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https://www.readbyqxmd.com/read/28087556/ahead-study-an-observational-study-of-the-management-of-anticoagulated-patients-who-suffer-head-injury
#1
Suzanne Mason, Maxine Kuczawski, M Dawn Teare, Matt Stevenson, Steve Goodacre, Shammi Ramlakhan, Francis Morris, Joanne Rothwell
OBJECTIVES: Management of anticoagulated patients after head injury is unclear due to lack of robust evidence. This study aimed to determine the adverse outcome rate in these patients and identify risk factors associated with poor outcome. DESIGN: Multicentre, observational study using routine patient records. SETTING: 33 emergency departments in England and Scotland. PARTICIPANTS: 3566 adults (aged ≥16 years) who had suffered blunt head injury and were currently taking warfarin...
January 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28078839/widespread-membrane-potential-changes-and-cardiorespiratory-synchronization-involved-in-anxiety-and-sleep-wake-transitions
#2
R Jerath, S M Cearley, M Jensen
Located within the ascending reticular activating system are nuclei which release neurotransmitters such as acetylcholine, serotonin, dopamine, and norepinephrine. These nuclei have widespread projections that extend into the limbic system and throughout cortex. Activation of these neurotransmitters during awake states leads to arousal, while inhibition leads to the loss of consciousness experienced during slow-wave sleep. Previously, we proposed a mechanism in which cardiorespiratory synchronization may underlie the widespread hyperpolarization that occurs throughout the brain during slow-wave sleep...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28076834/risk-factors-for-posttraumatic-epilepsy-a-systematic-review-and-meta-analysis
#3
REVIEW
Tao Xu, Xinyuan Yu, Shu Ou, Xi Liu, Jinxian Yuan, Hao Huang, Juan Yang, Liang He, Yangmei Chen
OBJECTIVE: A systematic review and meta-analysis was performed to identify risk factors for posttraumatic epilepsy (PTE). METHODS: Two electronic databases (Medline and Embase) were searched to identify studies with a cohort, case-control, or cross-sectional design reporting on epidemiologic evidence regarding risk factors for PTE. RESULTS: Men had a higher risk of developing PTE than women [relative ratio (RR), 1.32; 95% confidence interval (CI), 1...
January 8, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28071741/loss-of-coupling-distinguishes-gjb1-mutations-associated-with-cns-manifestations-of-cmt1x-from-those-without-cns-manifestations
#4
Charles K Abrams, Mikhail Goman, Sarah Wong, Steven S Scherer, Kleopas A Kleopa, Alejandro Peinado, Mona M Freidin
CMT1X, an X-linked inherited neuropathy, is caused by mutations in GJB1, which codes for Cx32, a gap junction protein expressed by Schwann cells and oligodendrocytes. Many GJB1 mutations cause central nervous system (CNS) abnormality in males, including stable subclinical signs and, less often, short-duration episodes characterized by motor difficulties and altered consciousness. However, some mutations have no apparent CNS effects. What distinguishes mutations with and without CNS manifestations has been unclear...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28068964/management-of-screwdriver-induced-penetrating-brain-injury-a-case-report
#5
Jia Shi, Yumin Mao, Jiachao Cao, Bo Dong
BACKGROUND: Penetrating brain injury (PBI) can be caused by several objects ranging from knives to chopsticks. However, an assault with long and electric screwdriver is a peculiar accident and is relatively rare. Because of its rarity, the treatments of such injury are complex and nonstandardized. CASE PRESENTATION: We presented a case of a 54-year-old female who was stabbed with a screwdriver in her head and accompanied by loss of consciousness for 1 h. Computer tomography (CT) demonstrated that the screwdriver passed through the right zygomatic bone to posterior cranial fossa...
