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Rivolta MC, Waisberg E, Ong J, Masalkhi M, Lee AG. Ocular effects of hyperbaric oxygen therapy. Eye (Lond) 2024; 38:1031-1033. [PMID: 38052865 PMCID: PMC11009234 DOI: 10.1038/s41433-023-02840-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/01/2023] [Accepted: 11/10/2023] [Indexed: 12/07/2023] Open
Affiliation(s)
| | - Ethan Waisberg
- Department of Ophthalmology, University of Cambridge, Cambridge, UK
- Moorfields Eye Hospital, NHS Foundation Trust, London, UK
| | - Joshua Ong
- Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Mouayad Masalkhi
- University College Dublin School of Medicine, Belfield, Dublin, Ireland
| | - Andrew G Lee
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA.
- Department of Ophthalmology, Blanton Eye Institute, Houston Methodist Hospital, Houston, TX, USA.
- The Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, USA.
- Departments of Ophthalmology, Neurology, and Neurosurgery, Weill Cornell Medicine, New York, NY, USA.
- Department of Ophthalmology, University of Texas Medical Branch, Galveston, TX, USA.
- University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Texas A&M College of Medicine, Texas, TX, US.
- Department of Ophthalmology, The University of Iowa Hospitals and Clinics, Iowa City, IA, USA.
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2
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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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A Systematic Review of Treatments of Post-Concussion Symptoms. J Clin Med 2022; 11:jcm11206224. [PMID: 36294545 PMCID: PMC9604759 DOI: 10.3390/jcm11206224] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/01/2022] [Accepted: 10/12/2022] [Indexed: 11/11/2022] Open
Abstract
Approximately 10−20% of patients who have sustained a mild Traumatic Brain Injury (mTBI) show persistent post-concussion symptoms (PCS). This review aims to summarize the level of evidence concerning interventions for PCS. Following the PRISMA guidelines, we conducted a systematic review regarding interventions for PCS post-mTBI until August 2021 using the Medline, Cochrane, and Embase databases. Inclusion criteria were the following: (1) intervention focusing on PCS after mTBI, (2) presence of a control group, and (3) adult patients (≥18 y.o). Quality assessment was determined using the Incog recommendation level, and the risk of bias was assessed using the revised Cochrane risk-of-bias tool. We first selected 104 full-text articles. Finally, 55 studies were retained, including 35 that obtained the highest level of evidence. The risk of bias was high in 22 out of 55 studies. Cognitive training, psycho-education, cognitive behavioral therapy, and graded return to physical activity demonstrated some effectiveness on persistent PCS. However, there is limited evidence of the beneficial effect of Methylphenidate. Oculomotor rehabilitation, light therapy, and headache management using repetitive transcranial magnetic stimulation seem effective regarding somatic complaints and sleep disorders. The preventive effect of early (<3 months) interventions remains up for debate. Despite its limitations, the results of the present review should encourage clinicians to propose a tailored treatment to patients according to the type and severity of PCS and could encourage further research with larger groups.
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5
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Hadanny A, Catalogna M, Yaniv S, Stolar O, Rothstein L, Shabi A, Suzin G, Sasson E, Lang E, Finci S, Polak N, Fishlev G, Harpaz RT, Adler M, Goldman RE, Zemel Y, Bechor Y, Efrati S. Hyperbaric oxygen therapy in children with post-concussion syndrome improves cognitive and behavioral function: a randomized controlled trial. Sci Rep 2022; 12:15233. [PMID: 36151105 PMCID: PMC9508089 DOI: 10.1038/s41598-022-19395-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Persistent post-concussion syndrome (PPCS) is a common and significant morbidity among children following traumatic brain injury (TBI) and the evidence for effective PPCS treatments remains limited. Recent studies have shown the beneficial effects of hyperbaric oxygen therapy (HBOT) in PPCS adult patients. This randomized, sham-control, double blind trial evaluated the effect of hyperbaric oxygen therapy (HBOT) on children (age 8–15) suffering from PPCS from mild-moderate TBI events six months to 10 years prior. Twenty-five children were randomized to receive 60 daily sessions of HBOT (n = 15) or sham (n = 10) treatments. Following HBOT, there was a significant increase in cognitive function including the general cognitive score (d = 0.598, p = 0.01), memory (d = 0.480, p = 0.02), executive function (d = 0.739, p = 0.003), PPCS symptoms including emotional score (p = 0.04, d = – 0.676), behavioral symptoms including hyperactivity (d = 0.244, p = 0.03), global executive composite score (d = 0.528, p = 0.001), planning/organizing score (d = 1.09, p = 0.007). Clinical outcomes correlated with significant improvements in brain MRI microstructural changes in the insula, supramarginal, lingual, inferior frontal and fusiform gyri. The study suggests that HBOT improves both cognitive and behavioral function, PPCS symptoms, and quality of life in pediatric PPCS patients at the chronic stage, even years after injury. Additional data is needed to optimize the protocol and to characterize the children who can benefit the most.
