Articles: traumatic-brain-injuries.
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Randomized Controlled Trial Multicenter Study Comparative Study
Effect of age of transfused red blood cells on neurologic outcome following traumatic brain injury (ABLE-tbi Study): a nested study of the Age of Blood Evaluation (ABLE) trial.
Anemia is common in critically ill patients with traumatic brain injury, and often requires red blood cell transfusion. Studies suggest that prolonged storage causes lesions of the red blood cells, including a decreased ability to carry oxygen. Considering the susceptibility of the brain to hypoxemia, victims of traumatic brain injury may thus be more vulnerable to exposure to older red blood cells. ⋯ Overall, transfusion of fresh red blood cells was not associated with a better neurologic outcome at six months in critically ill patients with traumatic brain injury. Nevertheless, we cannot exclude a differential effect according to the patient baseline prognosis.
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Randomized Controlled Trial
Effects of mild traumatic brain injury and post-traumatic stress disorder on resting-state default mode network connectivity.
Mild traumatic brain injury (mTBI) and post-traumatic stress disorder (PTSD) are common outcomes for service members. Abnormal connectivity within neural networks has been reported in the resting brain of mTBI and PTSD patients, respectively; however, the potential role of PTSD in changes to neural networks following injury has not been studied in detail. Using a data-driven approach, the present analysis aimed to elucidate resting state functional connectivity in the default mode network (DMN) in those with mTBI only and those with comorbid mTBI and PTSD. ⋯ For all subjects with mTBI, network connectivity correlated inversely with PTSD checklist score (p < 0.05). Additionally, distinct associations (p < 0.05) between medial prefrontal cortex connectivity and PTSD symptoms and, separately, posterior cingulate cortex connectivity and mTBI-related cognitive deficits were found. To our knowledge, this is the first study to report a differential relationship between DMN components and both post-traumatic symptoms and cognitive outcomes.
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Randomized Controlled Trial Multicenter Study Comparative Study
A Comparative Study of Bolus Dose of Hypertonic Saline, Mannitol, and Mannitol Plus Glycerol Combination in Patients with Severe Traumatic Brain Injury.
This prospective randomized controlled study compared the efficacy of an equiosmolar and isovolumetric dose of 3% hypertonic saline, 20% mannitol, and 10% mannitol plus 10% glycerol combination in reducing the raised intracranial pressure (ICP) in patients with severe traumatic brain injury (TBI). ⋯ All 3 osmotic compounds exhibit comparable effectiveness in reducing ICP when a similar osmotic load is administrated, but 3% hypertonic saline appeared to be more effective followed by 10% mannitol plus 10% glycerol combination and 20% mannitol. A dose of 1.4 mL/kg can be recommended as an initial bolus dose for 3% hypertonic saline. Hypertonic saline can be recommended to treat patients with pretreatment hypovolemia, hyponatremia, or renal failure. There is no clear benefit compared with 20% mannitol in regard to neurologic outcome, even though there is a minor positive trend for 3% hypertonic saline and 10% mannitol plus 10% glycerol combination.
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Randomized Controlled Trial Multicenter Study
Recovery trajectories and long-term outcomes in traumatic brain injury: A secondary analysis of the phase 3 COBRIT clinical trial.
Prospects for recovery after traumatic brain injury (TBI) are often underestimated, potentially leading to withdrawal of care in the comatose TBI patient who may ultimately have a favorable outcome with aggressive care. Outcomes and trajectories of recovery in a large series of patients with TBI were evaluated at 30, 90, and 180 days postinjury. ⋯ In this secondary analysis of the COBRIT trial, most patients had favorable outcomes by the GOS-E at 6 months postinjury in all complicated mild and moderate TBI groups, with over half of patients with severe TBI achieving a favorable outcome as well. Of subjects in a vegetative state (GOS-E score 2) at 1 month postinjury, 18% improved to a favorable outcome by 6 months postinjury. There was substantial improvement in all groups from 1 to 6 months, and this improvement may continue beyond 6 months. Clinical trials in TBI should consider recovery curves with repeated measures to assess outcomes because arbitrary single-moment outcome determination likely underestimates treatment effect in TBI care.
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Journal of neurotrauma · Apr 2019
Randomized Controlled TrialRepetitive Transcranial Magnetic Stimulation with Resting-State Network Targeting for Treatment-Resistant Depression in Traumatic Brain Injury: A Randomized, Controlled, Double-Blinded Pilot Study.
Repetitive transcranial magnetic stimulation (rTMS) has demonstrated antidepressant efficacy but has limited evidence in depression associated with traumatic brain injury (TBI). Here, we investigate the use of rTMS targeted with individualized resting-state network mapping (RSNM) of dorsal attention network (DAN) and default mode network (DMN) in subjects with treatment-resistant depression associated with concussive or moderate TBI. The planned sample size was 50 with first interim analysis planned at 20, but only 15 were enrolled before the study was terminated for logistical reasons. ⋯ Active treatment led to increased sgACC-DMN connectivity (d = 1.55) and increased sgACC anti-correlation with the left- and right-sided stimulation sites (d = -1.26 and -0.69, respectively). This pilot study provides evidence that RSNM-targeted rTMS is feasible in TBI patients with depression. Given the dearth of existing evidence-based treatments for depression in this patient population, these preliminarily encouraging results indicate that larger controlled trials are warranted.