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Asturias A, Knoblauch T, Rodriguez A, Vanier C, Le Tohic C, Barrett B, Eisenberg M, Gibbert R, Zimmerman L, Parikh S, Nguyen A, Azad S, Germin L, Fazzini E, Snyder T. Diffusion in the corpus callosum predicts persistence of clinical symptoms after mild traumatic brain injury, a multi-scanner study. FRONTIERS IN NEUROIMAGING 2023; 2:1153115. [PMID: 38025312 PMCID: PMC10654678 DOI: 10.3389/fnimg.2023.1153115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 08/23/2023] [Indexed: 12/01/2023]
Abstract
Background Mild traumatic brain injuries (mTBIs) comprise 80% of all TBI, but conventional MRI techniques are often insensitive to the subtle changes and injuries produced in a concussion. Diffusion tensor imaging (DTI) is one of the most sensitive MRI techniques for mTBI studies with outcome and symptom associations described. The corpus callosum (CC) is one of the most studied fiber tracts in TBI and mTBI, but the comprehensive post-mTBI symptom relationship has not fully been explored. Methods This is a retrospective observational study of how quantitative DTI data of the CC and its sub-regions may relate to clinical presentation of symptoms and timing of resolution of symptoms in patients diagnosed with uncomplicated mTBI. DTI and clinical data were obtained retrospectively from 446 (mean age 42 years, range 13-82) civilian patients. From patient medical charts, presentation of the following common post-concussive symptoms was noted: headache, balance issues, cognitive deficits, fatigue, anxiety, depression, and emotional lability. Also recorded was the time between injury and a visit to the physician when improvement or resolution of a particular symptom was reported. FA values from the total CC and 3 subregions of the CC (genu or anterior, mid body, and splenium or posterior) were obtained from hand tracing on the Olea Sphere v3.0 SP12 free-standing workstation. DTI data was obtained from 8 different 3T MRI scanners and harmonized via ComBat harmonization. The statistical models used to explore the association between regional Fractional Anisotropy (FA) values and symptom presentation and time to symptom resolution were logistic regression and interval-censored semi-parametric Cox proportional hazard models, respectively. Subgroups related to age and timing of first scan were also analyzed. Results Patients with the highest FA in the total CC (p = 0.01), anterior CC (p < 0.01), and mid-body CC (p = 0.03), but not the posterior CC (p = 0.91) recovered faster from post-concussive cognitive deficits. Patients with the highest FA in the posterior CC recovered faster from depression (p = 0.04) and emotional lability (p = 0.01). There was no evidence that FA in the CC or any of its sub-regions was associated with symptom presentation or with time to resolution of headache, balance issues, fatigue, or anxiety. Patients with mTBI under 40 had higher FA in the CC and the anterior and mid-body subregions (but not the posterior subregion: p = 1.00) compared to patients 40 or over (p ≤ 0.01). There was no evidence for differences in symptom presentation based on loss of consciousness (LOC) or sex (p ≥ 0.18). Conclusion This study suggests that FA of the CC has diagnostic and prognostic value for clinical assessment of mTBI in a large diverse civilian population, particularly in patients with cognitive symptoms.
