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Haemostasis

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https://www.readbyqxmd.com/read/28343143/impact-of-rivaroxaban-on-point-of-care-assays
#1
Pierre Fontana, Lorenzo Alberio, Anne Angelillo-Scherrer, Lars M Asmis, Wolfgang Korte, Adriana Mendez, Pirmin Schmid, Hans Stricker, Jan-Dirk Studt, Dimitrios A Tsakiris, Walter A Wuillemin, Michael Nagler
BACKGROUND: Point-of-care testing (POCT) is regularly used to assess haemostasis in various clinical settings. The impact of rivaroxaban on those POCT is still elusive. We aimed to study the effects of rivaroxaban on most commonly used POCT assays. METHODS: Blood samples were taken before, 3h, and 24h after administration of 20mg rivaroxaban to 20 healthy volunteers as part of a prospective, multicenter validation study (clinicaltrials.govNCT01710267). Blood samples were analysed with thromboelastometry (ROTEM®), two platelet function assays (INNOVANCE® PFA-200 and Multiplate®), and the CoaguChek® XS...
March 21, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28338036/to-cord-or-not-to-cord-that-is-still-a-question
#2
Analia Veitz-Keenan, James R Keenan
Data sourcesA broad computerised search with similar key terms was performed in different databases that included: Ovid Medline, Thomson's ISI Web of Science, PubMed, Science Direct, EMBASE and the Cochrane Library. Grey literature, dissertations, abstracts and theses were searched too. Reference lists of the selected articles were hand-searched.Study selectionThe inclusion criteria included in vivo randomised clinical trials and quasi-randomised clinical trials using gingival retraction techniques with and without cord...
March 2017: Evidence-based Dentistry
https://www.readbyqxmd.com/read/28335059/retrospective-evaluation-of-percutaneous-access-for-tevar-and-evar-time-to-make-it-the-standard-approach
#3
Rohit Philip Thomas, Tobias Kowald, Bernhard Schmuck, Osama Eldergash, Andreas Klausen, Valentin Dikov, Jerry Easo, Ajay Chavan
Introduction To evaluate the safety of percutaneous endovascular aortic repair and the relationship of access site characteristics to complications Materials and Methods All patients undergoing percutaneous TEVAR, EVAR and FEVAR procedures from January 2010 to May 2016 were retrospectively analysed for incidence of complications and their relationship to various access site characteristics like access artery size, degree of vessel calcification, skin to artery distance and sheath to artery ratio. Hemostasis occurring within 15 min after suture closure with or without manual compression was defined as primary hemostasis...
April 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28329764/the-lung-is-a-site-of-platelet-biogenesis-and-a-reservoir-for-haematopoietic-progenitors
#4
Emma Lefrançais, Guadalupe Ortiz-Muñoz, Axelle Caudrillier, Beñat Mallavia, Fengchun Liu, David M Sayah, Emily E Thornton, Mark B Headley, Tovo David, Shaun R Coughlin, Matthew F Krummel, Andrew D Leavitt, Emmanuelle Passegué, Mark R Looney
Platelets are critical for haemostasis, thrombosis, and inflammatory responses, but the events that lead to mature platelet production remain incompletely understood. The bone marrow has been proposed to be a major site of platelet production, although there is indirect evidence that the lungs might also contribute to platelet biogenesis. Here, by directly imaging the lung microcirculation in mice, we show that a large number of megakaryocytes circulate through the lungs, where they dynamically release platelets...
