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Haemostasis

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https://www.readbyqxmd.com/read/28636084/co-morbidities-and-bleeding-in-elderly-patients-with-haemophilia-a-survey-of-the-german-austrian-and-swiss-society-of-thrombosis-and-haemostasis-research-gth
#1
W Miesbach, S-E Reitter-Pfoertner, R Klamroth, F Langer, H-H Wolf, A Tiede, B Siegmund, U Scholz, P R Müller, H Eichler, I Pabinger
BACKGROUND: Nowadays patients with haemophilia survive longer due to improvements in haemophilia care. It has been hypothesized that the bleeding type and frequency may vary with age and are influenced by co-morbidities and co-medication in elderly patients. OBJECTIVES: To investigate a large group of patients older than 60 years of age with haemophilia concerning haemophilia treatment, bleeding pattern changes, co-morbidities, co-medication, bleeding sites and patient mortality...
June 21, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
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/28625259/-antithrombin-iii-for-early-diagnosis-of-dic-in-sepsis-patients-a-retrospective-analysis-with-445-patients
#3
Yanjing Xu, Ran Zhu, Yini Sun, Xin Li, Xiaochun Ma
OBJECTIVE: To investigated the role of antithrombin III (AT-III) levels in the early diagnosis of disseminated intravascular coagulation (DIC) in patients with sepsis and the predictive effect of AT-III on the development of DIC. METHODS: A retrospective study was conducted. Patients admitted to intensive care unit (ICU) of the First Affiliated Hospital of China Medical University from January to December in 2015 were enrolled. The patients were divided into sepsis group and non-sepsis group according to the diagnostic criteria of sepsis...
February 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28606852/new-prodrugs-of-metformin-do-not-influence-the-overall-haemostasis-potential-and-integrity-of-the-erythrocyte-membrane
#4
Magdalena Markowicz-Piasecka, Joanna Sikora, Łukasz Mateusiak, Elżbieta Mikiciuk-Olasik, Kristiina M Huttunen
Although metformin, an oral anti-diabetic drug, has been found to have multidirectional effects over the past decade, it is characterised by unfavourable pharmacokinetic properties. This study discusses the effects of metformin, phenformin and three prodrugs of metformin on the haemostasis and integrity of Red Blood Cells (RBCs). The influence of examined biguanide derivatives on haemostasis was evaluated spectrophotometrically by clot formation and lysis test (CL-test) at 405 nm. The extrinsic and intrinsic coagulation pathway were examined by measuring the PT (Prothrombin Time) and aPTT (Activated Partial Tromboplastin Time)...
June 9, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28602578/femoral-arterial-haemostasis-using-an-anchored-collagen-plug-after-percutaneous-evar-with-an-ultra-low-profile-device-prospective-audit-of-an-evolving-post-close-technique
#5
A Chaudhuri
OBJECTIVE: To present an audit of a successful "post-close" haemostatic technique using the Angio-Seal VIP vascular closure device (VCD) after percutaneous endovascular aneurysm repair (p-EVAR) using an ultra-low profile (ULP) device. METHODS: Thirty patients underwent EVAR using the Ovation device, of which 26 procedures were totally percutaneous. Data including patient habitus, procedural details, number of VCDs deployed including use of the double wire approach, and technical success/complications were prospectively recorded...
June 8, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28601642/comparison-of-citrated-and-fresh-whole-blood-for-viscoelastic-coagulation-testing-during-elective-neurosurgery
#6
E Silverberg, F Tornqvist, T Kander, J Bengzon, C Solomon, J Bonnevier, U Schött
BACKGROUND: Previous viscoelastic haemostatic tests studies have often indicated a hypercoagulative test signal with citrated blood, which could influence clinical decision makings. PURPOSE: The aim of this study was to compare fresh and citrated whole blood using two non-automated viscoelastic ROTEM and Sonoclot tests. Our hypothesis was that citrated blood would demonstrate a hypercoagulative response in this setting, not tested before. METHODS: Perioperative viscoelastic coagulation changes were evaluated with a ROTEM and Sonoclot in 38 patients undergoing elective brain tumor surgery...