January 10, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28068405/head-injury-as-a-risk-factor-for-dementia-and-alzheimer-s-disease-a-systematic-review-and-meta-analysis-of-32-observational-studies
#6
Yanjun Li, Yongming Li, Xiaotao Li, Shuang Zhang, Jincheng Zhao, Xiaofeng Zhu, Guozhong Tian
BACKGROUND: Head injury is reported to be associated with increased risks of dementia and Alzheimer's disease (AD) in many but not all the epidemiological studies. We conducted a systematic review and meta-analysis to estimate the relative effect of head injury on dementia and AD risks. METHODS: Relevant cohort and case-control studies published between Jan 1, 1990, and Mar 31, 2015 were searched in PubMed, Web of Science, Scopus, and ScienceDirect. We used the random-effect model in this meta-analysis to take into account heterogeneity among studies...
2017: PloS One
https://www.readbyqxmd.com/read/28060210/obtaining-a-history-of-childhood-traumatic-brain-injury-using-the-ohio-state-university-tbi-identification-method-to-elicit-adult-recall
#7
Audrey McKinlay, John D Corrigan, Jennifer A Bogner, L John Horwood
OBJECTIVE: To investigate the concordance between medically documented childhood traumatic brain injury (TBI) and recall of same by adults aged 35 years. PARTICIPANTS: A total of 962 birth cohort members from the Christchurch Health and Development Study available at the 35-year follow-up. MAIN MEASURES: Childhood TBI information prospectively collected yearly over ages 0 to 15 years as part of the Christchurch Health and Development Study...
January 5, 2017: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/28059836/neurally-mediated-syncope-during-cesarean-delivery-a-case-report
#8
Seiko Sato, Erisa Nakamori, Go Kusumoto, Kenji Shigematsu, Ken Yamaura
A 28-year-old woman with preeclampsia at 32 weeks of gestation underwent a cesarean delivery under spinal anesthesia. Administration of nitroglycerin at 200 μg to relax uterine smooth muscles and the application of fundal pressure led to severe bradycardia and loss of consciousness, followed by cardiac arrest. Delivery was completed immediately and recovery was achieved 10 seconds later following cardiopulmonary resuscitation. Neurally mediated syncope was considered the cause of cardiac arrest. Anesthetists should be aware of the potential risk during cesarean delivery following the administration of nitroglycerin, fundal pressure, regional anesthesia, and hypovolemia because of preeclampsia...
January 4, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28059631/acute-necrotizing-encephalopathy-causing-human-bocavirus
#9
Ayse Betul Ergul, Umit Altug, Kursad Aydin, Ahmet Sami Guven, Yasemin Altuner Torun
Acute necrotizing encephalopathy is characterized by multiple, symmetrical lesions involving the thalamus, brainstem, cerebellum, and white matter and develops secondarily to viral infections. Influenza viruses are the most common etiological agents. Here, we present the first case of acute necrotizing encephalopathy to develop secondarily to human bocavirus. A 3-year-old girl presented with fever and altered mental status. She had had a fever, cough, and rhinorrhea for five days. The patient was admitted to the intensive care unit with an initial diagnosis of encephalitis when vomiting, convulsions, and loss of consciousness developed...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28045690/clinical-case-of-the-month-a-49-year-old-man-who-presents-with-left-sided-weakness-an-update-on-ischemic-stroke
#10
Najy Masri, Rikki Weems, Falon Brown, Ben Andres, Fred Lopez
A 49 year-old man with a past medical history significant for essential hypertension, hyperlipidemia, and coronary artery disease status post percutaneous coronary intervention and stent placement in the right coronary artery in 2010 presented for evaluation of left hemiplegia. He was feeling well until three hours prior to presentation, at which time he fell while walking from his bedroom into the kitchen. After falling, he noticed that his left upper and lower extremities felt weak. He denied any symptoms preceding the fall or any loss of consciousness...
November 2016: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28042366/posterior-reversible-encephalopathy-syndrome-local-experience-from-saudi-arabia
#11
Hussein Algahtani, Abdulhadi Algahtani, Ahmad Aldarmahi, Mohammed Hmoud, Yousef Marzuk, Bader Shirah
OBJECTIVES: Posterior reversible encephalopathy syndrome (PRES) is a clinicoradiological syndrome characterized by headache, altered mental status, seizures, or loss of vision. In this study, we report the largest series of PRES coming from Saudi Arabia and explore the etiology, clinical presentation, and outcome. We also report new imaging findings associated with this condition. METHODS: We performed a retrospective study of all cases of PRES admitted to King Abdulaziz Medical City, Jeddah, Saudi Arabia, between the years 2005 and 2015...
