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ROTEM fibrinogen

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https://www.readbyqxmd.com/read/28651441/the-effect-of-ex-vivo-factor-xiii-supplementation-on-clot-formation-in-blood-samples-from-cardiac-and-scoliosis-surgery-patients
#1
Caroline Shams Hakimi, Malin S Carling, Emma C Hansson, Helena Brisby, Camilla Hesse, Vladimir Radulovic, Anders Jeppsson
Excessive perioperative bleeding remains a substantial problem. Factor XIII (FXIII) contributes to clot stability, and it has therefore been suggested that supplementation with FXIII concentrate may improve perioperative hemostasis. We evaluated the effects of increasing doses of FXIII, alone or in combination with fibrinogen or platelet concentrate, in blood samples from 2 considerably different groups of surgical patients: cardiac and scoliosis surgery patients. Whole-blood samples were collected immediately after operation from cardiac and scoliosis surgery patients...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28632435/relative-effects-of-plasma-fibrinogen-concentrate-and-factor-xiii-on-rotem-coagulation-profiles-in-an-in-vitro-model-of-massive-transfusion-in-trauma
#2
David E Schmidt, Märit Halmin, Agneta Wikman, Anders Östlund, Anna Ågren
Massive traumatic haemorrhage is aggravated through the development of trauma-induced coagulopathy, which is managed by plasma transfusion and/or fibrinogen concentrate administration. It is yet unclear whether these treatments are equally potent in ensuring adequate haemostasis, and whether additional factor XIII (FXIII) administration provides further benefits. In this study, we compared ROTEM whole blood coagulation profiles after experimental massive transfusion with different transfusion regimens in an in vitro model of dilution- and transfusion-related coagulopathy...
June 20, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28549445/fibrinogen-early-in-severe-trauma-study-feisty-study-protocol-for-a-randomised-controlled-trial
#3
James Winearls, Martin Wullschleger, Elizabeth Wake, Catherine Hurn, Jeremy Furyk, Glenn Ryan, Melita Trout, James Walsham, Anthony Holley, Jeremy Cohen, Megan Shuttleworth, Wayne Dyer, Gerben Keijzers, John F Fraser, Jeffrey Presneill, Don Campbell
BACKGROUND: Haemorrhage is a leading cause of death in severe trauma. Fibrinogen plays a critical role in maintaining haemostasis in traumatic haemorrhage. Early fibrinogen replacement is recommended by several international trauma guidelines using either fibrinogen concentrate (FC) or cryoprecipitate (Cryo). There is limited evidence to support one product over the other with widespread geographic and institutional variation in practice. This pilot trial is the first randomised controlled trial comparing FC to Cryo in traumatic haemorrhage...
May 26, 2017: Trials
https://www.readbyqxmd.com/read/28525329/thromboelastographic-profile-of-goat-blood-after-the-experimental-injury-of-the-femoral-artery-and-use-of-quikclot-gauze-and-celox-gauze-dressings
#4
RANDOMIZED CONTROLLED TRIAL
P Sobiech, Z Adamiak, P Holak, P Jastrzębski, J Rogowski, M Brzeziński, K Bury, M Jałyński, W Baumgartner
The aim of this study was to evaluate the suitability of thromboelastometry for the analysis of blood test results in goats after the use of hemostatic dressings to control massive bleeding. The study was carried out on 12 goats, 6 animals in each of two subgroups. In all experimental animals incision of the femoral artery was performed, and bleeding was controlled with QuikClot gauze in the first group and Celox gauze in the second group. Dressings were applied for 60 minutes. Blood samples for thromboelastometry were collected from the jugular vein before the incision and 60 min after the application of a dressing...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28503124/factor-xiii-deficiency-and-thrombocytopenia-are-frequent-modulators-of-postoperative-clot-firmness-in-a-surgical-intensive-care-unit
#5
Sarah von Rappard, Corina Hinnen, Roger Lussmann, Manuela Rechsteiner, Wolfgang Korte
OBJECTIVE: Fibrinogen and factor XIII (FXIII) have been shown to critically influence clot firmness in the intraoperative setting and thus likely influence intraoperative bleeding. We were interested to identify potential modulators of postoperative clot firmness in a tertiary care hospital surgical intensive care unit setting, independent of their clinical course during surgery. METHODS: 272 day-shift consecutive patients were evaluated for whole blood clot firmness evaluated by the ROTEM® EXTEM thrombelastometric assay and various potential modulators of clot firmness upon arrival at the surgical intensive care unit (SICU)...