June 3, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28601546/influences-of-obesity-and-bariatric-surgery-on-the-clinical-and-pharmacologic-profile-of-rivaroxaban
#7
REVIEW
Kenneth Todd Moore, Dino Kröll
The health implications of obesity are myriad and multifaceted. Physiologic changes associated with obesity can affect the absorption, distribution, metabolism, and excretion of administered drugs, thereby altering their pharmacologic profiles. In 2016, the Scientific and Standardization Committee of the International Society on Thrombosis and Haemostasis published recommendations regarding the use of direct oral anticoagulants (DOACs) in obese patients. This guidance provides uniform recommendations for all DOACs, yet data suggest that individual agents may be affected to different degrees by obesity...
June 7, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28597906/platelet-receptors-as-therapeutic-targets-past-present-and-future
#8
Janina Jamasbi, Keng Ayabe, Shinya Goto, Bernhard Nieswandt, Karlheinz Peter, Wolfgang Siess
Anti-platelet drugs reduce arterial thrombosis after plaque rupture and erosion, prevent stent thrombosis and are used to prevent and treat myocardial infarction and ischaemic stroke. Some of them may also be helpful in treating less frequent diseases such as thrombotic thrombocytopenic purpura. The present concise review aims to cover current and future developments of anti-platelet drugs interfering with the interaction of von Willebrand factor (VWF) with glycoprotein (GP) Ibα, and directed against GPVI, GPIIb/IIIa (integrin αIIbβ3), the thrombin receptor PAR-1, and the ADP receptor P2Y12...
June 8, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28597715/effect-of-menstrual-phase-on-the-surgical-treatment-of-ovarian-cysts
#9
Taejong Song, Mi Kyoung Kim, Mi-La Kim, Yong Wook Jung, Bo Seong Yun, Seok Ju Seong
This study aimed to determine whether the menstrual cycle affects operative bleeding and postoperative ovarian reserve in patients undergoing laparoscopic ovarian cystectomy. A total of 155 patients who had undergone laparoscopic ovarian cystectomy were classified into the follicular phase (n = 84) and luteal phase (n = 71) of the menstrual cycle. The primary outcome measures were operative blood loss and the rate of decline in ovarian reserve, as calculated by measuring serial serum anti-Müllerian hormone (AMH) levels preoperatively and 3 months postoperatively...
June 9, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28594052/coagulation-factor-and-protease-pathways-in-thrombosis-and-cardiovascular-disease
#10
Hugo Ten Cate, Tilman M Hackeng, Pablo García de Frutos
The biochemical characterization of the proteolytic pathways that constitute blood coagulation was one of the most relevant achievements in biomedical research during the second half of the 20th century. Understanding these pathways was of crucial importance for improving global health through application in haemostasis and thrombosis pathologies. Immediately after the cloning of the genes corresponding to these proteins, mutations were discovered in them that were associated with imbalances in haemostasis...
June 8, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28592770/dic-an-update-on-diagnosis-and-treatment
#11
Hideo Wada, Kei Hasegawa, Maki Watanabe
Disseminated intravascular coagulation (DIC) was considered to be a fatal disease. However, it has recently been suggested that very early DIC protects the host against microthrombosis and infection localization. Therefore, early treatment of DIC may be contraindicated in patients with sepsis. These factors suggest that the diagnosis and treatment of DIC will gain further importance. The Japanese Clinical Practice Guidelines for Management of Sepsis and Septic Shock 2016 (J-SSCG2016), which include details regarding the management of DIC, have been recently published...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28589443/metformin-a-future-therapy-for-neurodegenerative-diseases
#12
REVIEW
Magdalena Markowicz-Piasecka, Joanna Sikora, Aleksandra Szydłowska, Agata Skupień, Elżbieta Mikiciuk-Olasik, Kristiina M Huttunen
Type 2 diabetes mellitus (T2DM) is a complex, chronic and progressive metabolic disease, which is characterized by relative insulin deficiency, insulin resistance, and high glucose levels in blood. Esteemed published articles and epidemiological data exhibit an increased risk of developing Alzheimer's disease (AD) in diabetic pateints. Metformin is the most frequently used oral anti-diabetic drug, which apart from hypoglycaemic activity, improves serum lipid profiles, positively influences the process of haemostasis, and possesses anti-inflammatory properties...
