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S Louw, N P Saragas, P N Ferrao, T F Chirwa, B F Jacobson
BACKGROUND: Low-molecular-weight heparin and vitamin K antagonists such as warfarin are the gold standard for prohylaxis and treatment of venous thromboembolic disease (VTED). Direct oral anticoagulants (DOACs) result in predictable anticoagulation with significantly reduced inter- and intra-patient variability. DOAC absorption is rapid, with a short half-life and relatively few drug interactions. DOACs are effective and safe at fixed doses without activity monitoring. However, specific situations may require assessment of accurate drug activity...
September 8, 2016: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
Jan Beyer-Westendorf, A John Camm, Craig I Coleman, Sally Tamayo
Randomised controlled trials (RCTs) are considered the gold standard of clinical research as they use rigorous methodologies, detailed protocols, pre-specified statistical analyses and well-defined patient cohorts. However, RCTs do not take into account the complexity of real-world clinical decision-making. To tackle this, real-world data are being increasingly used to evaluate the long-term safety and effectiveness of a given therapy in routine clinical practice and in patients who may not be represented in RCTs, addressing key clinical questions that may remain...
September 14, 2016: Thrombosis and Haemostasis
Ann Shastay
No abstract text is available yet for this article.
September 2016: Home Healthcare Now
Peter Michael Prodinger, Rainer Burgkart, Kilian Kreutzer, Franz Liska, Hakan Pilge, Andreas Schmitt, Martina Knödler, Boris Michael Holzapfel, Alexander Hapfelmeier, Thomas Tischer, Oliver Bissinger
Low molecular weight heparin (LMWH) is routinely used to prevent thromboembolism in orthopaedic surgery, especially in the treatment of fractures or after joint-replacement. Impairment of fracture-healing due to increased bone-desorption, delayed remodelling and lower calcification caused by direct osteoclast stimulation is a well-known side effect of unfractioned heparin. However, the effect of LMWH is unclear and controversial. Recent studies strongly suggest impairment of bone-healing in-vitro and in animal models, characterized by a significant decrease in volume and quality of new-formed callus...
2016: PloS One
Ana Boban, Catherine Lambert, Cedric Hermans
We here present the successful initial treatment and secondary prophylaxis of superficial venous thrombosis secondary to Behçet's disease by a novel anticoagulant drug, rivaroxaban (Xarelto®). To our knowledge, this is the first case of using an oral direct inhibitor of FXa in this setting. Our findings are promising; the outcome was favourable without any adverse effect noted. We propose that the patients with Behçet's disease and venous thrombosis might benefit from the advantages of the new anticoagulant drug...
2016: Case Reports in Hematology
Craig I Coleman, Sylvia Haas, Alexander G G Turpie, Silvia Kuhls, Susanne Hess, Thomas Evers, Pierre Amarenco, Paulus Kirchhof, A John Camm
BACKGROUND: The efficacy, safety, and ease of use of rivaroxaban may reduce anticoagulation-treatment burden and improve nonvalvular atrial fibrillation (NVAF) patient satisfaction compared with vitamin K antagonists (VKAs). HYPOTHESIS: Transitioning from a VKA to rivaroxaban improves treatment satisfaction in routine practice. METHODS: Xarelto for Prevention of Stroke in Patients With Atrial Fibrillation (XANTUS) is a prospective, noninterventional study in patients with NVAF prescribed rivaroxaban for prevention of stroke in routine practice...
June 30, 2016: Clinical Cardiology
Melissa A Herschman, Frank S Rigelsky, Sandra S Axtell
PURPOSE: A pilot study was conducted to determine whether rivaroxaban (Xarelto, Janssen Pharmaceuticals) resulted in a lower 30-day all-cause readmission rate compared with enoxaparin (Lovenox, Sanofi-Aventis) after total hip arthroplasty (THA) or total knee arthroplasty (TKA) at a community hospital. METHODS: The study was a single-center, retrospective, chart-review investigation involving patients who underwent THA or TKA between May 2013 and May 2014. The study's primary endpoint was the 30-day all-cause readmission rate...
