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Total 209 results found since Jan 2013.

Choosing Non-Vitamin K Antagonist Oral Anticoagulants: Practical Considerations We Need to Know.
CONCLUSION: NOACs provide a convenient and safe alternative to warfarin and may result in improved therapeutic outcomes for patients with NVAF or VTE. The use of NOACs in other indications and patient populations is under investigation, and clinical trials investigating their use in acute coronary syndrome, medically ill patients, percutaneous coronary intervention, cardioversion, catheter ablation, coronary arterial disease, and heart failure have been announced. PMID: 27999513 [PubMed]
Source: Ochsner Journal - December 23, 2016 Category: Journals (General) Tags: Ochsner J Source Type: research

Comment Cerebral amyloid angiopathy and implications for atrial fibrillation management
Atrial fibrillation, the most common arrhythmia in adults, will increase in prevalence as the population ages.1 The risk of embolic stroke in atrial fibrillation also increases with age. Treatments for the prevention of embolic stroke include warfarin, direct oral anticoagulant agents, and non-anticoagulation strategies such as left atrial appendage occlusion.1 Current scores to estimate the risk of ischaemic stroke (CHA2DS2-VaSc score) or haemorrhage (HAS-BLED score) help guide intervention, but do not account for cerebral amyloid angiopathy (CAA), a prevalent, but overlooked condition.
Source: LANCET - June 29, 2017 Category: General Medicine Authors: Christopher V DeSimone, Jonathan Graff-Radford, Majd A El-Harasis, Alejandro A Rabinstein, Samuel J Asirvatham, David R Holmes Tags: Comment Source Type: research

Non-Vitamin K Antagonist Oral Anticoagulants in the Treatment of Atrial Fibrillation.
Abstract Atrial fibrillation (AF) increases a patient's stroke risk four- to five-fold. Anticoagulation with the vitamin K antagonist (VKA) warfarin reduces the risk of stroke by 67%, but warfarin carries a significant risk of major bleeding and has unpredictable pharmacodynamics with a narrow therapeutic window, necessitating frequent monitoring of its anticoagulant effect. The non-vitamin K antagonist oral anticoagulants (NOACs) dabigatran, rivaroxaban, apixaban, and edoxaban provide more predictable anticoagulant activity than warfarin with a lower risk of major bleeding, and each is noninferior to warfarin for...
Source: Annual Review of Medicine - November 26, 2018 Category: General Medicine Authors: Fanaroff AC, Ohman EM Tags: Annu Rev Med Source Type: research

Corrigendum to “Effectiveness and Safety of Oral Anticoagulants in Adults with Non-valvular Atrial Fibrillation Patients and Concomitant Coronary/Peripheral Artery Disease” American Journal of Medicine 131:09 (2018): 1074-1085.e4
There were 33,269 apixaban-warfarin, 9,345 dabigatran-warfarin, and 42,156 rivaroxaban-warfarin matched pairs, with a median follow-up of 4-5 months. Compared with warfarin, apixaban was associated with lower rates of stroke/systemic embolism (hazard ratio [HR] 0.52; 95% confidence interval [95% CI], 0.43-0.62), major bleeding (HR 0.60; 95% CI, 0.55-0.66) and stroke/myocardial infarction/all-cause mortality (HR 0.70; 95%CI, 0.66-0.74); dabigatran was associated with lower rates of major bleeding (HR: 0.73; 95% CI, 0.62-0.85); dabigatran and rivaroxaban were associated with lower rates of stroke/myocardial infarction/all-ca...
Source: The American Journal of Medicine - August 4, 2020 Category: General Medicine Authors: Renato D. Lopes, Jan Steffel, Manuela Di Fusco, Allison Keshishian, Xuemei Luo, Xiaoyan Li, Cristina Masseria, Melissa Hamilton, Keith Friend, Kiran Gupta, Jack Mardekian, Xianying Pan, Onur Baser, W. Schuyler Jones Tags: Corrigendum Source Type: research

