington, DC 20422, USA
| | - Charity B Breneman
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD 20817, USA.,Department of Veterans Affairs, War Related Illness and Injury Study Center (WRIISC), Washington, DC 20422, USA
| | - Timothy Chun
- Department of Veterans Affairs, War Related Illness and Injury Study Center (WRIISC), Washington, DC 20422, USA
| | - Arghavan Hamedi
- Department of Veterans Affairs, War Related Illness and Injury Study Center (WRIISC), Washington, DC 20422, USA
| | - Rayelynn Murphy
- Cardiometabolic Health Unit, Washington DC VA Medical Center, Washington, DC 20422, USA
| | - John P Barrett
- Department of Veterans Affairs, War Related Illness and Injury Study Center (WRIISC), Washington, DC 20422, USA.,Department of Preventive Medicine and Biostatistics, Uniformed Services University, Bethesda, MD 20814, USA
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Moore L, Eggleton P, Smerdon G, Newcombe J, Holley JE, Gutowski NJ, Smallwood M. Engagement of people with multiple sclerosis to enhance research into the physiological effect of hyperbaric oxygen therapy. Mult Scler Relat Disord 2020; 43:102084. [PMID: 32442882 DOI: 10.1016/j.msard.2020.102084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/29/2020] [Accepted: 03/30/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND Thousands of people with multiple sclerosis (MS) have used self-administered oxygen therapy in the UK. Clinical trials have been performed, with scant evidence that people with MS have been consulted to explore how they benefit from or how to optimize this treatment. The conventional MS disease disability scores used in trials seldom reflect the effects individuals report when using oxygen therapy to treat their symptoms. METHODS Three people with MS and the manager of an MS Centre formed a public involvement group and collaborated with clinicians and scientists to inform a lab-based study to investigate the physiological effects of oxygen therapy on microvascular brain endothelial cells. RESULTS People with MS often use oxygen therapy at a later stage when their symptoms worsen and only after using other treatments. The frequency of oxygen therapy sessions and hyperbaric pressure is individualized and varies for people with MS. Despite direct comparisons of efficacy proving difficult, most individuals are exposed to 100% O2 at 1.5 atmosphere absolute (ATA; 1140 mmHg absolute) for 60 min. In a laboratory-based study human brain endothelial cells were exposed in vitro to 152 mmHg O2 for 60 min with and without pressure, as this equates to 20% O2 achievable via hyperbarics, which was then replicated at atmospheric pressure. A significant reduction in endothelial cells ICAM-1 (CD54) implicated in inflammatory cell margination across the blood brain barrier was observed under oxygen treatment. CONCLUSIONS By collaborating with people living with MS, we were able to design laboratory-based experimental protocols that replicate their treatment regimens to advance our understanding of the physiological effects of hyperbaric oxygen treatment on brain cells and their role in neuroinflammation.
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Affiliation(s)
- Lucy Moore
- Institute of Biomedical and Clinical Sciences, College of Medicine & Healthcare, University of Exeter, Exeter, UK; Royal Devon and Exeter Hospital Foundation Trust, Exeter, UK
| | - Paul Eggleton
- Institute of Biomedical and Clinical Sciences, College of Medicine & Healthcare, University of Exeter, Exeter, UK; Royal Devon and Exeter Hospital Foundation Trust, Exeter, UK.
