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Brain injury sedation

Michael J Murray, Heidi DeBlock, Brian Erstad, Anthony Gray, Judi Jacobi, Che Jordan, William McGee, Claire McManus, Maureen Meade, Sean Nix, Andrew Patterson, M Karen Sands, Richard Pino, Ann Tescher, Richard Arbour, Bram Rochwerg, Catherine Friederich Murray, Sangeeta Mehta
OBJECTIVE: To update the 2002 version of "Clinical practice guidelines for sustained neuromuscular blockade in the adult critically ill patient." DESIGN: A Task Force comprising 17 members of the Society of Critical Medicine with particular expertise in the use of neuromuscular-blocking agents; a Grading of Recommendations Assessment, Development, and Evaluation expert; and a medical writer met via teleconference and three face-to-face meetings and communicated via e-mail to examine the evidence and develop these practice guidelines...
November 2016: Critical Care Medicine
Fulton T Crews, Ryan P Vetreno, Margaret A Broadwater, Donita L Robinson
Adolescence is a developmental period when physical and cognitive abilities are optimized, when social skills are consolidated, and when sexuality, adolescent behaviors, and frontal cortical functions mature to adult levels. Adolescents also have unique responses to alcohol compared with adults, being less sensitive to ethanol sedative-motor responses that most likely contribute to binge drinking and blackouts. Population studies find that an early age of drinking onset correlates with increased lifetime risks for the development of alcohol dependence, violence, and injuries...
October 2016: Pharmacological Reviews
Mariem Rekik, Emna Bahlouli, Bessem Krifa, Sonia Lebib, Imen Miri, Fatima Zahra Ben Salah, Catherine Dziri
OBJECTIVE: The aim of our study was to assess the functional outcome of brain injury (BI) victims and to review the impact of treatment time on functional abilities. MATERIAL/PATIENTS AND METHODS: We conducted a cross-sectional study including patients referred to physical and rehabilitation medicine department at the Med Kassab Institute of Orthopedics. The initial gravity data were collected. The functional outcome was assessed by the Glasgow Outcome Scale (GOS) French version, the get up and go test, the walk test on 10m, the functional independence measure (FIM) and daily life activities...
September 2016: Annals of Physical and Rehabilitation Medicine
Tobias Haltmeier, Elizabeth Benjamin, Stefano Siboni, Evren Dilektasli, Kenji Inaba, Demetrios Demetriades
PURPOSE: Prehospital endotracheal intubation (ETI) for traumatic brain injury (TBI) is a controversial issue. The aim of this study was to investigate the effect of prehospital ETI in patients with TBI. METHODS: Cohort-matched study using the US National Trauma Data Bank (NTDB) 2008-2012. Patients with isolated severe blunt TBI (AIS head ≥3, AIS chest/abdomen <3) and a field GCS ≤8 were extracted from NTDB. A 1:1 matching of patients with and without prehospital ETI was performed...
August 27, 2016: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
Edilberto Amorim, Jon C Rittenberger, Julia J Zheng, M Brandon Westover, Maria E Baldwin, Clifton W Callaway, Alexandra Popescu
OBJECTIVE: Hypoxic brain injury is the largest contributor to disability and mortality after cardiac arrest. We aim to identify electroencephalogram (EEG) characteristics that can predict outcome on cardiac arrest patients treated with targeted temperature management (TTM). METHODS: We retrospectively examined clinical, EEG, functional outcome at discharge, and in-hospital mortality for 373 adult subjects with return of spontaneous circulation after cardiac arrest...
August 20, 2016: Resuscitation
G V Oosthuizen, J L Bruce, W Bekker, N Shangase, G L Laing, D L Clarke
BACKGROUND: Pan computed tomography (CT) is widely used in the evaluation of patients with blunt polytrauma, but there is growing concern about the radiation risks imposed. OBJECTIVE: To ascertain whether we were possibly overutilising pan CT in our trauma service, and whether we could safely cut down on scans without missing significant injuries. METHODS: We audited all pan scans performed in the Metropolitan Trauma Service, Pietermaritzburg, South Africa, during the 12-month period 1 January - 31 December 2012...
August 2016: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
Arash Abdolmaleki, Ali Moghimi, Mohammad B Ghayour, Morteza B Rassouli
Citicoline (cytidine-5'-diphosphocholine) is a neuroprotective agent that is administered following ischemic and traumatic brain injuries. There is little information about the antiseizure and anxiolytic effects of citicoline, which are therefore addressed in the present study. For evaluating the anticonvulsant effect of citicoline in the pentylentetrazole seizure model, a single intraperitoneal dose of citicoline was administered at 50, 100 or 150mg/kg. Sedative and anxiolytic effects of citicoline were examined via elevated plus maze and pentobarbital induced sleep tests...
