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For: Lange RT, Yeh PH, Brickell TA, Lippa SM, French LM. Postconcussion symptom reporting is not associated with diffusion tensor imaging findings in the subacute to chronic phase of recovery in military service members following mild traumatic brain injury. J Clin Exp Neuropsychol 2019;41:497-511. [PMID: 30871410 DOI: 10.1080/13803395.2019.1585518] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]

For:	Lange RT, Yeh PH, Brickell TA, Lippa SM, French LM. Postconcussion symptom reporting is not associated with diffusion tensor imaging findings in the subacute to chronic phase of recovery in military service members following mild traumatic brain injury. J Clin Exp Neuropsychol 2019;41:497-511. [PMID: 30871410 DOI: 10.1080/13803395.2019.1585518] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]

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Cited by Other Article(s)

Poliva O, Herrera C, Sugai K, Whittle N, Leek MR, Barnes S, Holshouser B, Yi A, Venezia JH. Additive effects of mild head trauma, blast exposure, and aging within white matter tracts: A novel Diffusion Tensor Imaging analysis approach. J Neuropathol Exp Neurol 2024;83:853-869. [PMID: 39053000 DOI: 10.1093/jnen/nlae069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024] Open

Lippa SM, Gillow KC, Hungerford LD, Bailie JM, French LM, Brickell TA, Lange RT. Research Letter: Retrograde Amnesia and Posttraumatic Amnesia in Service Members and Veterans With Remote History of TBI. J Head Trauma Rehabil 2024:00001199-990000000-00189. [PMID: 39133112 DOI: 10.1097/htr.0000000000000996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]

Lippa SM, Yeh PH, Kennedy JE, Bailie JM, Ollinger J, Brickell TA, French LM, Lange RT. Lifetime Blast Exposure Is Not Related to White Matter Integrity in Service Members and Veterans With and Without Uncomplicated Mild Traumatic Brain Injury. Neurotrauma Rep 2023;4:827-837. [PMID: 38156076 PMCID: PMC10754347 DOI: 10.1089/neur.2023.0043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2023] Open

Abstract

This study examines the impact of lifetime blast exposure on white matter integrity in service members and veterans (SMVs). Participants were 227 SMVs, including those with a history of mild traumatic brain injury (mTBI; n = 124), orthopedic injury controls (n = 58), and non-injured controls (n = 45), prospectively enrolled in a Defense and Veterans Brain Injury Center (DVBIC)/Traumatic Brain Injury Center of Excellence (TBICoE) study. Participants were divided into three groups based on number of self-reported lifetime blast exposures: none (n = 53); low (i.e., 1-9 blasts; n = 81); and high (i.e., ≥10 blasts; n = 93). All participants underwent diffusion tensor imaging (DTI) at least 11 months post-injury. Tract-of-interest (TOI) analysis was applied to investigate fractional anisotropy and mean, radial, and axial diffusivity (AD) in left and right total cerebral white matter as well as 24 tracts. Benjamini-Hochberg false discovery rate (FDR) correction was used. Regressions investigating blast exposure and mTBI on white matter integrity, controlling for age, revealed that the presence of mTBI history was associated with lower AD in the bilateral superior longitudinal fasciculus and arcuate fasciculus and left cingulum (βs = -0.255 to -0.174; ps < 0.01); however, when non-injured controls were removed from the sample (but orthopedic injury controls remained), these relationships were attenuated and did not survive FDR correction. Regression models were rerun with modified post-traumatic stress disorder (PTSD) diagnosis added as a predictor. After FDR correction, PTSD was not significantly associated with white matter integrity in any of the models. Overall, there was no relationship between white matter integrity and self-reported lifetime blast exposure or PTSD.

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Affiliation(s)