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Affiliation(s)
- Alexander Asturias
- Imgen Research Group, Las Vegas, NV, United States
- Touro University Nevada, Henderson, NV, United States
| | - Thomas Knoblauch
- Imgen Research Group, Las Vegas, NV, United States
- Touro University Nevada, Henderson, NV, United States
- School of Integrated Health Sciences, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Alan Rodriguez
- Imgen Research Group, Las Vegas, NV, United States
- Touro University Nevada, Henderson, NV, United States
| | - Cheryl Vanier
- Imgen Research Group, Las Vegas, NV, United States
- Touro University Nevada, Henderson, NV, United States
| | - Caroline Le Tohic
- Kirk Kerkorian School of Medicine at UNLV, Las Vegas, NV, United States
| | - Brandon Barrett
- Kirk Kerkorian School of Medicine at UNLV, Las Vegas, NV, United States
| | - Matthew Eisenberg
- Kirk Kerkorian School of Medicine at UNLV, Las Vegas, NV, United States
| | | | - Lennon Zimmerman
- Kirk Kerkorian School of Medicine at UNLV, Las Vegas, NV, United States
| | | | - Anh Nguyen
- Touro University Nevada, Henderson, NV, United States
| | - Sherwin Azad
- MountainView Hospital, HCA Healthcare, Las Vegas, NV, United States
| | - Leo Germin
- Clinical Neurology Specialists, Las Vegas, NV, United States
| | | | - Travis Snyder
- Imgen Research Group, Las Vegas, NV, United States
- Touro University Nevada, Henderson, NV, United States
- MountainView Hospital, HCA Healthcare, Las Vegas, NV, United States
- SimonMed Imaging, Scottsdale, AZ, United States
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2
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Lima Santos JP, Jia-Richards M, Kontos AP, Collins MW, Versace A. Emotional Regulation and Adolescent Concussion: Overview and Role of Neuroimaging. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6274. [PMID: 37444121 PMCID: PMC10341732 DOI: 10.3390/ijerph20136274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/16/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023]
Abstract
Emotional dysregulation symptoms following a concussion are associated with an increased risk for emotional dysregulation disorders (e.g., depression and anxiety), especially in adolescents. However, predicting the emergence or worsening of emotional dysregulation symptoms after concussion and the extent to which this predates the onset of subsequent psychiatric morbidity after injury remains challenging. Although advanced neuroimaging techniques, such as functional magnetic resonance imaging and diffusion magnetic resonance imaging, have been used to detect and monitor concussion-related brain abnormalities in research settings, their clinical utility remains limited. In this narrative review, we have performed a comprehensive search of the available literature regarding emotional regulation, adolescent concussion, and advanced neuroimaging techniques in electronic databases (PubMed, Scopus, and Google Scholar). We highlight clinical evidence showing the heightened susceptibility of adolescents to experiencing emotional dysregulation symptoms following a concussion. Furthermore, we describe and provide empirical support for widely used magnetic resonance imaging modalities (i.e., functional and diffusion imaging), which are utilized to detect abnormalities in circuits responsible for emotional regulation. Additionally, we assess how these abnormalities relate to the emotional dysregulation symptoms often reported by adolescents post-injury. Yet, it remains to be determined if a progression of concussion-related abnormalities exists, especially in brain regions that undergo significant developmental changes during adolescence. We conclude that neuroimaging techniques hold potential as clinically useful tools for predicting and, ultimately, monitoring the treatment response to emotional dysregulation in adolescents following a concussion.
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Affiliation(s)
- João Paulo Lima Santos
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (M.J.-R.); (A.V.)
| | - Meilin Jia-Richards
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (M.J.-R.); (A.V.)
| | - Anthony P. Kontos
- Department of Orthopaedic Surgery, UPMC Sports Concussion Program, University of Pittsburgh, Pittsburgh, PA 15213, USA; (A.P.K.); (M.W.C.)
| | - Michael W. Collins
- Department of Orthopaedic Surgery, UPMC Sports Concussion Program, University of Pittsburgh, Pittsburgh, PA 15213, USA; (A.P.K.); (M.W.C.)
| | - Amelia Versace
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (M.J.-R.); (A.V.)