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Affiliation(s)
- Amir Hadanny
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel. .,Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
| | - Merav Catalogna
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Slava Yaniv
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Orit Stolar
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Autism Center, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel.,Pediatric Neurology Department, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Lynn Rothstein
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Adi Shabi
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Gil Suzin
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Efrat Sasson
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Erez Lang
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Shachar Finci
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Nir Polak
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Gregory Fishlev
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Ruth Tock Harpaz
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Moran Adler
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Ron-El Goldman
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Yonatan Zemel
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Yair Bechor
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Shai Efrati
- Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Pediatric Neurology Department, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel.,Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel
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6
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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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Biggs AT, Littlejohn LF, Dainer HM. Alternative Uses of Hyperbaric Oxygen Therapy in Military Medicine: Current Positions and Future Directions. Mil Med 2021; 187:e40-e46. [PMID: 33564849 DOI: 10.1093/milmed/usab022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/11/2021] [Accepted: 01/19/2021] [Indexed: 11/12/2022] Open
Abstract
INTRODUCTION Hyperbaric oxygen therapy (HBOT) is a commonly used treatment for a variety of medical issues, including more than a dozen currently approved uses. However, there are alternative proposed uses that have significant implications among an active duty military or veteran population as treatments for PTSD, mild traumatic brain injury (mTBI), and traumatic brain injury (TBI). These applications have seen a recent groundswell of support from the operator and veteran communities, raising the visibility of using HBOT for alternative applications. The current review will cover the existing evidence regarding alternative uses of HBOT in military medicine and provide several possibilities to explain the potential conflicting evidence from empirical results. MATERIALS AND METHODS There were no inclusion or exclusion criteria for articles addressing currently approved HBOT uses as covered under the military health system. These references were provided for comparison and illustration as needed. For alternative HBOT uses, the review focuses explicitly upon three alternative uses in PTSD, mTBI, and TBI. The review addresses any piece of case study evidence, observational data, quasi-experimental design, or randomized-controlled trial that explored any or a combination of these issues within an active duty population, a veteran population, or a civilian population. RESULTS The existing medical evidence does not support a consensus viewpoint for these alternative uses of HBOT. Based on the literature review, there are four competing positions to explain the lack of consistency among the empirical results. These possibilities are described in no particular order. First, an explanation suggests that the results are because of placebo effects. The combination of participant expectations and subjective symptom reporting creates the potential that reported improvements are because of placebo rather than casual mechanisms. Second, another position suggests that experiments have utilized sham conditions which induced therapeutic benefits. If sham conditions have actually been weakened active treatment conditions, rather than placebo controls, it could explain the lack of observed significant differences in randomized clinical trials. Third, there has been a substantial amount of heterogeneity both in the symptoms treated and the treatments applied. This heterogeneity could explain the inconsistency of the data and the difficulty in reaching a consensus viewpoint. Fourth, the HBOT treatments may actively treat some tangential medical issue the patient is having. The treatment would thus promote an environment of healing without directly treating either PTSD, mTBI, or TBI, and the reduction in orthogonal medical issues facilitates a pathway to recovery by reducing tangential medical problems. CONCLUSIONS The mixed empirical evidence does not support recommending HBOT as a primary treatment for PTSD, mTBI, or TBI. If applied under the supervision of a licensed military medical professional, the consistently safe track record of HBOT should allow it to be considered as an alternative treatment for PTSD, mTBI, or TBI once primary treatment methods have failed to produce a benefit. However, the evidence does warrant further clinical investigation with particular emphasis on randomized clinical trials, better placebo controls, and a need to develop a consistent treatment protocol.