Sara M. Lippa Walter Reed National Military Medical Center, Bethesda, Maryland, USA National Intrepid Center of Excellence, Bethesda, Maryland, USA Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
Ping-Hong Yeh Walter Reed National Military Medical Center, Bethesda, Maryland, USA National Intrepid Center of Excellence, Bethesda, Maryland, USA
Jan E. Kennedy Traumatic Brain Injury Center of Excellence, Silver Spring, Maryland, USA Contractor, General Dynamics Information Technology, Silver Spring, Maryland, USA Brooke Army Medical Center, Joint Base, San Antonio, Texas, USA
Jason M. Bailie Traumatic Brain Injury Center of Excellence, Silver Spring, Maryland, USA Contractor, General Dynamics Information Technology, Silver Spring, Maryland, USA 33 Area Branch Clinic, Camp Pendleton, California, USA
John Ollinger Walter Reed National Military Medical Center, Bethesda, Maryland, USA National Intrepid Center of Excellence, Bethesda, Maryland, USA
Tracey A. Brickell Walter Reed National Military Medical Center, Bethesda, Maryland, USA National Intrepid Center of Excellence, Bethesda, Maryland, USA Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA Traumatic Brain Injury Center of Excellence, Silver Spring, Maryland, USA Contractor, General Dynamics Information Technology, Silver Spring, Maryland, USA
Louis M. French Walter Reed National Military Medical Center, Bethesda, Maryland, USA National Intrepid Center of Excellence, Bethesda, Maryland, USA Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
Rael T. Lange Walter Reed National Military Medical Center, Bethesda, Maryland, USA National Intrepid Center of Excellence, Bethesda, Maryland, USA Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA Traumatic Brain Injury Center of Excellence, Silver Spring, Maryland, USA Contractor, General Dynamics Information Technology, Silver Spring, Maryland, USA University of British Columbia, Vancouver, British Columbia, USA

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Kelly NA, Kelly RE, Berkeley RP. The Glasgow Coma Scale: A disconnect between medical documentation and traumatic brain injury litigation in the United States. Med Leg J 2023;91:175-179. [PMID: 37063079 DOI: 10.1177/00258172231161975] [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] [Indexed: 04/18/2023]

Pankatz L, Rojczyk P, Seitz-Holland J, Bouix S, Jung LB, Wiegand TLT, Bonke EM, Sollmann N, Kaufmann E, Carrington H, Puri T, Rathi Y, Coleman MJ, Pasternak O, George MS, McAllister TW, Zafonte R, Stein MB, Marx CE, Shenton ME, Koerte IK. Adverse Outcome Following Mild Traumatic Brain Injury Is Associated with Microstructure Alterations at the Gray and White Matter Boundary. J Clin Med 2023;12:5415. [PMID: 37629457 PMCID: PMC10455493 DOI: 10.3390/jcm12165415] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/31/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open

Affiliation(s)

Lara Pankatz Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, 80336 Munich, Germany
Philine Rojczyk Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, 80336 Munich, Germany
Johanna Seitz-Holland Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
Sylvain Bouix Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) Département de génie logiciel et TI, École de Technologie Supérieure, Université du Québec, Montreal, QC H3C 1K3, Canada
Leonard B. Jung Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, 80336 Munich, Germany
Tim L. T. Wiegand Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, 80336 Munich, Germany
Elena M. Bonke Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, 80336 Munich, Germany Graduate School of Systemic Neuroscience, Ludwig-Maximilians-Universität, 82152 Planegg, Germany
Nico Sollmann Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, 80336 Munich, Germany Department of Diagnostic and Interventional Radiology, University Hospital Ulm, 89081 Ulm, Germany Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, Germany TUM-Neuroimaging Center, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, Germany
Elisabeth Kaufmann Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, 80336 Munich, Germany Department of Neurology, University Hospital, LMU, 81377 Munich, Germany
Holly Carrington Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) Brain Injury Research Center of Mount Sinai, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
Twishi Puri Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.)
Yogesh Rathi Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.)
Michael J. Coleman Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.)
Ofer Pasternak Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
Mark S. George Psychiatry Department, Medical University of South Carolina, Charleston, SC 29425, USA; Ralph H. Johnson VA Medical Center, Charleston, SC 29401, USA
Thomas W. McAllister Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
Ross Zafonte Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Harvard Medical School, Charlestown, MA 02129, USA; Department of Physical Medicine and Rehabilitation, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
Murray B. Stein Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA; School of Public Health, University of California San Diego, La Jolla, CA 92093, USA Psychiatry Service, VA San Diego Healthcare System, San Diego, CA 92161, USA
Christine E. Marx VA Mid-Atlantic Mental Illness Research and Clinical Center (MIRECC) and Durham VA Medical Center, Durham, NC 27705, USA; Department of Psychiatry and Behavior Sciences, Duke University School of Medicine, Durham, NC 27710, USA
Martha E. Shenton Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
Inga K. Koerte Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Somerville, MA 02145, USA; (L.P.); (P.R.); (J.S.-H.); (S.B.); (L.B.J.); (T.L.T.W.); (E.M.B.); (N.S.); (E.K.); (H.C.); (T.P.); (Y.R.); (M.J.C.); (O.P.); (M.E.S.) cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, 80336 Munich, Germany Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA Graduate School of Systemic Neuroscience, Ludwig-Maximilians-Universität, 82152 Planegg, Germany