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3
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Shen J, Koterba C, Samora J, Leonard J, Li R, Shi J, Yeates KO, Xiang H, Taylor G. Usability and validity of a virtual reality cognitive assessment tool for pediatric traumatic brain injury. Rehabil Psychol 2022; 67:587-596. [PMID: 36048061 PMCID: PMC10165731 DOI: 10.1037/rep0000464] [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: 11/08/2022]
Abstract
PURPOSE/OBJECTIVE Deficits in executive functions are prevalent among children with traumatic brain injury (TBI). Assessing cognitive impairment is critical for evaluating and monitoring recovery. The present article reports a pilot study to evaluate the preliminary usability and validity of a virtual reality cognitive assessment tool (VR-CAT) specifically designed for children with TBI. RESEARCH METHOD/DESIGN A total of 54 children, 24 with TBI and 30 with orthopedic injury, participated in a cross-sectional cohort study at a Level-1 trauma center. The VR-CAT was evaluated in terms of user experience as well as preliminary psychometric properties including test-retest reliability, face validity, concurrent validity with two standard executive function assessment tools, and utility in distinguishing the TBI and orthopedic injury groups. RESULTS Children in both groups reported high levels of usability (i.e., enjoyment and motivation). The VR-CAT composite and scores on tests of inhibitory control and working memory demonstrated modest test-retest reliability across two independent assessment visits, as well as acceptable face validity, modest concurrent validity, and clinical utility. CONCLUSIONS/IMPLICATIONS The present study is among the first to evaluate the applicability of an immersive VR-CAT in children with TBI. The findings support high usability, adequate psychometric properties, and satisfactory clinical utility of the VR-CAT, suggesting it is a promising tool for assessing executive functions in this vulnerable population. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Affiliation(s)
- Jiabin Shen
- Department of Psychology, University of Massachusetts Lowell, Lowell, MA, USA
| | - Christine Koterba
- Department of Pediatrics, Ohio State University, Columbus, OH, USA
- Nationwide Children’s Hospital, Columbus, OH, USA
| | - Julie Samora
- Department of Pediatrics, Ohio State University, Columbus, OH, USA
- Nationwide Children’s Hospital, Columbus, OH, USA
| | - Jeffery Leonard
- Department of Pediatrics, Ohio State University, Columbus, OH, USA
- Nationwide Children’s Hospital, Columbus, OH, USA
| | - Rui Li
- Center for Behavioral Health, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, USA
| | - Junxin Shi
- Center for Injury Research and Policy, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, USA
| | | | - Henry Xiang
- Department of Pediatrics, Ohio State University, Columbus, OH, USA
- Center for Injury Research and Policy, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, USA
| | - Gerry Taylor
- Department of Pediatrics, Ohio State University, Columbus, OH, USA
- Center for Behavioral Health, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, USA
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4
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Ankrett S, Smithson J, Limond J, Behn N, Wade SL, Wilkinson L, Adlam ALR. Understanding and supporting peer relationships in adolescents with acquired brain injury: A stakeholder engagement study. Neuropsychol Rehabil 2022:1-30. [PMID: 35443860 DOI: 10.1080/09602011.2022.2062006] [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: 10/18/2022]
Abstract
Peer relationship difficulties in adolescents with acquired brain injury (ABI) are under-recognized and targets for intervention are unclear. From a social constructionist position, this study aimed to engage with stakeholders to develop a collaborative understanding of peer relationship difficulties in adolescents with ABI and seek consultation on what might be required to improve them. Focus groups and semi-structured interviews were conducted with four stakeholder groups: adolescents with ABI (n = 4); parents of adolescents with ABI (n = 7); adults who sustained an ABI in adolescence (n = 2); and specialist practitioners (n = 3). Qualitative data were analysed using thematic analysis. The analysis yielded 11 themes, grouped into two domains. The first, understanding peer relationship difficulties, included themes from "exclusion and a need to belong", to "loss of past self". The second, supporting peer relationships, comprised themes of "building understanding" and "meaningful social connection", amongst others. A logic model of stakeholder experiences of peer relationship difficulties was constructed. Difficulties with peers can increase vulnerability to feelings of loneliness, shame, and hopelessness for adolescents post-ABI. Stakeholders described that a meaningful intervention would be multi-layered, targeting change within the adolescent's environment and within the adolescent themselves. The presented logic model provides a framework for future intervention development.