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Affiliation(s)
- Adam T Biggs
- Naval Special Warfare Command, Medical Department, Coronado, CA 92155, USA
| | - Lanny F Littlejohn
- Naval Special Warfare Command, Medical Department, Coronado, CA 92155, USA
| | - Hugh M Dainer
- Naval Special Warfare Group FOUR Medical Department, Virginia Beach, VA 23521, USA
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The effectiveness of hyperbaric oxygen modalities against vascular component of traumatic brain injury. BRAIN HEMORRHAGES 2020. [DOI: 10.1016/j.hest.2020.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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He H, Li X, He Y. Hyperbaric oxygen therapy attenuates neuronal apoptosis induced by traumatic brain injury via Akt/GSK3β/β-catenin pathway. Neuropsychiatr Dis Treat 2019; 15:369-374. [PMID: 30774348 PMCID: PMC6354685 DOI: 10.2147/ndt.s183632] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Given that the therapeutic effect of hyperbaric oxygen (HBO) therapy on traumatic brain injury (TBI) has been debated for a long time, it is necessary to clarify the mechanism underlying the effect of HBO on acute TBI. METHODS This study investigated the effect of HBO therapy on neuronal apoptosis induced by acute TBI using the mouse model of TBI. The number of apoptotic cells and expression of apoptosis-associated factors (including caspase 3, pAkt/Akt, pGSK3β/GSK3β, and β-catenin) in pericontusional cortices of mice exposed to sham, TBI, and TBI + HBO treatment were measured and analyzed using TUNEL assay, quantitative reverse-transcription PCR, and Western blot. RESULTS Results showed that acute TBI increased the number of apoptotic neurons and mRNA expression and activated caspase 3 protein. With regard to proteins, acute TBI also resulted in decreased levels of pAkt/Akt, pGSK3β/GSK3β, and β-catenin, which facilitates neuronal apoptosis. This study shows that HBO therapy reversed these changes of pAkt/Akt, pGSK3β/ GSK3β, and β-catenin induced by acute TBI and attenuated the apoptotic process in the pericontusional cortex. CONCLUSION This study demonstrates the beneficial effect of HBO therapy on neuronal apoptosis caused by acute TBI. Furthermore, the mechanism underlying the therapeutic effect of HBO on acute TBI partly involves the Akt/GSK3β/β-catenin pathway.
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Affiliation(s)
- Hui He
- Department of Emergency, Zhuji People's Hospital of Zhejiang Province, Zhuji, Zhejiang, China,
| | - Xiufang Li
- Department of Pathology, Zhuji People's Hospital of Zhejiang Province, Zhuji, Zhejiang, China
| | - Yuling He
- Department of Emergency, Zhuji People's Hospital of Zhejiang Province, Zhuji, Zhejiang, China,
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Hadanny A, Abbott S, Suzin G, Bechor Y, Efrati S. Effect of hyperbaric oxygen therapy on chronic neurocognitive deficits of post-traumatic brain injury patients: retrospective analysis. BMJ Open 2018; 8:e023387. [PMID: 30269074 PMCID: PMC6169752 DOI: 10.1136/bmjopen-2018-023387] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES The aim of the study is to evaluate the effect of hyperbaric oxygen therapy (HBOT) in participants suffering from chronic neurological deficits due to traumatic brain injury (TBI) of all severities in the largest cohort evaluated so far with objective cognitive function tests and metabolic brain imaging. METHODS A retrospective analysis was conducted of 154 patients suffering from chronic neurocognitive damage due to TBI, who had undergone computerised cognitive evaluations pre-HBOT and post-HBOT treatment. RESULTS The average age was 42.7±14.6 years, and 58.4% were men. All patients had documented TBI 0.3-33 years (mean 4.6±5.8, median 2.75 years) prior to HBOT. HBOT was associated with significant improvement in all of the cognitive domains, with a mean change in global cognitive scores of 4.6±8.5 (p<0.00001). The most prominent improvements were in memory index and attention, with mean changes of 8.1±16.9 (p<0.00001) and 6.8±16.5 (p<0.0001), respectively. The most striking changes observed in brain single photon emission computed tomography images were in the anterior cingulate and the postcentral cortex, in the prefrontal areas and in the temporal areas. CONCLUSIONS In the largest published cohort of patients suffering from chronic deficits post-TBI of all severities, HBOT was associated with significant cognitive improvements. The clinical improvements were well correlated with increased activity in the relevant brain areas.