June 2016: P & T: a Peer-reviewed Journal for Formulary Management
Masatsugu Hori, Shunya Ikeda, Ken Okumura, Shinya Matsuda, Yukihiro Koretsune, Calypso Montouchet, Emi Watanabe-Fujinuma, Thomas Evers, Bruno Rossi, Lewis Ruff, Jean-Baptiste Briere
OBJECTIVES: Atrial fibrillation (AF) affects an estimated 1.5 million individuals in Japan, increasing their stroke risk and imposing considerable costs on the Japanese healthcare system. To reduce stroke incidence, guidelines recommend using anticoagulants in moderate-to-high risk non-valvular AF (NVAF) patients; however, many patients receive no treatment, aspirin only, or remain poorly-controlled on vitamin K antagonists (VKAs) due to high VKA discontinuation rates and non-adherence to guidelines...
September 2016: Journal of Medical Economics
C F Munson, A J Reid
Novel oral anticoagulants (NOACs) have emerged as a good alternative to warfarin in the prevention of stroke for patients with atrial fibrillation. NOAC use is increasing rapidly; therefore, greater understanding of their use in the perioperative period is important for optimal care. Studies and reviews that reported on the use of NOACs were identified, with particular focus on the perioperative period. PubMed was searched for relevant articles published between January 2000 and August 2015. The inevitable rise in the use of NOACs such as rivaroxaban (Xarelto™), apixaban (Eliquis™), edoxaban (Lixiana™) and dabigatran (Pradaxa™) may present a simplified approach to perioperative anticoagulant management due to fewer drug interactions, rapidity of onset of action and relatively short half-lives...
May 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
Hampton M Vernon, Andrew K Nielsen, Edward C O'Bryan
Little has been documented regarding hypersensitivity reactions with rivaroxaban or other factor Xa inhibitors. We report the development of a hypersensitivity reaction to rivaroxaban in a 64-year-old African American male patient who presented to the emergency department and was subsequently evaluated in dermatology consultation and follow-up. This case highlights the vigilance required by health care workers in recognizing potential adverse effects of newer anticoagulation therapy and in making medication changes where necessary...
July 2016: American Journal of Emergency Medicine
Krzysztof Chojnowski, Tomasz Górski, Marta Robak, Jacek Treliński
BACKGROUND: Rivaroxaban (Xarelto) does not require routine coagulation monitoring; however, in certain clinical situations (overdose, drug accumulation, urgent surgery) measurement of its plasma concentration is highly recommended. Currently, there is no single hemostasis test that shows a direct correlation between rivaroxaban plasma levels and anticoagulant efficacy. OBJECTIVES: This study was intended to assess the value of ROTEM in determining rivaroxaban administration...
November 2015: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Abdullah Pandor, Daniel Pollard, Tim Chico, Robert Henderson, Matt Stevenson
As part of its Single Technology Appraisal process, the National Institute for Health and Care Excellence (NICE) invited the company that manufactures rivaroxaban (Xarelto, Bayer) to submit evidence of the clinical and cost effectiveness of rivaroxaban for the prevention of adverse outcomes in patients after the acute management of acute coronary syndrome (ACS). The School of Health and Related Research Technology Appraisal Group at the University of Sheffield was commissioned to act as the independent Evidence Review Group (ERG)...
May 2016: PharmacoEconomics
Michael R Lassen, Sylvia Haas, Reinhold Kreutz, Lorenzo G Mantovani, Gerlind Holberg, Alexander G G Turpie
BACKGROUND: The risk of venous thromboembolism is high in patients undergoing fracture-related major orthopedic surgery, but data on pharmacological thromboprophylaxis are limited. This analysis evaluated the effectiveness and safety of rivaroxaban after fracture-related orthopedic surgery in routine care compared with other pharmacological thromboprophylaxis (standard of care [SOC]). METHODS: The study population comprised a subset of patients with lower-limb fracture from XArelto in the prophylaxis of post-surgical venous thromboembolism after elective Major Orthopaedic Surgery of hip or knee (XAMOS; a phase IV noninterventional study) and a XAMOS extension study (XAMOS-Extra)...
