Active clinical trials for "Brain Injuries, Traumatic"

The purpose of this study is to determine if hypertonic saline with and without dextran can improve neurologic outcomes in victims of severe traumatic brain injury (TBI). Injury and lost blood from trauma can cause your body to go into shock (low blood pressure related to blood loss). This decreased blood flow can lead to organ damage. In order to restore the blood pressure and blood flow, the medics give fluids into the patients' veins as soon as possible. This is called "resuscitation". The fluid most commonly used is "isotonic" or one that is the same salt concentration as the blood. The investigators are trying to determine if infusing a "hypertonic" fluid or one more concentrated than the blood can increase the blood pressure and restore blood flow more efficiently. The hypertonic fluids they are using are called hypertonic saline with dextran (HSD) and hypertonic saline (no dextran). Hypertonic saline is a salt solution that is slightly more concentrated than blood. Dextran is a sugar solution.

Following brain injury, complex interactions between the nervous system and other organs are frequently encountered. Systemic effects may be induced by dysregulation of the hypothalamic-pituitary-adrenal axis and the autonomic nervous system. This observational study will investigate the link between clinical, physiological and biochemical expressions of dysautonomic reactions and physiological stress, and their relations to sympathetic activation in traumatic brain injury patients treated in the neurointensive care unit.

The purpose of this randomized control trial study is to determine if an active rehabilitation (low intensity exercise program) in combination with a comprehensive education intervention (standard care) is more effective than the comprehensive education intervention alone in reducing post-concussion symptoms and improving participation in daily activities in youth who have persistent post-concussion symptoms.

St. Michael's Hospital (SMH) provides service to individuals with some of the most severe brain injuries and intensive care needs in Canada. These patients often require prolonged intensive care admissions, lengthy hospital stays, involvement of many health professionals, and long-term support for ongoing care requirements. Many hospitals face resource limitations, specifically involving the health disciplines and their ability to provide frequent intervention. It has been proposed that multisensory stimulation (i.e. exposing the patient to various sights, sounds, smells, etc.) in the early stages of brain injury recovery may result in improved responsiveness/cognitive function. Previous research has indicated a potential benefit for early multisensory stimulation intervention for patients with severe brain injury. However there is still not enough conclusive evidence to confirm whether the intervention is truly effective. The investigators are proposing a pilot randomized controlled study (placebo-controlled, double-blinded) to determine the feasibility and examine the effectiveness of early multisensory stimulation with patients following severe brain injury who remain in a coma, vegetative state, or minimally conscious state. Eligible patients will be randomized to a control group (standard care + family/caregiver education) or an intervention group (standard care + family/caregiver education + early sensory intervention). Data regarding number of patients enrolled, amount of intervention completed, percentage of outcome data collected, patient's level of responsiveness and cognitive function will be collected before and after the intervention period, using several outcome measures. The investigators hope to determine the feasibility of conducting this type of study within this clinical setting and the effectiveness of multisensory stimulation with this patient population.

