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Severe traumatic brain injury

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https://www.readbyqxmd.com/read/28342966/time-courses-of-post-injury-mitochondrial-oxidative-damage-and-respiratory-dysfunction-and-neuronal-cytoskeletal-degradation-in-a-rat-model-of-focal-traumatic-brain-injury
#1
Rachel L Hill, Indrapal N Singh, Juan A Wang, Edward D Hall
Traumatic brain injury (TBI) results in rapid reactive oxygen species (ROS) production and oxidative damage to essential brain cellular components leading to neuronal dysfunction and cell death. It is increasingly appreciated that a major player in TBI-induced oxidative damage is the reactive nitrogen species (RNS) peroxynitrite (PN) which is produced in large part in injured brain mitochondria. Once formed, PN decomposes into highly reactive free radicals that trigger membrane lipid peroxidation (LP) of polyunsaturated fatty acids (e...
March 23, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28340321/exploring-the-relationship-between-cognition-and-functional-verbal-reasoning-in-adults-with-severe-traumatic-brain-injury-at-six-months-post-injury
#2
Petra Avramović, Belinda Kenny, Emma Power, Skye McDonald, Robyn Tate, Louise Hunt, Sheila MacDonald, Rob Heard, Leanne Togher
OBJECTIVE(S): This study aims to determine the association between cognitive impairment and functional verbal reasoning in adults with severe traumatic brain injury (TBI), at six months post-injury. METHOD(S): 38 participants with severe TBI were assessed using the four tasks on the Functional Assessment of Verbal Reasoning and Executive Strategies (FAVRES) [1] and a battery of neuropsychological tests at 6 months post injury in a cross-sectional observational study...
March 24, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28340308/a-preliminary-investigation-on-the-effect-of-extracorporeal-shock-wave-therapy-as-a-treatment-for-neurogenic-heterotopic-ossification-following-traumatic-brain-injury-part-i-effects-on-pain
#3
J E Reznik, E Biros, A C Lamont, Y Sacher, O Kibrik, S Milanese, S Gordon, M P Galea
INTRODUCTION: Neurogenic heterotopic ossification (NHO) is a complication of a neurological injury following traumatic brain injury (TBI) and may be present around major synovial joints. It is often accompanied by severe pain, which may lead to limitation in activities of daily living. Currently, a common intervention for NHO is surgery, which has been reported to carry many additional risks. This study was designed to assess the effect of extracorporeal shock wave therapy (ESWT) on pain in patients with TBI with chronic NHO...
March 24, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28338593/clinical-correlates-to-assist-with-cte-diagnosis-insights-from-a-novel-rodent-repeat-concussion-model
#4
Gretchen M Thomsen, Ara Ko, Megan Y Harada, Annie Ma, Livia Wyss, Patricia Haro, Jean-Philippe Vit, Pablo Avalos, Navpreet Dhillon, Noell Cho, Oksana Shelest, Eric J Ley
INTRODUCTION: Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease linked to repetitive head injuries. CTE symptoms include changes in mood, behavior, cognition and motor function, however CTE is only currently diagnosed post-mortem. Using a rat model of recurrent traumatic brain injury (TBI) we demonstrate rodent deficits that predict the severity of CTE-like brain pathology. METHODS: Bilateral, closed skull, mild TBI was administered once per week to 35 WT rats, 8 rats received 2 injuries ('2xTBI'), 27 rats received 5 injuries ('5xTBI') and 13 rats were sham controls...