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Martinikova M, Ruzinak R, Hnilicova P, Bittsansky M, Grendar M, Babalova L, Skacik P, Kantorova E, Nosal V, Turcanova Koprusakova M, Sivak J, Sivakova J, Biringerova Z, Kolarovszki B, Zelenak K, Kurca E, Sivak S. Safety and efficacy of simple training protocol in patients after mild traumatic brain injury. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2023. [PMID: 37157859 DOI: 10.5507/bp.2023.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open

Affiliation(s)

Martina Martinikova Second Department of Neurology, F. D. Roosevelt Faculty Hospital, Slovak Medical University, Banska Bystrica, Slovak Republic
Robert Ruzinak Clinic of Neurology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Petra Hnilicova Biomedical Centre Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Michal Bittsansky Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Marian Grendar Biomedical Centre Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Lucia Babalova Clinic of Neurology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Pavol Skacik Clinic of Neurology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Ema Kantorova Clinic of Neurology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Vladimir Nosal Clinic of Neurology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Monika Turcanova Koprusakova Clinic of Neurology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Jozef Sivak Department of Radiology, The Central Slovak Institute for Cardiovascular Diseases in Banska Bystrica, Banska Bystrica, Slovak Republic Department of Radiology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
Jana Sivakova Clinic of Gynecology and Obstetrics, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Zuzana Biringerova Medical Education Support Center, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Branislav Kolarovszki Clinic of Neurosurgery, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Kamil Zelenak Clinic of Radiology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Egon Kurca Clinic of Neurology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
Stefan Sivak Clinic of Neurology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic

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Yeh PH, Lippa SM, Brickell TA, Ollinger J, French LM, Lange RT. Longitudinal changes of white matter microstructure following traumatic brain injury in U.S. military service members. Brain Commun 2022;4:fcac132. [PMID: 35702733 PMCID: PMC9185378 DOI: 10.1093/braincomms/fcac132] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 04/01/2022] [Accepted: 05/24/2022] [Indexed: 09/02/2023] Open

Abstract

The purpose of this study was to analyze quantitative diffusion tensor imaging measures across the spectrum of traumatic brain injury severity and evaluate their trajectories in military service members. Participants were 96 U.S. military service members and veterans who had sustained a mild traumatic brain injury [including complicated mild traumatic brain injury (n = 16) and uncomplicated mild traumatic brain injury (n = 68)], moderate-severe traumatic brain injury (n = 12), and controls (with or without orthopaedic injury, n = 39). All participants had been scanned at least twice, with some receiving up to five scans. Both whole brain voxel-wise analysis and tract-of-interest analysis were applied to assess the group differences of diffusion tensor imaging metrics, and their trajectories between time points of scans and days since injury. Linear mixed modelling was applied to evaluate cross-sectional and longitudinal diffusion tensor imaging metrics changes within and between groups using both tract-of-interest and voxel-wise analyses. Participants with moderate to severe traumatic brain injury had larger white matter disruption both in superficial subcortical and deep white matter, mainly over the anterior part of cerebrum, than those with mild traumatic brain injury, both complicated and uncomplicated, and there was no evidence of recovery over the period of follow-ups in moderate-severe traumatic brain injury, but deterioration was possible. Participants with mild traumatic brain injury had white matter microstructural changes, mainly in deep central white matter over the posterior part of cerebrum, with more spatial involvement in complicated mild traumatic brain injury than in uncomplicated mild traumatic brain injury and possible brain repair through neuroplasticity, e.g. astrocytosis with glial processes and glial scaring. Our results did not replicate 'V-shaped' trajectories in diffusion tensor imaging metrics, which were revealed in a previous study assessing the sub-acute stage of brain injury in service members and veterans following military combat concussion. In addition, non-traumatic brain injury controls, though not demonstrating any evidence of sustaining a traumatic brain injury, might have transient white matter changes with recovery afterward. Our results suggest that white matter integrity following a remote traumatic brain injury may change as a result of different underlying mechanisms at the microstructural level, which can have a significant consequence on the long-term well beings of service members and veterans. In conclusion, longitudinal diffusion tensor imaging improves our understanding of the mechanisms of white matter microstructural changes across the spectrum of traumatic brain injury severity. The quantitative metrics can be useful as guidelines in monitoring the long-term recovery.

