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Coagulation & Hemostasis

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https://www.readbyqxmd.com/read/28820407/-evaluation-of-parameters-of-hemostasis-in-the-third-trimester-in-pregnant-women-with-congen%C3%A4-tal-hemorrhagic-diathesis
#1
L Rzaguliyeva, G Afandiyeva, N Malikqasımova
The aim is to study the coagulogram indices in the III trimester of pregnancy in women with hemophilia and von Willebrand disease. Twenty-seven pregnant women with hereditary coagulopathies of mild and moderate form (mean age 27.9±3.3 years) in the third trimester of pregnancy were examined. Of the examined 12 women - carriers of hemophilia A and B, 15 - with Willebrand disease (BV). Clinico-laboratory examination, clinical and biochemical blood tests were carried out. Coagulologic examination was performed on 17 parameters...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28815651/peptide-mimetic-drugs-for-modulating-thrombosis-and-hemostasis
#2
Kimberly Nellenbach, Ashley C Brown
Preclinical Research Hemostasis is the complex physiological process that stems bleeding at an injury site while simultaneously maintaining unobstructed circulation in other areas of the body. This system is kept in balance with finely tuned regulation by pro- and antithrombotic agents. When this balance is thrown out of equilibrium, uncontrolled bleeding, or thrombotic complications can occur. Because of the high number of hemostatic disorders, researchers are continually searching for improved technologies for controlling coagulation...
August 16, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28811051/patient-blood-management-in-the-intensive-care-unit
#3
REVIEW
Aryeh Shander, Mazyar Javidroozi, Gregg Lobel
Patient Blood Management underscores a fundamental shift from a product-centered approach to a patient-centric approach through timely application of evidence-based medical and surgical concepts designed to maintain hemoglobin concentration, optimize hemostasis, and minimize blood loss in an effort to improve patient outcome. In this concept, allogeneic blood transfusion is not viewed as the treatment of default for anemic patients, but one among many treatment modalities that should be weighed based on its merits-potentials risks and benefits-for the individual patient in the context of other alternatives...
July 31, 2017: Transfusion Medicine Reviews
https://www.readbyqxmd.com/read/28804851/thrombin-generation-assays-tgas
#4
Gian Luca Salvagno, Erik Berntorp
In recent years, there has been a revival of interest in a time-honored tool of the clotting trade: the thrombin generation curve or thrombin generation (TG) assay (TGA) as we now call it. Thrombin generation is a key coagulation process that determines the extent of a hemostatic plug or a thrombotic process. The recent development of newer tests based on the continuous registration of TG under in vitro conditions that mimic more closely what occurs in vivo prompted us to reinvestigate the balance between procoagulants and anticoagulants in patients...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804836/assessment-of-factor-xiii
#5
László Muszbek, Éva Katona, Adrienne Kerényi
Blood coagulation factor XIII (FXIII) is essential for maintaining hemostasis. The absence of FXIII results in severe bleeding diathesis, which without prophylaxis frequently leads to fatal bleeding. As the usual hemostasis screening tests remain normal, the diagnosis of FXIII deficiency needs specific tests. Here, we describe FXIII activity determination by the ammonia release assay, which is the first-line test in the diagnostic algorithm for FXIII deficiency. The method for another activity test, the undeservedly rarely used fibrin cross-linking assay, is also presented...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28802974/characteristics-of-thrombin-generation-in-a-fulminant-porcine-sepsis-model
#6
Judit Tóth, Ildikó Beke Debreceni, Ádám Deák, Katalin Pető, Mariann Berhés, Endre Hajdú, Judit Szabó, Norbert Németh, Béla Fülesdi, János Kappelmayer
INTRODUCTION: The activation of blood coagulation has been demonstrated in most cases of sepsis, however previous studies in humans could not detect hypercoagulability with global hemostasis assays. In a fulminant porcine sepsis model we analysed coagulation screening tests and thrombin generation to evaluate hemostatic alterations. MATERIALS AND METHODS: Live Escherichia coli bacteria were inoculated to female pigs and prothrombin time, activated partial thromboplastin time, thrombin time and fibrinogen were measured by coagulometry...