March 23, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28338437/contralateral-peripheral-neurotization-for-a-hemiplegic-hindlimb-after-central-neurological-injury
#5
Mou-Xiong Zheng, Xu-Yun Hua, Su Jiang, Yan-Qun Qiu, Yun-Dong Shen, Wen-Dong Xu
OBJECTIVE Contralateral peripheral neurotization surgery has been successfully applied to rescue motor function of the hemiplegic upper extremity in patients with central neurological injury (CNI). It may contribute to strengthened neural pathways between the contralesional cortex and paretic limbs. However, the effect of this surgery in the lower extremities remains unknown. In the present study the authors explored the effectiveness and safety of contralateral peripheral neurotization in treating a hemiplegic lower extremity following CNI in adult rats...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28337122/cerebrospinal-fluid-cortisol-mediates-brain-derived-neurotrophic-factor-relationships-to-mortality-after-severe-tbi-a-prospective-cohort-study
#6
Miranda J Munoz, Raj G Kumar, Byung-Mo Oh, Yvette P Conley, Zhensheng Wang, Michelle D Failla, Amy K Wagner
Distinct regulatory signaling mechanisms exist between cortisol and brain derived neurotrophic factor (BDNF) that may influence secondary injury cascades associated with traumatic brain injury (TBI) and predict outcome. We investigated concurrent CSF BDNF and cortisol relationships in 117 patients sampled days 0-6 after severe TBI while accounting for BDNF genetics and age. We also determined associations between CSF BDNF and cortisol with 6-month mortality. BDNF variants, rs6265 and rs7124442, were used to create a gene risk score (GRS) in reference to previously published hypothesized risk for mortality in "younger patients" (<48 years) and hypothesized BDNF production/secretion capacity with these variants...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28336445/mortality-associated-characteristics-of-traumatic-brain-injury-patients-at-the-university-teaching-hospital-of-kigali-rwanda
#7
Elizabeth Krebs, Charles J Gerardo, Lawrence P Park, Joao Ricardo Nickenig Vissoci, Jean Claude Byiringiro, Fidele Byiringiro, Stephen Rulisa, Nathan Thielman, Catherine Staton
OBJECTIVE: Traumatic Brain Injury (TBI) is a leading cause of death and disability. TBI patients in low and middle- income countries have worse outcomes than those in high-income countries. We aimed to evaluate important clinical indicators associated with mortality for TBI patients at the University Teaching Hospital of Kigali (UTHK) Kigali, Rwanda. METHODS: Prospective consecutive sampling of TBI patients presenting to UTHK Accident and Emergency Department were screened for inclusion criteria: reported head trauma, alteration in consciousness, headache, or visible head trauma...
March 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28336376/effect-of-anesthetics-on-microglial-activation-and-nanoparticle-uptake-implications-for-drug-delivery-in-traumatic-brain-injury
#8
Gokul Kannan, Siva P Kambhampati, Sapna R Kudchadkar
Traumatic brain injury (TBI) is a serious public health problem, often with devastating consequences for patients and their families. Affordable and timely therapies can have a substantial impact on outcomes in severe TBI. Despite the common use of sedatives and anesthetics in the acute phase of TBI management, their effect on glial cells is not well understood. We investigated the effect of a commonly used sedative, pentobarbital, on glial cells and their uptake of nanoparticles. First, we studied how pentobarbital affects BV2 mouse microglial cells in culture...
March 20, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28335673/modifiable-risk-factors-for-delirium-in-critically-ill-trauma-patients
#9
Marc-Alexandre Duceppe, David R Williamson, Audrée Elliott, Mélissa Para, Marie-Christine Poirier, Marie-Soleil Delisle, Dan Deckelbaum, Tarek Razek, Monique Desjardins, Jean-Claude Bertrand, Francis Bernard, Philippe Rico, Lisa Burry, Anne Julie Frenette, Marc Perreault
OBJECTIVE: Intensive care unit (ICU)-acquired delirium has been associated with increased morbidity and mortality. Prevention strategies including modification of delirium risk factors are emphasized by practice guidelines. No study has specifically evaluated modifiable delirium risk factors in trauma ICU patients. Our goal was to evaluate modifiable risk factors for delirium among trauma patients admitted to the ICU. DESIGN: Prospective observational study. SETTING: Two level 1 trauma ICU centers...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28335668/directions-for-use-of-intracranial-pressure-monitoring-in-treatment-of-severe-traumatic-brain-injury-using-data-from-the-japan-neurotrauma-data-bank
#10
Eiichi Suehiro, Yuichi Fujiyama, Hiroyasu Koizumi, Michiyasu Suzuki
Neuromonitoring can be used to observe intracranial pathological conditions in neurointensive care, but use of intracranial pressure (ICP) monitoring is low in Japan. In this study, we retrospectively investigated the effects of ICP monitoring in treatment of severe traumatic brain injury (TBI) using data from the Japan Neurotrauma Data Bank (JNTDB). The study was conducted in 1,091 subjects enrolled in the JNTDB (Project 2009) from July 2009 to June 2011. The subjects were divided into those treated with and without ICP monitoring in intensive care for severe TBI...