June 6, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28576667/bipolar-plasma-enucleation-of-the-prostate-b-tuep-in-benign-prostate-hypertrophy-treatment-3-year-results
#13
Roberto Giulianelli, Barbara Cristina Gentile, Gabriella Mirabile, Luca Albanesi, Paola Tariciotti, Giorgio Rizzo, Maurizio Buscarini, Cristina Falavolti
OBJECTIVE: To numerous endoscopic techniques have been described for the treatment of benign prostate enlargement (BPE). The plasma-button enucleation of the prostate (B-TUEP) is a successful treatment option because the large surface creates a fast enucleation process, vaporization and concomitant haemostasis. The aim of this study was to evaluate the efficacy of bipolar button electrode transurethral adenoma enucleation (B-TUEP) in saline solution. The second endpoint was to determine the change of IPSS, PVR, IEFF-5, TrUS and PSA...
May 30, 2017: Urology
https://www.readbyqxmd.com/read/28575217/comprehensive-platelet-phenotypic-laboratory-testing-and-bleeding-history-scoring-for-diagnosis-of-suspected-hereditary-platelet-disorders-a-single-institution-experience
#14
Juliana Perez Botero, Deepti M Warad, Rong He, Cindy B Uhl, Shulan Tian, Gregory E Otteson, Ryan L Barness, Mary C Olson, Susan C Gossman, Jon E Charlesworth, William L Nichols, Rajiv K Pruthi, Dong Chen
Objectives: Patients with hereditary/congenital platelet disorders (HPDs) have a broad range of clinical manifestations and laboratory phenotypes. We assessed the performance characteristics of the International Society on Thrombosis and Haemostasis bleeding assessment tool (ISTH-BAT) and clinically validated platelet laboratory tests for diagnosis of HPDs. Methods: The records of 61 patients with suspected HPDs were reviewed and ISTH-BAT scores calculated. Results: Nineteen (31%) patients had thrombocytopenia, and 46 (75%) had positive ISTH-BAT scores...
June 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28574019/k-time-maximum-amplitude-of-thromboelastogram-predict-post-central-venous-cannulation-bleeding-in-patients-with-cirrhosis-a-pilot-study
#15
Chandra K Pandey, Vandana Saluja, Kumar Gaurav, Manish Tandon, Vijay K Pandey, Ajeet S Bhadoria
BACKGROUND & OBJECTIVES: Coagulation and haemostasis are dynamic processes. The haemostatic changes in liver disease affect all aspects of coagulation. The prothrombin time (PT)/ international normalized ratio (INR) was developed to monitor oral anticoagulant therapy and the activated partial thromboplastin time to investigate inheritable single factor deficiencies. Viscoelastic tests such as thromboelastogram (TEG) give information about dynamics of clot formation (coagulation factor and anticoagulant activity), clot strength (platelets and fibrinogen) and clot stability (finbrinolysis and factor XIII)...