January 2017: Neurohospitalist
https://www.readbyqxmd.com/read/28040235/-the-effect-of-palonosetron-on-rocuronium-induced-withdrawal-movement
#12
Ki-Bum Park, Younghoon Jeon, Junggu Yi, Ji-Hyun Kim, Seung-Yeon Chung, Kyung-Hwa Kwak
BACKGROUND: Rocuronium causes pain and withdrawal movement during induction of anesthesia. In this study, palonosetron was investigated to have analgesic effect on the reduction of rocuronium-induced withdrawal movement. METHODS: 120 patients were randomly assigned to one of three groups to receive either saline, lidocaine 20mg, or palonosetron 0.075mg with a tourniquet applied two minutes before thiopental sodium (5mg·kg(-1)) was given intravenously. After loss of consciousness, rocuronium (0...
December 29, 2016: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28033700/brucellosis-with-multi-organ-involvement-in-a-patient-with-history-of-composite-aortic-graft-and-hepatitis-b
#13
Seyed Ali Dehghan Manshadi, Omid Rezahosseini, Zahra Abdi Liaei
The brucellosis with multi-organ involvement in a patient with a history of the composite aortic graft (Bentall procedure) and Hepatitis B infection is rare. A 35-year-old man presented to us with fever and loss of consciousness. Four years ago, he was IDU and underwent cardiac surgery because of endocarditis. Recently lumbar spondylodiscitis was diagnosed. The Wright (1/320) and Coombs Wright tests (1/640) were positive. After CNS imaging, lumbar puncture was done. The CSF pleocytosis was lymphocyte dominant...
November 2016: Acta Medica Iranica
https://www.readbyqxmd.com/read/28032633/estrogen-receptors-%C3%AE-and-%C3%AE-play-major-roles-in-ethanol-evoked-myocardial-oxidative-stress-and-dysfunction-in-conscious-ovariectomized-rats
#14
Fanrong Yao, Abdel A Abdel-Rahman
BACKGROUND: We documented the dependence of ethanol (EtOH)-evoked myocardial dysfunction on estrogen (E2 ), and our recent estrogen receptor (ER) blockade study, in proestrus rats, implicated ERα signaling in this phenomenon. However, a limitation of selective pharmacological loss-of-function approach is the potential contribution of the other 2 ERs to the observed effects because crosstalk exists between the 3 ERs. Here, we adopted a "regain"-of-function approach (using selective ER subtype agonists) to identify the ER subtype(s) required for unraveling the E2 -dependent myocardial oxidative stress/dysfunction caused by EtOH in conscious ovariectomized (OVX) rats...
December 29, 2016: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28032004/orbitofrontal-cortical-thinning-and-aggression-in-mild-traumatic-brain-injury-patients
#15
Daniel J Epstein, Margaret Legarreta, Elliot Bueler, Jace King, Erin McGlade, Deborah Yurgelun-Todd
INTRODUCTION: Although mild traumatic brain injury (mTBI) comprises 80% of all TBI, the morphological examination of the orbitofrontal cortex (OFC) in relation to clinical symptoms such as aggression, anxiety and depression in a strictly mTBI sample has never before been performed. OBJECTIVES: The primary objective of the study was to determine if mTBI patients would show morphological differences in the OFC and if the morphology of this region would relate to clinical symptoms...
December 2016: Brain and Behavior
https://www.readbyqxmd.com/read/28006664/the-high-burden-of-traumatic-brain-injury-and-comorbidities-amongst-homeless-adults-with-mental-illness
#16
Jane Topolovec-Vranic, Andree Schuler, Agnes Gozdzik, Julian Somers, Paul-Émile Bourque, C James Frankish, Jalila Jbilou, Sarah Pakzad, Luis Ivan Palma Lazgare, Stephen W Hwang
OBJECTIVE: characterize the prevalence of self-reported head injury with loss of consciousness (LOC) and associated demographic, clinical and service use factors in a sample of homeless adults with mental illness. METHOD: Participants in the At Home/Chez Soi study were interviewed at the time of study enrollment regarding their history of head injuries, mental and physical health diagnoses and justice system and healthcare interactions. Sociodemographic and clinical data were also collected...