March 22, 2017: Nature
https://www.readbyqxmd.com/read/28319824/effect-of-long-term-remote-ischaemic-conditioning-on-platelet-function-and-fibrinolysis-in-patients-with-chronic-ischaemic-heart-failure
#5
Kasper Pryds, Jacobina Kristiansen, Søs Neergaard-Petersen, Roni R Nielsen, Michael R Schmidt, Jens Refsgaard, Steen D Kristensen, Hans Erik Bøtker, Anne-Mette Hvas, Erik L Grove
INTRODUCTION: Remote ischaemic conditioning (RIC) protects against ischaemia-reperfusion injury through cellular protective pathways, but may also modulate haemostasis. We aimed to investigate the effect of long-term RIC on platelet function and fibrinolysis in patients with chronic ischaemic heart failure (CIHF). MATERIAL AND METHODS: In a prospective, outcome-assessor blinded, paired study, 16 patients with CIHF and 21 age- and gender-matched controls without ischaemic heart disease (IHD) were treated with RIC once daily for 28±4days...
March 10, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28316004/effect-of-the-fxa-inhibitors-rivaroxaban-and-apixaban-on-platelet-activation-in-patients-with-atrial-fibrillation
#6
B Steppich, F Dobler, L C Brendel, G Hessling, S L Braun, A L Steinsiek, I Deisenhofer, A Hyseni, M Roest, I Ott
Rivaroxaban and Apixaban, increasingly used for stroke prevention in non-valvular atrial fibrillation (AF), might impact platelet reactivity directly or indirectly. By inhibition of Factor Xa (FXa) they preclude not only generation of relevant thrombin amounts but also block signalling of FXa via protease activated receptors. However, weather FXa-inhibition affects platelet haemostasis remains incompletely known. One hundred and twenty-eight patients with AF on chronic anticoagulation with either Rivaroxaban or Apixaban for at least 4 weeks were included in the study...
March 18, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28314985/the-role-of-new-oral-anticoagulants-in-orthopaedics-an-update-of-recent-evidence
#7
REVIEW
Dimitrios V Papadopoulos, Ioannis Kostas-Agnantis, Ioannis Gkiatas, Andreas G Tsantes, Panagiota Ziara, Anastasios V Korompilias
Rivaroxaban, dabigatran, apixaban and edoxaban are the four available new oral anticoagulants (NOAC) which are currently approved for venous thromboembolism prophylaxis after total hip and knee replacement. Large phase 3 and phase 4 studies comparing NOAC with low molecular weight heparins have shown similar results regarding the efficacy and safety of these two categories of anticoagulants. Management of bleeding complications is a matter of great significance. Three reversal agents have been developed: idarucizumab, andexanet alfa and ciraparantag...
March 17, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28303867/-organization-and-results-of-surgical-care-for-ulcerative-gastroduodenal-bleeding-in-the-hospitals-of-central-federal-district
#8
V A Kubyshkin, V P Sazhin, A V Fedorov, G A Krivtsov, I V Sazhin
AIM: To present treatment of 52 149 patients with ulcerative gastroduodenal bleeding (UGDB) who were treated in different regions of Central Federal District (CFD) for the period 2011-2014. It is noted that UGDB incidence per 100 thousands is increased proportionally from 32.9 to 77.8 according to population less than 20 and over 100 thousands, respectively. In hospitals of small and medium settlements the number of UGDB patients without surgery reaches 81.6 and 81.1%, the number of operated patients - 18...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28300869/e-selectin-inhibition-with-gmi-1271-decreases-venous-thrombosis-without-profoundly-affecting-tail-vein-bleeding-in-a-mouse-model
#9
Dorian L Culmer, Misha L Dunbar, Angela E Hawley, Suman Sood, Robert E Sigler, Peter K Henke, Thomas W Wakefield, John L Magnani, Daniel D Myers
Selectins, such as E-selectin (CD62E), function in venous thrombosis by binding and activating immune cells to initiate the coagulation cascade. GMI-1271 is a small molecule antagonist that inhibits E-selectin activity. Here we determine whether inhibition of E-selectin is sufficient to decrease acute venous thrombosis and associated inflammatory events in both prophylactic and treatment protocols without significantly affecting haemostasis. Male C57BL/6 mice underwent surgery for experimental thrombosis induction and were harvested at peak thrombus formation in our animal model, two days post induction...