August 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28795966/the-coagulation-profile-of-end-stage-liver-disease-and-considerations-for-intraoperative-management
#7
Katherine T Forkin, Douglas A Colquhoun, Edward C Nemergut, Julie L Huffmyer
The coagulopathy of end-stage liver disease results from a complex derangement in both anticoagulant and procoagulant processes. With even minor insults, cirrhotic patients experience either inappropriate bleeding or clotting, or even both simultaneously. The various phases of liver transplantation along with fluid and blood product administration may contribute to additional disturbances in coagulation. Thus, anesthetic management of patients undergoing liver transplantation to improve hemostasis and avoid inappropriate thrombosis in the perioperative environment can be challenging...
August 8, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28774659/significance-of-a-soft-coagulation-system-with-monopolar-electrode-for-hepatectomy-a-retrospective-two-institution-study-by-propensity-analysis
#8
Takeomi Hamada, Atsushi Nanashima, Koichi Yano, Yorihisa Sumida, Masahide Hiyoshi, Naoya Imamura, Shuichi Tobinaga, Yuki Tsuchimochi, Shinsuke Takeno, Yoshiro Fujii, Takeshi Nagayasu
BACKGROUND: The VIO soft-coagulation system (VIO) with a monopolar electrode is a novel hemostatic device that provides hemostasis by superficial contact at the bleeding site without carbonization. Because heat injury remains a concern, surgical records and postoperative liver dysfunction were retrospectively evaluated in a cohort study. METHODS: Between September 2010 and March 2016, 322 patients underwent hepatectomy in which hemostatic devices were used at two institutions...
July 31, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28755919/use-of-laser-in-avm-surgery
#9
Cenzato Marco, Dones Flavia, Marcati Eleonora, Debernardi Alberto, Scerrati Alba, Piparo Maurizio
BACKGROUND: AVM surgery is particularly demanding as for the bleeding control of small deep white matter vessels during and after the removal of the nidus, this representing probably one of the most critical moments of AVMs surgery. OBJECTIVE: of the present manuscript is to describe a useful technique based on the use of tweezers to temporarily stop the blood flow followed by coagulation with thulium laser. METHODS: Twenty patients with unruptured cerebral AVMs underwent surgical treatment...
July 26, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28752248/antiplatelet-agents-for-cancer-treatment-a-real-perspective-or-just-an-echo-from-the-past
#10
Marek Z Wojtukiewicz, Dominika Hempel, Ewa Sierko, Stephanie C Tucker, Kenneth V Honn
The association between coagulation and cancer development has been observed for centuries. However, the connection between inflammation and malignancy is also well-recognized. The plethora of evidence indicates that among multiple hemostasis components, platelets play major roles in cancer progression by providing surface and granular contents for several interactions as well as behaving like immune cells. Therefore, the anticancer potential of anti-platelet therapy has been intensively investigated for many years...
July 27, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28747069/a-proposal-of-the-modification-of-japanese-society-on-thrombosis-and-hemostasis-jsth-disseminated-intravascular-coagulation-dic-diagnostic-criteria-for-sepsis-associated-dic
#11
Toshiaki Iba, Marcello Di Nisio, Jecko Thachil, Hideo Wada, Hidesaku Asakura, Koichi Sato, Daizoh Saitoh
Sepsis-associated disseminated intravascular coagulation (DIC) carries a high risk of death. Thus, a simple tool to quickly establish DIC diagnosis is required. The purpose of this study was to introduce the simple and reliable tool for the prediction of outcome in patients with sepsis complicated by coagulopathy. We investigated the performance of simplified Japanese Society on Thrombosis and Hemostasis (JSTH) DIC diagnostic criteria. In this study, we conducted a retrospective, multicenter survey in 107 general emergency and critical care centers in secondary and tertiary care hospitals...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28747025/platelet-function-and-microparticle-levels-in-atrial-fibrillation-changes-during-the-acute-episode
#12
Line Pourtau, Jean Marc Sellal, Romaric Lacroix, Philippe Poncelet, Olivier Bernus, Gisèle Clofent-Sanchez, Mélèze Hocini, Michel Haïssaguerre, Françoise Dignat-George, Frédéric Sacher, Paquita Nurden
BACKGROUND: Thrombotic risk constitutes a major complication of atrial fibrillation (AF). Platelets and microparticles (MPs) are important for hemostasis and thrombosis, however their participation during AF is not well known. The aim of this study was to characterize platelet function and MPs procoagulant and fibrinolytic activity in AF patients and to determine the effects of an acute-AF episode. METHODS: Blood was collected from paroxysmal (21) and persistent (16) AF patients referred for AF catheter ablation...
