Articles: traumatic-brain-injuries.
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Observational Study
Incremental prognostic value of acute serum biomarkers for functional outcome after traumatic brain injury (CENTER-TBI): an observational cohort study.
Several studies have reported an association between serum biomarker values and functional outcome following traumatic brain injury. We aimed to examine the incremental (added) prognostic value of serum biomarkers over demographic, clinical, and radiological characteristics and over established prognostic models, such as IMPACT and CRASH, for prediction of functional outcome. ⋯ European Union's Seventh Framework Programme, Hannelore Kohl Stiftung, OneMind, Integra LifeSciences, and NeuroTrauma Sciences.
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Journal of neurotrauma · Sep 2022
American football position-specific neurometabolic changes in high school athletes - a magnetic resonance spectroscopic study.
Reports estimate between 1.6-3.8 million sports-related concussions occur annually, with 30% occurring in youth male American football athletes. Many studies report neurophysiological changes in these athletes, but the exact reasons for these changes remain elusive. Investigation of injury mechanics highlights a need to address how player position might impact these changes. ⋯ The majority of regression results involved DLPFC metabolites in linemen, where metabolite levels were higher from Pre to Post, with increasing HAE load. Comparisons with control athletes revealed higher metabolite levels in football athletes both before and after the season. This study highlights the importance of player position when conducting analyses on American football athletes and demonstrates elevated DLPFC and M1 brain metabolites in football athletes compared with control athletes at both Pre and Post, suggesting potential HAE-related neurocompensatory mechanisms.
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Intracranial pressure (ICP) monitoring is recommended for patients with traumatic brain injury (TBI) with a Glasgow Coma Scale (GCS) <9 on admission and revealing space-occupying lesions or swelling on computed tomography. However, previous studies that have evaluated its effect on outcome have shown conflicting results. ⋯ ICP monitoring in patients with severe TBI within 24 hours after injury following strict and extended criteria was associated with a decreased in-hospital mortality. The identification of patients with a higher risk of an unfavorable outcome might be useful to better select cases that would benefit more from ICP monitoring.
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Journal of neurotrauma · Sep 2022
Photosensitivity Is Associated with Chronic Pain following Traumatic Brain Injury.
Individuals with a history of traumatic brain injury (TBI) report increased rates of chronic pain. Photosensitivity is also a common chronic symptom following TBI and is prevalent among other types of chronic pain. The aim of this study was to better understand the relationship between chronic pain, pain-related disability, and photosensitivity in a TBI population. ⋯ Additionally, s-TBI participants were more sensitive to light (lower VPT, p < 0.001), and VPT was correlated with SIQR scores across all participants (R = -0.452, p < 0.001). These data demonstrate that photosensitivity is associated with self-reported chronic pain and disability in individuals with chronic TBI symptomatology. Photosensitivity could therefore serve as a simple, more highly quantitative marker of high-impact chronic pain after TBI.
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Journal of neurotrauma · Sep 2022
Interleukin-4 reduces lesion volume and improves neurological function in the acute phase after experimental traumatic brain injury in mice.
Little is known about the impact of interleukin-4 (IL-4) on secondary brain damage in the acute phase after experimental traumatic brain injury (TBI). Therefore, we evaluated the effect of IL-4-Knockout (IL-4-KO) on structural damage, as well as functional impairment, in the acute phase after experimental TBI in mice. A total of 28 C57Bl/6 wildtype and 20 C57BL/6-Il4tm1Nnt/J IL-4-KO mice were subjected to controlled cortical impact (CCI). ⋯ Gait impairment was significantly more pronounced in IL-4-KO mice throughout the first week after CCI (e.g., 0.07 ± 0.01 sec vs. 0.00 ± 0.01 sec, p = 0.047 for right hindpaw Swing on D1; -1.76 ± 1.34 U vs. 2.53 ± 0.90 U, p = 0.01 for right forepaw mean intensity on D3; -0.01 ± 0.01 cm2 vs. 0.05 ± 0.01 cm2, p = 0.015 for left forepaw mean area on D7). In conclusion, IL-4 reduces structural damage and improves functional outcome in the acute phase after CCI. Neurobehavioral outcome assessment in IL-4-related studies should focus on motor function on the first 3 days after trauma induction.