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Hyperfibrinolysis

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https://www.readbyqxmd.com/read/27890816/pathophysiology-of-hemophilic-arthropathy-and-potential-targets-for-therapy
#1
REVIEW
Astrid E Pulles, Simon C Mastbergen, Roger E G Schutgens, Floris P J G Lafeber, Lize F D van Vulpen
Hemophilia is a congenital clotting factor deficiency characterized by spontaneous and trauma-related bleeding. Spontaneous bleeding shows a predilection for joints, and repeated hemarthroses lead to a disabling condition called hemophilic arthropathy. Treatment of this condition consists of preventing joint bleeding on the one hand and orthopedic surgery as a last resort on the other. Up till now, there is no disease modifying therapy available to fill the gap between these extremes. This review provides an overview of the pathogenesis of hemophilic arthropathy in order to identify potential targets for therapy...
November 24, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27889194/usefulness-of-thromboelastography-in-the-detection-and-management-of-tissue-plasminogen-activator-associated-hyperfibrinolysis
#2
Francesca Rosafio, Laura Vandelli, Guido Bigliardi, Francesco Cavallieri, Maria Luisa Dell'Acqua, Livio Picchetto, Andrea Zini
Rotation thromboelastometry is a viscoelastometric method that provides a rapid assessment of a patient's hemostatic processes in emergency settings, allowing prompt identification of specific coagulation abnormalities. Its results thus might guide targeted replacement therapy in hemorrhagic conditions, in case of platelet or coagulation factor deficiency, or hyperfibrinolysis, which is difficult to identify otherwise. Although currently used in emergency and traumatic surgery, there are limited data about thromboelastometry in ischemic stroke, particularly in monitoring the coagulative response to recombinant tissue plasminogen activator after intravenous thrombolysis (IVT)...
November 23, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27824218/coagulopathy-in-sepsis-a-new-look-at-an-old-problem
#3
Małgorzata Lipinska-Gediga
Sepsis is a life-threatening condition characterized by a systemic response to microbial infection. Despite considerable progress in intensive care medicine, the incidence of sepsis and the number of sepsis-related deaths are increasing world-wide. There is a complex relationship between the coagulation, immune and inflammatory systems in sepsis. Activation of the coagulation cascade in sepsis is a result of a pathogen invasion and is a part of a immuno-inflammatory host response. In sepsis, the close cooperation of the immune and coagulation systems through cross signalling results in immunothrombosis...
November 8, 2016: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/27805439/effect-of-aminocaproic-acid-on-clot-strength-and-clot-lysis-of-canine-blood-determined-by-use-of-an-in-vitro-model-of-hyperfibrinolysis
#4
Jamie C Brown, Benjamin M Brainard, Daniel J Fletcher, Ben Nie, Robert D Arnold, Chad W Schmiedt
OBJECTIVE To determine pharmacodynamic and pharmacokinetic profiles of aminocaproic acid (ACA) by use of a thromboelastography (TEG)-based in vitro model of hyperfibrinolysis and high-performance liquid chromatography-mass spectrometry. ANIMALS 5 healthy adult dogs. PROCEDURES A single dose of injectable ACA (20, 50, or 100 mg/kg) or an ACA tablet (approximately 100 mg/kg) was administered orally. Blood samples were collected at 0, 15, 30, 45, 60, 90, 120, and 240 minutes after ACA administration for pharmacokinetic analysis...
November 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27779597/abnormalities-in-fibrinolysis-at-the-time-of-admission-are-associated-with-dvt-mortality-and-disability-in-a-pediatric-trauma-population
#5
Christine M Leeper, Matthew D Neal, Christine McKenna, Jason Sperry, Barbara A Gaines
BACKGROUND: Abnormalities in fibrinolysis are common and associated with increased mortality in injured adults. While hyperfibrinolysis (HF) and fibrinolysis shutdown (SD) are potential prognostic indicators and treatment targets in adults, these derangements are not well-described in a pediatric trauma cohort. METHODS: Prospective analysis of highest level trauma activations age 0-18 presenting to our academic center between 6/1/2015-7/31/2016 with admission rapid thromboelastogram (TEG)...
