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Thromboelastography

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https://www.readbyqxmd.com/read/28097681/thromboelastography-in-dogs-with-chronic-hepatopathies
#1
W Fry, C Lester, N M Etedali, S Shaw, A DeLaforcade, C R L Webster
BACKGROUND: The coagulation status of dogs with liver disease is difficult to predict using conventional coagulation testing. HYPOTHESIS/OBJECTIVES: To evaluate thromboelastography (TEG) results and associations with conventional coagulation results and indicators of disease severity and prognosis in dogs with chronic hepatopathies (CH). ANIMALS: Twenty-one client-owned dogs. METHODS: Dogs with CH were prospectively (10 dogs) and retrospectively (11 dogs) enrolled from 2008 to 2014...
January 18, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28076307/evaluation-of-the-greiner-bio-one-serum-separator-bca-fast-clot-tube
#2
Goce Dimeski, Julie Johnston, Paul P Masci, Kong-Nan Zhao, Nigel Brown
BACKGROUND: Current commercial tubes have difficulties in producing "true" serum from all blood samples even within the recommended clotting times. Hence, Becton Dickinson (BD) and now Greiner have produced tubes containing thrombin as the procoagulant to reduce the clotting time and increase the possibility of producing serum from anticoagulated blood samples. METHODS: The Greiner BCA Fast Clot (GBBCAFC) tube was evaluated in a hospital environment using 40 participants, (30 healthy and 10 undergoing renal dialysis) for 32 analytes against the Greiner lithium heparin tube and the BD Rapid Serum Tubes (BD RST) tube measured on Beckman DxC 800 and DxI 800 analyzers...
January 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28072942/introduction-of-a-simple-algorithm-improves-thromboelastography-guided-blood-product-use-during-cardiac-surgery
#3
N B Spath, H M Lala, S C Robinson
No abstract text is available yet for this article.
January 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/28070995/haplotype-of-platelet-receptor-p2ry12-gene-is-associated-with-residual-clopidogrel-on-treatment-platelet-reactivity
#4
Xiao-Yan Nie, Jun-Lei Li, Yong Zhang, Yang Xu, Xue-Li Yang, Yu Fu, Guang-Kai Liang, Yun Lu, Jian Liu, Lu-Wen Shi
OBJECTIVE: To investigate a possible association between common variations of the P2RY12 and the residual clopidogrel on-treatment platelet reactivity after adjusting for the influence of CYP2C19 tested by thromboelastography (TEG). METHODS: One hundred and eighty patients with acute coronary syndrome (ACS) treated with clopidogrel and aspirin were included and platelet function was assessed by TEG. Five selected P2RY12 single nucleotide polymorphisms (SNPs; rs6798347, rs6787801, rs6801273, rs6785930, and rs2046934), which cover the common variations in the P2RY12 gene and its regulatory regions, and three CYP2C19 SNPs ((*)2,(*)3,(*)17) were genotyped and possible haplotypes were analyzed...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28062209/thromboelastogram-does-not-detect-pre-injury-anticoagulation-in-acute-trauma-patients
#5
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/28058211/organ-transplantation-and-drug-eluting-stents-perioperative-challenges
#6
REVIEW
Aparna Dalal
Patients listed for organ transplant frequently have severe coronary artery disease (CAD), which may be treated with drug eluting stents (DES). Everolimus and zotarolimus eluting stents are commonly used. Newer generation biolimus and novolimus eluting biodegradable stents are becoming increasingly popular. Patients undergoing transplant surgery soon after the placement of DES are at increased risk of stent thrombosis (ST) in the perioperative period. Dual antiplatelet therapy (DAPT) with aspirin and a P2Y12 inhibitor such as clopidogrel, prasugrel and ticagrelor is instated post stenting to decrease the incident of ST...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28052313/thromboelastography-teg-or-rotational-thromboelastometry-rotem-to-monitor-haemostatic-treatment-in-bleeding-patients-a-systematic-review-with-meta-analysis-and-trial-sequential-analysis
#7
REVIEW
A Wikkelsø, J Wetterslev, A M Møller, A Afshari
Coagulopathy and severe bleeding are associated with high mortality. We evaluated haemostatic treatment guided by the functional viscoelastic haemostatic assays, thromboelastography or rotational thromboelastometry in bleeding patients. We searched for randomised, controlled trials irrespective of publication status, publication date, blinding status, outcomes published or language from date of inception to 5 January 2016 in six bibliographic databases. We included 17 trials (1493 participants), most involving cardiac surgery...
