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Thromboelastography trauma

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https://www.readbyqxmd.com/read/29661415/reversal-of-dabigatran-by-intraosseous-or-intravenous-idarucizumab-in-a-porcine-polytrauma-model
#1
N Akman, T Braunschweig, M Honickel, K Schütt, H Schöchl, C Stoppe, R Rossaint, O Grottke
BACKGROUND: Idarucizumab is licensed to reverse dabigatran in life-threatening haemorrhage. Establishment of venous access can be challenging, and the intraosseous (IO) route is a potentially life-saving alternative. In this study, we compared the efficacy and safety of IO or intravenous (i.v.) idarucizumab for dabigatran reversal in a porcine polytrauma model. METHODS: Male pigs (n=21) received oral dabigatran etexilate (30 mg kg-1 bid) for 3 days. On the 4th day, animals received dabigatran infusion and were randomised 1:1:1 to receive IO saline (control), i...
May 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29580113/platelet-biomechanics-platelet-bioenergetics-and-applications-to-clinical-practice-and-translational-research
#2
Mitchell J George, James Bynum, Prajeeda Nair, Andrew P Cap, Charles E Wade, Charles S Cox, Brijesh S Gill
The purpose of this review is to explore the relationship between platelet bioenergetics and biomechanics and how this relationship affects the clinical interpretation of platelet function devices. Recent experimental and technological advances highlight platelet bioenergetics and biomechanics as alternative avenues for collecting clinically relevant data. Platelet bioenergetics drive energy production for key biomechanical processes like adhesion, spreading, aggregation, and contraction. Platelet function devices like thromboelastography, thromboelastometry, and aggregometry measure these biomechanical processes...
March 26, 2018: Platelets
https://www.readbyqxmd.com/read/29538230/enhanced-platelet-function-in-cold-stored-whole-blood-supplemented-with-resveratrol-or-cytochrome-c
#3
Michael L Ekaney, Gabrielle Gonzalez Gray, Iain H McKillop, Susan L Evans
BACKGROUND: Limited availability and use of whole blood (WB) following trauma is driven by perceptions that hemostatic function is limited by platelet dysfunction within 5 days storage. We sought to define the hemostatic function of WB stored at 4°C for up to 25 days, elucidate changes in metabolic parameters and mitochondrial dysfunction in platelets in WB, and the effect of supplementation using resveratrol (Res) or cytochrome c (Cyt c). METHODS: WB was collected, aliquoted, and stored at 4°C without agitation...
March 12, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29493552/pediatric-trauma-transfusion-and-cognitive-aids
#4
Anna Clebone
PURPOSE OF REVIEW: Trauma is the most common cause of pediatric mortality. Much of the research that led to life-saving interventions in adults, however, has not been replicated in the pediatric population. Children have important physiologic and anatomic differences from adults, which impact hemostasis and transfusion. Hemorrhage is a leading cause of death in trauma, and children have important differences in their coagulation profiles. Transfusion strategies, including the massive transfusion protocol and use of antifibrinolytics, are still controversial...
April 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29355793/position-of-the-french-working-group-on-perioperative-haemostasis-gihp-on-viscoelastic-tests-what-role-for-which-indication-in-bleeding-situations
#5
Stéphanie Roullet, Emmanuel de Maistre, Brigitte Ickx, Normand Blais, Sophie Susen, David Faraoni, Delphine Garrigue, Fanny Bonhomme, Anne Godier, Dominique Lasne
PURPOSE: Viscoelastic tests (VETs), thromboelastography (TEG® ) and thromboelastometry (ROTEM® ) are global tests of coagulation performed on whole blood. They evaluate the mechanical strength of a clot as it builds and develops after coagulation itself. The time required to obtain haemostasis results remains a major problem for clinicians dealing with bleeding, although some teams have developed a rapid laboratory response strategy. Indeed, the value of rapid point-of-care diagnostic devices such as VETs has increased over the years...
February 3, 2018: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/29334497/deep-vein-thrombosis-and-venous-thromboembolism-in-trauma
#6
Keith J Ruskin
PURPOSE OF REVIEW: Deep vein thrombosis (DVT) and pulmonary embolus are major causes of hospital-related morbidity and mortality, and are recognized as complications in patients with traumatic injury. Despite the significant morbidity and mortality associated with DVTs, prophylaxis and treatment are still not well understood and remain the subject of research and debate. RECENT FINDINGS: Elements of the patient's history and physical examination, along with thromboelastography, can be used to predict patients who are at greatest risk of DVT and venous thromboembolism (VTE)...
