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Thromboelastography trauma

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https://www.readbyqxmd.com/read/28315812/onset-of-coagulation-function-recovery-is-delayed-in-severely-injured-trauma-patients-with-venous-thromboembolism
#1
Belinda H McCully, Christopher R Connelly, Kelly A Fair, John B Holcomb, Erin E Fox, Charles E Wade, Eileen M Bulger, Martin A Schreiber
BACKGROUND: Altered coagulation function after trauma may contribute to venous thromboembolism (VTE) development. Severe trauma impairs coagulation function, but the trajectory for recovery is not known. We hypothesized that enhanced, early recovery of coagulation function increases VTE risk in severely-injured trauma patients. STUDY DESIGN: Secondary analysis was performed on data from The Pragmatic Randomized Optimal Platelet and Plasma Ratio (PROPPR) trial, excluding patients who died within 24 hours and/or were on pre-injury anticoagulants...
March 15, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28230635/valproic-acid-modulates-platelet-and-coagulation-function-ex-vivo
#2
Ted Bambakidis, Simone E Dekker, Ihab Halaweish, Baoling Liu, Vahagn C Nikolian, Patrick E Georgoff, Patryk Piascik, Yongqing Li, Martin Sillesen, Hasan B Alam
Trauma-induced coagulopathy is associated with adverse patient outcome. Animal models demonstrate that histone deacetylase inhibitors, such as valproic acid (VPA), improve survival following injury. While in-vivo data suggest that improved survival may in part be because of an attenuation of coagulopathy, it remains unknown whether this is a direct effect of the drug, or the establishment of an overall prosurvival phenotype. We thus conducted an ex-vivo experiment to determine if VPA has an effect on coagulation and platelet function...
February 21, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28219085/fibrinolysis-in-trauma-myth-reality-or-something-in-between
#3
Mark Walsh, Jacob Shreve, Scott Thomas, Ernest Moore, Hunter Moore, Daniel Hake, Tim Pohlman, Patrick Davis, Victoria Ploplis, Andres Piscoya, Julie Wegner, John Bryant, Anton Crepinsek, James Lantry, Forest Sheppard, Francis Castellino
The emphasis on fibrinolysis as an important contributor to trauma-induced coagulopathy (TIC) has led to a debate regarding the relative clinical significance of fibrinolysis in the setting of trauma. The debate has centered on two camps. The one camp defines fibrinolysis in trauma by standard coagulation tests as well as fibrin split products, D-dimers, and plasmin/antiplasmin levels. This camp favors a more liberal use of tranexamic acid and attributes more significance to hyperfibrinolysis in TIC. The other camp favors a definition of fibrinolysis based on the viscoelastic tests (VET), rotational thromboelastometry (ROTEM), and thromboelastography (TEG)...
March 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28219084/diagnosis-and-treatment-of-hyperfibrinolysis-in-trauma-a-european-perspective
#4
Lewis S Gall, Karim Brohi, Ross A Davenport
Fibrinolysis activation occurs almost universally after severe trauma. Systemic hyperfibrinolysis is a key component of acute traumatic coagulopathy and associated with poor clinical outcomes, although controversy exists over optimal treatment strategies. The mechanistic drivers and dynamics of fibrinolytic activation in response to injury and trauma resuscitation are currently unclear. Furthermore, therapeutic triggers are compounded by the lack of a sensitive and rapid diagnostic tool, with discrepancy between hyperfibrinolysis diagnosed by viscoelastic hemostatic assays versus biomarkers for fibrinolysis...
March 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28196659/sutures-impregnated-with-carbazate-activated-polyvinyl-alcohol-reduce-intraperitoneal-adhesions
#5
F Fredriksson, F Sellberg, T Bowden, T Engstrand, D Berglund, H E Lilja
BACKGROUND: Intraperitoneal adhesions cause significant morbidity. They occur after peritoneal trauma, which induces oxidative stress with production of inflammatory cytokines, peroxidized proteins (carbonyls) and lipids (aldehydes). This study aimed to investigate if carbazate-activated polyvinyl alcohol (PVAC), an aldehyde-carbonyl inhibitor, can reduce intraperitoneal adhesions in an experimental model. MATERIAL AND METHODS: Male Sprague-Dawley rats (n=110) underwent laparotomy, cecal abrasion and construction of a small bowel anastomosis...