October 15, 2016: European Journal of Pharmacology
Jan Claassen, Angela Velazquez, Emma Meyers, Jens Witsch, M Cristina Falo, Soojin Park, Sachin Agarwal, J Michael Schmidt, Nicholas D Schiff, Jacobo D Sitt, Lionel Naccache, E Sander Connolly, Hans-Peter Frey
OBJECTIVE: Accurate behavioral assessments of consciousness carry tremendous significance in guiding management, but are extremely challenging in acutely brain-injured patients. We evaluated whether electroencephalography (EEG) and multimodality monitoring parameters may facilitate assessment of consciousness in patients with subarachnoid hemorrhage. METHODS: A retrospective analysis was performed of 83 consecutively treated adults with subarachnoid hemorrhage. All patients were initially comatose and had invasive brain monitoring placed...
October 2016: Annals of Neurology
Stephen S Humble, Laura D Wilson, Taylor C Leath, Matthew D Marshall, Daniel Z Sun, Pratik P Pandharipande, Mayur B Patel
OBJECTIVE: To comprehensively describe the use of dexmedetomidine in a single institutional series of adult ICU patients with severe TBI. This study describes the dexmedetomidine dosage and infusion times, as well as the physiological parameters, neurological status and daily narcotic requirements before, during and after dexmedetomidine infusion. METHODS: This study identified 85 adult patients with severe TBI who received dexmedetomidine infusions in the Trauma ICU at Vanderbilt University Medical Center between 2006-2010...
2016: Brain Injury: [BI]
Fenella Jane Kirkham
Pediatric neurology relies on ultrasound, computed tomography (CT), and magnetic resonance (MR) imaging. CT prevails in acute neurologic presentations, including traumatic brain injury (TBI), nontraumatic coma, stroke, and status epilepticus, because of easy availability, with images of diagnostic quality, e.g., to exclude hemorrhage, usually completed quickly enough to avoid sedation. Concerns over the risks of ionizing radiation mean re-imaging and higher-dose procedures, e.g., arteriography and venography, require justification...
2016: Handbook of Clinical Neurology
Brianne M Ritchie, Heather Torbic, Jeremy R DeGrado, David P Reardon
BACKGROUND: Variability in sedation may increase the incidence of delirium and mortality, as well as increased intensive care unit (ICU) and hospital lengths of stay (LOS), despite mean Richmond Agitation Sedation Scale (RASS) scores at goal. Coefficient of variation (CV) can be used to represent variability with a higher ratio indicating increased variability. STUDY QUESTION: Do patients with an increased variability in sedation, as evaluated by CV in RASS, have an increased incidence of delirium? METHODS: We conducted a retrospective chart review of adult medical ICU patients requiring mechanical ventilation (MV) for ≥24 hours between January and April 2013...
June 23, 2016: American Journal of Therapeutics
Kenneth D Katz, Adam L Leonetti, Blake C Bailey, Ryan M Surmaitis, Eric R Eustice, Sherri Kacinko, Scott M Wheatley
Synthetic cannabinoid use has risen at alarming rates. This case series describes 11 patients exposed to the synthetic cannabinoid, MAB-CHMINACA who presented to an emergency department with life-threatening toxicity including obtundation, severe agitation, seizures and death. All patients required sedatives for agitation, nine required endotracheal intubation, three experienced seizures, and one developed hyperthermia. One developed anoxic brain injury, rhabdomyolysis and died. A significant number were pediatric patients...
May 2016: Western Journal of Emergency Medicine
D Y Mah, H J Yia, W S Cheong
Dialysis disequilibrium syndrome (DDS) is a neurological disorder with varying severity that is postulated to be associated with cerebral oedema. We described a case of DDS resulting in irreversible brain injury and death following acute haemodialysis. A 13-year-old male with no past medical history and weighing 30kg, presented to hospital with severe urosepsis complicated by acute kidney injury (Creatinine 1422mmol/L; Urea 74.2mmol/L, Potassium 6.3mmol/L, Sodium 137mmol/L) and severe metabolic acidosis (pH 6...
