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Hypothermia for neurologic disease

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https://www.readbyqxmd.com/read/28628913/age-dependent-effects-of-alk5-inhibition-and-mechanism-of-neuroprotection-in-neonatal-hypoxic-ischemic-brain-injury
#1
Brian H Kim, Mariano Guardia Clausi, Michelle Frondelli, Israel C Nnah, Chaitali Saqcena, Radek Dobrowolski, Steven W Levison
Neonatal encephalopathy due to hypoxic-ischemic (HI) brain injury triggers a wave of neuroinflammatory events attributed to causing the progressive degeneration and functional deficits seen weeks after the initial insult. In a recent set of studies, we evaluated the therapeutic efficacy of a small molecule antagonist for ALK5 (activin-like kinase 5 ), TGF-β receptor in a rat model of moderate perinatal HI and found significant improvements in neurologic outcomes. Here, we have extended those studies to evaluate the efficacy of delayed TGF-β receptor antagonism on postnatal day (P) 6 and P9 HI rat pups with and without hypothermia...
June 20, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28484206/a-rare-case-of-neurosarcoidosis-presenting-as-severe-hypothermia
#2
Ribhi Hazin, Diana Saed, Mohammed Salem, Mohamed Zeyara, Mohammed Omar Subei
BACKGROUND Sarcoidosis is a systemic disease of unclear etiology with an estimated prevalence of 10 cases per 100,000 population. Although sarcoidosis primarily affects the pulmonary system, it affects the nervous system in 5-10% of patients with the condition. CASE REPORT This article describes a case of neurosarcoidosis with the primary presenting finding of hypothermia. A 41-year-old African-American man with a past medical history significant for hypertension, asthma, and anemia, presented to the Emergency Department after being found unresponsive at home...
May 9, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28382198/adverse-drug-reactions-in-therapeutic-hypothermia-after-cardiac-arrest
#3
Robert Witcher, Amy L Dzierba, Catherine Kim, Pamela L Smithburger, Sandra L Kane-Gill
BACKGROUND: Therapeutic hypothermia (TH) improves survival and neurologic function in comatose survivors of cardiac arrest. Many medications used to support TH have altered pharmacokinetics and pharmacodynamics during this treatment. It is unknown if or at what frequency the medications used during TH cause adverse drug reactions (ADRs). METHODS: A retrospective chart review was conducted for patients admitted to an intensive care unit (ICU) after cardiac arrest and treated with TH from January 2009 to June 2012 at two urban, university-affiliated, tertiary-care medical centres...
March 2017: Therapeutic Advances in Drug Safety
https://www.readbyqxmd.com/read/28271403/combination-treatment-with-methylene-blue-and-hypothermia-in-global-cerebral-ischemia
#4
Lei Li, Rongli Yang, Pingjing Li, Hailong Lu, Jingbo Hao, Liyan Li, Donovan Tucker, Quanguang Zhang
Therapeutic hypothermia (TH) is the most potent therapeutic strategy for global cerebral ischemia (GCI), usually induced by cardiac arrest. TH has been shown both to suppress the delayed neuronal cell death in the vulnerable hippocampal CA1 subregion and to improve neurological outcomes in experimental animals after GCI. However, given the multiple adverse effects resulting from TH, application of such a therapy is typically limited. In recent years, methylene blue (MB) has emerged as a potential therapeutic drug for the treatment of neurodegenerative diseases...
March 7, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28250763/molecular-chaperones-and-hypoxic-ischemic-encephalopathy
#5
REVIEW
Cong Hua, Wei-Na Ju, Hang Jin, Xin Sun, Gang Zhao
Hypoxic-ischemic encephalopathy (HIE) is a disease that occurs when the brain is subjected to hypoxia, resulting in neuronal death and neurological deficits, with a poor prognosis. The mechanisms underlying hypoxic-ischemic brain injury include excitatory amino acid release, cellular proteolysis, reactive oxygen species generation, nitric oxide synthesis, and inflammation. The molecular and cellular changes in HIE include protein misfolding, aggregation, and destruction of organelles. The apoptotic pathways activated by ischemia and hypoxia include the mitochondrial pathway, the extrinsic Fas receptor pathway, and the endoplasmic reticulum stress-induced pathway...