March 16, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28287385/interference-of-direct-oral-anticoagulants-in-haemostasis-assays-high-potential-for-diagnostic-false-positives-and-false-negatives
#10
EDITORIAL
Emmanuel J Favaloro, Giuseppe Lippi
No abstract text is available yet for this article.
March 7, 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28285572/optimal-timing-for-performing-hysterectomy-according-to-different-phase-of-menstrual-cycle-which-is-best
#11
Jeong Jin Kim, Jun Hyeok Kang, Kyo Won Lee, Kye Hyun Kim, Taejong Song
The aim of this study was to determine whether the different phases of the menstrual cycle could affect operative bleeding in women undergoing laparoscopic hysterectomy. This was a retrospective comparative study. Based on the adjusted day of menstrual cycle, 212 women who underwent laparoscopic hysterectomy were classified into three groups: the follicular phase (n = 51), luteal phase group (n = 125), and menstruation group (n = 36). The primary outcome measure was the operative bleeding. There was no difference in the baseline characteristics of the patients belonging to the three groups...
March 13, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28283870/-dirty-coagulation-technique-as-an-alternative-to-microclips-for-control-of-bleeding-from-deep-feeders-during-brain-arteriovenous-malformation-surgery
#12
Danil A Kozyrev, Peeraphong Thiarawat, Behnam Rezai Jahromi, Patcharin Intarakhao, Joham Choque-Velasquez, Ferzat Hijazy, Mario K Teo, Juha Hernesniemi
BACKGROUND: Meticulous haemostasis is one of the most important factors during microneurosurgical resection of brain arteriovenous malformation (AVM). Controlling major arterial feeders and draining veins with clips and bipolar coagulation are well-established techniques, while managing with bleeding from deep tiny vessels still proves to be challenging. This technical note describes a technique used by the senior author in AVM surgery for last 20 years in dealing with the issue highlighted...
March 11, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28276570/the-role-of-rna-uptake-in-platelet-heterogeneity
#13
Lauren Clancy, Lea M Beaulieu, Kahraman Tanriverdi, Jane E Freedman
The role of platelets in regulating vascular homeostasis has expanded beyond mediation of haemostasis and thrombosis. The discovery of platelet RNA and the presence of subpopulations of platelets containing varying amounts of RNA suggest a role for platelet transcripts in vascular function. As the RNA in anucleated platelets is biologically functional and may transfer to other vascular cells, we hypothesised that platelet RNA diminishes over the lifespan of the platelet with diminishing platelet size due to horizontal cellular transfer...
March 9, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28266936/statins-haemostatic-factors-and-thrombotic-risk
#14
Vanessa Bianconi, Amirhossein Sahebkar, Maciej Banach, Matteo Pirro
PURPOSE OF REVIEW: Statins reduce cholesterol synthesis and promote low-density lipoprotein clearance from circulation. Beyond their cholesterol-lowering action, statins may interfere with haemostasis. This review aims to provide an update on the impact of statin treatment on markers of haemostasis and platelet function and on thrombosis-related outcomes. RECENT FINDINGS: Different coagulation factors are modulated by statins, leading to inhibition of coagulation and increased fibrinolysis...
March 6, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28262530/comparison-of-heater-probe-coagulation-and-argon-plasma-coagulation-in-the-management-of-mallory-weiss-tears-and-high-risk-ulcer-bleeding
#15
Mete Akin, Erhan Alkan, Yasar Tuna, Tolga Yalcinkaya, Bulent Yildirim
BACKGROUND AND STUDY AIMS: Upper gastrointestinal (GI) bleeding is a common medical emergency. Endoscopic treatments often lead to better therapeutic outcomes than conventional conservative treatments. This study aimed to investigate and compare the use of heater probe coagulation (HPC) and argon plasma coagulation (APC) together with epinephrine injection for the treatment of Mallory-Weiss tears and high-risk ulcer bleeding. PATIENTS AND METHODS: A total of 97 patients (54 in the HPC group and 43 in the APC group) who were diagnosed with upper GI bleeding secondary to a Mallory-Weiss tear or high-risk gastric or duodenal ulcers were included in the study...
