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ROTEM fibrinogen

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https://www.readbyqxmd.com/read/27902939/factor-xiii-deficiency-enhances-thrombin-generation-due-to-impaired-fibrin-polymerization-an-effect-corrected-by-factor-xiii-replacement
#1
Hanna H Pitkänen, Annukka Jouppila, Marja Lemponen, Minna Ilmakunnas, Jouni Ahonen, Riitta Lassila
INTRODUCTION: Factor XIII (FXIII) cross-links fibrin, completing blood coagulation. Congenital FXIII deficiency is managed with plasma-derived FXIII (pdFXIII) or recombinant FXIII (rFXIII) concentrates. AIM: As the mechanisms protecting patients with low FXIII levels (<5IU/dL) from spontaneous bleeds remain unknown we assessed the interplay between thrombin generation (TG), fibrin formation and clot kinetics before and after FXIII administration in three patients with FXIII deficiency...
November 16, 2016: Thrombosis Research
https://www.readbyqxmd.com/read/27900590/assessment-of-oxidative-nitrative-modifications-of-plasma-proteins-selected-rotem-parameters-and-kinetics-of-fibrinogen-polymerization-in-patients-with-multiple-myeloma-at-diagnosis
#2
W Nowak, J Treliński, K Chojnowski, J Matczak, M Robak, M Misiewicz, P Nowak
Patients with multiple myeloma (MM) are at increased risk of thrombosis. Growing evidence indicates that oxidative and nitrative modifications of proteins, including fibrinogen, may lead to changes in hemostasis. The study compares samples from patients with MM at diagnosis and healthy volunteers with regard to the oxidative/nitrative modifications of proteins, ROTEM and thrombin-catalyzed fibrin polymerization. The content of carbonyl groups in plasma proteins of patients with MM was significantly higher than in controls (2...
January 2017: Medical Oncology
https://www.readbyqxmd.com/read/27861436/the-association-between-cyanosis-and-thromboelastometry-rotem-in-children-with-congenital-heart-defects-a-retrospective-cohort-study
#3
Marie-Laure Laskine-Holland, Walter H A Kahr, Lynn Crawford-Lean, Tilman Humpl, Osami Honjo, Celeste Foreman, Mehr Jain, James D O'Leary
BACKGROUND: Children with congenital heart defects (CHD) have quantitative and qualitative differences in coagulation compared with healthy children. Secondary to polycythemia and increased deformability of red blood cells, cyanosis may be an important confounding factor for altered whole-blood coagulation in this population with potential implications for interpreting intraoperative thromboelastometry (TEM) for children with CHD undergoing major surgery. The primary aim of the study was to evaluate the association between cyanosis in children with CHD and measures of whole-blood coagulation determined using TEM (ROTEM [Tem International, GmbH, Munich, Germany])...
November 17, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27799172/fibrinogen-supplementation-ex-vivo-increasesclot-firmness-comparable-to-platelet-transfusion-in-thrombocytopenia
#4
B Schenk, A K Lindner, B Treichl, M Bachler, M Hermann, O H Larsen, C Fenger-Eriksen, D Wally, H Tauber, C Velik-Salchner, D Fries
BACKGROUND: Fibrinogen concentrate can improve clot firmness and offers a better safety profile than platelet concentrates. Reduction or avoidance of blood transfusions represents a strategy to reduce associated risks. We investigated whether supplementation of fibrinogen concentrate ex vivo can compensate for clot strength as compared with platelet transfusion in vivo METHODS: One hundred patients in need of platelet transfusion (PT) were enrolled. Blood samples were collected immediately before PT and at 1 h and 24 h after PT...
November 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27777753/coagulative-safety-of-epidural-catheters-after-major-upper-gastrointestinal-surgery-advanced-and-routine-coagulation-analysis-in-38-patients
#5
Owain Thomas, Hampus Rein, Karin Strandberg, Ulf Schött
BACKGROUND: The risk of spinal haematoma in patients receiving epidural catheters is estimated using routine coagulation tests, but guidelines are inconsistent in their recommendations on what to do when results indicate slight hypocoagulation. Postoperative patients are prone to thrombosis, and thromboelastometry has previously shown hypercoagulation in this setting. We aimed to better understand perioperative haemostasis by comparing results from routine and advanced tests, hypothesizing that patients undergoing major upper gastrointestinal surgery would be deficient in vitamin K-dependent coagulation factors because of malnutrition, or hypocoagulative because of accumulation of low molecular weight heparin (LMWH)...