January 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28222830/impact-of-early-vasopressor-administration-on-neurological-outcomes-after-prolonged-out-of-hospital-cardiac-arrest
#6
Michael W Hubble, Clark Tyson
Introduction Vasopressors are associated with return of spontaneous circulation (ROSC), but no long-term benefit has been demonstrated in randomized trials. However, these trials did not control for the timing of vasopressor administration which may influence outcomes. Consequently, the objective of this study was to develop a model describing the likelihood of favorable neurological outcome (cerebral performance category [CPC] 1 or 2) as a function of the public safety answering point call receipt (PSAP)-to-pressor-interval (PPI) in prolonged out-of-hospital cardiac arrest...
February 22, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28173871/characterization-and-pathogenesis-of-aerosolized-eastern-equine-encephalitis-in-the-common-marmoset-callithrix-jacchus
#7
Aimee I Porter, Rebecca A Erwin-Cohen, Nancy Twenhafel, Taylor Chance, Steven B Yee, Steven J Kern, David Norwood, Laurie J Hartman, Michael D Parker, Pamela J Glass, Luis DaSilva
BACKGROUND: Licensed antiviral therapeutics and vaccines to protect against eastern equine encephalitis virus (EEEV) in humans currently do not exist. Animal models that faithfully recapitulate the clinical characteristics of human EEEV encephalitic disease, including fever, drowsiness, anorexia, and neurological signs such as seizures, are needed to satisfy requirements of the Food and Drug Administration (FDA) for clinical product licensing under the Animal Rule. METHODS: In an effort to meet this requirement, we estimated the median lethal dose and described the pathogenesis of aerosolized EEEV in the common marmoset (Callithrix jacchus)...
February 7, 2017: Virology Journal
https://www.readbyqxmd.com/read/28040762/glial-fibrillary-acidic-protein-plasma-levels-are-correlated-with-degree-of-hypothermia-during-cardiopulmonary-bypass-in-congenital-heart-disease-surgery
#8
Luca Vedovelli, Massimo Padalino, Sara D'Aronco, Giovanni Stellin, Carlo Ori, Virgilio P Carnielli, Manuela Simonato, Paola Cogo
OBJECTIVES: Improved congenital heart defect (CHD) operations have reduced operative mortality to 3%. The major concern is now long-term neurological outcomes. We measured plasma glial fibrillary acidic protein (GFAP), an early marker of brain injury, during different phases of cardiopulmonary bypass (CPB), to correlate the increase of GFAP to clinical parameters or specific operative phases. METHODS: We performed a prospective, single-centre, observational study in children undergoing cardiac operations...
December 31, 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/27982345/comparison-of-early-outcomes-with-three-approaches-for-combined-coronary-revascularization-and-carotid-endarterectomy
#9
Arzu Antal Dönmez, Taylan Adademir, Hakan Sacli, Cengiz Koksal, Mete Alp
Objective: This study aims to compare three different surgical approaches for combined coronary and carotid artery stenosis as a single stage procedure and to assess effect of operative strategy on mortality and neurological complications. Methods: This retrospective study involves 136 patients who had synchronous coronary artery revascularization and carotid endarterectomy in our institution, between January 2002 and December 2012. Patients were divided into 3 groups according to the surgical technique used...
September 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27334391/anesthetic-management-of-a-patient-with-polycythemia-vera-for-neurosurgery
#10
Nodu Shivananda Gautham, Appavoo Arulvelan, Sethuraman Manikandan
Polycythemia vera (PV) is a myeloproliferative disorder characterized by excess red cell clonality. The increased number of red blood cells can lead to increased viscosity of the blood and ultimately compromise the blood supply to the end organs. Thromboembolic and hemorrhagic complications can also develop. Patients with PV presenting with neurological diseases that require surgical intervention are at an increased risk due to various factors, such as immobility, prolonged surgical time, hypothermia and dehydration...