March 23, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28331321/monitoring-brain-multiparameters-and-hypothermia-in-severe-traumatic-brain-injury
#11
COMMENT
Fernando Roberto de Vasconcelos, Almir Ferreira de Andrade, Manoel Jacobsen Teixeira, Wellingson Silva Paiva
No abstract text is available yet for this article.
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28330412/early-asymmetric-cardio-cerebral-causality-and-outcome-after-severe-traumatic-brain-injury
#12
Lei Gao, Peter Smieleweski, Marek Czosnyka, Ari Ercole
The brain and heart are two vital systems in health and disease, increasingly recognised as a complex, interdependent network with constant information flow in both directions. After severe traumatic brain injury (TBI), the causal, directed interactions between the brain, heart and autonomic nervous system have not been well established. Novel methods are needed to probe unmeasured, potentially prognostic information in complex biological networks that are not revealed via traditional means. In this study, we examined potential bi-directional causality between intracranial pressure (ICP), mean arterial pressure (MAP) and heart rate (HR) and its relationship to mortality in a 24-hour period early after TBI...
March 23, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28329183/remote-traumatic-brain-injury-is-associated-with-motor-dysfunction-in-older-military-veterans
#13
Raquel C Gardner, Carrie B Peltz, Kimbra Kenney, Kenneth E Covinsky, Ramon Diaz-Arrastia, Kristine Yaffe
Background: Traumatic brain injury (TBI) has been identified as a risk factor for Parkinson's disease (PD). Motor dysfunction among TBI-exposed elders without PD has not been well characterized. We sought to determine whether remote TBI is a risk factor for motor dysfunction on exam and functionally relevant motor dysfunction in day-to-day life among independently living elders without PD. Methods: This is a cross-sectional cohort study of independently living retired military veterans aged 50 or older with (n = 78) and without (n = 85) prior TBI-all without diagnosed PD...
January 20, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28326199/predictors-of-recovery-from-traumatic-brain-injury-induced-prolonged-consciousness-disorder
#14
Hiroaki Abe, Keigo Shimoji, Yoshihide Nagamine, Satoru Fujiwara, Shin-Ichi Izumi
We investigated the clinical predictors of the degree of recovery in patients with prolonged disorders of consciousness (PDC) caused by traumatic brain injury. Fourteen patients with PDC underwent two diffusion tensor imaging (DTI) studies; the first and second scans were performed at 345.6 ± 192.6 and 689.1 ± 272.2 days after the injury, respectively. In addition to the temporal changes in each of these diffusion parameters, fractional anisotropy (FA), mean diffusivity, axial diffusivity (AD), and radial diffusivity were assessed over a 1-year period...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28325461/neurocritical-care-of-acute-subdural-hemorrhage
#15
REVIEW
Fawaz Al-Mufti, Stephan A Mayer
Although urgent surgical hematoma evacuation is necessary for most patients with subdural hematoma (SDH), well-orchestrated, evidenced-based, multidisciplinary, postoperative critical care is essential to achieve the best possible outcome. Acute SDH complicates approximately 11% of mild to moderate traumatic brain injuries (TBIs) that require hospitalization, and approximately 20% of severe TBIs. Acute SDH usually is related to a clear traumatic event, but in some cases can occur spontaneously. Management of SDH in the setting of TBI typically conforms to the Advanced Trauma Life Support protocol with airway taking priority, and management breathing and circulation occurring in parallel rather than sequence...