Department of Error Department of Error
Lopes RD, Al-Khatib SM, Wallentin L, et al. Efficacy and safety of apixaban compared with warfarin according to patient risk of stroke and of bleeding in atrial fibrillation: a secondary analysis of a randomised controlled trial. Lancet 2012; 380: 1749–58—In table 3 and table 5 of this Article (Nov 17), the %s per person-year in the ischaemic stroke (overall results) row were incorrect. The values should have been 0·84% (apixaban) and 0·82% (warfarin) in both tables. These corrections have been made to the online version as of Jan 18, 2013.
Source: LANCET - January 18, 2013 Category: Journals (General) Authors: The Lancet Tags: Department of Error Source Type: research

Factor Xa inhibitors versus vitamin K antagonists for preventing cerebral or systemic embolism in patients with atrial fibrillation.
CONCLUSIONS: Factor Xa inhibitors significantly reduced the number of strokes and systemic embolic events compared with warfarin in patients with AF. Factor Xa inhibitors also seem to reduce the number of major bleedings and ICHs compared with warfarin, though the evidence for a reduction of major bleedings is somewhat less robust. There is currently no conclusive evidence to determine which factor Xa inhibitor is more effective and safer for long-term anticoagulant treatment of patients with AF as head-to-head studies of the different factor Xa inhibitors have not yet been performed. PMID: 23925867 [PubMed - as supplied by publisher]
Source: Cochrane Database of Systematic Reviews - August 8, 2013 Category: Journals (General) Authors: Bruins Slot KM, Berge E Tags: Cochrane Database Syst Rev Source Type: research

Comment Warfarin or novel oral anticoagulants for atrial fibrillation?
Stroke prevention is central to the management of atrial fibrillation and, until recently, the focus was to identify high-risk patients who would be given a so-called inconvenient drug, warfarin. Nowadays, the landscape for stroke prevention has changed with the availability of novel oral anticoagulants, and an increased appreciation that vitamin K antagonists (eg, warfarin) work best with high-quality anticoagulation control (shown by the average individual time in therapeutic range at an international normalised ratio of 2·0–3·0).
Source: LANCET - March 14, 2014 Category: Journals (General) Authors: Torben Bjerregaard Larsen, Gregory Y H Lip Tags: Comment Source Type: research

Articles Comparison of the efficacy and safety of new oral anticoagulants with warfarin in patients with atrial fibrillation: a meta-analysis of randomised trials
This meta-analysis is the first to include data for all four new oral anticoagulants studied in the pivotal phase 3 clinical trials for stroke prevention or systemic embolic events in patients with atrial fibrillation. New oral anticoagulants had a favourable risk–benefit profile, with significant reductions in stroke, intracranial haemorrhage, and mortality, and with similar major bleeding as for warfarin, but increased gastrointestinal bleeding. The relative efficacy and safety of new oral anticoagulants was consistent across a wide range of patients.
Source: LANCET - March 14, 2014 Category: Journals (General) Authors: Christian T Ruff, Robert P Giugliano, Eugene Braunwald, Elaine B Hoffman, Naveen Deenadayalu, Michael D Ezekowitz, A John Camm, Jeffrey I Weitz, Basil S Lewis, Alexander Parkhomenko, Takeshi Yamashita, Elliott M Antman Tags: Articles Source Type: research

New versus Traditional Approaches to Oral Anticoagulation in Patients with Atrial Fibrillation
Abstract: For clinicians, atrial fibrillation (AFib) is not a disease that will probably be “cured” at some point during their professional lifetime. (online video available at: http://education.amjmed.com/video.php?event_id=445&stage_id=5&vcs=1). AFib is a condition that occurs in association with aging, affecting as many as 1 in 10 patients by the time they reach age 85, and therefore all physicians who read The American Journal of Medicine should be aware of AFib—its etiology, how to recognize it, and with some idea of how it is treated. Perhaps the most important aspect of AFib, however, is as a risk factor for...
Source: The American Journal of Medicine - March 24, 2014 Category: Journals (General) Authors: James A. Reiffel Tags: CME multimedia activities Source Type: research