March 2016: Clinical and Applied Thrombosis/hemostasis
Guyan Liang, J Phillip Bowen
There has been a revolution in the development of effective, small-molecule anticoagulants and antiplatelet agents. Numerous trypsin-like serine proteases have been under active pursuit as therapeutic targets. Important examples include thrombin, factor VIIa, factor Xa, and β-tryptase with indications ranging from thrombosis and inflammation to asthma and chronic obstructive pulmonary disease (COPD). Trypsin-like serine proteases exhibit a highly similar tertiary folding pattern, especially for the region near the substrate binding pocket that includes the conserved catalytic triad consisting of histidine 57, aspartic acid 102, and serine 195...
2016: Current Topics in Medicinal Chemistry
Henry A Spiller, James B Mowry, Alfred Aleguas, Jill R K Griffith, Robert Goetz, Mark L Ryan, Stacey Bangh, Wendy Klein-Schwartz, Scott Schaeffer, Marcel J Casavant
STUDY OBJECTIVE: Rivaroxaban and apixaban are part of a new group of oral anticoagulants targeting factor Xa and approved by the Food and Drug Administration in 2011 and 2012. These oral anticoagulants are administered at fixed daily doses, without the need for laboratory-guided adjustments. There are limited data available on supratherapeutic doses or overdose of the oral Xa inhibitors. This study characterizes the clinical effect in patients exposed to rivaroxaban and apixaban. METHODS: A retrospective study collected data from 8 regional poison centers covering 9 states...
February 2016: Annals of Emergency Medicine
Samuel P Hammar
We describe a 64-year-old man with extensive diffuse acute lung hemorrhage, presumably as a result of anticoagulation therapy. We evaluated reports in the literature concerning acute exacerbation (acute lung injury of unknown cause) in UIP and other forms of fibrotic interstitial pneumonias. We also evaluated autopsy tissue in this case in order to determine the cause of death in this 64-year-old man, who was initially thought to have an asbestos-related disease. Based on the autopsy findings, this man died as a result of anticoagulation therapy; specifically, the use of Xarelto(®) (rivaroxaban)...
2015: Respiratory Medicine Case Reports
Michelle R Boyce, Bradley E Barth, Ajay Singh
PURPOSE: To report a case of spontaneous recurrent significant subretinal hemorrhage in a patient on rivaroxaban (Xarelto). METHODS: A case report of a 63-year-old man on rivaroxaban with peripapillary choroidal neovascular membrane and macula involving subretinal hemorrhage. RESULTS: Improvement in visual acuity from 20/200 to 20/30 and restoration of foveal contour after pneumatic displacement of hemorrhage with C3F8 gas and subsequent treatment with ranibizumab...
2016: Retinal Cases & Brief Reports
Antonio Gómez-Outes, Ma Luisa Suárez-Gea, Ramón Lecumberri, Ana Isabel Terleira-Fernández, Emilio Vargas-Castrillón
In recent years, several direct-acting oral anticoagulants (DOAC) have become available for use in Europe and other regions in indications related to prophylaxis and treatment of venous and arterial thromboembolism. They include the oral direct thrombin inhibitor dabigatran etexilate (Pradaxa, Boehringer Ingelheim) and the oral direct FXa inhibitors rivaroxaban (Xarelto, Bayer HealthCare), apixaban (Eliquis, Bristol-Myers Squibb), and edoxaban (Lixiana/Savaysa, Daiichi-Sankyo). The new compounds have a predictable dose response and few drug-drug interactions (unlike vitamin k antagonists), and they do not require parenteral administration (unlike heparins)...
November 2015: European Journal of Haematology
Louis Kwong, Alexander G G Turpie
Venous thromboembolism (VTE) is a potential cause of morbidity and mortality in patients after major orthopaedic surgery. Based on the results of the international phase III RECORD (Regulation of Coagulation in Orthopaedic Surgery to Prevent Deep Vein Thrombosis and Pulmonary Embolism) program, the oral, direct Factor Xa inhibitor rivaroxaban has been approved in many countries for the prevention of VTE after elective hip arthroplasty or knee arthroplasty. However, study results of randomized controlled trials may have limited generalizability to routine clinical practice in unselected patients...
May 2015: Current Orthopaedic Practice
B Hohendorff, F Biber, H Sauer, J Franke
A 64-year-old man suffered from acute carpal tunnel syndrome of his right hand without explainable reason. An emergency operation drained a pronounced haematoma. There is a strong suspicion this was a bleeding complication related to taking rivaroxaban (Xarelto(®)).
June 2016: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
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