December 3, 2016: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/27998635/predictors-of-intrathoracic-injury-after-blunt-torso-trauma-in-children-presenting-to-an-emergency-department-as-trauma-activations
#17
Caitlin McNamara, Irina Mironova, Erik Lehman, Robert P Olympia
BACKGROUND: Thoracic injuries are a major cause of death associated with blunt trauma in children. Screening for injury with chest x-ray study, compared with chest computed tomography (CT) scan, has been controversial, weighing the benefits of specificity with the detriment of radiation exposure. OBJECTIVE: To identify predictors of thoracic injury in children presenting as trauma activations to a Level I trauma center after blunt torso trauma, and to compare these predictors with those previously reported in the literature...
December 17, 2016: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27993673/propofol-attenuates-low-frequency-fluctuations-of-resting-state-fmri-bold-signal-in-the-anterior-frontal-cortex-upon-loss-of-consciousness
#18
Xiaolin Liu, Kathryn K Lauer, B Douglas Ward, Christopher Roberts, Suyan Liu, Suneeta Gollapudy, Robert Rohloff, William Gross, Guangyu Chen, Zhan Xu, Jeffrey R Binder, Shi-Jiang Li, Anthony G Hudetz
Recent studies indicate that spontaneous low-frequency fluctuations (LFFs) of resting-state functional magnetic resonance imaging (rs-fMRI) blood oxygen level-dependent (BOLD) signals are driven by the slow (<0.1Hz) modulation of ongoing neuronal activity synchronized locally and across remote brain regions. How regional LFFs of the BOLD fMRI signal are altered during anesthetic-induced alteration of consciousness is not well understood. Using rs-fMRI in 15 healthy participants, we show that during administration of propofol to achieve loss of behavioral responsiveness indexing unconsciousness, the fractional amplitude of LFF (fALFF index) was reduced in comparison to wakeful baseline in the anterior frontal regions, temporal pole, hippocampus, parahippocampal gyrus, and amygdala...
December 16, 2016: NeuroImage
https://www.readbyqxmd.com/read/27993561/loss-of-smooth-muscle-cell-disintegrin-and-metalloproteinase-17-transiently-suppresses-angiotensin-ii-induced-hypertension-and-end-organ-damage
#19
Mengcheng Shen, Jude Morton, Sandra T Davidge, Zamaneh Kassiri
Hypertension is associated with hypertrophy and hyperplasia of smooth muscle cells (SMCs). Disintegrin and metalloproteinase 17 (ADAM17) is a membrane-bound enzyme reported to mediate SMC hypertrophy through activation of epidermal growth factor receptor (EGFR). We investigated the role of ADAM17 in Ang II-induced hypertension and end-organ damage. VSMC was isolated from mice with intact ADAM17 expression (Adam17(f/f)) or lacking ADAM17 in the SMC (Adam17(f/f)/Cre(Sm22)). Human VSMCs were isolated from the aorta of donors, and ADAM17 deletion was achieved by siRNA transfection...
December 16, 2016: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/27990559/prevention-of-hypoglycemia-induced-hippocampal-neuronal-death-by-n-acetyl-l-cysteine-nac
#20
A Ra Kho, Bo Young Choi, Jin Hee Kim, Song Hee Lee, Dae Ki Hong, Sang Hwon Lee, Jeong Hyun Jeong, Min Sohn, Sang Won Suh
Type 1 and type 2 diabetic patients who are treated with insulin or other blood glucose reducing agents for tight control of blood glucose levels are frequently at risk of experiencing severe hypoglycemia which can lead to seizures, loss of consciousness and death. Hypoglycemic neuronal cell death is not a simple result of low glucose supply to the brain, but, instead, results from a cell death signaling pathway that is started by the re-administration of glucose after glucose deprivation. Zinc is a biologically important element for physiological function of central nervous system...
December 19, 2016: Amino Acids
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