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Condition: Atrial Fibrillation
Nutrition: Vitamin K

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Total 1538 results found since Jan 2013.

Effectiveness and Safety of Apixaban, Dabigatran, and Rivaroxaban Versus Warfarin in Patients With Nonvalvular Atrial Fibrillation and Previous Stroke or Transient Ischemic Attack Clinical Sciences
Conclusions—Results from our study of the 3 NOACs versus warfarin in nonvalvular atrial fibrillation patients with a previous history of stroke/transient ischemic attack are relatively consistent with their respective phase III trials and previous stroke/transient ischemic attack subgroup analyses. All NOACs seemed no worse than warfarin in respect to ischemic stroke, ICH, or major bleeding risk.
Source: Stroke - July 24, 2017 Category: Neurology Authors: Craig I. Coleman, W. Frank Peacock, Thomas J. Bunz, Mark J. Alberts Tags: Arrhythmias, Quality and Outcomes, Intracranial Hemorrhage, Ischemic Stroke Original Contributions Source Type: research

Real-World Setting Comparison of Nonvitamin-K Antagonist Oral Anticoagulants Versus Vitamin-K Antagonists for Stroke Prevention in Atrial Fibrillation Clinical Sciences
Conclusions—This meta-analysis confirms the main findings of the randomized controlled trials of dabigatran, rivaroxaban, and apixaban in the real-world setting and, hence, strengthens their validity.
Source: Stroke - August 28, 2017 Category: Neurology Authors: George Ntaios, Vasileios Papavasileiou, Konstantinos Makaritsis, Konstantinos Vemmos, Patrik Michel, Gregory Y.H. Lip Tags: Arrhythmias, Secondary Prevention, Meta Analysis, Mortality/Survival, Ischemic Stroke Original Contributions Source Type: research

Fibrin Clot Permeability as a Predictor of Stroke and Bleeding in Anticoagulated Patients With Atrial Fibrillation Clinical Sciences
Background and Purpose—Formation of denser fiber networks has been reported in atrial fibrillation and ischemic stroke. In this longitudinal cohort study, we evaluated whether fibrin clot density may predict thromboembolic and bleeding risk in patients with atrial fibrillation on vitamin K antagonists.Methods—In 236 patients with atrial fibrillation receiving vitamin K antagonists treatment, we measured ex vivo plasma clot permeability (Ks), a measure of the pore size in fibrin networks.Results—During a median follow-up of 4.3 (interquartile range, 3.7–4.8) years, annual rates of ischemic stroke or transient ischem...
Source: Stroke - September 25, 2017 Category: Neurology Authors: Leszek Drabik, Paweł Wołkow, Anetta Undas Tags: Atrial Fibrillation, Ischemic Stroke, Thrombosis Original Contributions Source Type: research

Vitamin K antagonist-experienced patients with a history of stroke/transient ischaemic attack who switched from warfarin to dabigatran increased their rate of recurrent stroke/transient ischaemic attack compared with those on warfarin
Commentary on: Larsen TB, Rasmussen LH, Gorst-Rasmussen A, et al. Dabigatran and warfarin for secondary prevention of stroke in atrial fibrillation patients: a nationwide cohort study. Am J Med 2014;127:1172–8 . Context Randomised trials have shown that patients with atrial fibrillation (AF) who are treated with a non-vitamin K antagonist oral anticoagulant (NOAC), compared with warfarin, have similar or lower rates of stroke and major bleeding, markedly reduced rates of intracranial bleeding and a consistent pattern of reduced mortality.1 Dabigatran 150 mg two times a day is the only NOAC that can significantly...
Source: Evidence-Based Medicine - May 22, 2015 Category: Internal Medicine Authors: Eikelboom, J. W., Bosch, J. Tags: Epidemiologic studies, Time-to-event methods, Drugs: cardiovascular system, Stroke, Arrhythmias Aetiology/Harm Source Type: research

Potential new uses of non-vitamin K antagonist oral anticoagulants to treat and prevent stroke
Conclusion: There may be a role for NOACs in stroke prevention and treatment beyond atrial fibrillation. Randomized controlled trials are needed to compare NOACs to current stroke prevention and treatment strategies in certain subgroups of patients with cerebrovascular disease.
Source: Neurology - September 21, 2015 Category: Neurology Authors: Yaghi, S., Kamel, H., Elkind, M. S. V. Tags: Stroke prevention, All Cerebrovascular disease/Stroke, Infarction, Cerebral venous thrombosis VIEWS & amp;amp; REVIEWS Source Type: research