February 1, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28062209/thromboelastogram-does-not-detect-pre-injury-anticoagulation-in-acute-trauma-patients
#6
Jawad T Ali, Mitchell J Daley, Nina Vadiei, Zachary Enright, Joseph Nguyen, Sadia Ali, Jayson D Aydelotte, Pedro G Teixeira, Thomas B Coopwood, Carlos Vr Brown
PURPOSE: Thromboelastography (TEG) has been recommended to characterize post-traumatic coagulopathy, yet no study has evaluated the impact of pre-injury anticoagulation (AC) on TEG variables. We hypothesized patients on pre-injury AC have a greater incidence of coagulopathy on TEG compared to those without AC. METHODS: This retrospective chart review evaluated all trauma patients admitted to an urban, level one trauma center from February 2011 to September 2014 who received a TEG within the first 24h...
December 26, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28017804/persistent-fibrinolysis-shutdown-is-associated-with-increased-mortality-in-severely-injured-trauma-patients
#7
Jonathan P Meizoso, Charles A Karcutskie, Juliet J Ray, Nicholas Namias, Carl I Schulman, Kenneth G Proctor
BACKGROUND: Acute fibrinolysis shutdown is associated with early mortality after trauma; however, no previous studies have investigated the incidence of persistent fibrinolysis or its association with mortality. We tested the hypothesis that persistent fibrinolysis shutdown is associated with mortality in critically ill trauma patients. STUDY DESIGN: Thromboelastography was performed on ICU admission in 181 adult trauma patients and at 1 week in a subset of 78 patients...
December 23, 2016: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/27994260/a-case-of-successful-thromboelastographic-guided-resuscitation-after-postpartum-hemorrhage-and-cardiac-arrest
#8
M Hurwich, D Zimmer, E Guerra, E Evans, T Shire, M Abernathy, J T Shreve, G R Kolettis, M T McCurdy, F J Castellino, M Walsh
Amniotic fluid embolism (AFE) is an unusual cause of life threatening peri partum hemorrhage (PPH). AFE resuscitation is often associated with renal and respiratory insufficiency, and a coagulopathy similar to disseminated intravascular coagulation (DIC). Resuscitation requires immediate recognition and limited use of crystalloid. We present a case of PPH caused by AFE with resultant cardiac arrest, renal and respiratory failure, and DIC-like coagulopathy, whose successful resuscitation was guided by perfusionist-directed serial thromboelastography (TEG)...
December 2016: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/27940453/perioperative-management-of-the-bleeding-patient
#9
K Ghadimi, J H Levy, I J Welsby
Perioperative bleeding remains a major complication during and after surgery, resulting in increased morbidity and mortality. The principal causes of non-vascular sources of haemostatic perioperative bleeding are a preexisting undetected bleeding disorder, the nature of the operation itself, or acquired coagulation abnormalities secondary to haemorrhage, haemodilution, or haemostatic factor consumption. In the bleeding patient, standard therapeutic approaches include allogeneic blood product administration, concomitant pharmacologic agents, and increasing application of purified and recombinant haemostatic factors...
December 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27689344/evaluation-of-acute-traumatic-coagulopathy-in-dogs-and-cats-following-blunt-force-trauma
#10
Dara L Gottlieb, Jennifer Prittie, Yekaterina Buriko, Kenneth E Lamb
OBJECTIVE: To evaluate the presence of acute traumatic coagulopathy (ATC) in dogs and cats following blunt trauma and to relate coagulation variables with injury severity and admission variables. DESIGN: Prospective, single center, observational study from 2013 to 2014. SETTING: Urban private referral hospital. ANIMALS: Eighteen and 19 client-owned dogs and cats, respectively, sustaining blunt trauma within 8 hours of presentation without prior resuscitation; 17 healthy staff and client-owned control cats METHODS: Blood samples were collected upon presentation for measurement of blood gas, lactate, blood glucose, ionized calcium, PCV, total plasma protein, prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen, platelet count, and thromboelastography...