| | - Gary Smerdon
- Institute of Biomedical and Clinical Sciences, College of Medicine & Healthcare, University of Exeter, Exeter, UK; DDRC Healthcare, Hyperbaric Medical Centre, Plymouth, UK
| | - Jia Newcombe
- Institute of Biomedical and Clinical Sciences, College of Medicine & Healthcare, University of Exeter, Exeter, UK; NeuroResource, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Janet E Holley
- Institute of Biomedical and Clinical Sciences, College of Medicine & Healthcare, University of Exeter, Exeter, UK
| | - Nicholas J Gutowski
- Institute of Biomedical and Clinical Sciences, College of Medicine & Healthcare, University of Exeter, Exeter, UK; Royal Devon and Exeter Hospital Foundation Trust, Exeter, UK
| | - Miranda Smallwood
- Institute of Biomedical and Clinical Sciences, College of Medicine & Healthcare, University of Exeter, Exeter, UK; Royal Devon and Exeter Hospital Foundation Trust, Exeter, UK
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Harch PG, Andrews SR, Rowe CJ, Lischka JR, Townsend MH, Yu Q, Mercante DE. Hyperbaric oxygen therapy for mild traumatic brain injury persistent postconcussion syndrome: a randomized controlled trial. Med Gas Res 2020; 10:8-20. [PMID: 32189664 PMCID: PMC7871939 DOI: 10.4103/2045-9912.279978] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 11/19/2019] [Accepted: 12/16/2019] [Indexed: 12/18/2022] Open
Abstract
Persistent postconcussion syndrome (PPCS) after mild traumatic brain injury (mTBI) is a significant public health and military problem for which there is limited treatment evidence. The aim of this study was to determine whether forty 150 kPa hyperbaric oxygen therapies (HBOTs) can improve symptoms and cognitive function in subjects with the PPCS of mTBI, using a randomized controlled crossover design with 2-month follow-up. Sixty-three civilian and military subjects with mTBI/PPCS were randomized to either 40 HBOTs at 150 kPa/60 minutes, once daily, 5 days per week in 8 weeks or an equivalent no-treatment control period. The Control Group was then crossed over to HBOT. Subjects underwent symptom, neuropsychological, and psychological testing, before and after treatment or control with retesting 2 months after the 40th HBOT. Fifty subjects completed the protocol with primary outcome testing. HBOT subjects experienced significant improvements in Neurobehavioral Symptom Inventory, Memory Index, Automated Neuropsychological Assessment Metrics, Hamilton Depression Scale, Hamilton Anxiety Scale, Post-Traumatic Stress Disorder Checklist, Pittsburgh Sleep Quality Index, and Quality Of Life after Brain Injury compared to the Control Group. After crossing over to HBOT the Control Group experienced near-identical significant improvements. Further improvements were experienced by both groups during the 2-month follow-up period. These data indicate that 40 HBOTs at 150 kPa/60 minutes demonstrated statistically significant improvements in postconcussion and Post-Traumatic Stress Disorder symptoms, memory, cognitive functions, depression, anxiety, sleep, and quality of life in civilian and military subjects with mTBI/PPCS compared to controls. Improvements persisted at least 2 months after the 40th HBOT. The study was registered on ClinicalTrials.gov (NCT02089594) on March 18, 2014 and with the U.S. Food and Drug Administration under Investigational New Drug #113823. The Institutional Review Boards of the United States Army Medical Research and Materiel Command Office of Research Protections Human Research Protection Office and the Louisiana State University School of Medicine (approval No. 7381) approved the study on May 13, 2014 and December 20, 2013, respectively.
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Affiliation(s)
- Paul G. Harch
- Department of Medicine, Section of Emergency and Hyperbaric Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Susan R. Andrews
- Department of Medicine and Psychiatry, School of Medicine, Louisiana State University Health Sciences Center, Metairie, LA, USA
| | - Cara J. Rowe
- CaTS Clinical Translational Unit, Tulane University School of Medicine, LA, New Orleans, LA, USA
| | | | - Mark H. Townsend
- Louisiana State University-Ochsner Psychiatry Residency Training Program, Department of Psychiatry, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Qingzhao Yu
- School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Donald E. Mercante
- School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA, USA
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Abstract
PURPOSE OF REVIEW Here, we summarize the current scientific literature on the management of sports-related concussion (SRC) in the acute period (< 6 weeks post-injury) with a focus on rest, return to learn, return to play, and emerging treatments. RECENT FINDINGS While relative rest is recommended for the first 24-48 h following acute SRC, the most recent guidelines highlight the lack of evidence for complete rest and in fact show that prolonged cognitive and physical rest can be detrimental. Gradual return to learn and play is recommended. Return to sport should only occur once the patient is symptom free. While there are no FDA-approved medications for acute treatment of concussion, there is preclinical data for the benefit of omega 3 fatty acids. Evidence is limited around the benefits of treating sleep disorders, vestibular-ocular dysfunction, and neck pain in the acute period. After 24-48 h of rest, SRC patients may gradually resume cognitive and physical activity. More research is needed to determine if any supplements, medications, and/or physical therapy are indicated in the management in acute SRC.