2016: Perioperative Medicine
https://www.readbyqxmd.com/read/27757554/thromboelastometry-guided-fibrinogen-replacement-therapy-in-cardiac-surgery-a-retrospective-observational-study
#6
Francesco Vasques, Luca Spiezia, Alberto Manfrini, Vincenzo Tarzia, Dario Fichera, Paolo Simioni, Gino Gerosa, Carlo Ori, Guido Di Gregorio
This retrospective, observational study compared the impact of a point-of-care rotational thromboelastometry (ROTEM(®)) method versus conventional bleeding management in terms of postoperative (24-h) blood loss, intraoperative and postoperative (24-h) transfusion requirement and length of stay in the postoperative intensive care unit (ICU) in patients undergoing cardiac surgery. Forty consecutive patients undergoing cardiac surgery under ROTEM(®)-guided hemostatic management were enrolled; the control population included 40 selected patients undergoing similar interventions without ROTEM(®) monitoring...
October 18, 2016: Journal of Anesthesia
https://www.readbyqxmd.com/read/27749339/comparison-of-seer-sonorheometry-with-rotational-thromboelastometry-and-laboratory-parameters-in-cardiac-surgery
#7
Julie L Huffmyer, Lucas G Fernandez, Cyrus Haghighian, Abdullah S Terkawi, Danja S Groves
BACKGROUND: The Quantra Hemostasis Analyzer is a novel diagnostic device that uses an ultrasound-based technology, sonic estimation of elasticity via resonance (SEER) sonorheometry, to characterize the dynamic changes in viscoelastic properties of a blood sample during coagulation. Cardiac surgery utilizing cardiopulmonary bypass (CPB) is associated with a significant impact on the coagulation system and can result in perioperative coagulopathy. The aim of this study was to correlate SEER sonorheometry results to corresponding rotational thromboelastometry (ROTEM) and laboratory parameters obtained before, during, and after CPB...
December 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27724970/the-pre-hospital-administration-of-tranexamic-acid-to-patients-with-multiple-injuries-and-its-effects-on-rotational-thrombelastometry-a-prospective-observational-study-in-pre-hospital-emergency-medicine
#8
Nils Kunze-Szikszay, Lennart A Krack, Pauline Wildenauer, Saskia Wand, Tim Heyne, Karoline Walliser, Christopher Spering, Martin Bauer, Michael Quintel, Markus Roessler
BACKGROUND: Hyperfibrinolysis (HF) is a major contributor to coagulopathy and mortality in trauma patients. This study investigated (i) the rate of HF during the pre-hospital management of patients with multiple injuries and (ii) the effects of pre-hospital tranexamic acid (TxA) administration on the coagulation system. METHODS: From 27 trauma patients with pre-hospital an estimated injury severity score (ISS) ≥16 points blood was obtained at the scene and on admission to the emergency department (ED)...
October 10, 2016: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/27722160/monitoring-and-treatment-of-coagulation-disorders-in-end-stage-liver-disease
#9
REVIEW
Fuat H Saner, Carmen Kirchner
BACKGROUND: Patients with end-stage liver disease (ESLD) are assumed to be at high risk of bleeding when undergoing any kind of invasive intervention (any kind of operation, including transplantation or minimally invasive interventions). Both bleeding and thrombosis are associated with a poor outcome. METHODS: A selective literature research was conducted with the following key words: 'cirrhosis', 'coagulation', 'bleeding', 'INR' (international normalized ratio), 'aPTT' (activated partial thromboplastin time), and 'thrombocytopenia'...