January 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/27606964/targeting-blood-products-transfusion-in-trauma-what-is-the-role-of-thromboelastography
#11
Samy Figueiredo, Audrey Tantot, Jacques Duranteau
Viscoelastic hemostatic assays (VHAs), mainly thromboelastography (TEG) and the rotational thromboelastometry (ROTEM), provide global information on clot formation and dissolution at patient bedside, allowing fast identification of coagulation disorders. In trauma patients, VHAs are able to predict massive transfusion and mortality. These devices might also be used for applying targeted administration of procoagulant factors (e.g. fibrinogen concentrate) as an alternative to or in addition to using predefined fixed ratios of red blood cells: platelets: fresh frozen plasma/cryoprecipitate...
November 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27531317/platelet-adenosine-diphosphate-inhibition-in-trauma-patients-by-thromboelastography-correlates-with-paradoxical-increase-in-platelet-dense-granule-content-by-flow-cytometry
#12
Ashley N Bartels, Cory Johnson, Julie Lewis, James W Clevenger, Stephen L Barnes, Richard D Hammer, Salman Ahmad
BACKGROUND: The mechanism of platelet dysfunction in acute traumatic coagulopathy is unknown. Traumatic brain injury is hypothesized as a cause, while some investigators presume platelets become "exhausted." We hypothesized that platelet hyperstimulation and consumption resulting from trauma leads to decreased platelet function secondary to depletion of platelet granules. METHODS: Twenty-five trauma patients were divided into traumatic brain injury and no traumatic brain injury groups...
October 2016: Surgery
https://www.readbyqxmd.com/read/27515056/the-confusion-continues-results-from-an-american-association-for-the-surgery-of-trauma-survey-on-massive-transfusion-practices-among-united-states-trauma-centers
#13
Eric Etchill, Jason Sperry, Brian Zuckerbraun, Louis Alarcon, Joshua Brown, Kevin Schuster, Lewis Kaplan, Greta Piper, Andrew Peitzman, Matthew D Neal
BACKGROUND: Massive transfusion practices have undergone several recent developments. We sought to examine institutional practices guiding hemostatic resuscitation in the setting of massive hemorrhage. STUDY DESIGN AND METHODS: A 37-question online survey was sent to American Association for the Surgery of Trauma members. RESULTS: A total of 191 surgeons from 125 institutions completed the survey. Level I and II centers composed 70 and 18% of responding sites, respectively...
October 2016: Transfusion
https://www.readbyqxmd.com/read/27399464/185%C3%A2-the-utility-of-thromboelastography-for-predicting-the-risk-of-progression-of-intracranial-hemorrhage-in-traumatic-brain-injury-patients
#14
Abigail J Rao, Amber Laurie, Cole Hilliard, Rochelle Fu, Tori Lennox, Ronald Barbosa, Martin Schreiber, Susan Rowell
INTRODUCTION: Progression of traumatic intracranial hemorrhage (TICH) is associated with increased morbidity and mortality. Half of patients with TICH progression have normal traditional coagulation laboratory studies. We hypothesized that thromboelastography (TEG), which directly measures clot formation and strength, would predict progression of TICH, the need for neurosurgical procedure, and mortality in patients with TICH. METHODS: A prospective observational study in patients with TICH at a level 1 trauma center was undertaken...
August 2016: Neurosurgery
https://www.readbyqxmd.com/read/27268106/the-influence-of-thermal-trauma-on-pro-and-anticoagulant-activity-of-erythrocyte-derived-microvesicles
#15
Grigory Levin, Ekaterina Sukhareva
The goal of this research was to study the influence of erythrocyte-derived microvesicles on hemostasis parameters during burn. It was found that the number of microvesicles derived from washed erythrocytes of burn patients after 1 day of storage at 37°C was 4.2 times bigger than the number of microvesicles derived from erythrocytes of healthy donors. Hemocoagulation properties of erythrocyte-derived microvesicles of burn patients also change: according to the results of thromboelastography their procoagulant activity increases significantly, at the same time their antithrombin and fibrinilytic activity decrease...
