Active clinical trials for "Brain Injuries"

This study explores the changes in whole-brain connectivity that occur during recovery from severe Traumatic Brain Injury and how these changes are related to the recovery of consciousness. Multimodal neuroimaging techniques will be used in a longitudinal fashion while patients are undergoing neurorehabilitation and after one-year of the TBI episode.

The purpose of this study is to determine whether there is a quantitative relationship between brain processes seen by a MRI and visual deficits caused by mild to moderate traumatic brain injuries (mTBI).

Morbidity and mortality of ICU patients is increased by the development of a "immunosuppression" systemic (IS). This IS develops in the early hours of hospitalization and is responsible for severe infections, including viral reactivations (Cytomegalovirus or Herpes Simplex Virus). Viral reactivation was associated with increased morbidity and mortality in intensive care units. In clinical practice, they are searched at the onset of organ failure or unexplained fever. The investigators wish to conduct this research in the stroke patients to assess the predictive power of these viral reactivations on the duration of mechanical ventilation.

The objective of the study is to determine the relative roles for various testing modalities in the diagnosis and prognosis of mild traumatic brain injury.

This study examine the possible microstructural changes in the middle brain after mTBI using diffusion MRI

The investigators will obtain thromboelastography (TEG) on pediatric patients admitted to the Rady Children's Hospital ICU after traumatic brain injury on admission to our ICU and after 24 hours of care. The investigators hypothesize that TEG will identify abnormalities of coagulation that are not identified by traditional coagulation studies, i.e. prothrombin time (PT), activated partial thromboplastin time (aPTT), and international normalized ratio (INR).

It is hypothesized that the long-term results of rehabilitation and subsequent aging after Brain Trauma depend on brain's premorbid anatomical (structural) and functional (cognitive, emotional) reserves. The purpose of this study are: to determine whether such reserves exist. to study their convergent and discriminant validity. to study their characteristics.

The purpose of this study is to determine early detection of concussion for those at risk of developing symptoms and to be able to detect subconcussive cerebral impairment, and thus gaining a better understanding of the injury patterns for concussions in Men's and Women's Collegiate sports.

The PreTBI II study aims to investigate the diagnostic potential of prehospital S100B and GFAP measurements in prediction of need for neurosurgical observation and/or intervention in moderate TBI patients, to rule-in high-risk patients. Ultimately to select patients who will benefit from neuro surgical expertise in specialized departments and thereby possibly better patient outcome. Hopefully also minimize treatment delay, secure optimal resource consumption and streamline patient courses by predicting the presence of neurotrauma. Hypotheses: A prehospital serum S100B level > 0,10 microgram/L and expectedly above a certain and currently unknown cut-off value indicates the need for neurosurgical observation and/or intervention in moderate TBI patients. A prehospital serum GFAP level above a certain and currently unknown cut-off value can significantly predict a need for urgent neurosurgical observation and/or intervention in moderate TBI patients. Biomarker dynamics between prehospital and in-hospital biomarker values of S100B and GFAP can significantly predict a need for urgent neurosurgical observation and/or intervention. Biomarker dynamics between prehospital and in-hospital biomarker values of S100B and GFAP can significantly predict hospital course and outcome of patients with moderate TBI.

Mechanical ventilation is an important support strategy for critically ill patients. It could improve gas exchange, reduce the work of breathing, and improve patient comfort. However, patient-ventilator asynchrony, which defined as a mismatch between the patient and ventilator may obfuscate these goals. Studies have shown that a high incidence of asynchrony (asynchrony index > 10%) is associated with prolonged mechanical ventilation and ICU length of stay and high mortality. So far, there have been only a few studies on the epidemiology of asynchrony in brain-injured patients. Investigators conduct a prospective observational study among brain-injured patients to determine the prevalence, risk factors and outcomes of patient-ventilator asynchrony. Esophageal pressure monitoring, a surrogate for pleural pressure, combined with airway pressure and flow waveforms is used to detect patient-ventilator asynchrony.