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Affiliation(s)
- Scott Ankrett
- College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Janet Smithson
- College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Jenny Limond
- College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Nicholas Behn
- Division of Language and Communication Science, City, University of London, London, UK
| | - Shari L Wade
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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5
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Stojanovski S, Scratch SE, Dunkley BT, Schachar R, Wheeler AL. A Systematic Scoping Review of New Attention Problems Following Traumatic Brain Injury in Children. Front Neurol 2021; 12:751736. [PMID: 34858314 PMCID: PMC8631327 DOI: 10.3389/fneur.2021.751736] [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: 08/01/2021] [Accepted: 10/04/2021] [Indexed: 11/18/2022] Open
Abstract
Objective: To summarize existing knowledge about the characteristics of attention problems secondary to traumatic brain injuries (TBI) of all severities in children. Methods: Computerized databases PubMed and PsychINFO and gray literature sources were used to identify relevant studies. Search terms were selected to identify original research examining new ADHD diagnosis or attention problems after TBI in children. Studies were included if they investigated any severity of TBI, assessed attention or ADHD after brain injury, investigated children as a primary or sub-analysis, and controlled for or excluded participants with preinjury ADHD or attention problems. Results: Thirty-nine studies were included in the review. Studies examined the prevalence of and risk factors for new attention problems and ADHD following TBI in children as well as behavioral and neuropsychological factors associated with these attention problems. Studies report a wide range of prevalence rates of new ADHD diagnosis or attention problems after TBI. Evidence indicates that more severe injury, injury in early childhood, or preinjury adaptive functioning problems, increases the risk for new ADHD and attention problems after TBI and both sexes appear to be equally vulnerable. Further, literature suggests that cases of new ADHD often co-occurs with neuropsychiatric impairment in other domains. Identified gaps in our understanding of new attention problems and ADHD include if mild TBI, the most common type of injury, increases risk and what brain abnormalities are associated with the emergence of these problems. Conclusion: This scoping review describes existing studies of new attention problems and ADHD following TBI in children and highlights important risk factors and comorbidities. Important future research directions are identified that will inform the extent of this outcome across TBI severities, its neural basis and points of intervention to minimize its impact.
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Affiliation(s)
- Sonja Stojanovski
- SickKids Research Institute, Program in Neuroscience and Mental Health, Hospital for Sick Children, Neuroscience and Mental Health Program, Toronto, ON, Canada.,Physiology Department, University of Toronto, Toronto, ON, Canada
| | - Shannon E Scratch
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada.,Rehabilitation Sciences Institute, University of Toronto, Toronto, ON, Canada.,Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - Benjamin T Dunkley
- SickKids Research Institute, Program in Neuroscience and Mental Health, Hospital for Sick Children, Neuroscience and Mental Health Program, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada.,Medical Imaging, University of Toronto, Toronto, ON, Canada
| | - Russell Schachar
- SickKids Research Institute, Program in Neuroscience and Mental Health, Hospital for Sick Children, Neuroscience and Mental Health Program, Toronto, ON, Canada.,Psychiatry Department, University of Toronto, Toronto, ON, Canada
| | - Anne L Wheeler
- SickKids Research Institute, Program in Neuroscience and Mental Health, Hospital for Sick Children, Neuroscience and Mental Health Program, Toronto, ON, Canada.,Physiology Department, University of Toronto, Toronto, ON, Canada
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6
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Gise R, Truong T, Poulsen DM, Soliman Y, Parsikia A, Mbekeani JN. Pediatric traumatic brain injury and ocular injury. J AAPOS 2018; 22:421-425.e3. [PMID: 30342183 DOI: 10.1016/j.jaapos.2018.07.351] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/16/2018] [Accepted: 07/19/2018] [Indexed: 11/17/2022]
Abstract
PURPOSE Traumatic brain injury (TBI) is a leading cause of pediatric disability and mortality. Together with sight-threatening ocular injuries, TBIs may lead to devastating consequences in developing children and complicate rehabilitation. We sought to investigate this relationship in pediatric patients admitted with major trauma. METHODS The records of pediatric patients admitted with ocular injury and concomitant TBI were reviewed retrospectively using the National Trauma Data Bank (2008-2014). RESULTS Of 58,765 pediatric patients admitted for trauma and also had ocular injuries, 32,173 were diagnosed with TBI. Mean patient age was 12.3 ± 7 years. Most were male (69.8%) and White (61.2%). The most frequent injuries were contusion of the eye/adnexa (39.1%) and orbital fractures (35.8%). The youngest age groups had greatest odds of falls in home locations, whereas older groups were more likely to suffer motor vehicle trauma as occupants (MVTO), struck by or against (SBA) injuries, and firearms injuries in street locations (P < 0.001). Blacks and Hispanics were most likely to suffer assault (P < 0.001) and Whites, unintentional (P < 0.001) and self-inflicted (P < 0.012) injury. Blacks were at a higher risk of firearms injury, Whites of MVTO, and Hispanics of motor vehicles as pedestrians (P < 0.001). CONCLUSIONS TBI frequently is experienced by trauma patients with concomitant ocular injury and should be considered in children admitted with major trauma. Resultant demographic patterns may help identify patients that have a higher risk of TBI leading to earlier diagnosis and treatment.