April 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/28324201/potential-roles-of-mitochondria-associated-er-membranes-mams-in-traumatic-brain-injury
#16
REVIEW
Dongdong Sun, Xin Chen, Gang Gu, Jianhao Wang, Jianning Zhang
The endoplasmic reticulum (ER) and mitochondria have both been shown to be critical in cellular homeostasis. The functions of the ER and mitochondria are independent but interrelated. These two organelles could form physical interactions, known as MAMs, to regulate physiological functions between ER and mitochondria to maintain Ca(2+), lipid, and metabolite exchange. Several proteins are located in MAMs, including RNA-dependent protein kinase (PKR)-like ER kinase, inositol 1,4,5-trisphosphate receptors, phosphofurin acidic cluster sorting protein-2 and sigma-1 receptor to ensure regulation...
March 21, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28323524/comparison-of-two-predictive-models-for-short-term-mortality-in-patients-after-severe-traumatic-brain-injury
#17
Klara Julia Kesmarky, Cécile Delhumeau, Marie Zenobi, Bernhard Walder
The Glasgow Coma Scale (GCS) and the abbreviated injury score of the head region (HAIS) are validated prognostic factors in traumatic brain injury (TBI). The aim of this study was to compare the prognostic performance of an alternative predictive model including motor GCS, pupillary reactivity, age, HAIS, and presence of multi-trauma for short term mortality with a reference predictive model including motor GCS, pupil reaction and age (IMPACT core model). A secondary analysis of a prospective epidemiological cohort study in Switzerland including patients after severe TBI (HAIS >3) with the outcome death at 14 days was performed...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28323180/early-and-severe-symptomatic-cerebral-vasospasm-after-mild-traumatic-brain-injury-case-report
#18
Kyle Ogami, Melissa Dofredo, Asma M Moheet, Shouri Lahiri
BACKGROUND: Symptomatic cerebral vasospasm has been reported in a low percentage of patients with moderate or severe traumatic brain injury as defined by Glasgow Coma Score (GCS). Here, we present case of mild traumatic brain injury (GCS 14) complicated by early and severe symptomatic cerebral vasospasm. CASE DESCRIPTION: A 63-year-old female was admitted following mild traumatic brain injury with a Glasgow Coma Score of 14. Concurrent with the onset of sonographic vasospasm, the patient developed severe neurological symptoms consistent with ischemia of the left middle cerebral artery territory...
March 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28321191/palmitoylethanolamide-reduces-neuropsychiatric-behaviors-by-restoring-cortical-electrophysiological-activity-in-a-mouse-model-of-mild-traumatic-brain-injury
#19
Francesca Guida, Serena Boccella, Monica Iannotta, Danilo De Gregorio, Catia Giordano, Carmela Belardo, Rosaria Romano, Enza Palazzo, Maria A Scafuro, Nicola Serra, Vito de Novellis, Francesco Rossi, Sabatino Maione, Livio Luongo
Traumatic brain injury (TBI) represents a major public health problem, which is associated with neurological dysfunction. In severe or moderate cases of TBI, in addition to its high mortality rate, subjects may encounter diverse behavioral dysfunctions. Previous reports suggest that an association between TBI and chronic pain syndromes tends to be more common in patients with mild forms of brain injury. Despite causing minimal brain damage, mild TBI (mTBI) often leads to persistent psychologically debilitating symptoms, which can include anxiety, various forms of memory and learning deficits, and depression...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28320134/post-hemorrhagic-hydrocephalus-recent-advances-and-new-therapeutic-insights
#20
REVIEW
Qianwei Chen, Zhou Feng, Qiang Tan, Jing Guo, Jun Tang, Liang Tan, Hua Feng, Zhi Chen
Post-hemorrhagic hydrocephalus (PHH), also referred to as progressive ventricular dilatation, is caused by disturbances in cerebrospinal fluid (CSF) flow or absorption following hemorrhage in the brain. As one of the most serious complications of neonatal/adult intraventricular hemorrhage (IVH), subarachnoid hemorrhage (SAH), and traumatic brain injury (TBI), PHH is associated with increased morbidity and disability of these events. Common sequelae of PHH include neurocognitive impairment, motor dysfunction, and growth impairment...
April 15, 2017: Journal of the Neurological Sciences
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