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Affiliation(s)
- Amir Hadanny
- Neurosurgery Department, Galilee Medical Center, Nahariya, Israel
- Sagol Center for Hyperbaric Medicine and Research, Assaf Harofeh Medical Center, Zerifin, Israel
- Galilee Faculty of Medicine, Bar-Ilan University, Ramat Gan, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Stefanie Abbott
- Sagol Center for Hyperbaric Medicine and Research, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Gil Suzin
- Sagol Center for Hyperbaric Medicine and Research, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Yair Bechor
- Sagol Center for Hyperbaric Medicine and Research, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Shai Efrati
- Sagol Center for Hyperbaric Medicine and Research, Assaf Harofeh Medical Center, Zerifin, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Research and Development Unit, Assaf Harfoeh Medical Center, Zerifin, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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11
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Dong Y, Hu XH, Wu T, Wang T. Effect of hyperbaric oxygenation therapy on post-concussion syndrome. Exp Ther Med 2018; 16:2193-2202. [PMID: 30186458 PMCID: PMC6122203 DOI: 10.3892/etm.2018.6463] [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: 12/25/2016] [Accepted: 07/11/2017] [Indexed: 11/12/2022] Open
Abstract
The present review evaluated the effect of hyperbaric oxygenation (HBO) therapy on post-concussion syndrome (PCS). Searches for publications from the earliest date possible up until the first week of 2016 were conducted using the electronic databases Cochrane, EBSCOhost, Embase, Ovid MEDLINE, PubMed and Web of Science. Additional trials were identified through reference list scanning. Randomized controlled trials assessing the effectiveness of HBO therapy in PCS were selected and tested for eligibility for inclusion in the present review. Two independent reviewers conducted data extraction and the Cochrane Collaboration's recommended method was used to assess the risk of bias in each study included. Review Manager 5.3 software was used for data synthesis and analysis and the standardized mean difference (SMD) or mean difference (MD) was estimated with a fixed or random effects model using a 95% confidence interval (CI). A total of 127 articles were identified, 4 of which were eligible for final analysis. The meta-analysis identified no difference in the Rivermead Post-Concussion Symptoms Questionnaire (MD=1.23; 95% CI, -3.47-5.94; P>0.05; I2=35%) or Post-Traumatic Stress Disorder Checklist (PCL) scores (SMD=0.12; 95% CI, -0.31-0.54; P>0.05; I2=0%) scores between groups receiving different oxygen doses. The differences in PCL scores (SMD=-0.13, 95% CI, -0.80-0.53; P>0.05; I2=63%) and neurobehavioral symptoms (SMD=-1.00, 95% CI, -2.58-0.58; P>0.05; I2=92%) between the HBO and sham groups were not significant. The current study demonstrated that HBO therapy has no significant effect on PCS compared with the sham group. Therefore, it was determined that effective design and execution of a large clinical trial, which includes treatment, control and sham groups is required in the future.
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Affiliation(s)
- Yang Dong
- Department of Rehabilitation Medicine, Hangzhou Hospital of Zhejiang CAPF, Hangzhou, Zhejiang 310016, P.R. China
- Institute of Rehabilitation Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xia Hua Hu
- Department of Rehabilitation Medicine, Hangzhou Hospital of Zhejiang CAPF, Hangzhou, Zhejiang 310016, P.R. China
| | - Tao Wu
- Department of Rehabilitation Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Tong Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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12
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Simpson-Jones ME, Hunt AW. Vision rehabilitation interventions following mild traumatic brain injury: a scoping review. Disabil Rehabil 2018; 41:2206-2222. [DOI: 10.1080/09638288.2018.1460407] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Mary E. Simpson-Jones
- Department of Occupational Science & Occupational Therapy, University of Toronto, Toronto, Canada
| | - Anne W. Hunt
- Department of Occupational Science & Occupational Therapy, University of Toronto, Toronto, Canada
- Clinical Study Investigator Bloorview Research Institute, Toronto, Canada
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13
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Is Hyperbaric Oxygen Therapy Effective for Traumatic Brain Injury? A Rapid Evidence Assessment of the Literature and Recommendations for the Field. J Head Trauma Rehabil 2018; 32:E27-E37. [PMID: 27603765 PMCID: PMC5426690 DOI: 10.1097/htr.0000000000000256] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Supplemental Digital Content is Available in the Text. Objective: This systematic review examines the efficacy of hyperbaric oxygen (HBO2) for traumatic brain injury (TBI) to make evidence-based recommendations for its application and future research. Methods: A comprehensive search was conducted to identify studies through 2014. Methodological quality was assessed and synthesis and interpretation of relevant data was performed. Results: Twelve randomized trials were included. All mild TBI studies demonstrated minimal bias and no statistically significant differences between HBO2 and sham arms. Statistically significant improvement occurred over time within both groups. Moderate-to-severe TBI studies were of mixed quality, with majority of results favoring HBO2 compared with “standard care.” The placebo analysis conducted was limited by lack of details. Conclusions: For mild TBI, results indicate HBO2 is no better than sham treatment. Improvements within both HBO2 and sham groups cannot be ignored. For acute treatment of moderate-to-severe TBI, although methodology appears flawed across some studies, because of the complexity of brain injury, HBO2 may be beneficial as a relatively safe adjunctive therapy if feasible. Further research should be considered to resolve the controversy surrounding this field, but only if methodological flaws are avoided and bias minimized.