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Affiliation(s)
- Ryan Gise
- Ophthalmology & Visual Sciences, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York.
| | - Timothy Truong
- Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - David M Poulsen
- Ophthalmology & Visual Sciences, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Yssra Soliman
- Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Afshin Parsikia
- Department of Surgery (Trauma), Jacobi Medical Center, Bronx, New York
| | - Joyce N Mbekeani
- Ophthalmology & Visual Sciences, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York; Department of Surgery (Ophthalmology), Jacobi Medical Center, Bronx, New York
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7
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Drange OK, Vaaler AE, Morken G, Andreassen OA, Malt UF, Finseth PI. Clinical characteristics of patients with bipolar disorder and premorbid traumatic brain injury: a cross-sectional study. Int J Bipolar Disord 2018; 6:19. [PMID: 30198055 PMCID: PMC6162005 DOI: 10.1186/s40345-018-0128-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/04/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND About one in ten diagnosed with bipolar disorder (BD) has experienced a premorbid traumatic brain injury (TBI), while not fulfilling the criteria of bipolar and related disorder due to another medical condition (BD due to TBI). We investigated whether these patients have similar clinical characteristics as previously described in BD due to TBI (i.e. more aggression and irritability and an increased hypomania/mania:depression ratio) and other distinct clinical characteristics. METHODS Five hundred five patients diagnosed with BD type I, type II, or not otherwise specified, or cyclothymia were interviewed about family, medical, and psychiatric history, and assessed with the Young Mania Rating Scale (YMRS) and the Inventory of Depressive Symptoms Clinician Rated 30 (IDS-C30). Principal component analyses of YMRS and IDS-C30 were conducted. Bivariate analyses and logistic regression analyses were used to compare clinical characteristics between patients with (n = 37) and without (n = 468) premorbid TBI. RESULTS Premorbid TBI was associated with a higher YMRS disruptive component score (OR 1.7, 95% CI 1.1-2.4, p = 0.0077) and more comorbid migraine (OR 4.6, 95% CI 1.9-11, p = 0.00090) independently of several possible confounders. Items on disruptive/aggressive behaviour and irritability had the highest loadings on the YMRS disruptive component. Premorbid TBI was not associated with an increased hypomania/mania:depression ratio. CONCLUSIONS Disruptive symptoms and comorbid migraine characterize BD with premorbid TBI. Further studies should examine whether the partial phenomenological overlap with BD due to TBI could be explained by a continuum of pathophysiological effects of TBI across the diagnostic dichotomy. Trial registration ClinicalTrials.gov: NCT00201526. Registered September 2005 (retrospectively registered).