April 2016: Medical Journal of Malaysia
Daniel N Hertle, Marina Heer, Edgar Santos, Michael Schöll, Christina M Kowoll, Christian Dohmen, Jennifer Diedler, Roland Veltkamp, Rudolf Graf, Andreas W Unterberg, Oliver W Sakowitz
OBJECTIVE: Spreading depolarization (SD) occurs after traumatic brain injury, subarachnoid hemorrhage, malignant hemispheric stroke and intracranial hemorrhage. SD has been associated with secondary brain injury, which can be reduced by ketamine. In this present study frequency bands of electrocorticographic (ECoG) recordings were investigated with regards to SDs. METHODS: A total of 43 patients after acute brain injury were included in this retrospective and explorative study...
July 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Despina A Lalou, Marek Czosnyka, Joseph Donnelly, Andrea Lavinio, John D Pickard, Matthew Garnett, Zofia Czosnyka
OBJECTIVE: Slow vasogenic intracranial pressure (ICP) waves are spontaneous ICP oscillations with a low frequency bandwidth of 0.3-4 cycles/min (B-waves). B-waves reflect dynamic oscillations in cerebral blood volume associated with autoregulatory cerebral vasodilation and vasoconstriction. This study quantifies the effects of general anaesthesia (GA) on the magnitude of B-waves compared to natural sleep and conscious state. MATERIALS AND METHODS: The magnitude of B-waves was assessed in 4 groups of 30 patients each with clinical indications for ICP monitoring...
July 2016: Neurological Research
Terrence McDonald, Hongyu A Liang, Raul Sanoja, Anthony L Gotter, Scott D Kuduk, Paul J Coleman, Karen M Smith, Christopher J Winrow, John J Renger
Orexin signaling, known to modulate arousal and vigilance, is also involved in nociception as orexin neurons project to regions of the brain and spinal cord involved in pain processing, and the administration of orexin peptides can alter pain response in a wide range of preclinical models. Pharmacological treatment with the potent, selective and structurally distinct dual orexin receptor antagonists (ORAs) DORA-12 and DORA-2 significantly reduced pain responses during both phases I and II of the mouse formalin pain model and significantly reversed hyperalgesia in the rat complete Freund's adjuvant pain model, respectively...
March 2016: Journal of Neurogenetics
Xiu Wang, Yao Wang, Chao Zhang, Chang Liu, Baotian Zhao, Naili Wei, Jian-Guo Zhang, Kai Zhang
Both endocannabinoids and dynorphin are feedback messengers in nervous system that act at the presynaptic nerve terminal to inhibit transmitter release. Many studies showed the cannabinoid-opioid cross-modulation in antinociception, hypothermia, sedation and reward. The aim of this study was to assess the influence of early application of cannabinoid type 1 (CB1) receptor antagonism SR141716A after brain injury on dynorphin-κ opioid receptor (KOR) system and the expression of metabotropic glutamate receptors (mGluRs) in a rat model of fluid percussion injury (FPI)...
September 1, 2016: Brain Research
Konstantinos I Papadimitriou, Chu Wang, Michelle L Rogers, Sally A N Gowers, Chi L Leong, Martyn G Boutelle, Emmanuel M Drakakis
Traumatic brain injury (TBI) has been identified as an important cause of death and severe disability in all age groups and particularly in children and young adults. Central to TBIs devastation is a delayed secondary injury that occurs in 30-40% of TBI patients each year, while they are in the hospital Intensive Care Unit (ICU). Secondary injuries reduce survival rate after TBI and usually occur within 7 days post-injury. State-of-art monitoring of secondary brain injuries benefits from the acquisition of high-quality and time-aligned electrical data i...
2016: Frontiers in Human Neuroscience
Bernd Antkowiak, Uwe Rudolph
PURPOSE OF REVIEW: The review highlights novel insights into the role of γ-aminobutyric acid A (GABAA) receptors in mediating clinically relevant actions of anesthetic agents. RECENT FINDINGS: GABAA receptors in the hippocampus are located on glutamatergic pyramidal cells and GABAergic interneurons. Etomidate-induced inhibition of a synaptic correlate of learning and memory is caused by receptors on nonpyramidal neurons, likely on interneurons that incorporate α5 subunits...
August 2016: Current Opinion in Anaesthesiology
Joseph Yeen Young, Ann-Christine Duhaime, Paul Albert Caruso, Sandra Patricia Rincon
CT is considered the first-line study for acute intracranial injury in children because of its availability, detection of acute hemorrhage, and lack of sedation. An MRI study with rapidly acquired sequences can obviate the need for sedation and radiation. We compared the detection rate of rapid non-sedated brain MRI to CT for traumatic head injury in young children. We reviewed a series of children 6 years of age or less who presented to our ED during a 5-year period with head trauma and received a non-sedated brain MRI and CT within 24 h of injury...
August 2016: Emergency Radiology
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