Active clinical trials for "Brain Injuries"

Aim of the study The investigators aim to establish: Whether noradrenaline (NA) infusion has a significant effect on coagulation and fibrinolysis in patients with severe traumatic brain injury (TBI). Whether disruption of haemostasis can be recorded with a computerized tomography (CT) scan. Whether there is a significant difference between the values of haemostasis parameters in the internal jugular vein and the radialis artery. The hypotheses In the early stage of treatment (1-3 hours), an increased formation of thrombin occurs in patients with severe isolated TBI that are treated with NA; consequently, platelet use increases in comparison with patients who don't need NA, as do coagulation factors and hyperfibrinolysis. The concentration of NA correlates with thrombin formation and the correlation is stronger in higher doses of NA. Thrombin formation will decrease more slowly in the group that will receive NA therapy in comparison to the group that will not receive NA therapy.

We are extending the researches of Taiwan neurosurgery traumatic brain injury (TBI) database which is led by Professor WT Chiu in Taipei Medical University and will recruit mild TBI (mTBI) participants who have ever been registered in the database. This database has been established for over 15 years and contains the information of over 150000 patients. It is one of the largest TBI database in the world. TBI usually results from traffic accidents, falls or violence events. Most of the victims are young people and the victims suffer from life-threatening and mental-physical deficits. Mild TBI (mTBI) usually was neglected before because its symptoms, signs are mild and mTBI patients usually were not obtained enough initial treatment. Therefore, mTBI might result in long-term cognitive and affective impairments, such as depression, indifference, anxiety, memory impairment, loss of attention and executive function. These late effects not only decrease the life quality of patients and their family but also increase the social and medical burden. Recent epidemiology studies have pointed out that TBI would increase the risk for dementia, especially Alzheimer disease (AD) by 2-4 times. However, the association between TBI severity, number of repeats, genetic factors and onset of AD remains further investigation. Amyloid-β (Aβ) plaques and neurofibrillary tangles are the pathological hallmarks for AD. Accumulation of Aβ is considered to be the first step of pathophysilogy of AD. Compelling researches have supported TBI accelerates the formation and accumulation of Aβ. These findings could link TBI with AD but the previous researches had limitations. There was lack of mTBI pathology data so the impacts of mTBI on Aβ accumulation were still obscure. By amyloid-PET, we could study the effects of mTBI on the accumulation of Aβ and this tool could be helpful for understanding the real impacts and pathophysiological mechanisms of mTBI on AD.

Brain injury from explosive blast is a prominent feature of contemporary combat. Although protective armor and effective acute medical intervention allows soldiers to survive blast events, a growing number of veterans will have disability stemming from blast-related neural damage. Soldiers also return from combat with psychological disabilities caused by traumatic war events. The clinical presentation of individuals with blast-related neural damage and post-traumatic psychopathology are markedly similar and thus a clear description of the direct consequences of explosive blast is complicated by the emotional and cognitive sequelae of psychological trauma. We will use sophisticated measures of neural function and structure to characterize brain injury from explosive blasts in a sample of Operation Iraqi Freedom (OIF) National Guard soldiers who returned from deployment in the fall of 2007. Survey data gathered near the end of deployment indicated that over 50% of the brigade had been exposed to direct physical effects of explosive blasts. To fully characterize the effects of blast on the brain and differentiate them from post-traumatic stress disorder, we will contrast groups of soldiers exposed to blast and with groups experiencing post-traumatic stress disorder. This investigation will improve the characterization of blast-related traumatic brain injury, describe the essential features of the condition in terms of neural function and structure to inform diagnosis, and characterize mechanisms of recovery after blast-related neural injury to allow the creation of interventions that return soldiers to maximum levels of functioning.

Serious head trauma is a common and pathology and responsible of high morbidity and mortality. The major challenge, from the very first hours, is to limit cerebral ischemia by controlling secondary brain injury factors. These parameters must be integrated early in order to guide the better cerebral resuscitation. Brain monitoring is multimodal:transcranial Doppler, intracranial pressure sensor, cerebral tissue pressure in O2. In the case of refractory intracranial hypertension to well-conducted medical treatment, targeted temperature control showed its efficacy on the control of intracranial pressure. There are few data in the literature on PbtO2 modifications during therapeutic hypothermia. PbtO2 monitoring is now commonly used according to literature data, showing the benefit of the latter but the interpretation of its values during the phase of targeted temperature control is not known. Due to the lack of data on the variation of values of PbtO2 during the hypothermia phase, values falsely comfortable or falsely weak could lead respectively to a lack of support of an episode of tissue hypoxia or the introduction of unjustified aggressive therapeutics.

The research project aims to better understand the multiple factors related to the clinical evolution and the social participation of traumatic brain injured (TBI). The project will provide better understanding of the patients' evolution during rehabilitation after TBI in terms of adaptation and social participation, assess the effect of rehabilitation and study social participation outcomes and quality of life of TBI patients one-year post-rehabilitation. Project benefits include improvement of clinical practices and support in decision-making. The objectives of this research project are: Part 1: To provide a picture of the evolution, in terms of social adaptation and participation of patients during rehabilitation after a TBI. Part 2: To study social participation outcomes and quality of life of TBI individuals one year after the end of their rehabilitation.