January 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28571558/protein-profile-analysis-of-two-australian-snake-venoms-by-one-dimensional-gel-electrophoresis-and-ms-ms-experiments
#16
Dessi Georgieva, Diana Hildebrand, Rodrigo Simas, Monika A Coronado, Marcel Kwiatkowski, Hartmut Schlüter, Raghuvir Arni, Patrick Spencer, Christian Betzel
The Pseudechis colletti and Pseudechis butleri venoms were analyzed by 1-D gel electrophoresis, followed by mass spectrometric analysis of tryptic peptides obtained from the protein bands. Both venoms contain highly potent pharmacologically active components, which were assigned to the following protein families: basic and acidic phospholipases A2 (PLA2s), L-amino acid oxidases (LAAOs), P-III metalloproteinases (P-III SVMPs), 5'-nucleotidases (5'-NTDs), cysteine-rich secretory proteins (CRISPs), venom nerve growth factors (VNGFs) and post-synaptic neurotoxins...
May 31, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28570120/characterization-of-the-coagulation-profile-in-children-with-liver-disease-and-extrahepatic-portal-vein-obstruction-or-shunt
#17
William Beattie, Maria Magnusson, Winita Hardikar, Paul Monagle, Vera Ignjatovic
INTRODUCTION: Chronic liver disease causes a disruption of procoagulant and anticoagulant factors, resulting in a fragile state, prone to increased rates of both bleeding and thrombosis. Currently, there is limited literature describing the changes observed in pediatric liver disease and extrahepatic portal vein obstruction or shunt. This study aimed to describe the changes that occur in children with chronic liver disease and extrahepatic portal vein obstruction or shunt. MATERIALS AND METHODS: We measured the concentration and activity of key procoagulant and anticoagulant factors in children with liver disease, children with extrahepatic portal vein obstruction or shunt, and healthy children...
June 1, 2017: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/28566286/rab35-regulates-evoked-exocytosis-of-endothelial-weibel-palade-bodies
#18
Anja Biesemann, Alexandra Gorontzi, Francis Barr, Volker Gerke
Weibel-Palade bodies (WPB) are secretory organelles of endothelial cells that undergo evoked exoyctosis following intracellular Ca2+ or cAMP elevation, thereby supplying the vasculature with factors controlling haemostasis. Several cytosolic and membrane-associated proteins, including the Rab family members Rab3, Rab15 and Rab27a, have been implicated in regulating the acute exocytosis of WPB. Here, we carried out a genome-wide screen to identify Rab pathways affecting WPB exocytosis. Overexpression of a specific subset of Rab GTPase-activating proteins (RabGAPs) inhibited histamine-evoked, Ca2+-dependent WPB exocytosis, presumably by inactivating the target RabGTPases...
May 31, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28565887/safety-and-efficacy-of-catheter-based-left-atrial-appendage-closure-in-patients-with-contraindications-for-long-term-anticoagulation
#19
Adrian Seidel, Abdul S Parwani, Florian Krackhardt, Martin Huemer, Philipp Attanasio, Wilhelm Haverkamp, Burkert Pieske, Leif-Hendrik Boldt
BACKGROUND: Percutaneous left atrial appendage closure (LAAC) and the role of post interventional anticoagulation often evokes controversy in daily practice. This study aimed to evaluate LAAC in patients with non-rheumatic atrial fibrillation, high thromboembolic risk and contraindications for long-term anticoagulation in a clinical scenario. METHODS AND RESULTS: Between 2010-2015, LAAC was attempted in 118 patients (47 women). Devices were successfully implanted in 95% (Watchman™ device n=97, St...
May 31, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28560760/oral-antiplatelet-therapy-impact-for-transfusion-medicine
#20
REVIEW
T Gremmel, S Panzer
Patients on antiplatelet therapy, be it aspirin only, or aspirin in combination with oral adenosine diphosphate (ADP) receptor inhibitors like clopidogrel, prasugrel and ticagrelor, or the protease-activated receptor-1 inhibitor vorapaxar, may develop bleeding or need transient reversal of platelet blockade for acute interventions. In this review, we summarize reports on patients with antiplatelet therapy receiving platelet concentrates due to bleeding, and in vitro experiments estimating the feasibility to restore platelet function by spiking blood from healthy individuals or patients on antiplatelet treatment with noninhibited platelets...
May 30, 2017: Vox Sanguinis
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