October 25, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27779595/sympathoadrenal-activation-and-endotheliopathy-are-drivers-of-hypocoagulability-and-hyperfibrinolysis-in-trauma-a-prospective-observational-study-of-404-severely-injured-patients
#6
Sisse R Ostrowski, Hanne H Henriksen, Jakob Stensballe, Mikkel Gybel-Brask, Jessica C Cardenas, Lisa A Baer, Bryan A Cotton, John B Holcomb, Charles E Wade, Pär I Johansson
BACKGROUND: One third of severely injured patients present with a laboratory based diagnosis of coagulopathy. This study investigated clinical and biomarker profile of patients with rapid TEG (rTEG) coagulopathy hypothesizing that sympathoadrenal activation and endothelial damage were drivers of this condition. METHODS: Prospective observational study of 404 trauma patients admitted to a Level 1 US Trauma Center. Patients with admission rTEG and plasma measurements of catecholamines (adrenaline, noradrenaline) and biomarkers reflecting endothelial activation/damage (syndecan-1, thrombomodulin, sE-selectin, sVE-cadherin, nucleosomes) were included...
October 25, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27765582/major-liver-resection-systemic-fibrinolytic-activity-and-the-impact-of-tranexamic-acid
#7
Paul J Karanicolas, Yulia Lin, Jordan Tarshis, Calvin H L Law, Natalie G Coburn, Julie Hallet, Barto Nascimento, Janusz Pawliszyn, Stuart A McCluskey
BACKGROUND: Hyperfibrinolysis may occur due to systemic inflammation or hepatic injury that occurs during liver resection. Tranexamic acid (TXA) is an antifibrinolytic agent that decreases bleeding in various settings, but has not been well studied in patients undergoing liver resection. METHODS: In this prospective, phase II trial, 18 patients undergoing major liver resection were sequentially assigned to one of three cohorts: (i) Control (no TXA); (ii) TXA Dose I - 1 g bolus followed by 1 g infusion over 8 h; (iii) TXA Dose II - 1 g bolus followed by 10 mg/kg/hr until the end of surgery...
October 17, 2016: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
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/27716278/a-systematic-review-on-the-rotational-thrombelastometry-rotem%C3%A2-values-for-the-diagnosis-of-coagulopathy-prediction-and-guidance-of-blood-transfusion-and-prediction-of-mortality-in-trauma-patients
#9
Precilla V Veigas, Jeannie Callum, Sandro Rizoli, Bartolomeu Nascimento, Luis Teodoro da Luz
INTRODUCTION: Viscoelastic assays have been promoted as an improvement over traditional coagulation tests in the management of trauma patients. Rotational thromboelastometry (ROTEM®) has been used to diagnose coagulopathy and guide hemostatic therapy in trauma. This systematic review of clinical studies in trauma investigates the ROTEM® parameters thresholds used for the diagnosing coagulopathy, predicting and guiding transfusion and predicting mortality. METHODS: Systematic literature search was performed using MEDLINE, EMBASE and Cochrane databases...
October 3, 2016: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/27680483/utility-of-measurement-of-serum-lactate-in-diagnosis-of-coagulopathy-associated-with-peripheral-circulatory-insufficiency-retrospective-evaluation-using-thromboelastometry-from-a-single-center-in-japan
#10
Hiroyuki Koami, Yuichiro Sakamoto, Ryota Sakurai, Miho Ohta, Akiko Goto, Hisashi Imahase, Mayuko Yahata, Mitsuru Umeka, Toru Miike, Futoshi Nagashima, Takashi Iwamura, Kosuke Chris Yamada, Satoshi Inoue
Recently, serum lactate level rather than systolic blood pressure (sBP) has been widely used to diagnose peripheral circulatory insufficiency, which often leads to coagulopathy with systemic inflammation. However, most of the reported disorders were examined by plasma samples. The aim of this study was to evaluate the utility of serum lactate for detecting coagulopathy with circulatory failure by using thromboelastometry as well as standard coagulation test. 192 adult patients transported to our hospital between January 2013 and September 2014 were enrolled in this retrospective study...
