3 Clinical Trials for Various Conditions
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.
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.
Background: Patients with mild blunt traumatic brain injury (TBI) are frequently transferred to Level 1 trauma centers (L1TC) if they have any positive finding of any acute intracranial injury identified on a CT scan of the head. The hypothesis for the study is that patients with such injuries and minor changes on the Head CT scan can be safely managed at community hospitals (CH). Methods: Patients with blunt, mild TBI (defined as a GCS 13-15 at presentation) presenting to CH, L1TC, and transferred from CH to L1TC between March, 2012 and February, 2014 were included. Minor changes on head CT were defined as: 1) epidural hematoma\<2mm; 2) subarachnoid hemorrhage\<2mm; 3) subdural hematoma\<4mm; 4) intraparenchymal hemorrhage\<5mm; 5) minor pneumocephalus; or 6) linear or minimally depressed skull fracture. TBI-specific interventions were defined as intracranial pressure monitor placement, administration of hyperosmolar therapy, or neurosurgical operation. Three groups of patients were compared: 1) those receiving treatment at CH, 2) those transferred from CH to L1TC, and 3) those presenting directly to L1TC. The primary endpoint was the need for TBI-specific intervention and secondary outcome was death of any patient.