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Affiliation(s)
- Ole Kristian Drange
- Department of Mental Health, Norwegian University of Science and Technology, Trondheim, Norway. .,Department of Østmarka, Division of Mental Health Care, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.
| | - Arne Einar Vaaler
- Department of Mental Health, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Østmarka, Division of Mental Health Care, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Gunnar Morken
- Department of Mental Health, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Østmarka, Division of Mental Health Care, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Ole Andreas Andreassen
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,NORMENT, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Ulrik Fredrik Malt
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Research and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Per Ivar Finseth
- Department of Brøset, Division of Mental Health Care, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
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8
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Reid MW, Cooper DB, Lu LH, Iverson GL, Kennedy JE. Adversity and Resilience Are Associated with Outcome after Mild Traumatic Brain Injury in Military Service Members. J Neurotrauma 2018; 35:1146-1155. [PMID: 29357779 DOI: 10.1089/neu.2017.5424] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The objective of this study was to assess the associations between resilience, adversity, post-concussion symptoms, and post-traumatic stress symptom reporting after mild traumatic brain injury (mTBI). We hypothesized that resilience would be associated with less symptom reporting, and adversity would be associated with greater symptom reporting. This was a cross-sectional study of retrospective data collected for an ongoing TBI repository. United States military service members who screened positive for mTBI during a primary care visit completed the Trauma History Screen (THS), Connor-Davidson Resilience Scale (CD-RISC), Neurobehavioral Symptom Inventory (NSI), and post-traumatic stress disorder (PTSD) Checklist-Civilian Version (PCL-C). Data collected from February 2015 to August 2016 were used for the present study. Only participants with complete data for the above measures were included, yielding a sample size of 165 participants. Adversity (THS) and resilience (CD-RISC) scores were each correlated significantly with post-concussion (NSI) and traumatic stress (PCL-C) total and subscale scores in the hypothesized direction. Interactions between adversity and resilience were absent for all measures except the NSI sensory subscale. Four traumatic event types were significantly associated positively with most NSI and PCL-C total and subscale scores, but the age at which traumatic events were first experienced showed few and mixed significant associations. In conclusion, resilience and adversity were significantly associated with symptom endorsement after mTBI. Screening for cumulative adversity may identify individuals at greater risk of developing persistent post-concussion symptoms and/or PTSD, and interventions that increase resilience may reduce symptom severity.
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Affiliation(s)
- Matthew W Reid
- 1 The Defense and Veterans Brain Injury Center, San Antonio Military Medical Center , San Antonio, Texas; Neurology Clinic, JBSA Ft. Sam Houston, Texas
| | - Douglas B Cooper
- 2 Defense and Veterans Brain Injury Center, San Antonio Polytrauma Rehabilitation Center, South Texas Veterans Health Care System, Department of Psychiatry, University of Texas Health Science Center San Antonio, San Antonio, Texas
| | - Lisa H Lu
- 1 The Defense and Veterans Brain Injury Center, San Antonio Military Medical Center , San Antonio, Texas; Neurology Clinic, JBSA Ft. Sam Houston, Texas
| | - Grant L Iverson
- 3 Department of Physical Medicine and Rehabilitation, Harvard Medical School; Spaulding Rehabilitation Hospital; and Home Base, A Red Sox Foundation and Massachusetts General Hospital Program , Boston, Massachusetts
| | - Jan E Kennedy
- 1 The Defense and Veterans Brain Injury Center, San Antonio Military Medical Center , San Antonio, Texas; Neurology Clinic, JBSA Ft. Sam Houston, Texas
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9
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Osier ND, Bales JW, Pugh B, Shin S, Wyrobek J, Puccio AM, Okonkwo DO, Ren D, Alexander S, Conley YP, Dixon CE. Variation in PPP3CC Genotype Is Associated with Long-Term Recovery after Severe Brain Injury. J Neurotrauma 2016; 34:86-96. [PMID: 27225880 DOI: 10.1089/neu.2015.4343] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
After experimental traumatic brain injury (TBI), calcineurin is upregulated; blocking calcineurin is associated with improved outcomes. In humans, variation in the calcineurin A-gamma gene (PPP3CC) has been associated with neuropsychiatric disorders, though any role in TBI recovery remains unknown. This study examines associations between PPP3CC genotype and mortality, as well as gross functional status assessed at admission using the Glasgow Coma Scale (GCS) and at 3, 6, and 12 months after severe TBI using the Glasgow Outcome Score (GOS). The following tagging single nucleotide polymorphisms (tSNPs) in PPP3CC were genotyped: rs2443504, rs2461491, rs2469749, and rs10108011. The rs2443504 AA genotype was univariately associated with GCS (p = 0.022), GOS at 3, 6, and 12 months (p = 0.002, p = 0.034, and p = 0.004, respectively), and mortality (p = 0.007). In multivariate analysis controlling for age, sex, and GCS, the AA genotype of rs2443504 was associated with GOS at 3 (p = 0.02), and 12 months (p = 0.01), with a trend toward significance at 6 months (p = 0.05); the AA genotype also was associated with mortality in the multivariate model (p = 0.04). Further work is warranted to better understand the role of calcineurin, as well as the genes encoding it and their relevance to outcomes after brain injury.