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Sharma A, Muresanu DF, Ozkizilcik A, Tian ZR, Lafuente JV, Manzhulo I, Mössler H, Sharma HS. Sleep deprivation exacerbates concussive head injury induced brain pathology: Neuroprotective effects of nanowired delivery of cerebrolysin with α-melanocyte-stimulating hormone. PROGRESS IN BRAIN RESEARCH 2019; 245:1-55. [DOI: 10.1016/bs.pbr.2019.03.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Weaver LK, Wilson SH, Lindblad AS, Churchill S, Deru K, Price R, Williams CS, Orrison WW, Patel JB, Walker JM, Meehan A, Mirow S. Comprehensive Evaluation of Healthy Volunteers Using Multi-Modality Brain Injury Assessments: An Exploratory, Observational Study. Front Neurol 2018; 9:1030. [PMID: 30631299 PMCID: PMC6315163 DOI: 10.3389/fneur.2018.01030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 11/15/2018] [Indexed: 12/25/2022] Open
Abstract
Introduction: Even though mild traumatic brain injury is common and can result in persistent symptoms, traditional measurement tools can be insensitive in detecting functional deficits after injury. Some newer assessments do not have well-established norms, and little is known about how these measures perform over time or how cross-domain assessments correlate with one another. We conducted an exploratory study to measure the distribution, stability, and correlation of results from assessments used in mild traumatic brain injury in healthy, community-dwelling adults. Materials and Methods: In this prospective cohort study, healthy adult men and women without a history of brain injury underwent a comprehensive brain injury evaluation that included self-report questionnaires and neurological, electroencephalography, sleep, audiology/vestibular, autonomic, visual, neuroimaging, and laboratory testing. Most testing was performed at 3 intervals over 6 months. Results: The study enrolled 83 participants, and 75 were included in the primary analysis. Mean age was 38 years, 58 were male, and 53 were civilians. Participants did not endorse symptoms of post-concussive syndrome, PTSD, or depression. Abnormal neurological examination findings were rare, and 6 had generalized slowing on electroencephalography. Actigraphy and sleep diary showed good sleep maintenance efficiency, but 21 reported poor sleep quality. Heart rate variability was most stable over time in the sleep segment. Dynavision performance was normal, but 41 participants had abnormal ocular torsion. On eye tracking, circular, horizontal ramp, and reading tasks were more likely to be abnormal than other tasks. Most participants had normal hearing, videonystagmography, and rotational chair testing, but computerized dynamic posturography was abnormal in up to 21% of participants. Twenty-two participants had greater than expected white matter changes for age by MRI. Most abnormal findings were dispersed across the population, though a few participants had clusters of abnormalities. Conclusions: Despite our efforts to enroll normal, healthy volunteers, abnormalities on some measures were surprisingly common. Trial Registration: This study was registered at www.clinicaltrials.gov, trial identifier NCT01925963.
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Affiliation(s)
- Lindell K. Weaver
- Division of Hyperbaric Medicine Intermountain Medical Center, Murray, UT, United States
- Intermountain LDS Hospital, Salt Lake City, UT, United States
- Department of Internal Medicine, School of Medicine, University of Utah, Salt Lake City, UT, United States
| | | | | | - Susan Churchill
- Division of Hyperbaric Medicine Intermountain Medical Center, Murray, UT, United States
- Intermountain LDS Hospital, Salt Lake City, UT, United States
| | - Kayla Deru
- Division of Hyperbaric Medicine Intermountain Medical Center, Murray, UT, United States
- Intermountain LDS Hospital, Salt Lake City, UT, United States
| | - Robert Price
- Evans Army Community Hospital, Fort Carson, CO, United States
| | | | | | - Jigar B. Patel
- Lovelace Biomedical Research, Albuquerque, NM, United States
| | - James M. Walker
- Lovelace Biomedical Research, Albuquerque, NM, United States
| | - Anna Meehan
- Lovelace Biomedical Research, Albuquerque, NM, United States
| | - Susan Mirow
- Department of Internal Medicine, School of Medicine, University of Utah, Salt Lake City, UT, United States
- Lovelace Biomedical Research, Albuquerque, NM, United States
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