April 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29313313/relationship-of-coagulopathy-and-platelet-dysfunction-to-transfusion-needs-after-traumatic-brain-injury
#7
Grace Martin, Dhavan Shah, Nora Elson, Ryan Boudreau, Dennis Hanseman, Timothy A Pritts, Amy T Makley, Brandon Foreman, Michael D Goodman
BACKGROUND: Coagulopathy and platelet dysfunction commonly develop after traumatic brain injury (TBI). Thromboelastography (TEG) and platelet function assays (PFAs) are often performed at the time of admission; however, their roles in assessing post-TBI coagulopathy have not been investigated. We hypothesized that compared to blunt TBI, penetrating TBI would (1) demonstrate greater coagulopathy by TEG, (2) be associated with abnormal PFA results, and (3) require more blood product transfusions...
January 8, 2018: Neurocritical Care
https://www.readbyqxmd.com/read/29299962/thromboelastometry-in-trauma-care-a-place-in-the-2018-belgian-health-care-system
#8
Martin Lucien Tonglet, Jean-Louis Poplavsky, Laurence Seidel, Jean Marc Minon, Vincenzo D'Orio, Alexandre Ghuysen
Introduction Evidence supporting the use of Thromboelastography (TEG®) and rotational thromboelastometric (ROTEM®) in the trauma setting remains limited. We present the results of a practical evaluation of the potential interest of ROTEM® in the diagnosis of acute coagulopathy and the need for emergent blood product transfusion in the general trauma population of a non-trauma Belgian emergency department. Methods Extracting a convenience cohort from the initial prospective TICCS study, we performed a retrospective analysis to test the following hypothesis: ROTEM® might be helpful to discriminate trauma patients with or without acute coagulopathy...
January 4, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29298240/increased-risk-of-fibrinolysis-shutdown-among-severely-injured-trauma-patients-receiving-tranexamic-acid
#9
Jonathan P Meizoso, Roman Dudaryk, Michelle B Mulder, Juliet J Ray, Charles A Karcutskie, Sarah A Eidelson, Nicholas Namias, Carl I Schulman, Kenneth G Proctor
BACKGROUND: The association between tranexamic acid (TXA) and fibrinolysis shutdown is unknown. We hypothesize that TXA is associated with fibrinolysis shutdown in critically injured trauma patients. METHODS: Two hundred eighteen critically injured adults admitted to the intensive care unit at an urban Level I trauma center from August 2011 to January 2015 who had thromboelastography performed upon intensive care unit admission were reviewed. Groups were stratified based on fibrinolysis shutdown, which was defined as LY30 of 0...
March 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29297814/coagulation-assessment-underutilized-diagnostic-tools-in-zoo-and-aquatic-animal-medicine
#10
Trevor J Gerlach, Ashley Barratclough, Bobbi Conner
Veterinarians specializing in nondomestic species are faced with unique challenges regarding research and diagnostic capabilities given the wild and frequently dangerous nature of their patients. Standard diagnostic techniques used in small or large animal practice are not always possible due to anatomical constraints, size, tractability, or the inherent risk of anesthesia in highly valued, rare species. Diagnostic modalities that utilize simple, relatively noninvasive techniques show promise in evaluating nondomestic species and elucidating the pathophysiology behind poorly characterized disease processes in both wild and captive populations...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29276028/evaluation-for-effects-of-severe-acidosis-on-hemostasis-in-trauma-patients-using-thrombelastography-analyzer
#11
Xin Lv, Yong Mao, Zonghe Qin
OBJECTIVE: To investigate effects of metabolic acidosis on hemostasis function in trauma patients using thromboelastography analyzer. METHODS: 65 critically injured patients and 19 healthy volunteers were enrolled in the study. Three samples of whole blood were collected from each patient or healthy volunteer. These three samples were acidified with 50mmol/l phosphate-buffered saline (PBS) (pH5.8) or a neutral buffer (50mmol/l phosphate, pH7.4) and acidified blood sample with target pH of 6...
December 14, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29088950/neurosurgical-applications-of-viscoelastic-hemostatic-assays
#12
Svetlana Kvint, James Schuster, Monisha A Kumar
Patients taking antithrombotic agents are very common in neurosurgical practice. The perioperative management of these patients can be extremely challenging especially as newer agents, with poorly defined laboratory monitoring and reversal strategies, become more prevalent. This is especially true with emergent cases in which rapid reversal of anticoagulation is required and the patient's exact medical history is not available. With an aging patient population and the associated increase in diseases such as atrial fibrillation, it is expected that the use of these agents will continue to rise in coming years...
November 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28982391/the-impact-of-early-thromboelastography-directed-therapy-in-trauma-resuscitation
#13
Mohamed Mohamed, Karl Majeske, Gul R Sachwani, Kristin Kennedy, Mina Salib, Michael McCann
BACKGROUND: Conventional coagulation tests do not provide an accurate representation of the complex nature of trauma induced coagulopathy. Thrombelastography provides a prompt global overview of all dynamic sequential aspects of trauma induced coagulopathy. The objective of this study was to evaluate the impact of using thrombelastography on blood products utilization, crystalloids utilization, hospital, and intensive care using length of stay, and cost savings. METHODS: We retrospectively reviewed 134 patients (May of 2012 to February of 2015) meeting Class I trauma activation...