August 2016: Visceral Medicine
https://www.readbyqxmd.com/read/27623677/ex-vivo-reversal-of-effects-of-rivaroxaban-evaluated-using-thromboelastometry-and-thrombin-generation-assay
#10
B Schenk, P Würtinger, W Streif, W Sturm, D Fries, M Bachler
BACKGROUND: In major bleeding events, the new direct oral anticoagulants pose a great challenge for physicians. The aim of the study was to test for ex vivo reversal of the direct oral anticoagulant rivaroxaban with various non-specific reversal agents: prothrombin complex concentrate (PCC), activated prothrombin complex concentrate (aPCC), recombinant activated factor VII (rFVIIa), and fibrinogen concentrate (FI). METHODS: Blood was obtained from healthy volunteers and from patients treated with rivaroxaban...
November 2016: British Journal of Anaesthesia
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 haemostatic 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...
September 8, 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27599160/assessment-of-method-reliability-and-determination-of-reference-intervals-for-rotational-thromboelastometry-in-horses
#12
Hannah K Junge, Simone K Ringer, Nathalie Mayer, Colin C Schwarzwald
OBJECTIVES: To assess the measurement reliability of rotational thromboelastometry (ROTEM) measurements in horses, establish reference intervals for healthy horses, and evaluate the relationship between ROTEM variables, hematologic variables, and standard coagulation tests. DESIGN: Prospective observational study. SETTING: University teaching hospital. ANIMALS: Fifty healthy and 10 diseased adult horses. INTERVENTIONS: None...
September 2016: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/27584686/seer-sonorheometry-versus-rotational-thromboelastometry-in-large-volume-blood-loss-spine-surgery
#13
Bhiken I Naik, Marcel E Durieux, Anne Knisely, Juhee Sharma, Vivien C Bui-Huynh, Bhavana Yalamuru, Abdullah S Terkawi, Edward C Nemergut
BACKGROUND: Sonic estimation of elasticity via resonance (SEER) sonorheometry is a novel technology that uses acoustic deformation of the developing clot to measure its viscoelastic properties and extract functional measures of coagulation. Multilevel spine surgery is associated with significant perioperative blood loss, and coagulopathy occurs frequently. The aim of this study was to correlate SEER sonorheometry results with those of equivalent rotation thromboelastometry (ROTEM) and laboratory parameters obtained during deformity correction spine surgery...
December 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27540479/coagulation-during-elective-neurosurgery-with-hydroxyethyl-starch-fluid-therapy-an-observational-study-with-thromboelastometry-fibrinogen-and-factor-xiii
#14
Caroline Ulfsdotter Nilsson, Karin Strandberg, Martin Engström, Peter Reinstrup
BACKGROUND: Several studies have described hypercoagulability in neurosurgery with craniotomy for brain tumor resection. In this study, hydroxyethyl starch (HES) 130/0.42 was used for hemodynamic stabilization and initial blood loss replacement. HES can induce coagulopathy with thromboelastographic signs of decreased clot strength. The aim of this study was to prospectively describe perioperative changes in coagulation during elective craniotomy for brain tumor resection with the present fluid regimen...
2016: Perioperative Medicine
https://www.readbyqxmd.com/read/27506588/in-vitro-effects-of-different-sources-of-fibrinogen-supplementation-on-clot-initiation-and-stability-in-a-model-of-dilutional-coagulopathy
#15
N Schäfer, A Driessen, U Bauerfeind, M Fröhlich, J Ofir, E K Stürmer, M Maegele
OBJECTIVES: To analyse which fibrinogen source may improve coagulation using an in vitro 33% dilutional coagulopathy model. BACKGROUND: Uncritical volume resuscitation in the context of trauma haemorrhage contributes to the iatrogenic arm of the acute trauma-induced coagulopathy through dilution and depletion of coagulation factors, with fibrinogen reaching critical levels first. MATERIALS AND METHODS: By using an experimental model of 33% dilutional coagulopathy, we have analysed which fibrinogen source may exert superior effects on improving haemocoagulative capacities and correcting depleted fibrinogen levels...