Mild traumatic brain injury (mTBI) accounts for 70-90% of brain injuries, with 600 cases of mTBI per 100 000 people in the united states, but only 100-300 mTBI patients per 100 000 people receive hospital-based care. Symptoms reported immediately after injury tend to diminish over the following 10 days and are generally resolved by 3 months. However, in 15-25% of cases , problems persist, and may even worsen, at 3 months. Physical, emotional, and behavioral factors can be affected. Physical disorders include pain and fatigue. Sleep disorders are also common. Persistent symptoms can affect patient outcomes (affecting all aspects of life) and increase public healthcare costs .In a previous study (NCT03811626, Efficacy of Psychoeducation and Cognitive Rehabilitation After Mild Traumatic Brain Injury for Preventing Post-concussional Syndrome in Individuals With High Risk of Poor Prognosis: A Randomized Clinical Trial. The investigators were able to demonstrate that early multidisciplinary management improved the outcome and prognosis of patients by statistically significantly reducing the percentage of patients with Post traumatic syndrome distress at six months (6% for the treated group versus 52% for the control group, p < 0.001). It seems important to verify that if this short-term improvement (6 months after the trauma) persists in the long term, and therefore at a distance from the end of the initially proposed rehabilitation.

The purpose of this study is to observe the relationship between the level of lipid peroxidation products in serum of patients with traumatic brain injury and secondary coagulation disorders.

Head injuries are responsible for 1.4 million visits to hospital each year in the United Kingdom (UK). Most patients are allowed home the same day and make a full recovery, but some will have persistent symptoms. The investigators aim to use the latest generation of imaging technology to investigate those with mild traumatic brain injury (mTBI) to better assess them. The investigators will invite patients presenting following trauma to the Emergency Department at Queen's Medical Centre, Nottingham, UK to participate. The investigators will compare those who have a suffered an mTBI to those who have non-head traumatic injuries. The investigators will use two magnetoencephalogram (MEG) systems and ultra-high field magnetic resonance imaging (MRI) to record the functioning and structure of the brain within days of participants' injury. The investigators will test memory and thinking skills, then follow participants for six months, record the severity of participants' symptoms, and find out who does not make a full recovery. Multimodal imaging will consist of a standard MEG device using Superconducting Quantum Interference Device (SQUID) sensors, a novel MEG device using Optically Pumped Magnetometer (OPM) sensors and seven Tesla MRI. The investigators will test whether these innovative imaging techniques are more sensitive to the acute damage that mTBI causes than routine imaging. The investigators will also test whether early imaging can reveal who is most seriously affected, identifying those who will not recover without additional support. It is currently not clear what the predominant mechanism of damage that causes these long-term problems is and the investigators hope this study will address this. The Medical Research Council is funding this work

The aim of this study is to investigate whether a tDCS-accompanied intensive naming therapy leads to a performance improvement in patients with chronic aphasia induced by a moderate TBI

Traumatic brain injuries (TBI) are one of the most common reasons for patients to attend the emergency department (ED). 90% of patients with TBI are defined as mild TBI (mTBI). A small minority of patients with mTBI would show pathological computed tomography (CT) results and even fewer need neurosurgical intervention. Nevertheless, complications would be so severe, if neurosurgical intervention is delayed, that it has become common practice to subject all patients with mTBI to CT. The high number of CT scans has an impact on health care resources but may also involve risk by subjecting patients through potentially harmful ionizing radiation. Several independent research groups have attempted to optimize CT use in mTBI patients by forming guidelines that aim to identify patients at high risk for intracranial complications. Most guidelines have been published in the past 15 years and have been validated both prospectively internally and externally; all guidelines have been shown to be safe when implemented in clinical use with few missed complications. However the number of CT scans has not been reduced dramatically, in some cases it has even increased. In 2013, the new Scandinavian guidelines (SNC13) were published. They are the first guidelines that use a biomarker, S100B, as a tool for managing patients with mTBI. Although S100B has a low specificity for intracranial complications, a high sensitivity makes it suitable to be implemented into clinical practice as a tool for CT reduction. Previous SNC guidelines have been compared to other prominent guidelines with impressive results. The SNC13 have been externally validated in a retrospective study from the USA that was underpowered for important outcomes. Nevertheless, SNC13 have already been partially implemented in clinical practice in Scandinavia. However, a strict multicenter validation has not been performed yet nor a systematic comparison to other available guidelines. Our primary aim is to validate the performance of the SNC13 in predicting intracranial complications in adult patients presenting with traumatic head injury in Swedish hospitals. A secondary aim is to compare the performance of SNC 13 with 6 other clinical guidelines, with respect to important outcomes. Moreover, to explore the performances of different biomarkers in predicting intracranial complications in predefined subgroups of TBI. Finally, to evaluate the possibility of further improvement of the SNC13.