January 4, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28042854/in-vitro-anti-thrombotic-activity-of-extracts-from-blacklip-abalone-haliotis-rubra-processing-waste
#8
Hafiz Ansar Rasul Suleria, Barney M Hines, Rama Addepalli, Wei Chen, Paul Masci, Glenda Gobe, Simone A Osborne
Waste generated from the processing of marine organisms for food represents an underutilized resource that has the potential to provide bioactive molecules with pharmaceutical applications. Some of these molecules have known anti-thrombotic and anti-coagulant activities and are being investigated as alternatives to common anti-thrombotic drugs, like heparin and warfarin that have serious side effects. In the current study, extracts prepared from blacklip abalone (Haliotis rubra) processing waste, using food grade enzymes papain and bromelain, were found to contain sulphated polysaccharide with anti-thrombotic activity...
December 31, 2016: Marine Drugs
https://www.readbyqxmd.com/read/28039526/platelet-inhibition-in-shunted-infants-on-aspirin-at-short-and-midterm-follow-up
#9
Dongngan T Truong, Joyce T Johnson, David K Bailly, Jason R Clawson, Xiaoming Sheng, Phillip T Burch, Madolin K Witte, L LuAnn Minich
There are few data to guide aspirin therapy to prevent shunt thrombosis in infants. We aimed to determine if aspirin administered at conventional dosing in shunted infants resulted in ≥50% arachidonic acid (AA) inhibition in short and midterm follow-up using thromboelastography with platelet mapping (TEG-PM) and to describe bleeding and thrombotic events during follow-up. We performed a prospective observational study of infants on aspirin following Norwood procedure, aortopulmonary shunt alone, or cavopulmonary shunt surgery...
December 30, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/28017804/persistent-fibrinolysis-shutdown-associated-with-increased-mortality-in-severely-injured-trauma-patients
#10
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 prior studies have investigated the incidence of persistent fibrinolysis or its association with mortality. We test the hypothesis that persistent fibrinolysis shutdown is associated with mortality in critically ill trauma patients. STUDY DESIGN: Thromboelastography was performed upon ICU admission in 181 adult trauma patients and at 1-week in a subset of 78 patients...
December 22, 2016: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28004055/thrombocytopathy-leading-to-impaired-in-vivo-haemostasis-and-thrombosis-in-platelet-type-von-willebrand-disease
#11
Harmanpreet Kaur, Kathryn Corscadden, Jerry Ware, Maha Othman
Platelet defects due to hyper-responsive GPIbα causing enhanced VWF interaction, counter-intuitively result in bleeding rather than thrombosis. The historical explanation of platelet/VWF clearance fails to explain mechanisms of impaired haemostasis particularly in light of reported poor platelet binding to fibrinogen. This study aimed to evaluate the defects of platelets with hyper-responsive GPIbα and their contribution to impaired in vivo thrombosis. Using the PT-VWD mouse model, platelets from the hTg(G233V) were compared to control hTg(WT) mice...
December 22, 2016: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28002635/heparinase-modified-thromboelastography-in-cats
#12
Benoît Cuq, Marilyn E Dunn, Christian Bédard
BACKGROUND: Evaluation of underlying hemostatic function is challenging when feline patients are receiving an anticoagulant medication. Discontinuing the anticoagulant to obtain accurate results for hemostatic testing may lead to thrombotic complications. The addition of heparinase to blood samples may mitigate the effects of exogenous heparin and allow hemostatic testing. METHODS: Tissue factor (TF)-activated thromboelastography (TEG) was performed using citrated whole blood from 19 cats...
December 21, 2016: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/27994260/a-case-of-successful-thromboelastographic-guided-resuscitation-after-postpartum-hemorrhage-and-cardiac-arrest
#13
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/27978499/coagulation-in-acutely-ill-patients-with-severe-chronic-liver-disease-insights-from-thromboelastography
#14
Patryck Lloyd-Donald, Abhinav Vasudevan, Peter Angus, Paul Gow, Johan Mårtensson, Neil Glassford, Glenn M Eastwood, Graeme K Hart, Rinaldo Bellomo
BACKGROUND AND AIMS: There is controversy about the true coagulation state of acutely ill patients with chronic liver disease (CLD) due to simultaneous pro- and anticoagulant factor deficits and limitations of conventional coagulation tests (CCTs). Thromboelastography (TEG) may provide more physiologically relevant insights. METHODS: In acutely ill patients with severe (Child-Pugh C) CLD, we conducted a prospective observational study of daily coagulation assessment with both CCTs and TEG...