2016: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/27679536/disseminated-intravascular-coagulation-with-the-fibrinolytic-phenotype-predicts-the-outcome-of-patients-with-out-of-hospital-cardiac-arrest
#11
Takeshi Wada, Satoshi Gando, Yuichi Ono, Kunihiko Maekawa, Kenichi Katabami, Mineji Hayakawa, Atsushi Sawamura
BACKGROUND: We tested the hypothesis that disseminated intravascular coagulation (DIC) during the early phase of post-cardiopulmonary resuscitation (CPR) is associated with systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS) and affects the outcome of out-of-hospital cardiac arrest (OHCA) patients. METHODS: A review of the computer-based medical records of OHCA patients was retrospectively conducted and included 388 patients who were divided into DIC and non-DIC patients based on the Japanese Association for Acute Medicine DIC diagnostic criteria...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27566811/management-of-bleeding-in-vascular-surgery
#12
REVIEW
Y E Chee, S E Liu, M G Irwin
Management of acute coagulopathy and blood loss during major vascular procedures poses a significant haemostatic challenge to anaesthetists. The acute coagulopathy is multifactorial in origin with tissue injury and hypotension as the precipitating factors, followed by dilution, hypothermia, acidemia, hyperfibrinolysis and systemic inflammatory response, all acting as a self-perpetuating spiral of events. The problem is confounded by the high prevalence of antithrombotic agent use in these patients and intraoperative heparin administration...
September 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27555151/prophylactic-use-of-tranexamic-acid-combined-with-thrombelastogram-guided-coagulation-management-may-reduce-blood-loss-and-allogeneic-transfusion-in-pediatric-hemispherectomy-case-series
#13
Wei Xiao, Wenya Fu, Tianlong Wang, Lei Zhao
Hemispherectomy is an established surgical procedure to treat medically refractory epilepsy caused by diffuse hemispheric diseases. The most common complication of hemispherectomy is intraoperative bleeding. Perioperative allogeneic blood transfusion increases mortality and morbidity in pediatric patients. Etiologies of massive blood loss during hemispherectomy include intraoperative diffuse vascular damage, antileptic drugs induced coagulation dysfunction, hyperfibrinolysis and dilutional coagulopathy. Great efforts should be made to minimize the need of blood transfusion...
September 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27531677/hyperfibrinolysis-increases-blood-brain-barrier-permeability-by-a-plasmin-and-bradykinin-dependent-mechanism
#14
Oscar A Marcos-Contreras, Sara Martinez de Lizarrondo, Isabelle Bardou, Cyrille Orset, Mathilde Pruvost, Antoine Anfray, Yvann Frigout, Yannick Hommet, Laurent Lebouvier, Joan Montaner, Denis Vivien, Maxime Gauberti
Hyperfibrinolysis is a systemic condition occurring in various clinical disorders such as trauma, liver cirrhosis or leukemia. Apart from increased bleeding tendency, the pathophysiological consequences of hyperfibrinolysis remain largely unknown. Our present aim was to develop an experimental model of hyperfibrinolysis and to study its effects on the homeostasis of the blood brain barrier (BBB). We induced a sustained hyperfibrinolytic state in mice by hydrodynamic transfection of a plasmid encoding for tissue-type plasminogen activator (tPA)...
August 16, 2016: Blood
https://www.readbyqxmd.com/read/27484224/endothelial-dysfunction-in-resuscitated-cardiac-arrest-endo-rca-safety-and-efficacy-of-low-dose-prostacyclin-administration-and-blood-pressure-target-in-addition-to-standard-therapy-as-compared-to-standard-therapy-alone-in-post-cardiac-arrest-syndrome-patients
#15
Anna Sina P Meyer, Sisse R Ostrowski, Jesper Kjaergaard, Pär I Johansson, Christian Hassager
BACKGROUND: Morbidity and mortality following initial survival of cardiac arrest remain high despite great efforts to improve resuscitation techniques and post-resuscitation care, in part due to the ischemia-reperfusion injury secondary to the restoration of the blood circulation. Patients resuscitated from cardiac arrest display evidence of endothelial injury and coagulopathy (hypocoagulability, hyperfibrinolysis), which in associated with poor outcome. Recent randomized controlled trials have revealed that treatment with infusion of prostacyclin reduces endothelial damage after major surgery and AMI...