September 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28741388/comparative-proteomic-analysis-of-the-effect-of-the-four-herb-chinese-medicine-anbp-on-promoting-mouse-skin-wound-healing
#13
Li Chen, Qian Hou, Zhong-Zhi Zhou, Mei-Rong Li, Ling-Zhi Zhong, Xiang-Dong Deng, Zi-Ying Zhu, Zhong-Yi Cheng, Jun Zhu, Cong-Lian Xiang, Wen-Jun He, Xiao-Bing Fu
Traditional Chinese medicine has great potential to improve wound healing. ANBP, the mixture of 4 Chinese herbs- Agrimoniapilosa, Nelumbonucifera, Boswelliacarteri, and Pollen typhae-is effective in trauma treatment while its mechanism is still elusive. In this study, quantitative proteomics and bioinformatics analyses were performed to decipher the possible roles of ANBP in accelerated wound healing of mouse skin. Among all 3171 identified proteins, 90, 71, 80, and 140 proteins were found to be differently expressed in 6 hours, 3 days, 7 days, and 14 days ANBP-treated tissues compared with corresponding control tissues, respectively...
July 1, 2017: International Journal of Lower Extremity Wounds
https://www.readbyqxmd.com/read/28739377/blood-hemostatic-changes-during-an-ultraendurance-road-cycling-event-in-a-hot-environment
#14
Brian R Kupchak, Josh B Kazman, Jakob L Vingren, Danielle E Levitt, Elaine C Lee, Keith H Williamson, Lawrence E Armstrong, Patricia A Deuster
OBJECTIVE: This study aims to examine blood hemostatic responses to completing a 164-km road cycling event in a hot environment. METHODS: Thirty-seven subjects (28 men and 9 women; 51.8±9.5 [mean±SD] y) completed the ride in 6.6±1.1 hours. Anthropometrics (height, body mass [taken also during morning of the ride], percent body fat [%]) were collected the day before the ride. Blood samples were collected on the morning of the ride (PRE) and immediately after (IP) the subject completed the ride...
July 21, 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28738008/randomized-placebo-controlled-study-of-the-effects-of-yunnan-baiyao-on-hemostasis-in-horses
#15
SallyAnne L Ness, Amelia H Frye, Thomas J Divers, Mark Rishniw, Hollis N Erb, Marjory B Brooks
OBJECTIVE To determine effects of oral administration of Yunnan Baiyao on platelet activation, coagulation, and fibrinolysis in healthy horses. ANIMALS 12 healthy adult horses. PROCEDURES In a randomized blinded crossover study that included a 4-week washout period between treatments, horses were orally administered a paste containing Yunnan Baiyao (15 mg/kg) or placebo at 12-hour intervals for 3 days. Blood samples were collected before start of treatment (time 0) and at 24 and 72 hours for a CBC, measurement of fibrinogen concentration, coagulation screening tests, and a panel of assays to assess platelet activation (including ADP- and collagen-induced aggregation and closure times, flow-cytometric variables of platelet-leukocyte aggregates, platelet membrane P-selectin and phosphatidylserine expression, and microparticle release), von Willebrand factor (vWF) concentration, and cofactor activity...