November 4, 2016: Journal of Critical Care
https://www.readbyqxmd.com/read/27977637/genetic-polymorphism-of-cyp2c19-and-inhibitory-effects-of-ticagrelor-and-clopidogrel-towards-post-percutaneous-coronary-intervention-pci-platelet-aggregation-in-patients-with-acute-coronary-syndromes
#15
Peng Dong, Xinchun Yang, Suyan Bian
BACKGROUND The aim of this study was to observe the effects of genetic polymorphism of CYP2C19 on inhibitory effects of ticagrelor (Tic) and clopidogrel (Clo) towards post-percutaneous coronary intervention (PCI) platelet aggregation (IPA) and major cardiovascular events (MACE) in patients with acute coronary syndromes (ACS). MATERIAL AND METHODS From August 2013 to March 2014, 166 patients with ACS undergoing PCI were selected. The patients were randomly grouped into the Tic group and the Clo group. IPA was detected by thromboelastography (TEG) at 1 week after taking the pills...
December 15, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27974342/use-of-thromboelastography-in-the-management-of-liver-cirrhosis-and-accelerated-intravascular-coagulation-and-fibrinolysis-aicf
#16
Thomas Joseph Peterson, Allison Margaret Brown Webb, Benjamin Samuel Vipler
In the presented case, the authors describe an obese middle-aged man that presented to the emergency department for persistent oedema, scleral icterus and fatigue. He was admitted to the hospital and diagnosed with liver cirrhosis via transjugular liver biopsy. He continued to bleed from the biopsy site for 5 days from accelerated intravascular coagulation and fibrinolysis (AICF) requiring multiple transfusions of packed red blood cells, fresh-frozen plasma and cryoprecipitate. The authors then used thromboelastography (TEG) to further characterise the patient's coagulopathy, which revealed platelet inhibition...
December 14, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27940453/perioperative-management-of-the-bleeding-patient
#17
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/27935888/-effect-of-angioprotective-therapy-with-bioflavonoids-on-endothelial-dysfunction-in-patients-with-acute-venous-thromboses
#18
A Yu Bryushkov, P V Ershov, N A Sergeeva, V Yu Bogachev
The study was aimed at evaluating a possibility of correcting endothelial dysfunction by means of angioprotective therapy with natural-origin bioflavonoids in patients presenting with acute venous thromboses. Ours was an open comparative prospective study including a total of thirty 34-to-60-year-old patients suffering from lower limb deep vein thrombosis. The patients were subdivided into two groups. The Study Group was composed of 15 patients receiving on the background of anticoagulant therapy with direct thrombin inhibitors (dabigatran etexilate at a daily dose of 300 mg) natural-origin angioprotectors (red grape leaf extract)...
2016: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/27935164/kaolin-activated-thromboelastography-and-standard-coagulation-assays-in-cyanotic-and-acyanotic-infants-undergoing-complex-cardiac-surgery-a-prospective-cohort-study
#19
Alessandra Rizza, Zaccaria Ricci, Chiara Pezzella, Isabella Favia, Giovina Di Felice, Marco Ranucci, Paola Cogo
BACKGROUND AND AIMS: Several studies report the use of thromboelatography (TEG) to monitor coagulation in pediatric cardiac surgery. The aim of this study was to compare baseline and intraoperative TEG, TEG-functional fibrinogen, and standard coagulation assays in children with cyanotic and acyanotic congenital heart disease (CHD) undergoing cardiac surgery. METHODS: This is a prospective observational study of 63 children aged <24 months undergoing cardiac surgery with cardiopulmonary bypass (CPB)...
February 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/27928886/f376a-m388a-solulin-a-new-promising-antifibrinolytic-for-severe-haemophilia-a
#20
J Parcq, K U Petersen, A Borel-Derlon, P Gautier, M Ebel, D Vivien, Y Repessé
INTRODUCTION: Haemophilia is a major bleeding disorder due to a deficiency of procoagulant factor VIII (type A) or IX (type B). The treatment is substitutive and based on infusion of factor concentrates. Main limitations of this therapy are cost, short factor half-life and the development of inhibitors (up to 30% of severe HA patients). An important aggravating factor of haemophilia is due to a premature fibrinolysis, directing attention to the therapeutic potential of suitable antifibrinolytics...
December 8, 2016: Haemophilia: the Official Journal of the World Federation of Hemophilia
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