April 2017: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/28503123/thromboelastometry-and-thrombelastography-analysis-under-normal-physiological-conditions-systematic-review
#6
Marcel Adler, Sandra Ivic, Nicolas S Bodmer, Hugo Ten Cate, Lucas M Bachmann, Walter A Wuillemin, Michael Nagler
BACKGROUND: Studies investigating thromboelastometry or thrombelastography analyses in a physiological context are scattered and not easy to access. OBJECTIVE: To systematically retrieve and describe published reports studying healthy subjects and targeting at the correlation of ROTEM® and TEG® measurements with conventional parameters of hemostasis. METHODS: Systematic Review: Papers were searched in Medline, Scopus and the Science Citation Index database...
April 2017: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/28498944/assessment-of-standard-laboratory-tests-and-rotational-thromboelastometry-for-the-prediction-of-postoperative-bleeding-in-liver-transplantation
#7
T M Dötsch, D Dirkmann, D Bezinover, M Hartmann, J W Treckmann, A Paul, F H Saner
Background.: Perioperative bleeding remains a major challenge in liver transplantation. We aimed to compare standard laboratory tests with thromboelastometry (ROTEM ® ) with regard to their ability to predict postoperative non-surgical bleeding. Methods.: Data from 243 adult liver transplant recipients from January 2012 to May 2014 were evaluated retrospectively. Upon admission to the intensive care unit, coagulation status was assessed using standard laboratory tests [prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen concentration, and platelet count] and ROTEM ® whole blood coagulation assays...
May 12, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28498140/effect-of-albumin-in-combination-with-mannitol-on-whole-blood-coagulation-in-vitro-assessed-by-thromboelastometry
#8
Kadri Lillemäe, Antti T Laine, Alexey Schramko, Tomi T Niemi
BACKGROUND: Albumin and mannitol may interfere with hemostasis, but their coinfluence is unclear. We aimed to determine the effects of albumin alone and in combination with mannitol or Ringer acetate (RAC) on hemostasis in crossover in vitro study. MATERIALS AND METHODS: From citrated fresh whole blood withdrawn from 10 volunteers, we prepared 2.5, 5, 10, 15, and 20 vol% dilutions of 4% albumin (Alb group). Each sample was thereafter diluted by 15% mannitol (Alb/Man group) or RAC (Alb/RAC group) at a ratio of 9:1...
May 11, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28480552/hyperfibrinolysis-and-hypofibrinogenemia-diagnosed-with-rotational-thromboelastometry-in-dogs-naturally-infected-with-angiostrongylus-vasorum
#9
N E Sigrist, N Hofer-Inteeworn, R Jud Schefer, C Kuemmerle-Fraune, M Schnyder, A P N Kutter
BACKGROUND: The pathomechanism of Angiostrongylus vasorum infection-associated bleeding diathesis in dogs is not fully understood. OBJECTIVE: To describe rotational thromboelastometry (ROTEM) parameters in dogs naturally infected with A. vasorum and to compare ROTEM parameters between infected dogs with and without clinical signs of bleeding. ANIMALS: A total of 21 dogs presented between 2013 and 2016. METHODS: Dogs with A...
July 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28473975/increased-clot-formation-in-the-absence-of-increased-thrombin-generation-in-patients-with-peripheral-arterial-disease-a-case-control-study
#10
Marie-Claire F Kleinegris, Joke Konings, Jan W Daemen, Yvonne Henskens, Bas de Laat, Henri M H Spronk, Arina J Ten Cate-Hoek, Hugo Ten Cate
BACKGROUND: In peripheral arterial disease (PAD), activation of the hemostatic system may contribute to atherosclerosis progression and atherothrombotic events. OBJECTIVE: This case-control study assesses the overall coagulation status in PAD patients by evaluating coagulation markers in combination with thrombin generation potential, whole blood (WB) clot formation, and fibrinolysis. METHODS: In blood from 40 PAD patients (n = 20 with cardiovascular event within 1 year after initial diagnosis, n = 20 without) and 40 apparently healthy controls, thrombin generation was determined in WB and platelet-poor plasma...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28457980/reversal-of-trauma-induced-coagulopathy-using-first-line-coagulation-factor-concentrates-or-fresh-frozen-plasma-retic-a-single-centre-parallel-group-open-label-randomised-trial
#11
Petra Innerhofer, Dietmar Fries, Markus Mittermayr, Nicole Innerhofer, Daniel von Langen, Tobias Hell, Gottfried Gruber, Stefan Schmid, Barbara Friesenecker, Ingo H Lorenz, Mathias Ströhle, Verena Rastner, Susanne Trübsbach, Helmut Raab, Benedikt Treml, Dieter Wally, Benjamin Treichl, Agnes Mayr, Christof Kranewitter, Elgar Oswald
BACKGROUND: Effective treatment of trauma-induced coagulopathy is important; however, the optimal therapy is still not known. We aimed to compare the efficacy of first-line therapy using fresh frozen plasma (FFP) or coagulation factor concentrates (CFC) for the reversal of trauma-induced coagulopathy, the arising transfusion requirements, and consequently the development of multiple organ failure. METHODS: This single-centre, parallel-group, open-label, randomised trial was done at the Level 1 Trauma Center in Innsbruck Medical University Hospital (Innsbruck, Austria)...