March 2, 2017: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/28262235/the-effect-of-bmi-on-haemostasis-implications-for-thrombosis-in-women-s-health
#16
Beverley J Hunt
Obesity has reached epidemic proportions and is a well-recognised risk factor for venous thromboembolism (VTE). This article summarises the current understanding of obesity and debates how obesity induces this increased risk of VTE. Obesity is associated with prothrombotic changes which have been well-characterised and include increased levels of plasminogen activator-1, von Willebrand factor, fibrinogen and evidence of increased coagulation and platelet activation; however, these changes do not seem to account for all the increased risk...
March 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28251234/effect-of-restrictive-versus-liberal-red-cell-transfusion-strategies-on-haemostasis-systematic-review-and-meta-analysis
#17
Michael J R Desborough, Katherine S Colman, Babette W Prick, Johannes J Duvekot, Connor Sweeney, Ayodele Odutayo, Vipul Jairath, Carolyn Doree, Marialena Trivella, Sally Hopewell, Lise J Estcourt, Simon J Stanworth
Red cells play a key role in normal haemostasis in vitro but their importance clinically is less clear. The objective of this meta-analysis was to assess if correction of anaemia by transfusing red cells at a high haemoglobin threshold (liberal transfusion) is superior to transfusion at a lower haemoglobin threshold (restrictive transfusion) for reducing the risk of bleeding or thrombotic events. We searched for randomised controlled trials in any clinical setting that compared two red cell transfusion thresholds and investigated the risk of bleeding...
March 2, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28251148/emergent-uterine-arterial-embolization-using-n-butyl-cyanoacrylate-in-postpartum-hemorrhage-with-disseminated-intravascular-coagulation
#18
Soichiro Obata, Michi Kasai, Junko Kasai, Kazuo Seki, Zenjiro Sekikawa, Izumi Torimoto, Shigeo Takebayashi, Fumiki Hirahara, Shigeru Aoki
Although it is widely accepted that uterine artery embolization (UAE) is an effective therapeutic strategy for postpartum hemorrhage (PPH), no consensus has been reached regarding the efficacy of UAE in patients with PPH with disseminated intravascular coagulation (DIC). This single-center retrospective cohort study included patients treated with UAE using NBCA for PPH between 2010 and 2015. The patients were divided into DIC and non-DIC groups, according to the obstetrical DIC score and the overt DIC diagnostic criteria issued by the International Society of Thrombosis and Haemostasis (ISTH), and their clinical outcomes were compared...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28246677/tissue-factor-levels-in-type-2-diabetes-mellitus
#19
Prashilla Soma, Albe C Swanepoel, Janette Bester, Etheresia Pretorius
INTRODUCTION: Type 2 diabetes mellitus is a pandemic associated with disturbance in haemostasis that could contribute to the development of diabetic vascular disease and accelerated atherosclerosis. In this population, hypercoagulation is prevalent, as well as pathological changes to erythrocytes. This is mainly due to upregulated circulating inflammatory markers. MATERIALS AND METHODS: Here we looked at tissue factor (TF) levels using ELISA, in a sample of diabetics, with and without cardiovascular complications...
February 28, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28244023/-perioperative-anticoagulation-with-noac-using-the-example-of-rivaroxaban
#20
Jürgen Koscielny, Christian von Heymann, Rupert Bauersachs, Patrick Mouret, Matthias Antz
BACKGROUND: Recent findings require an update of earlier recommendations on the perioperative management of non Vitamin K antagonist oral anticoagulants (NOAC). METHOD: The present position paper summarises the outcomes of an expert panel discussion. RESULTS AND CONCLUSIONS: Based on the pharmacokinetic profile of rivaroxaban, a preoperative interruption of 24-72 hours is recommended depending on the patient's renal function, as well as individual and surgery-related bleeding risks...
March 2017: MMW Fortschritte der Medizin
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