Biomarkers of Mild and Moderate Traumatic Brain Injury
Brain InjuriesTraumaticThe purpose of this study is to assess if putative brain injury biomarkers have utility as blood-based traumatic brain injury (TBI) diagnostic and monitoring tools. This will be accomplished by examining the relationships between potential serum-based TBI biomarkers and clinical measures of injury severity, occurrence of complications, and outcome, in subjects with mild or moderate TBI. The assay will be evaluated in a sample population of subjects over the age of 18 who have been referred to the health care provider for closed head injury evaluation.
Brain Indices of Risk for Posttraumatic Stress Disorder (PTSD) After Mild Traumatic Brain Injury...
PTSDThis is a prospective, longitudinal cohort study to evaluate the associations between indices of brain structure and function (measured at baseline, as soon as possible after injury) and course of post-traumatic stress disorder (PTSD) symptoms. Subjects will be service members who have sustained mild traumatic brain injury (classified as either "impact-induced mTBI" or "blast-induced mTBI"; n = 100 completers) or an extracranial injury (ECI) with no evidence of traumatic brain injury (TBI) (n = 100 completers). Subjects will complete an assessment battery at baseline and 6 months later that includes (1) structural magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) derived from a 3-Tesla magnet; (2) event-related brain potentials (ERPs) derived from brain electrical activity; (3) neurocognitive tests; and (4) neurological soft signs (NSS). Specific indices of brain structure and function derived from these assessments are hypothesized to demonstrate a significant relationship with course of PTSD symptoms, which will be measured at baseline, 3 months, and 6 months.
Cerebrospinal Fluid Endostatin/Collagen XVIII Concentrations in Patients With Severe Traumatic Brain...
Traumatic Brain InjuryAngiogenesis is an important pathophysiological response to traumatic brain injury (TBI) and modulated by pro- and anti-angiogenic factors. Recent studies have suggested that endogenous angiogenesis inhibitor endostatin/collagen XVIII might play an important role in the secondary brain injury following TBI. The aim of this study was to investigate early changes in the concentrations of CSF endostatin/collagen XVIII after TBI and evaluated the relations of endostatin/collagen XVIII to injury severity and clinical outcome. Endostatin/collagen XVIII concentrations were measured serially for 1 week after hospitalization by using the enzyme linked immunosorbent assay method in the cerebrospinal fluid of 30 patients with TBI and a Glasgow Coma Scale score of 8 or less on admission. Comparative analysis were used to determine if its serial changes correlate with the GCS score and prognosis. Receiver operating characteristic curve was used to appraise the value of CSF endostatin/collagen XVIII levels in predicting the prognosis of patients with severe head injury.
Service Member Fatigue and Lack of Motivation Following Concussion
FatigueTraumatic Brain InjuryBackground: - Many service members have reported feeling tired, a loss of motivation, mood changes, and problems working with others after they have a concussion during deployment. These problems may lead to problems with their job and relationships. This study hopes to figure out what parts of the brain may be affected in people with these problems after a concussion. Objectives: - To learn more about the problems that may occur after service members have a concussion during deployment and return home. Eligibility: Service members or veterans between 18 and 40 years of age who have had a mild traumatic brain injury (concussion) in the past 6 months. Companions (at least 18 years of age) of the service members will also be included in this study. Companions will have interacted with the service member at least 1 hour a week since deployment. Design: Service members will have 1 week of tests at the National Institutes of Health Clinical Center. Companions will have 2 days of tests at the Center. Each day, service members will have 4 or 8 hours of tests. Tests will include a medical history and physical exam, neuropsychological tests and imaging studies. The tests will ask about fatigue, stress, mood, pain, daily activities, and family support. The imaging studies will measure brain function at rest and during activity. Companions will have a medical history and physical exam. They will also complete several questionnaires about themselves as well as the service member/veteran. The tests will ask about fatigue, stress, mood, pain, daily activities, and family support....
Prehospital Traumatic Brain Injury
Traumatic Brain InjuryThe aim of the study is to measure the effect of Finnish physician-staffed EMS unit treatment methods on traumatic brain injury (TBI) patient prognosis.
Evaluating a Novel Method of EEG Evoked Response Potential Analysis in Sport Concussion Assessment...