Anticoagulation versus placebo for heart failure in sinus rhythm.
CONCLUSIONS: Based on the two major randomised trials (HELAS 2006; WASH 2004), there is no convincing evidence that oral anticoagulant therapy modifies mortality or vascular events in patients with heart failure and sinus rhythm. Although oral anticoagulation is indicated in certain groups of patients with heart failure (for example those with atrial fibrillation), the available data does not support the routine use of anticoagulation in heart failure patients who remain in sinus rhythm. PMID: 24683002 [PubMed - as supplied by publisher]
Source: Cochrane Database of Systematic Reviews - March 28, 2014 Category: Journals (General) Authors: Lip GY, Shantsila E Tags: Cochrane Database Syst Rev Source Type: research

Analysis of the Cochrane Review: Direct Thrombin Inhibitors versus Vitamin K Antagonists for Preventing Cerebral or Systemic Embolism in People with Non-Valvular Atrial Fibrillation. Cochrane Database Syst Rev. 2014,3:CD009893.
Abstract Ischemic stroke is one of the most important complications of lone (non-valvular) atrial fibrillation. Its prevention is usually accomplished through oral anticoagulation. Until a few years ago warfarin was the most used agent, but recently two new pharmacologic classes have been introduced for stroke prevention in these patients: oral direct thrombin inhibitors (dabigatran and ximelagatran) and oral factor Xa inhibitors (rivaroxaban, apixaban and edoxaban). In this systematic review, oral direct thrombin inhibitors were compared with warfarin for efficacy and safety. The results indicate that there is no...
Source: Acta Medica Portuguesa - March 1, 2014 Category: Journals (General) Authors: Vaz Carneiro A, Costa J Tags: Acta Med Port Source Type: research

Correspondence New oral anticoagulants in patients with atrial fibrillation
From a meta-analysis of four studies, Christian Ruff and colleagues concluded that use of new oral anticoagulants (NOACs) in patients with atrial fibrillation results in a decreased incidence of stroke and mortality when compared with warfarin. However, the mean time in therapeutic range (TTR) was less than 65% in the warfarin group (). A recent registry study reported a TTR of more than 75% with warfarin, indicating that medical care in these randomised trials was disappointing. In patients with atrial fibrillation, a 10% increase in the time spent out of the therapeutic range is associated with substantial increased risk...
Source: LANCET - July 4, 2014 Category: Journals (General) Authors: Rahman Shah, Omer Jamy, Khalid Matin Tags: Correspondence Source Type: research

Characteristics affecting oral anticoagulant therapy choice among patients with non-valvular atrial fibrillation: a retrospective claims analysis
The objective of this study was to identify patient, healthcare provider, and health plan factors associated with dabigatran versus warfarin use among NVAF patients. Methods: Administrative claims data from patients with>=2 NVAF medical claims in the HealthCore Integrated Research Database between 10/1/2009 and 10/31/2011 were analyzed. During the study intake period (10/1/2010 - 10/31/2011), dabigatran patients had>=2 dabigatran prescriptions, warfarin patients had>=2 warfarin and no dabigatran prescriptions, and the first oral anticoagulant (OAC) prescription date was the index date. Continuous enrollment for 12 months p...
Source: BMC Health Services Research - July 17, 2014 Category: Journals (General) Authors: Azza AbuDaggaJudith StephensonAn-Chen FuWinghan KwongHiangkiat TanWilliam Weintraub Source Type: research

Changing practice of anticoagulation: will target-specific anticoagulants replace warfarin?
Abstract The target-specific oral anticoagulants are a class of agents that inhibit factor Xa or thrombin. They are effective and safe compared to warfarin for the prevention of stroke and systemic embolism in patients with atrial fibrillation and for the treatment of venous thromboembolism, and they are comparable to low-molecular-weight heparin for thromboprophylaxis after hip or knee arthroplasty. For other indications, however, such as the prevention of stroke in patients with mechanical heart valves, initial studies have been unfavorable for the newer agents, leaving warfarin the anticoagulant of choice. Furt...
Source: Annual Review of Medicine - January 14, 2015 Category: Journals (General) Authors: Arepally GM, Ortel TL Tags: Annu Rev Med Source Type: research

Real world effectiveness of warfarin among ischemic stroke patients with atrial fibrillation: observational analysis from Patient-Centered Research into Outcomes Stroke Patients Prefer and Effectiveness Research (PROSPER) study
Source: BMJ - July 31, 2015 Category: Journals (General) Source Type: research