October 5, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28930957/clot-dynamics-and-mortality-the-ma-r-ratio
#14
Stephanie A Savage, Ben L Zarzaur, Timothy H Pohlman, Brian L Brewer, Louis J Magnotti, Martin A Croce, Garrett H Lim, Ali C Martin
INTRODUCTION: The coagulopathy of trauma, illustrated by a short R-time, is common and well understood. The physiology behind this may be early thrombin burst with rapid clot formation. Rapid consumption of fibrinogen, however, may result in weak clot and substrate depletion, resulting in low MA. While these characteristics are interesting, utilizing thromboelastography (TEG) to identify those at risk of subsequent bleeding diathesis, especially in those who do not demonstrate early signs of physiologic derangement, is challenging...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28913856/multiplate-and-teg-platelet-mapping-in-a-population-of-severely-injured-trauma-patients
#15
M J George, J Burchfield, B MacFarlane, Y-W W Wang, J C Cardenas, N J White, B S Gill, C E Wade
OBJECTIVES: The objectives of this study were to compare thromboelastography platelet mapping (TEG PM) with impedance aggregometry (Multiplate, MP) in a single trauma population and relate their results clinically. BACKGROUND: Platelet function as measured by thromboelastography and impedance aggregometry demonstrates significant reductions that persist for days following traumatic injury. However, no study compares these devices and the correlation between them is not known...
September 15, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28745251/-using-thromboelastography-to-measure-coagulation-following-massive-blood-loss
#16
M C A Müller, G A E Ponjee
Thromboelastography is becoming increasingly important for diagnosing coagulation disorders in patients with massive blood loss. This whole-blood measurement provides information about the speed of clot formation, clot strength, and degree of fibrinolysis. The result can be used as a basis for making a faster and better choice of a suitable blood product for the patient with severe blood loss. This technique can be carried out simply and quickly as a rapid test ('point-of-care test') or in a central laboratory...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28650356/trending-fibrinolytic-dysregulation-fibrinolysis-shutdown-in-the-days-after-injury-is-associated-with-poor-outcome-in-severely-injured-children
#17
Christine M Leeper, Matthew D Neal, Christine J McKenna, Barbara A Gaines
OBJECTIVE: To trend fibrinolysis after injury and determine the influence of traumatic brain injury (TBI) and massive transfusion on fibrinolysis status. BACKGROUND: Admission fibrinolytic derangement is common in injured children and adults, and is associated with poor outcome. No studies examine fibrinolysis days after injury. METHODS: Prospective study of severely injured children at a level 1 pediatric trauma center. Rapid thromboelastography was obtained on admission and daily for up to 7 days...
September 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28628602/procoagulant-activity-of-human-mesenchymal-stem-cells
#18
Barbara A Christy, Maryanne C Herzig, Robbie K Montgomery, Christopher Delavan, James A Bynum, Kristin M Reddoch, Andrew P Cap
BACKGROUND: Allogeneic mesenchymal stem cells (MSCs) show great potential for the treatment of military and civilian trauma based on their reduced immunogenicity and ability to modulate inflammation and immune function in the recipient. Although generally considered to be safe, MSCs express tissue factor (TF), a potent activator of coagulation. In the current study, we evaluated multiple MSC populations for tissue factor expression and procoagulant activity to characterize safety considerations for systemic use of MSCs in trauma patients who may have altered coagulation homeostasis...
July 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28624047/viscoelastic-monitoring-in-pediatric-trauma-a-survey-of-pediatric-trauma-society-members
#19
Robert T Russell, Ilan I Maizlin, Adam M Vogel
BACKGROUND: Viscoelastic monitoring (VEM), including thromboelastography (TEG) and rotational thromboelastometry (ROTEM) in the setting of goal-directed hemostatic resuscitation has been shown to improve outcomes in adult trauma. The American College of Surgeons (ACS) Committee on Trauma recommends that "thromboelastography should be available at level I and level II trauma centers". The purpose of this study is to determine the current availability and utilization of VEM in pediatric trauma...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28601310/hemoglobin-based-oxygen-carriers-promote-systemic-hyperfibrinolysis-that-is-both-dependent-and-independent-of-plasmin
#20
Alexander P Morton, Ernest E Moore, Hunter B Moore, Eduardo Gonzalez, Michael P Chapman, Erik Peltz, Anirban Banerjee, Christopher Silliman
BACKGROUND: Hyperfibrinolysis plays an integral role in the genesis of trauma-induced coagulopathy. Recent data demonstrate that red blood cell lysis promotes fibrinolysis; however, the mechanism is unclear. Hemoglobin-based oxygen carriers (HBOCs) have been developed for resuscitation and have been associated with coagulopathy. We hypothesize that replacement of whole blood (WB) using an HBOC results in a coagulopathy because of the presence of free hemoglobin. MATERIALS AND METHODS: WB was sampled from healthy donors (n = 6)...
June 1, 2017: Journal of Surgical Research
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