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Rowe FJ, Hanna K, Evans JR, Noonan CP, Garcia‐Finana M, Dodridge CS, Howard C, Jarvis KA, MacDiarmid SL, Maan T, North L, Rodgers H. Interventions for eye movement disorders due to acquired brain injury. Cochrane Database Syst Rev 2018; 3:CD011290. [PMID: 29505103 PMCID: PMC6494416 DOI: 10.1002/14651858.cd011290.pub2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Acquired brain injury can cause eye movement disorders which may include: strabismus, gaze deficits and nystagmus, causing visual symptoms of double, blurred or 'juddery' vision and reading difficulties. A wide range of interventions exist that have potential to alleviate or ameliorate these symptoms. There is a need to evaluate the effectiveness of these interventions and the timing of their implementation. OBJECTIVES We aimed to assess the effectiveness of any intervention and determine the effect of timing of intervention in the treatment of strabismus, gaze deficits and nystagmus due to acquired brain injury. We considered restitutive, substitutive, compensatory or pharmacological interventions separately and compared them to control, placebo, alternative treatment or no treatment for improving ocular alignment or motility (or both). SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (containing the Cochrane Eyes and Vision Trials Register) (2017, Issue 5), MEDLINE Ovid, Embase Ovid, CINAHL EBSCO, AMED Ovid, PsycINFO Ovid, Dissertations & Theses (PQDT) database, PsycBITE (Psychological Database for Brain Impairment Treatment Efficacy), ISRCTN registry, ClinicalTrials.gov, Health Services Research Projects in Progress (HSRProj), National Eye Institute Clinical Studies Database and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP). The databases were last searched on 26 June 2017. No date or language restrictions were used in the electronic searches for trials. We manually searched the Australian Orthoptic Journal, British and Irish Orthoptic Journal, and ESA, ISA and IOA conference proceedings. We contacted researchers active in this field for information about further published or unpublished studies. SELECTION CRITERIA We included randomised controlled trials (RCTs) of any intervention for ocular alignment or motility deficits (or both) due to acquired brain injury. DATA COLLECTION AND ANALYSIS Two review authors independently selected studies and extracted data. We used standard methods expected by Cochrane. We employed the GRADE approach to interpret findings and assess the quality of the evidence. MAIN RESULTS We found five RCTs (116 participants) that were eligible for inclusion. These trials included conditions of acquired nystagmus, sixth cranial nerve palsy and traumatic brain injury-induced ocular motility defects. We did not identify any relevant studies of restitutive interventions.We identified one UK-based trial of a substitutive intervention, in which botulinum toxin was compared with observation in 47 people with acute sixth nerve palsy. At four months after entry into the trial, people given botulinum toxin were more likely to make a full recovery (reduction in angle of deviation within 10 prism dioptres), compared with observation (risk ratio 1.19, 95% CI 0.96 to 1.48; low-certainty evidence). These same participants also achieved binocular single vision. In the injection group only, there were 2 cases of transient ptosis out of 22 participants (9%), and 4 participants out of 22 (18%) with transient vertical deviation; a total complication rate of 24% per injection and 27% per participant. All adverse events recovered. We judged the certainty of evidence as low, downgrading for risk of bias and imprecision. It was not possible to mask investigators or participants to allocation, and the follow-up between groups varied.We identified one USA-based cross-over trial of a compensatory intervention. Oculomotor rehabilitation was compared with sham training in 12 people with mild traumatic brain injury, at least one year after the injury. We judged the evidence from this study to be very low-certainty. The study was small, data for the sham training group were not fully reported, and it was unclear if a cross-over study design was appropriate as this is an intervention with potential to have a permanent effect.We identified three cross-over studies of pharmacological interventions for acquired nystagmus, which took place in Germany and the USA. These studies investigated two classes of pharmacological interventions: GABAergic drugs (gabapentin, baclofen) and aminopyridines (4-aminopyridines (AP), 3,4-diaminopyridine (DAP)). We judged the evidence from all three studies as very low-certainty because of small numbers of participants (which led to imprecision) and risk of bias (they were cross-over studies which did not report data in a way that permitted estimation of effect size).One study compared gabapentin (up to 900 mg/day) with baclofen (up to 30 mg/day) in 21 people with pendular and jerk nystagmus. The follow-up period was two weeks. This study provides very low-certainty evidence that gabapentin may work better than baclofen in improving ocular motility and reducing participant-reported symptoms (oscillopsia). These