Research by the investigators' team and others demonstrates that posttraumatic stress disorder (PTSD), depression, alcohol use disorders (AUD), traumatic brain injury (TBI), and chronic pain frequently co-occur among post-9/11 war Veterans and are associated with functional impairment and suicide risk; however, no treatment currently exists that has been specifically designed to promote functional recovery among Veterans experiencing any combination of these most common mental and physical wounds of war. The investigative team has: (A) identified multiple modifiable psychosocial factors (emotion regulation, psychological flexibility, self-compassion) that prospectively predict impairment and suicidal ideation in Veterans; (B) characterized long-term trajectories of resilience and functional disability in Veterans; (C) determined that high utilization of VA mental health services appears to have little, if any, impact on the functional recovery of Veterans on the moderate and severely impaired trajectories; (D) identified psychological flexibility (i.e., the ability to remain present in the moment despite emotional distress and to persist in changing behavior in the pursuit of one's values and goals) as a unique, prospective predictor of membership in the severely impaired functional trajectory and of suicidal ideation, even after accounting for the effects of co-morbidity; and (E) demonstrated that Acceptance and Commitment Therapy (ACT)-a trans-diagnostic, mindfulness-based behavior therapy that seeks to improve functioning by targeting psychological flexibility -can lead to recovery, including sustained improvements in functional disability, quality of life (QoL), suicidal ideation, PTSD, and AUD symptoms among severely impaired Veterans with co-occurring PTSD-AUD. This study is Phase 3 of Project SERVE (Study Evaluating Returning Veterans' Experiences). Through two prior RR&D MERIT awards, SERVE has followed a cohort of post-9/11 Veterans since 2010 and has identified numerous risk and protective factors. SERVE's overall objective is to understand and improve the long-term functional outcomes of post-9/11 Veterans. Consistent with the investigators' conceptual model, the central hypothesis is that psychological flexibility and other trans-diagnostic treatment targets mediate the effects of the most common mental and physical wounds of war on long-term functioning and self-directed violence (i.e., suicide risk). Thus, integrated interventions specifically designed to improve functioning associated with these conditions are most likely to promote long-term recovery among the most impaired Veterans. The investigators will test the central hypothesis and accomplish the overall objective by pursuing the following specific aims: Aim 1: Identify treatment targets that prospectively predict functional disability, family functioning and self-directed violence (SDV) in post-9/11 Veterans with PTSD, depression, chronic pain, TBI, and/or AUD. To achieve this aim, the investigators will follow 500 Veterans for 2 years in order to prospectively evaluate the impact of several novel, treatment-relevant factors on functional disability and SDV over time. H1: Novel factors (mindfulness, perceived burdensomeness, thwarted belongingness, and moral injury) along with established treatment targets (psychological flexibility, self-compassion, and emotion regulation) will prospectively predict functional disability and SDV after accounting for covariates.

Investigators will measure cerebrovascular reactivity (CVR) using functional near-infrared spectroscopy (fNIRS) and magnetic resonance imaging (MRI) during the chronic phase after repetitive mild traumatic brain injury (rmTBI) as a biomarker of traumatic cerebrovascular injury (TCVI). We hypothesize that CVR will be decreased in patients with rmTBI and that these decreases will correlate with clinical outcomes. Furthermore, we predict that 5 week administration of a phosphodiesterase 5 (PDE5) inhibitor, sildenafil citrate, will augment CVR in patients with a history rmTBI.

This pilot study aims to investigate the efficacy of fMRI-targeted repetitive transcranial magnetic stimulation (rTMS) in treatment of major depression associated with traumatic brain injury (TBI). Half of patients will receive active treatment, while the other will receive a sham treatment with the option of receiving open-label active treatment afterwards.

The primary objective of the study is to compare the efficacy of duloxetine 60 mg by mouth daily with placebo in the prevention of depression associated with mild/moderate traumatic brain injury and to enhance cognitive function.

Main purpose of the study is to evaluate the effect of sevoflurane on intra cranial pressure (ICP) after traumatic brain injury. Patients admitted for traumatic brain injury equipped with ICP measurement will be sedated with sevoflurane via the Anaconda device during 12 hours. Sedation will be controlled with BIS.

The purpose of this study is to improve the ability to diagnose problems after mild traumatic brain injury (MTBI) and to test a drug that may improve the outcome from these injuries. Of the more than 1.5 million people who experience a traumatic brain injury (TBI) each year in the United States, as many as 75% sustain a mild TBI which can cause long-term or permanent impairments/disabilities in a significant proportion of patients. In addition, traumatic brain injury has become a signature injury of the wars in Iraq and Afghanistan. For people with these injuries, it is difficult to determine whether symptoms are due to the head injury or another condition, such as Post-traumatic Stress Disorder. In this project, there are 3 observational studies that involve testing of mental functions and behavior, imaging of the brain with special x-ray procedures, and blood samples to look at glandular function, which may be affected by head injury. A fourth study is a test of a drug, atorvastatin, which may provide protection for injured brain cells and improve outcome. By collecting and analyzing the information from these tests, it will be possible to make the process of diagnosing mild TBI or post traumatic stress disorder (PTSD) more precise, and also to see if atorvastatin is a helpful drug for patients with MTBI.