October 2016: Journal of Anesthesia
https://www.readbyqxmd.com/read/27190198/moderate-hypothermia-%C3%A2-24-and-%C3%A2-28%C3%A2-c-with-hypothermic-circulatory-arrest-for-proximal-aortic-operations-in-patients-with-previous-cardiac-surgery
#11
Ourania Preventza, Andrea Garcia, Sarang A Kashyap, Shahab Akvan, Denton A Cooley, Kiki Simpson, Athina Rammou, Matt D Price, Shuab Omer, Faisal G Bakaeen, Lorraine D Cornwell, Joseph S Coselli
OBJECTIVES: To determine whether, in patients with previous cardiac operations, moderate hypothermia (between 24 and 28°C) for hypothermic circulatory arrest (HCA) during antegrade cerebral perfusion (ACP) is safe for use during surgery on the proximal aorta and transverse aortic arch. METHODS: Over a 7-year period, 118 patients underwent ascending aortic and hemiarch repair (n = 70; 59.3%), total arch replacement (n = 47; 39.8%) or ascending aortic replacement to treat porcelain aorta (n = 1; 0...
November 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27105285/early-prognosticators-for-induction-of-therapeutic-hypothermia-following-cardiac-arrest
#12
Ediz Tasan, Michael E Jesinger, Richard J Charnigo, Sage P Kramer, Sooyeon Kim, Linda Clements, Alison L Bailey, Charles L Campbell
The American Heart Association recommends therapeutic hypothermia for comatose patients with return of spontaneous circulation after out-of-hospital ventricular fibrillation cardiac arrest. While there is a growing body of evidence for the general efficacy of therapeutic hypothermia, the individualized benefit of therapy is not currently predictable. Ninety-one consecutive patients, from April 2011 to July 2014, were treated at the University of Kentucky Medical Center with the therapeutic hypothermia protocol...
August 2016: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/27006837/early-recognition-of-foreign-body-aspiration-as-the-cause-of-cardiac-arrest
#13
Muhammad Kashif, Hafiz Rizwan Talib Hashmi, Misbahuddin Khaja
Foreign body aspiration (FBA) is uncommon in the adult population but can be a life-threatening condition. Clinical manifestations vary according to the degree of airway obstruction, and, in some cases, making the correct diagnosis requires a high level of clinical suspicion combined with a detailed history and exam. Sudden cardiac arrest after FBA may occur secondary to asphyxiation. We present a 48-year-old male with no history of cardiac disease brought to the emergency department after an out-of-hospital cardiac arrest (OHCA)...
2016: Case Reports in Critical Care
https://www.readbyqxmd.com/read/26994681/early-neurologic-examination-is-not-reliable-for-prognostication-in-post-cardiac-arrest-patients-who-undergo-therapeutic-hypothermia
#14
Michael S Merrill, Catherine M Wares, Alan C Heffner, Kenneth L Shauger, H James Norton, Michael S Runyon, David A Pearson
BACKGROUND: Recent advances in post-cardiac arrest (CA) care including therapeutic hypothermia (TH) have improved survival and favorable neurologic outcomes for survivors of CA. Survivors often present with deep coma and lack of brainstem reflexes, which are generally associated with adverse outcomes in many disease processes. Little is known regarding the role of initial emergency department (ED) neurological examination and its potential for prognostication. OBJECTIVES: The purpose of this study is to determine if components of a standardized neurologic examination are reliable prognosticators in patients recently resuscitated from CA...
June 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/26968917/a-new-concentric-double-prosthesis-for-sutureless-magnetic-assisted-aortic-arch-inclusion
#15
Marco Cirillo
Acute dissection of the ascending aorta is a life-threatening condition in which the aortic wall develops one or more tears of the intima associated with intramural rupture of the media layer with subsequent formation of a two lumina vessel. The remaining outer layer is just the adventitia, with high risk of complete rupture. Vital organs may be under-perfused. Mortality rate in this acute event is about 50% if an emergent surgical procedure is not performed as soon as possible to replace the tract affected by the primary rupture...