effects may be different in pendular and jerk nystagmus, but without formal subgroup analysis it is unclear if the difference between the two types of nystagmus was chance finding. Quality of life was not reported. Ten participants with pendular nystagmus chose to continue treatment with gabapentin, and one with baclofen. Two participants with jerk nystagmus chose to continue treatment with gabapentin, and one with baclofen. Drug intolerance was reported in one person receiving gabapentin and in four participants receiving baclofen. Increased ataxia was reported in three participants receiving gabapentin and two participants receiving baclofen.One study compared a single dose of 3,4-DAP (20 mg) with placebo in 17 people with downbeat nystagmus. Assessments were made 30 minutes after taking the drug. This study provides very low-certainty evidence that 3,4-DAP may reduce the mean peak slow-phase velocity, with less oscillopsia, in people with downbeat nystagmus. Three participants reported transient side effects of minor perioral/distal paraesthesia.One study compared a single dose of 4-AP with a single dose of 3,4-DAP (both 10 mg doses) in eight people with downbeat nystagmus. Assessments were made 45 and 90 minutes after drug administration. This study provides very low-certainty evidence that both 3,4-DAP and 4-AP may reduce the mean slow-phase velocity in people with downbeat nystagmus. This effect may be stronger with 4-AP. AUTHORS' CONCLUSIONS The included studies provide insufficient evidence to inform decisions about treatments specifically for eye movement disorders that occur following acquired brain injury. No information was obtained on the cost of treatment or measures of participant satisfaction relating to treatment options and effectiveness. It was possible to describe the outcome of treatment in each trial and ascertain the occurrence of adverse events.
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Affiliation(s)
- Fiona J Rowe
- University of LiverpoolDepartment of Health Services ResearchWaterhouse Building (B211)1‐3 Brownlow StreetLiverpoolUKL69 3GL
| | - Kerry Hanna
- University of LiverpoolDepartment of Health Services ResearchWaterhouse Building (B211)1‐3 Brownlow StreetLiverpoolUKL69 3GL
| | - Jennifer R Evans
- London School of Hygiene & Tropical MedicineCochrane Eyes and Vision, ICEHKeppel StreetLondonUKWC1E 7HT
| | - Carmel P Noonan
- Aintree University Hospitals NHS Foundation TrustDepartment of OphthalmologyLower LaneLiverpoolUKL9 7AL
| | - Marta Garcia‐Finana
- University of LiverpoolBiostatisticsBlock F, Waterhouse Bld1‐5 Brownlow StreetLiverpoolUKL69 3GL
| | - Caroline S Dodridge
- Oxford University Hospitals NHS TrustOrthopticsOxford Eye Hospital, John Radcliffe Hospital, Headley WayOxfordUKOX3 9DU
| | - Claire Howard
- Salford Royal NHS Foundation TrustOrthopticsStott LaneSalfordManchesterUKM6 8HD
| | - Kathryn A Jarvis
- University of LiverpoolOccupational TherapyBrownlow HillLiverpoolUKL69 3GB
| | - Sonia L MacDiarmid
- Warrington and Halton Hospitals NHS Foundation TrustDepartment of OrthopticsLovely LaneWarringtonUKWA5 2QQ
| | - Tallat Maan
- Pennine Care NHS Foundation TrustCommunity Eye Service225 Old StreetAshton‐under‐LyneUKOL6 7SR
| | - Lorraine North
- Frimley Park NHS Foundation TrustOrthopticsPortsmouth RoadFrimleySurreyUKGU16 7UJ
| | - Helen Rodgers
- Newcastle UniversityInstitute of NeuroscienceNewcastleUKNE2 4HH
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15
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Hawkins JR, Heumann KJ. Clinical Use of a Hyperbaric Chamber as a Modality to Aid in Recovery. Strength Cond J 2017. [DOI: 10.1519/ssc.0000000000000235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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A review of the current practice in diagnosis and management of visual complaints associated with concussion and postconcussion syndrome. Curr Opin Ophthalmol 2016; 27:407-12. [PMID: 27213924 DOI: 10.1097/icu.0000000000000296] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Hadanny A, Efrati S. Treatment of persistent post-concussion syndrome due to mild traumatic brain injury: current status and future directions. Expert Rev Neurother 2016; 16:875-87. [PMID: 27337294 DOI: 10.1080/14737175.2016.1205487] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Persistent post-concussion syndrome caused by mild traumatic brain injury has become a major cause of morbidity and poor quality of life. Unlike the acute care of concussion, there is no consensus for treatment of chronic symptoms. Moreover, most of the pharmacologic and non-pharmacologic treatments have failed to demonstrate significant efficacy on both the clinical symptoms as well as the pathophysiologic cascade responsible for the permanent brain injury. This article reviews the pathophysiology of PCS, the diagnostic tools and criteria, the current available treatments including pharmacotherapy and different cognitive rehabilitation programs, and promising new treatment directions. A most promising new direction is the use of hyperbaric oxygen therapy, which targets the basic pathological processes responsible for post-concussion symptoms; it is discussed here in depth.