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Affiliation(s)
- Nicole D Osier
- 1 Safar Center for Resuscitation Research, University of Pittsburgh , Pittsburgh, Pennsylvania.,3 School of Nursing, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - James W Bales
- 2 Department of Neurosurgery, University of Washington , Seattle, Washington
| | - Bunny Pugh
- 1 Safar Center for Resuscitation Research, University of Pittsburgh , Pittsburgh, Pennsylvania.,4 Safar Center for Resuscitation Research, Seton Hill University , Greensburg, Pennsylvania
| | - Samuel Shin
- 1 Safar Center for Resuscitation Research, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Julie Wyrobek
- 5 Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Ava M Puccio
- 6 Department of Neurological Surgery, University of Pittsburgh Medical Center , Pittsburgh, Pennsylvania
| | - David O Okonkwo
- 6 Department of Neurological Surgery, University of Pittsburgh Medical Center , Pittsburgh, Pennsylvania
| | - Dianxu Ren
- 3 School of Nursing, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Sheila Alexander
- 3 School of Nursing, University of Pittsburgh , Pittsburgh, Pennsylvania.,7 School of Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Yvette P Conley
- 3 School of Nursing, University of Pittsburgh , Pittsburgh, Pennsylvania.,8 Department of Human Genetics, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - C Edward Dixon
- 1 Safar Center for Resuscitation Research, University of Pittsburgh , Pittsburgh, Pennsylvania.,6 Department of Neurological Surgery, University of Pittsburgh Medical Center , Pittsburgh, Pennsylvania.,9 VA Pittsburgh Healthcare System , Pittsburgh, Pennsylvania
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10
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Irimia A, Van Horn JD. Functional neuroimaging of traumatic brain injury: advances and clinical utility. Neuropsychiatr Dis Treat 2015; 11:2355-65. [PMID: 26396520 PMCID: PMC4576900 DOI: 10.2147/ndt.s79174] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Functional deficits due to traumatic brain injury (TBI) can have significant and enduring consequences upon patients' life quality and expectancy. Although functional neuroimaging is essential for understanding TBI pathophysiology, an insufficient amount of effort has been dedicated to the task of translating functional neuroimaging findings into information with clinical utility. The purpose of this review is to summarize the use of functional neuroimaging techniques - especially functional magnetic resonance imaging, diffusion tensor imaging, positron emission tomography, magnetic resonance spectroscopy, and electroencephalography - for advancing current knowledge of TBI-related brain dysfunction and for improving the rehabilitation of TBI patients. We focus on seven core areas of functional deficits, namely consciousness, motor function, attention, memory, higher cognition, personality, and affect, and, for each of these, we summarize recent findings from neuroimaging studies which have provided substantial insight into brain function changes due to TBI. Recommendations are also provided to aid in setting the direction of future neuroimaging research and for understanding brain function changes after TBI.
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Affiliation(s)
- Andrei Irimia
- USC Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - John Darrell Van Horn
- USC Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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