June 2017: Lancet Haematology
https://www.readbyqxmd.com/read/28439440/a-comparison-of-the-effects-of-20-mannitol-and-3-nacl-on-coagulation-parameters-in-vitro-using-rotem-a-prospective-randomized-crossover-study
#12
Achmet Ali, Bilge Şencan, Pulat Akın Sabancı, Demet Altun, Aylin Tetik, Lerzan Recep Doğan, İbrahim Özkan Akıncı
OBJECTIVE: The aim of the present study is to compare the effect of 20% mannitol and 3% NaCl on blood coagulation in vitro using rotational thromboelastometry (ROTEM). METHODS: Twenty-millilitre blood samples were obtained from 15 volunteers. In each group, 2 mL blood samples were collected into both polypropylene tubes and EDTA tubes for ROTEM and hemogram analysis. After sampling, blood samples were diluted with test solutions. Group C (control): Only blood, Group M (mannitol): 7% vol 20% mannitol concentration in the blood, Group hypertonic saline (HS): 7% vol 3% hypertonic saline (NaCl) in the blood, Group M/H (mannitol and hydroxyethyl starch solutions [HES]): 6% vol 20% mannitol concentration and 8% vol HES in the blood and Group HS/H (hypertonic saline and HES): 6% vol 3% hypertonic saline concentration and 8% vol HES in the blood...
April 2017: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/28406726/role-of-heterotrimeric-g-proteins-in-platelet-activation-and-clot-formation-in-platelets-treated-with-integrin-%C3%AE-iib%C3%AE-3-inhibitor
#13
Ivan Budnik, Boris Shenkman, Hagit Hauschner, Isaac Zilinsky, Naphtali Savion
Mechanisms of platelet activation are triggered by thrombin, adenosine diphosphate (ADP), epinephrine, thromboxane A2, and other soluble agonists which induce signaling via heterotrimeric Gαq, Gαi, and Gα12/13 proteins. We have undertaken a study addressing the contribution of these G proteins to platelet activation and clot formation in the presence of eptifibatide, thus excluding outside-in signaling provided by integrin αIIbβ3-fibrinogen engagement. Selective and combined activation of the G proteins was achieved by using combinations of platelet agonists and inhibitors...
April 13, 2017: Platelets
https://www.readbyqxmd.com/read/28393783/coagulopathies-in-cyanotic-cardiac-patients-an-analysis-with-three-point-of-care-testing-devices-thromboelastography-rotational-thromboelastometry-and-sonoclot-analyzer
#14
Vandana Bhardwaj, Poonam Malhotra, Suruchi Hasija, Ujjwal Kumar Chowdury, Neha Pangasa
INTRODUCTION: In the last few years, viscoelastic point-of-care (POC) coagulation devices such as thromboelastography (TEG), rotational thromboelastometry (ROTEM), and Sonoclot (SON) analyzer have been increasingly used in major surgeries for timely assessment and management of coagulopathies. The aim of the present study was to evaluate coagulation profile of cyanotic cardiac patients with TEG, ROTEM, and SON analyzer. In addition, we assessed the correlation of standard laboratory coagulation tests and postoperative chest drain output (CDO) with the parameters of POC testing devices...
April 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28360822/impact-of-blood-hypercoagulability-on-in-vitro-fertilization-outcomes-a-prospective-longitudinal-observational-study
#15
Grigoris T Gerotziafas, Patrick Van Dreden, Emmanuelle Mathieu d'Argent, Eleftheria Lefkou, Matthieu Grusse, Marjorie Comtet, Rabiatou Sangare, Hela Ketatni, Annette K Larsen, Ismail Elalamy
BACKGROUND: Blood coagulation plays a crucial role in the blastocyst implantation process and its alteration may be related to in vitro fertilization (IVF) failure. We conducted a prospective observational longitudinal study in women eligible for IVF to explore the association between alterations of coagulation with the IVF outcome and to identify the biomarkers of hypercoagulability which are related with this outcome. METHODS: Thirty-eight women eligible for IVF (IVF-group) and 30 healthy, age-matched women (control group) were included...