A Narrative Review of Nonvitamin K Antagonist Oral Anticoagulant Use in Secondary Stroke Prevention
The prevalence of atrial fibrillation (AF), the most common cardiac arrhythmia, increases with age, predisposing elderly patients to an increased risk of embolic stroke. With an increasingly aged population the number of people who experience a stroke every year, overall global burden of stroke, and numbers of stroke survivors and related deaths continue to increase. Anticoagulation with vitamin K antagonists (VKAs) reduces the risk of ischemic stroke in patients with AF; however, increased bleeding risk is well documented, particularly in the elderly.
Source: Journal of Stroke and Cerebrovascular Diseases - July 4, 2019 Category: Neurology Authors: Valeria Caso, Florian Masuhr Tags: Review Article Source Type: research

Non-Vitamin K Antagonist Oral Anticoagulants for Stroke Prevention in Asian Patients With Nonvalvular Atrial Fibrillation: Meta-Analysis Clinical Sciences
Conclusions— Our findings suggest that standard-dose NOACs were more effective and safer in Asians than in non-Asians, whereas low-dose NOACs performed similarly in both populations.
Source: Stroke - August 24, 2015 Category: Neurology Authors: Wang, K.-L., Lip, G. Y. H., Lin, S.-J., Chiang, C.-E. Tags: Other anticoagulants, Anticoagulants Clinical Sciences Source Type: research

Temporal Trends in Pharmacological Stroke Prevention in Patients with Acute Ischemic Stroke and Known Atrial Fibrillation
Oral anticoagulation (OAC) substantially reduces stroke risk in patients with atrial fibrillation (AF) at risk for stroke. Whether non-vitamin K-dependent oral anticoagulants (NOACs) improve OAC use in stroke prevention requires investigation.
Source: Journal of Stroke and Cerebrovascular Diseases - September 10, 2020 Category: Neurology Authors: Simon Hellwig, Ulrike Grittner, Juliane Herm, Rudi Ruschmann, Maria Konieczny, Matthias Endres, Karl Georg Haeusler Source Type: research

Intracranial Hemorrhage Among Patients With Atrial Fibrillation Anticoagulated With Warfarin or Rivaroxaban: The Rivaroxaban Once Daily, Oral, Direct Factor Xa Inhibition Compared With Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial Fibrillation Clinical Sciences
Conclusions— Among patients with atrial fibrillation treated with anticoagulation, the risk of ICH was higher among Asians, blacks, the elderly, and in those with previous stroke or transient ischemic attack, increased diastolic blood pressure, and reduced platelet count or serum albumin at baseline. The risk of ICH was significantly lower in patients with heart failure and in those who were randomized to rivaroxaban instead of warfarin. The external validity of these findings requires testing in other atrial fibrillation populations.
Source: Stroke - April 28, 2014 Category: Neurology Authors: Hankey, G. J., Stevens, S. R., Piccini, J. P., Lokhnygina, Y., Mahaffey, K. W., Halperin, J. L., Patel, M. R., Breithardt, G., Singer, D. E., Becker, R. C., Berkowitz, S. D., Paolini, J. F., Nessel, C. C., Hacke, W., Fox, K. A. A., Califf, R. M., on behal Tags: Acute Cerebral Hemorrhage, Anticoagulants Clinical Sciences Source Type: research

Analysis of Recurrent Stroke Volume and Prognosis between Warfarin and Four Non –Vitamin K Antagonist Oral Anticoagulants' Administration for Secondary Prevention of Stroke
We investigated recurrent stroke volume with nonvalvular atrial fibrillation (NVAF) patients treated with non –vitamin K antagonist oral anticoagulants (NOACs) about clinical backgrounds and number of recurrent stroke.
Source: Journal of Stroke and Cerebrovascular Diseases - October 21, 2017 Category: Neurology Authors: Yukie Kanai, Hiroaki Oguro, Nao Tahara, Hanako Matsuda, Hiroyuki Takayoshi, Shingo Mitaki, Keiichi Onoda, Shuhei Yamaguchi Source Type: research