2016: Trials
https://www.readbyqxmd.com/read/27477022/bleeding-related-to-disturbed-fibrinolysis
#16
REVIEW
Krasimir Kolev, Colin Longstaff
The components and reactions of the fibrinolysis system are well understood. The pathway has fewer reactants and interactions than coagulation, but the generation of a complete quantitative model is complicated by the need to work at the solid-liquid interface of fibrin. Diagnostic tools to detect disease states due to malfunctions in the fibrinolysis pathway are also not so well developed as is the case with coagulation. However, there are clearly a number of inherited or acquired pathologies where hyperfibrinolysis is a serious, potentially life-threatening problem and a number of antifibrinolytc drugs are available to treat hyperfibrinolysis...
October 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27468014/pharmacokinetic-study-of-oral-%C3%AE%C2%B5-aminocaproic-acid-in-the-northern-elephant-seal-mirounga-angustirostris
#17
Sarrah Kaye, Shawn Johnson, Robert D Arnold, Ben Nie, Joshua T Davis, Frances Gulland, Noha Abou-Madi, Daniel J Fletcher
ε-Aminocaproic acid (EACA) is a lysine analogue antifibrinolytic drug used to treat bleeding disorders in humans and domestic animals. Its use in zoological medicine is rare, and dosage is anecdotal. One possible application of EACA is to treat bleeding associated with prepatent Otostrongylus arteritis in Northern elephant seals ( Mirounga angustirostris ) presenting to wildlife rehabilitation centers. This study used an in vitro model of hyperfibrinolysis and a thromboelastograph-based assay to estimate the therapeutic plasma concentration of EACA in elephant seals (85 μg/ml, 95% confidence interval = 73...
June 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/27468009/effect-of-%C3%AE%C2%B5-aminocaproic-acid-on-fibrinolysis-in-plasma-of-asian-elephants-elephas-maximus
#18
Sarrah Kaye, Noha Abou-Madi, Daniel J Fletcher
ε-Aminocaproic acid (EACA) is a lysine analogue antifibrinolytic drug used to treat bleeding disorders in humans and domestic animals. Use in zoological medicine is rare and dose recommendations are anecdotal, but EACA may be a valuable therapeutic option for bleeding disorders in exotic species, including Asian elephants ( Elephas maximus ). This study used an in vitro model of hyperfibrinolysis and a thromboelastograph-based assay to estimate the therapeutic plasma concentration of EACA in Asian elephants (61...
June 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/27358774/massive-haemorrhage-in-liver-transplantation-consequences-prediction-and-management
#19
REVIEW
Stuart Cleland, Carlos Corredor, Jia Jia Ye, Coimbatore Srinivas, Stuart A McCluskey
From its inception the success of liver transplantation has been associated with massive blood loss. Massive transfusion is classically defined as > 10 units of red blood cells within 24 h, but describing transfusion rates over a shorter period of time may reduce the potential for survival bias. Both massive haemorrhage and transfusion are associated with increased risk of mortality and morbidity (need for dialysis/surgical site infection) following liver transplantation although causality is difficult to prove due to the observational design of most trials...
June 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/27320762/a-patient-with-pancytopenia-intractable-epistaxis-and-metastatic-prostate-cancer-how-correct-diagnosis-of-primary-hyperfibrinolysis-helps-to-stop-the-bleeding
#20
Mohammad A S Jafri, Justine V Cohen, Melissa A Much, Daniel P Petrylak, Nikolai A Podoltsev
No abstract text is available yet for this article.
May 27, 2016: Clinical Genitourinary Cancer
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