August 9, 2016: Transfusion Medicine
https://www.readbyqxmd.com/read/27504630/igm-enriched-immunoglobulin-attenuates-systemic-endotoxin-activity-in-early-severe-sepsis-a-before-after-cohort-study
#16
Saskia Wand, Matthias Klages, Christin Kirbach, Joanna Warszawska, Patrick Meybohm, Kai Zacharowski, Alexander Koch
INTRODUCTION: Sepsis remains associated with a high mortality rate. Endotoxin has been shown to influence viscoelastic coagulation parameters, thus suggesting a link between endotoxin levels and the altered coagulation phenotype in septic patients. This study evaluated the effects of systemic polyspecific IgM-enriched immunoglobulin (IgM-IVIg) (Pentaglobin® [Biotest, Dreieich, Germany]) on endotoxin activity (EA), inflammatory markers, viscoelastic and conventional coagulation parameters...
2016: PloS One
https://www.readbyqxmd.com/read/27496751/targeting-factor-viii-expression-to-platelets-for-hemophilia-a-gene-therapy-does-not-induce-an-apparent-thrombotic-risk-in-mice
#17
C K Baumgartner, J G Mattson, H Weiler, Q Shi, R R Montgomery
BACKGROUND: Targeting FVIII expression to platelets is a promising gene therapy approach for hemophilia A and is successful even in the presence of inhibitors. It is well known that platelets not only play important roles in hemostasis, but also in thrombosis and inflammation. OBJECTIVE: To evaluate whether platelet-FVIII expression might increase the risk for thrombosis and thereby compromise the safety of this approach. METHODS: In this study, platelet-FVIII expressing transgenic mice were examined either in steady state or under prothrombotic conditions induced by inflammation or the factor V Leiden mutation...
August 6, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/27495106/the-thromboelastometric-discrepancy-between-septic-and-trauma-induced-disseminated-intravascular-coagulation-diagnosed-by-the-scoring-system-from-the-japanese-association-for-acute-medicine
#18
Hiroyuki Koami, Yuichiro Sakamoto, Ryota Sakurai, Miho Ohta, Hisashi Imahase, Mayuko Yahata, Mitsuru Umeka, Toru Miike, Futoshi Nagashima, Takashi Iwamura, Kosuke Chris Yamada, Satoshi Inoue
The aim of this study is to evaluate the hematological differences between septic and traumatic disseminated intravascular coagulation (DIC) using the rotational thromboelastometry (ROTEM).This retrospective study includes all sepsis or severe trauma patients transported to our emergency department who underwent ROTEM from 2013 to 2014. All patients were divided into 2 groups based on the presence of DIC diagnosed by the Japanese Association for Acute Medicine (JAAM) DIC score. We statistically analyzed the demographics, clinical characteristics, laboratory data, ROTEM findings (EXTEM and FIBTEM), and outcome...
August 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27474337/predictive-value-of-intraoperative-thromboelastometry-for-the-risk-of-perioperative-excessive-blood-loss-in-infants-and-children-undergoing-congenital-cardiac-surgery-a-retrospective-analysis
#19
Eunhee Kim, Haeng Seon Shim, Won Ho Kim, Sue-Young Lee, Sun-Kyung Park, Ji-Hyuk Yang, Tae-Gook Jun, Chung Su Kim
OBJECTIVE: Laboratory hemostatic variables and parameters of rotational thromboelastometry (ROTEM) were evaluated for their ability to predict perioperative excessive blood loss (PEBL) after congenital cardiac surgery. DESIGN: Retrospective and observational. SETTING: Single, large university hospital. PARTICIPANTS: The study comprised 119 children younger than 10 years old undergoing congenital cardiac surgery with cardiopulmonary bypass (CPB)...
October 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27467983/does-whole-blood-coagulation-analysis-reflect-developmental-haemostasis
#20
Hanne Berg Ravn, Jo Bnding Andreasen, Anne-Mette Hvas
Developmental haemostasis has been well documented over the last 3 decades and age-dependent reference ranges have been reported for a number of plasmatic coagulation parameters. With the increasing use of whole blood point-of-care tests like rotational thromboelastometry (ROTEM) and platelet function tests, an evaluation of age-dependent changes is warranted for these tests as well. We obtained blood samples from 149 children, aged 1 day to 5.9 years, and analysed conventional plasmatic coagulation tests, including activated partial prothrombin time, prothrombin time, and fibrinogen (functional)...
July 27, 2016: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
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