August 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28735835/effect-of-scheduled-second-look-endoscopy-on-peptic-ulcer-bleeding-a-prospective-randomized-multicenter-trial
#16
Soo Jung Park, Hyojin Park, Yong Chan Lee, Chang Hwan Choi, Tae Joo Jeon, Jun Chul Park, Jie-Hyun Kim, Young Hoon Youn, Yu Jin Kim, Jae Hak Kim, Kwang Jae Lee, Sun Gyo Lim, Hyung Gil Kim, Byoung Wook Bang
BACKGROUND AND AIM: This study aimed to investigate the effectiveness of scheduled second-look EGD with endoscopic hemostasis on peptic ulcer rebleeding and sought to identify the risk factors related to the need for second-look EGD. METHODS: We prospectively randomized patients who had endoscopically confirmed bleeding peptic ulcer with stigmata of active bleeding, visible vessel, or adherent clot into 2 groups between August 2010 and January 2013. Hemoclip application or thermal coagulation, and/or epinephrine injection were allowed for initial endoscopic therapy...
July 20, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28735423/the-anticoagulant-effect-of-heparin-during-radiofrequency-ablation-rfa-in-patients-taking-apixaban-or-rivaroxaban
#17
L C Brendel, F Dobler, G Hessling, J Michel, S L Braun, A L Steinsiek, P Groha, R Eckl, I Deisenhofer, A Hyseni, M Roest, I Ott, B Steppich
PURPOSE: Measuring the anticoagulant effect of heparin during radiofrequency ablation (RFA) in patients taking apixaban and rivaroxaban is challenging, since the activated coagulation time (ACT) does not seem to reflect the true anticoagulant activity of these drugs. We therefore evaluated coagulation properties of apixaban and rivaroxaban during RFA by different coagulation assays to better monitor periprocedural hemostasis. METHODS: The study included 90 patients (61 ± 12 years) with atrial fibrillation who underwent RFA procedures...
September 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28730407/venous-thromboembolism-thrombosis-inflammation-and-immunothrombosis-for-clinicians
#18
REVIEW
Eduardo Vazquez-Garza, Carlos Jerjes-Sanchez, Aline Navarrete, Jorge Joya-Harrison, David Rodriguez
Venous thromboembolism (VTE) is a worldwide disease related with mortality, cardiovascular disability, impaired quality of life and, cause major long-term complications. Clinicians related to the acute and long-term patients care must be involved in the molecular mechanisms of thrombosis. The vessel wall and its inner lining of the endothelium are critical to the maintenance of a patent vasculature. After endothelial disruption, collagen (first line of endothelial defense) and intravascular tissue factor (second line of endothelial defense) are exposed to blood flow, starting the formation of a thrombus...
July 20, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28730139/gastric-hemangioma-treated-with-argon-plasma-coagulation-in-a-newborn-infant
#19
Young Ah Lee, Peter Chun, Eun Ha Hwang, Yeoun Joo Lee, Chang Won Kim, Jae Hong Park
Gastric hemangioma in the neonatal period is a very rare cause of upper gastrointestinal bleeding. We present a case of hemangioma limited to the gastric cavity in a 10-day-old infant. A huge, erythematous mass with bleeding was observed on the lesser curvature side of the upper part of the stomach. Surgical resection was ruled out because the location of the lesion was too close to the gastroesophageal junction. Medical treatment with intravenous H2 blockers, octreotide, packed red blood cell infusions, local epinephrine injection at the lesion site, application of hemoclip, and gel-form embolization of the left gastric artery did not significantly alter the transfusion requirement...
June 2017: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/28729433/selective-factor-viii-activation-by-the-tissue-factor-factor-viia-factor-xa-complex
#20
Yuichi Kamikubo, G Loredana Mendolicchio, Antonella Zampolli, Patrizia Marchese, Andrea S Rothmeier, Jennifer Nagrampa Orje, Andrew J Gale, Sriram Krishnaswamy, András Gruber, Henrik Østergaard, Lars C Petersen, Wolfram Ruf, Zaverio M Ruggeri
Safe and effective antithrombotic therapy requires understanding of mechanisms that contribute to pathological thrombosis but have lesser impact on hemostasis. We found that the extrinsic tissue factor (TF) coagulation initiation complex can selectively activate the anti-hemophilic cofactor, FVIII, triggering the hemostatic intrinsic coagulation pathway independently of thrombin feedback loops. In a mouse model with a relatively mild thrombogenic lesion, TF-dependent FVIII activation sets the threshold for thrombus formation through contact phase-generated FIXa...
July 20, 2017: Blood
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