2017: Thrombosis Journal
https://www.readbyqxmd.com/read/28359133/point-of-care-coagulation-testing-in-cardiac-surgery
#16
Daniel Bolliger, Kenichi A Tanaka
Bleeding complications after cardiac surgery are common and are associated with increased morbidity and mortality. Their etiology is multifactorial, and treatment decisions are time sensitive. Point-of-care (POC) testing has an advantage over standard laboratory tests for faster turn-around times, and timely decision on coagulation intervention(s). The most common POC coagulation testing is the activated clotting time (ACT), used to monitor heparin therapy while on cardiopulmonary bypass. Viscoelastic coagulation tests including thromboelastometry (ROTEM) and thromboelastography (TEG) have been recommended for the treatment of postoperative bleeding after cardiac surgery because the ROTEM/TEG-guided treatment algorithms reduced the use of blood products...
June 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28317031/effect-of-tranexamic-acid-on-coagulation-and-fibrinolysis-in-women-with-postpartum-haemorrhage-woman-etac-protocol-and-statistical-analysis-plan-for-a-randomized-controlled-trial
#17
Haleema Shakur, Bukola Fawole, Modupe Kuti, Oladapo Olayemi, Adenike Bello, Olayinka Ogunbode, Taiwo Kotila, Chris O Aimakhu, Sumaya Huque, Meghann Gregg, Ian Roberts
Background: Postpartum haemorrhage (PPH) is a leading cause of maternal death. Tranexamic acid has the potential to reduce bleeding and a large randomized controlled trial of its effect on maternal health outcomes in women with PPH (The WOMAN trial) is ongoing. We will examine the effect of tranexamic acid on fibrinolysis and coagulation in a subset of WOMAN trial participants. Methods. Adult women with clinically diagnosed primary PPH after vaginal or caesarean delivery are eligible for inclusion in the WOMAN trial...
December 16, 2016: Wellcome Open Research
https://www.readbyqxmd.com/read/28292321/prothrombin-time-is-predictive-of-low-plasma-prothrombin-concentration-and-clinical-outcome-in-patients-with-trauma-hemorrhage-analyses-of-prospective-observational-cohort-studies
#18
Clare A Balendran, Ann Lövgren, Kenny M Hansson, Karin Nelander, Marita Olsson, Karin J Johansson, Karim Brohi, Dietmar Fries, Anders Berggren
BACKGROUND: Fibrinogen and prothrombin have been suggested to become rate limiting in trauma associated coagulopathy. Administration of fibrinogen is now recommended, however, the importance of prothrombin to patient outcome is unknown. METHODS: We have utilized two trauma patient databases (database 1 n = 358 and database 2 n = 331) to investigate the relationship of plasma prothrombin concentration on clinical outcome and coagulation status. Database 1 has been used to assess the relationship of plasma prothrombin to administered packed red blood cells (PRBC), clinical outcome and coagulation biomarkers (Prothrombin Time (PT), ROTEM EXTEM Coagulation Time (CT) and Maximum Clot Firmness (MCF))...
March 14, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28291473/physiological-impact-of-platelet-apheresis-in-pigs-oxygen-metabolism-and-coagulation
#19
Wenjun Z Martini, Cassandra M Rodriguez, Jonathan Richardson, James K Aden, Andrew P Cap, Michael A Dubick
INTRODUCTION: Platelet apheresis is a routine clinical practice, but the physiological impact on the donors has been incompletely characterized. This study measured the effects of platelet apheresis on hemodynamics, oxygen metabolism, and coagulation in pigs to assess its impact before employing the animals in experimental studies. METHODS: Forty pigs (39.8 ± 0.6 kg) were anesthetized and catheterized with an apheresis catheter in the femoral vein. During the platelet apheresis process, blood was withdrawn from the pig to separate platelets, and the remaining red blood cells and plasma returned back to the pigs, using the Haemonetics MCS+9000 system...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28276730/platelet-reactivity-in-thromboelastometry-revision-of-the-fibtem-test-a-basic-study
#20
Grzegorz Biolik, Michał Kokot, Mariola Sznapka, Agnieszka Święszek, Damian Ziaja, Krzysztof Pawlicki, Krzysztof Ziaja
This study aimed to investigate modifications to the FIBTEM test to better assess fibrinogen levels and the quality of fibrin polymerization in citrated blood using Multiplate impedance aggregometry to verify platelet inhibition. Blood samples from 26 healthy volunteers were subjected to thromboelastometry studies (EXTEM/FIBTEM tests) in accordance with the standard study protocol (cytochalasin D) and according to a modified protocol (synthetic IIbIIIa receptor antagonist vs. acetylsalicylic acid [ASA] + synthetic IIbIIIa receptor antagonist instead of cytochalasin D)...
May 2017: Scandinavian Journal of Clinical and Laboratory Investigation
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