Mild Traumatic Brain InjuryMild traumatic brain injury (mTBI), also known as concussion, occurs commonly in sport. Despite ongoing research, there is no highly sensitive clinical test for cognitive function. This makes the clinical diagnosis of concussion particularly difficult as the clinical presentation of concussion is highly variable with symptoms often evolving over time. Given the variability in concussion presentations, there is no single test that can diagnose a concussion. Current recommendations are that sports medicine providers apply a multifaceted concussion assessment battery that combines subjective symptoms, motor control and cognitive assessment. This investigation is designed to evaluate the clinical utility of ElMindA's BNA scores in detecting and managing concussive injuries. This study will establish the reliability of BNA™ scores over clinically relevant assessment intervals and investigate the effect of SRC and sub-concussive head impacts on BNA scores.
An Investigator Initiated Study to Evaluate the Effectiveness of Brain Network Activation (BNA™)...
HealthyMinor Traumatic Brain Injury (TBI)Currently, there is no direct, reliable, bed-side, and non-invasive method for assessing changes in brain activity associated with concussion. Event Related Potentials (ERPs), which are temporal reflections of the neural mass electrical activity of cells in specific regions of the brain that occur in response to stimuli, may offer such a method, as they provide both a noninvasive and portable measure of brain function. The ERPs provide excellent temporal information, but spatial resolution for ERPs has traditionally been limited. However, by using high-density electroencephalograph (EEG) recording spatial resolution for ERPs is improved significantly. The paradigm for the current study will combine neurophysiological knowledge with mathematical signal processing and pattern recognition methods (BNA™) to temporally and spatially map brain function, connectivity and synchronization. The proposed study will provide additional evidence for the utility and contribution of the BNA™ test (reflecting temporal and spatial changes in brain activity as well as brain functional connectivity associated with concussion) in concussion management. The BNA test is basically divided to 3 phases - first EEG data is collected from subjects using an EEG system while the subject is performing a cognitive task in front of a computer. The EEG data is then analyzed using the advanced BNA™ technology. Finally, a report of the BNA™ test is generated.
Telerehabilitation for OIF/OEF Returnees With Combat-Related Traumatic Brain Injury
Traumatic Brain InjuryPost-traumatic Stress DisorderThe scientific objective of this program is to meet the rehabilitation needs of combat wounded Veterans with mild to moderate Traumatic Brain Injury (TBI) via telerehabilitation and determine the effect of this modality of care on patients' physical health and outcomes including function and community participation. The investigators will also evaluate the benefits and limitations of rehabilitation using telehealth from the Veteran and caregiver perspectives and evaluate the impact of rehabilitation via telehealth on Veterans Administration (VA) healthcare facility use.
Neurocognitive Evaluation of Mild Traumatic Brain Injury in the Hospitalized Pediatric Population...
Mild Traumatic Brain InjuryConcussionBrain injuries from trauma are common in children, often resulting in death and disability. Most brain injuries are minor, yet their treatment can be challenging. Because there are many different scales used to characterize the severity of brain injury, there is no consensus regarding how to manage patients with minor brain injuries. Specifically, there is no agreement on recommendations regarding the safety of return to activities following injury. In young athletes with minor brain injuries (i.e. concussions) there is strong data suggesting that return to baseline neurologic function is often delayed by days or weeks. Children allowed to return to activities too soon may be at a higher risk for a second concussion, may delay recovery or, in rare cases, die. Researchers have designed a computer-based testing system (ImPACT©) to objectively test for neurologic deficits following injury. This test has been used primarily in athletes following a concussion but is also applicable to children with brain injuries from non-sports related traumas. We propose to utilize this testing in pediatric patients admitted to the hospital with minor brain injury. The test would be administered at the time of the hospitalization as well as in the outpatient trauma clinic at the time of routine follow up. The test would allow us to determine if there are neurologic deficits, potentially subclinical, in these brain injured patients and how quickly they recover from their injuries. If successful, the testing will likely be useful in other clinical settings such as the primary care office (e.g. pediatrician), specialty care office (e.g. sports medicine), or emergency room to determine if an injured child requires additional intervention.
Effects of Transport on Patients With Traumatic Brain Injury
Traumatic Brain InjuryHospitalized patients are often moved from their rooms to other hospital locations, particularly imaging facilities. For patients with traumatic brain injury, such movements may raise the risk of secondary brain injuries. The purpose of this study is to monitor brain injured patients during transport and to measure the resulting changes in intracranial pressure. This will allow for documentation of the frequency of secondary injury and help in understanding their causes.