Journal of neurotrauma
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Journal of neurotrauma · Sep 2019
Randomized Controlled Trial Multicenter StudyCost-effectiveness of Erythropoietin in Traumatic Brain Injury (EPO-TBI): A multinational trial based economic analysis.
The EPO-TBI multi-national randomized controlled trial found that erythropoietin (EPO), when compared to placebo, did not affect 6-month neurological outcome, but reduced illness severity-adjusted mortality in patients with traumatic brain injury (TBI), making the cost-effectiveness of EPO in TBI uncertain. The current study uses patient-level data from the EPO-TBI trial to evaluate the cost-effectiveness of EPO in patients with moderate or severe TBI from the healthcare payers' perspective. We addressed the issue of transferability in multi-national trials by estimating costs and effects for specific geographical regions of the study (Australia/New Zealand, Europe, and Saudi Arabia). ⋯ Mean unadjusted costs (95% CI) were $US5668 (-9191 to -2144; p = 0.002) lower in the treatment group; controlling for baseline IMPACT-TBI score and regional heterogeneity reduced this difference to $2377 (-12,446 to 7693; p = 0.64). For a willingness-to-pay threshold of $US50,000 per QALY, 71.8% of replications were considered cost-effective. Therefore, we did not find evidence that EPO was significantly cost-effective in the treatment of moderate or severe TBI at 6-month follow-up.
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Journal of neurotrauma · Sep 2019
The relationship of the FOUR score to patient outcome: a systematic review.
The Full Outline of UnResponsiveness (FOUR) score assessment of consciousness replaces the Glasgow Coma Scale (GCS) verbal component with assessment of brainstem reflexes. A comprehensive overview studying the relationship between a patient's FOUR score and outcome is lacking. We aim to systematically review published literature reporting the relationship of FOUR score to outcome in adult patients with impaired consciousness. ⋯ There was some evidence that motor and eye components (also GCS components) had better prognostic ability than brainstem components. Overall, FOUR score relates closely to in-hospital mortality and poor functional outcome. More studies with standardized design are needed to better characterize it in different patient groups, confirm the differences between its four components, and compare it with the performance of GCS and its recently described derivative, the GCS-Pupils, which includes pupil response as a fourth component.
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Journal of neurotrauma · Sep 2019
Frequency-Dependent Changes in Resting State EEG Functional Networks After Traumatic Brain Injury in Piglets.
Traumatic brain injury (TBI) is a major health concern in children, as it can cause chronic cognitive and behavioral deficits. The lack of objective involuntary metrics for the diagnosis of TBI makes prognosis more challenging, especially in the pediatric context, in which children are often unable to articulate their symptoms. Resting state electroencephalograms (EEG), which are inexpensive and non-invasive, and do not require subjects to perform cognitive tasks, have not yet been used to create functional brain networks in relation to TBI in children or non-human animals; here we report the first such study. ⋯ We hypothesize that mild TBI will induce persistent frequency-dependent changes in the 4-week-old piglet at acute and chronic time points. Hyperconnectivity was found in several frequency band networks after TBI. This study serves as proof of concept that the study of EEG functional networks in awake piglets may be useful for the development of diagnostic metrics for TBI in children.
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Journal of neurotrauma · Sep 2019
Divergent 6-Month Functional Recovery Trajectories and Predictors after Traumatic Brain Injury: Novel Insights from the COBRIT Study.
Cross-sectional approaches to outcome assessment may not adequately capture heterogeneity in recovery after traumatic brain injury (TBI). Using latent class mixed models (LCMM), a data-driven analytic that identifies groups of patients with similar trajectories, we identified distinct 6 month functional recovery trajectories in a large cohort (n = 1046) of adults 18-70 years of age with complicated mild to severe TBI who participated in the Citicoline Brain Injury Treatment Trial (COBRIT). We used multinomial logistic fixed effect models and backward elimination, forward selection, and forward stepwise selection with several stopping rules to explore baseline predictors of functional recovery trajectory. ⋯ GCS was the most consistently selected predictor across all models. All models also selected at least one demographic or pre-injury medical predictor. LCMM successfully identified dramatically divergent, clinically meaningful 6 month recovery trajectories with utility to inform clinical trial design.
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Journal of neurotrauma · Sep 2019
Multicenter StudyModelling the influence of age on neurologic outcome and quality of life one year after traumatic brain injury: a prospective multicenter cohort study.
After traumatic brain injury (TBI), the relationship between age and outcome at 1 year, including quality of life, has been poorly explored. The aim of our study was to describe this relationship in a cohort of TBI patients in a regional trauma system. Consecutive TBI patients with severe lesions on initial brain computed tomography (CT) scan were included from July 2014 to July 2016 in two French level-1 trauma centers. ⋯ No difference according to age was found for the quality of life. After TBI, the mortality at 1 year dramatically increased with age after 70 years. For elderly survivors, impairment of quality of life was not different from younger patients.