Insights Into Direct Oral Anticoagulant Therapy Implementation of Stroke Survivors with Atrial Fibrillation in an Ambulatory Setting
Atrial fibrillation (AF) is the most common cardiac arrhythmia and increases the risk of ischemic stroke by about five times.1 Oral anticoagulation (OAC) with direct oral anticoagulants (DOAC) or vitamin K antagonists (VKA) reduces ischemic stroke risk in AF patients. Currently, DOAC (apixaban, dabigatran, edoxaban and rivaroxaban) are recommended as first-line treatment for stroke prevention in AF patients.2 Despite several advantages compared to VKA, DOAC have a short half-life of about 12 h. Missing more than 5% of intakes is associated with a higher occurrence of thromboembolic events in OAC-treated AF patients.
Source: Journal of Stroke and Cerebrovascular Diseases - December 14, 2020 Category: Neurology Authors: Valerie Albert, Alexandros A. Polymeris, Fine Dietrich, Stefan T. Engelter, Kurt E. Hersberger, Sabine Schaedelin, Philippe A. Lyrer, Isabelle Arnet Source Type: research

Acute Ischemic Stroke Outcome and Preceding Anticoagulation: Direct Oral Anticoagulants Versus Vitamin K Antagonists
Oral anticoagulation is recommended for primary and secondary prevention of cardioembolic acute ischemic stroke (AIS). In nonvalvular atrial fibrillation (AF), direct oral anticoagulants (DOAC) efficacy and safety have been largely proven and are recommended over vitamin K antagonists (VKA) by international guidelines.1-3 AIS in the setting of AF is more often disabling and leads to increased mortality compared with stroke in patients without AF.4
Source: Journal of Stroke and Cerebrovascular Diseases - February 13, 2020 Category: Neurology Authors: Sofia Fel ício Tavares, Inês Ferreira, Vanessa Chaves, Luis Flores, Cristina Correia, Jorge Almeida, Luísa Fonseca, Paulo Castro Chaves Source Type: research

Racial Disparity in the Prescription of Anticoagulants and Risk of Stroke and Bleeding in Atrial Fibrillation Patients
Background: Oral anticoagulant (OAC) therapy is proven to be effective at reducing risk of stroke in patients with atrial fibrillation (AF). However, racial minorities with AF are less likely to be prescribed vitamin K anticoagulants (VKA). There is little information on the racial disparity in the prescription of the non-vitamin K oral anticoagulants (NOACs) and the associated risks of stroke and bleeding. Methods: We used data from the Northwestern Medicine Enterprise Data Warehouse – a joint initiative across 11 Northwestern Medicine affiliated healthcare centers within metropolitan Chicago, Illinois.
Source: Journal of Stroke and Cerebrovascular Diseases - February 27, 2020 Category: Neurology Authors: Yacob G. Tedla, Sarah M. Schwartz, Philip Silberman, Philip Greenland, Rod S. Passman Source Type: research

Non-vitamin K oral anticoagulants as first-line regimen for acute ischemic stroke with non-valvular atrial fibrillation
There are various patterns in determining the choice of the first-line antithrombotic agent for acute stroke with non-valvular atrial fibrillation. We investigated the efficacy and safety of non-vitamin K oral anticoagulants as first-line antithrombotics for patients with acute stroke and non-valvular atrial fibrillation.
Source: Journal of Stroke and Cerebrovascular Diseases - August 15, 2020 Category: Neurology Authors: Chan Wook Park, Hyo Suk Nam, Ji Hoe Heo, Hyung Jong Park, Jin Kyo Choi, Hye Sun Lee, Han Kyu Na, Young Dae Kim Source Type: research

Non-vitamin-K oral anticoagulants reduce mortality, stroke and intracranial haemorrhage when compared with warfarin in randomised trials of patients with non-valvular atrial fibrillation
Commentary on: Ruff CT, Giugliano RP, Braunwald E, et al.. Comparison of the efficacy and safety of new oral anticoagulants with warfarin in patients with atrial fibrillation: a meta-analysis of randomised trials. Lancet 2014;383:955–62. Context Historically, the standard medication for stroke prevention in atrial fibrillation (AF) has been a vitamin-K antagonist (warfarin). However, several non-vitamin-K oral anticoagulants (NOACs) have been developed and shown to be at least as effective as dose-adjusted warfarin in their respective phase-3 clinical trials.1–4 These include the direct thrombin inhibitor dabig...
Source: Evidence-Based Medicine - September 15, 2014 Category: Internal Medicine Authors: Steinberg, B. A. Tags: Epidemiologic studies, Drugs: cardiovascular system, Stroke, Ischaemic heart disease, Connective tissue disease, Musculoskeletal syndromes, Diabetes, Arrhythmias Therapeutics Source Type: research