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Affiliation(s)
- Amir Hadanny
- a The Sagol Center for Hyperbaric Medicine and Research , Assaf Harofeh Medical Center , Zerifin , Israel.,b Sackler School of Medicine , Tel-Aviv University , Tel-Aviv , Israel
| | - Shai Efrati
- a The Sagol Center for Hyperbaric Medicine and Research , Assaf Harofeh Medical Center , Zerifin , Israel.,b Sackler School of Medicine , Tel-Aviv University , Tel-Aviv , Israel.,c Research and Development Unit , Assaf Harofeh Medical Center , Zerifin , Israel.,d Sagol School of Neuroscience , Tel-Aviv University , Tel-Aviv , Israel
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18
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Guedes VA, Song S, Provenzano M, Borlongan CV. Understanding the pathology and treatment of traumatic brain injury and posttraumatic stress disorder: a therapeutic role for hyperbaric oxygen therapy. Expert Rev Neurother 2016; 16:61-70. [PMID: 26613116 DOI: 10.1586/14737175.2016.1126180] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Traumatic brain injury (TBI) is an intracranial injury caused by external trauma leading to different degrees of brain damage. TBI can cause a wide array of symptoms and range in severity from concussion to coma and death. The link between TBI and posttraumatic stress disorder (PTSD) has received increasing attention due to the high incidence of these conditions in soldiers returning from recent conflicts. TBI has been associated with an increased risk of PTSD. Additionally, TBI and PTSD often demonstrate overlapping symptoms. In this article, we discuss the different forms of TBI and their links to PTSD. We also discuss current therapies for TBI and PTSD, in particular detailing the therapeutic potential of hyperbaric oxygen therapy in the management of these conditions.
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Affiliation(s)
- Vivian A Guedes
- a Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair , University of South Florida College of Medicine , Tampa , FL , USA
| | - Shuojing Song
- a Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair , University of South Florida College of Medicine , Tampa , FL , USA
| | - Martina Provenzano
- b Laboratory of Molecular Genetics, DISPUTer, School of Medicine and Health Sciences , "G. d'Annunzio" University, Chieti-Pescara , Chieti , Italy
| | - Cesario V Borlongan
- a Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair , University of South Florida College of Medicine , Tampa , FL , USA
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19
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Szczupak M, Hoffer ME, Murphy S, Balaban CD. Posttraumatic dizziness and vertigo. HANDBOOK OF CLINICAL NEUROLOGY 2016; 137:295-300. [PMID: 27638079 DOI: 10.1016/b978-0-444-63437-5.00021-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Traumatic brain injury is an increasingly common public health issue, with the mild variant most clinically relevant for this chapter. Common causes of mild traumatic brain injury (mTBI) include motor vehicle accidents, athletics, and military training/deployment. Despite a range of clinically available testing platforms, diagnosis of mTBI remains challenging. Symptoms are primarily neurosensory, and include dizziness, hearing problems, headaches, cognitive, and sleep disturbances. Dizziness is nearly universally present in all mTBI patients, and is the easiest symptom to objectify for diagnosis. Aside from a thorough history and physical exam, in the near future specialized vestibular function tests will be key to mTBI diagnosis. A battery of oculomotor (antisaccade, predictive saccade) and vestibular tasks (head impulse test) has been demonstrated to sensitively and specifically identify individuals with acute mTBI. Vestibular therapy and rehabilitation have shown improvements for mTBI patients in cognitive function, ability to return to activities of daily living, and ability to return to work. Dizziness, as a contributor to short- and long-term disability following mTBI, is ultimately crucial not only for diagnosis but also for treatment.