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Gumus M, Santos A, Tartaglia MC. Diffusion and functional MRI findings and their relationship to behaviour in postconcussion syndrome: a scoping review. J Neurol Neurosurg Psychiatry 2021;92:1259-1270. [PMID: 34635568 DOI: 10.1136/jnnp-2021-326604] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 09/22/2021] [Indexed: 11/04/2022]

Abstract

Postconcussion syndrome (PCS) is a term attributed to the constellation of symptoms that fail to recover after a concussion. PCS is associated with a variety of symptoms such as headaches, concentration deficits, fatigue, depression and anxiety that have an enormous impact on patients' lives. There is currently no diagnostic biomarker for PCS. There have been attempts at identifying structural and functional brain changes in patients with PCS, using diffusion tensor imaging (DTI) and functional MRI (fMRI), respectively, and relate them to specific PCS symptoms. In this scoping review, we appraised, synthesised and summarised all empirical studies that (1) investigated structural or functional brain changes in PCS using DTI or fMRI, respectively, and (2) assessed behavioural alterations in patients with PCS. We performed a literature search in MEDLINE (Ovid), Embase (Ovid) and PsycINFO (Ovid) for primary research articles published up to February 2020. We identified 8306 articles and included 45 articles that investigated the relationship between DTI and fMRI parameters and behavioural changes in patients with PCS: 20 diffusion, 20 fMRI studies and 5 papers with both modalities. Most frequently studied structures were the corpus callosum, superior longitudinal fasciculus in diffusion and the dorsolateral prefrontal cortex and default mode network in the fMRI literature. Although some white matter and fMRI changes were correlated with cognitive or neuropsychiatric symptoms, there were no consistent, converging findings on the relationship between neuroimaging abnormalities and behavioural changes which could be largely due to the complex and heterogeneous presentation of PCS. Furthermore, the heterogeneity of symptoms in PCS may preclude discovery of one biomarker for all patients. Further research should take advantage of multimodal neuroimaging to better understand the brain-behaviour relationship, with a focus on individual differences rather than on group comparisons.

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LeGoff DB, Wright R, Lazarovic J, Kofeldt M, Peters A. Improving Outcomes for Work-Related Concussions: A Mental Health Screening and Brief Therapy Model. J Occup Environ Med 2021;63:e701-e714. [PMID: 34412089 PMCID: PMC8478320 DOI: 10.1097/jom.0000000000002350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]

Li L, Chopp M, Ding G, Davoodi-Bojd E, Zhang L, Li Q, Zhang Y, Xiong Y, Jiang Q. MRI detection of impairment of glymphatic function in rat after mild traumatic brain injury. Brain Res 2020;1747:147062. [PMID: 32818526 PMCID: PMC9419050 DOI: 10.1016/j.brainres.2020.147062] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/02/2020] [Accepted: 08/14/2020] [Indexed: 12/19/2022]

Kerr H, Bakken B, House G. Future Directions in Sports-Related Concussion Management. Clin Sports Med 2020;40:199-211. [PMID: 33187610 DOI: 10.1016/j.csm.2020.08.009] [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] [Indexed: 12/21/2022]

Lange RT, Lippa SM, Bailie JM, Wright M, Driscoll A, Sullivan J, Gartner R, Ramin D, Robinson G, Eshera Y, Gillow K, French LM, Brickell TA. Longitudinal trajectories and risk factors for persistent postconcussion symptom reporting following uncomplicated mild traumatic brain injury in U.S. Military service members. Clin Neuropsychol 2020;34:1134-1155. [DOI: 10.1080/13854046.2020.1746832] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]

Affiliation(s)

Rael T. Lange Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA University of British Columbia, Vancouver, Canada
Sara M. Lippa Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA
Jason M. Bailie Defense and Veterans Brain Injury Center, Naval Hospital Camp Pendleton, CA, USA
Megan Wright Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA
Angela Driscoll Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA
Jamie Sullivan Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA
Rachel Gartner Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA
Daniel Ramin Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA
Gabrielle Robinson Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA
Yasmine Eshera Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA
Kelly Gillow Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA
Louis M. French Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
Tracey A. Brickell Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, MD, USA

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