April 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/26863153/pediatric-neurocritical-care-in-the-21st-century-from-empiricism-to-evidence
#16
REVIEW
Mark S Wainwright, Gregory Hansen, Juan Piantino
PURPOSE OF REVIEW: Approximately one in five children admitted to a pediatric ICU have a new central nervous system injury or a neurological complication of their critical illness. The spectrum of neurologic insults in children is diverse and clinical practice is largely empirical, as few randomized, controlled trials have been reported. This lack of data poses a substantial challenge to the practice of pediatric neurocritical care (PNCC). PNCC has emerged as a novel subspecialty, and its presence is expanding within tertiary care centers...
April 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/26684246/comprehensive-evaluation-of-neuroprotection-achieved-by-extended-selective-brain-cooling-therapy-in-a-rat-model-of-penetrating-ballistic-like-brain-injury
#17
Xi-Chun May Lu, Deborah A Shear, Ying Deng-Bryant, Lai Yee Leung, Guo Wei, Zhiyong Chen, Frank C Tortella
Brain hypothermia has been considered as a promising alternative to whole-body hypothermia in treating acute neurological disease, for example, traumatic brain injury. Previously, we demonstrated that 2-hours selective brain cooling (SBC) effectively mitigated acute (≤24 hours postinjury) neurophysiological dysfunction induced by a penetrating ballistic-like brain injury (PBBI) in rats. This study evaluated neuroprotective effects of extended SBC (4 or 8 hours in duration) on sub-acute secondary injuries between 3 and 21 days postinjury (DPI)...
March 2016: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/26507536/preclinical-neuroprotective-actions-of-xenon-and-possible-implications-for-human-therapeutics-a-narrative-review
#18
REVIEW
Mervyn Maze
PURPOSE: The purpose of this report is to facilitate an understanding of the possible application of xenon for neuroprotection in critical care settings. This narrative review appraises the literature assessing the efficacy and safety of xenon in preclinical models of acute ongoing neurologic injury. SOURCE: Databases of the published literature (MEDLINE® and EMBASE™) were appraised for peer-reviewed manuscripts addressing the use of xenon in both preclinical models and disease states of acute ongoing neurologic injury...
February 2016: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/26455248/target-temperature-management-of-33-degrees-c-exerts-beneficial-haemodynamic-effects-after-out-of-hospital-cardiac-arrest
#19
Mathias Forkmann, Steffen Kolschmann, Luise Holzhauser, Karim Ibrahim, Michael Guenther, Marian Christoph, Joerg T Fuhrmann, Alessandra Boscheri, Alexander Schmeiβer, Ruth H Strasser, Carsten Wunderlich
BACKGROUND: Accumulating evidence indicates that target temperature management (TTM) is beneficial in patients resuscitated after cardiac arrest since it appears to improve neurological outcome. However, the optimal cooling method (surface vs. intravascular) has not yet been specified. Substantial heart disease is present in most of these patients and therefore haemodynamic effects of cooling need to be considered very carefully. We analysed the haemodynamic response to TTM in patients treated with surface versus intravascular cooling following out-of-hospital cardiac arrest...
August 2015: Acta Cardiologica
https://www.readbyqxmd.com/read/26426236/cardiac-arrest-and-postanoxic-encephalopathy
#20
REVIEW
David M Greer
PURPOSE OF REVIEW: Neuroprognostication following cardiac arrest is a common and challenging dilemma for neurologists and intensivists, complicated by the use of therapeutic hypothermia and targeted temperature management. Great advances have been made in understanding the mechanisms of disorders of consciousness in hypoxic-ischemic brain injury, and new diagnostic and therapeutic avenues are arising. RECENT FINDINGS: In the era of therapeutic hypothermia and targeted temperature management, traditional clinical signs, electrophysiologic findings, and chemical biomarkers have now become questionable or variable, and the proper time for diagnostic and prognostic testing has become murky...
October 2015: Continuum: Lifelong Learning in Neurology
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