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Affiliation(s)
- M Szczupak
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA; University of Medicine Sports Medicine and Performance Institute, Miami, FL, USA
| | - M E Hoffer
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA; University of Medicine Sports Medicine and Performance Institute, Miami, FL, USA; Department of Neurological Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - S Murphy
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - C D Balaban
- Departments of Otolaryngology, Neurobiology, Communication Sciences and Disorders, and Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
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20
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Samadani U. Will eye tracking change the way we diagnose and classify concussion and structural brain injury? Concussion 2015; 1:CNC2. [PMID: 30202547 PMCID: PMC6114020 DOI: 10.2217/cnc.15.2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 04/01/2015] [Indexed: 11/21/2022] Open
Affiliation(s)
- Uzma Samadani
- New York Harbor HealthCare System, NY, USA.,Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury.,Department of Neurosurgery, Psychiatry, Physiology & Neuroscience, New York University School of Medicine, 423 E, 23rd St, MC 112, Rm 4168N, New York, NY 10010, USA.,New York Harbor HealthCare System, NY, USA.,Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury.,Department of Neurosurgery, Psychiatry, Physiology & Neuroscience, New York University School of Medicine, 423 E, 23rd St, MC 112, Rm 4168N, New York, NY 10010, USA
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21
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Samadani U, Li M, Qian M, Laska E, Ritlop R, Kolecki R, Reyes M, Altomare L, Sone JY, Adem A, Huang P, Kondziolka D, Wall S, Frangos S, Marmar C. Sensitivity and specificity of an eye movement tracking-based biomarker for concussion. Concussion 2015; 1:CNC3. [PMID: 30202548 PMCID: PMC6114025 DOI: 10.2217/cnc.15.3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 06/05/2015] [Indexed: 12/05/2022] Open
Abstract
Object: The purpose of the current study is to determine the sensitivity and specificity of an eye tracking method as a classifier for identifying concussion. Methods: Brain injured and control subjects prospectively underwent both eye tracking and Sport Concussion Assessment Tool 3. The results of eye tracking biomarker based classifier models were then validated against a dataset of individuals not used in building a model. The area under the curve (AUC) of receiver operating characteristics was examined. Results: An optimal classifier based on best subset had an AUC of 0.878, and a cross-validated AUC of 0.852 in CT- subjects and an AUC of 0.831 in a validation dataset. The optimal misclassification rate in an external dataset (n = 254) was 13%. Conclusion: If one defines concussion based on history, examination, radiographic and Sport Concussion Assessment Tool 3 criteria, it is possible to generate an eye tracking based biomarker that enables detection of concussion with reasonably high sensitivity and specificity.
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Affiliation(s)
- Uzma Samadani
- Department of Neurosurgery, New York Harbor Health Care System, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA.,Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA.,Department of Neurosurgery, New York Harbor Health Care System, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA.,Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA
| | - Meng Li
- Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA.,Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA
| | - Meng Qian
- Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA.,Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA
| | - Eugene Laska
- Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA.,Nathan Kline Institute for Psychiatric Research, Orangeburg, NJ, USA.,Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA.,Nathan Kline Institute for Psychiatric Research, Orangeburg, NJ, USA
| | | | - Radek Kolecki
- Department of Neurosurgery, New York University, School of Medicine, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA
| | - Marleen Reyes
- Department of Neurosurgery, New York Harbor Health Care System, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA.,Department of Neurosurgery, New York Harbor Health Care System, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA
| | - Lindsey Altomare
- Department of Neurosurgery, New York University, School of Medicine, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA
| | - Je Yeong Sone
- Department of Neurosurgery, New York University, School of Medicine, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA
| | - Aylin Adem
- Department of Neurosurgery, New York University, School of Medicine, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA
| | - Paul Huang
- Department of Neurosurgery, New York University, School of Medicine, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA
| | - Douglas Kondziolka
- Department of Neurosurgery, New York University, School of Medicine, NY, USA.,Department of Neurosurgery, New York University, School of Medicine, NY, USA
| | - Stephen Wall
- Department of Emergency Medicine, New York University School of Medicine, NY, USA.,Department of Emergency Medicine, New York University School of Medicine, NY, USA
| | - Spiros Frangos
- Department of Trauma Surgery, New York University School of Medicine, NY, USA.,Department of Trauma Surgery, New York University School of Medicine, NY, USA
| | - Charles Marmar
- Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA.,Steven & Alexandra Cohen Veterans Center for Post-Traumatic Stress & Traumatic Brain Injury, New York University Langone Medical Center, NY, USA
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