November 2016: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/27206253/thromboelastography-in-orthopaedic-trauma-acute-pelvic-fracture-resuscitation-a-descriptive-pilot-study
#16
Christiaan N Mamczak, Megan Maloney, Braxton Fritz, Bryan Boyer, Scott Thomas, Ed Evans, Victoria A Ploplis, Francis J Castellino, Jonathon McCollester, Mark Walsh
OBJECTIVES: To describe the adjunctive use of thromboelastography (TEG) in directing initial blood component therapy resuscitation of patients with polytrauma with acute pelvic/acetabular fractures. DESIGN: Retrospective cohort review. SETTING: Level-2 trauma center. PATIENTS: Forty adult trauma activations with acute pelvic and/or acetabular fractures were treated with standard fracture care and TEG with adjuvant platelet mapping (TEG/PM) analysis to guide their initial 24-hour resuscitation...
June 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27168561/in-trauma-conventional-rotem-and-teg-results-are-not-interchangeable-but-are-similar-in-clinical-applicability
#17
Sandro Rizoli, Arimie Min, Adic Perez Sanchez, Pang Shek, Richard Grodecki, Precilla Veigas, Henry T Peng
BACKGROUND: There is growing interest in viscoelastic hemostatic assays rotational thromboelastometry (ROTEM) and thromboelastography (TEG) for trauma. Despite shared features, it is unknown whether their results are interchangeable and whether one is clinically superior in predicting mortality, blood transfusion, and diagnosing early trauma coagulopathy. METHODS: We conducted a prospective observational study comparing equivalent ROTEM and TEG parameters. Severely injured patients expected to receive massive transfusion were included...
May 2016: Military Medicine
https://www.readbyqxmd.com/read/27100747/fibrinolytic-shutdown-fascinating-theory-but-randomized-controlled-trial-data-are-needed
#18
Ian Roberts
Administration of tranexamic acid (TXA) to bleeding trauma patients who are within 3 hours of injury has been shown to safely reduce mortality in bleeding trauma patients. However, some believe that thromboelastography (TEG or ROTEM) can be used to subdivide these patients into those that will benefit from TXA and those that will be harmed by it. If thromboelastography can be used in this way there could be important patient benefits. However, if the approach is misguided, patients could be denied a lifesaving treatment...
April 2016: Transfusion
https://www.readbyqxmd.com/read/26960340/targeted-thromboelastographic-teg-blood-component-and-pharmacologic-hemostatic-therapy-in-traumatic-and-acquired-coagulopathy
#19
Mark Walsh, Stephanie Fritz, Daniel Hake, Michael Son, Sarah Greve, Manar Jbara, Swetha Chitta, Braxton Fritz, Adam Miller, Mary K Bader, Jonathon McCollester, Sophia Binz, Alyson Liew-Spilger, Scott Thomas, Anton Crepinsek, Faisal Shariff, Victoria Ploplis, Francis J Castellino
Trauma-induced coagulopathy (TIC) is a recently described condition which traditionally has been diagnosed by the common coagulation tests (CCTs) such as prothrombin time/international normalized ratio (PT/INR), activated partial thromboplastin time (aPTT), platelet count, and fibrinogen levels. The varying sensitivity and specificity of these CCTs have led trauma coagulation researchers and clinicians to use Viscoelastic Tests (VET) such as Thromboelastography (TEG) to provide Targeted Thromboelastographic Hemostatic and Adjunctive Therapy (TTHAT) in a goal directed fashion to those trauma patients in need of hemostatic resuscitation...
2016: Current Drug Targets
https://www.readbyqxmd.com/read/26874143/thromboelastography-does-not-detect-preinjury-antiplatelet-therapy-in-acute-trauma-patients
#20
Mitchell J Daley, Marc D Trust, Evan J Peterson, Kevin Luftman, Andrew H Miller, Sadia Ali, Adam Clark, Jayson D Aydelotte, Thomas B Coopwood, Carlos V R Brown
Thromboelastography (TEG) with platelet mapping has been proposed as an assay to detect the presence of antiplatelet agents (APA), yet no study has evaluated TEG markers of platelet dysfunction in acute trauma patients stratified by the use of preinjury APA. We hypothesized that patients on preinjury APA would demonstrate prolonged TEG markers of platelet dysfunction compared with those not on preinjury APA. This retrospective review evaluated all trauma patients admitted to a Level I trauma center from February 2011 to April 2013 who received a TEG within the first 24 hours of admission...
February 2016: American Surgeon
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