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High rates of oral anticoagulation in atrial fibrillation patients observed in a large multi-specialty health system in the Northeast
ConclusionsWe show dramatically increased OAC usage among patients with AF and that NOACs comprise the large majority of OACs compared with previous studies. This suggests an association between widespread adoption of NOACs and increased oral anticoagulation rates. Future directions include assessing barriers to oral anticoagulation and developing interventions to reduce disparity in OAC use between clinics.
Source: Journal of Interventional Cardiac Electrophysiology - July 21, 2023 Category: Cardiology Source Type: research

Comparison of Dabigatran Versus Warfarin Treatment for the Prevention of New Cerebral Lesions in Valvular Atrial Fibrillation
Atrial fibrillation is one of the most common arrhythmias in the United States and is associated with an increased risk of thromboembolic events.1 The American Heart Association/American College of Cardiology/Heart Rhythm Society guidelines recommend oral anticoagulation with either warfarin or oral non-vitamin K antagonists for patients diagnosed with atrial fibrillation with a high risk for ischemic stroke based on the CHA2DS2-VASc score.2 The recently published article “Comparison of Dabigatran Versus Warfarin Treatment for Prevention of New Cerebral Lesions in Valvular Atrial Fibrillation” discussed the efficacy of...
Source: The American Journal of Cardiology - October 7, 2022 Category: Cardiology Authors: Marwa S.H. Abrahim, Olufemi Sofola-James, Zeina Bani Hani Source Type: research

Can I use DOAC in a patient with renal disease?
Case A 76-year-old man is diagnosed with non-valvular atrial fibrillation. His comorbid conditions are hypertension, diabetes complicated by neuropathy, and chronic kidney disease stage 3. His current medications include metformin, lisinopril, gabapentin, and aspirin. His most recent laboratories showed a creatinine 1.8, creatinine clearance (CrCl) 35 mL/min, hemoglobin 11g/dL, and international normalized ratio 1.0. His congestive heart failure, hypertension, age, diabetes, stroke, vascular disease, and sex (CHADSVASc) score is 4. Which medication should we use to prevent stroke in this patient?  Brief overview of the is...
Source: The Hospitalist - February 3, 2022 Category: Hospital Management Authors: Ronda Whitaker Tags: Renal & Genitourinary Source Type: research

Drugs in phase I and II clinical development for the prevention of stroke in patients with atrial fibrillation
Expert Opin Investig Drugs. 2021 Mar 8. doi: 10.1080/13543784.2021.1897786. Online ahead of print.ABSTRACTINTRODUCTION: Atrial fibrillation is the most frequently diagnosed cardiac arrhythmia globally and is associated with ischemic stroke and heart failure. Patients with atrial fibrillation are typically prescribed long term anticoagulants in the form of either vitamin K antagonists or non-vitamin K antagonist oral anticoagulants; however, both carry a potential risk of adverse bleeding.AREAS COVERED: This paper sheds light on emerging anticoagulant agents which target clotting factors XI and XII, or their activated forms...
Source: Expert Opinion on Investigational Drugs - March 8, 2021 Category: Drugs & Pharmacology Authors: Robert Bentley Lewis J Hardy Laura J Scott Parveen Sharma Helen Philippou Gregory Y H Lip Source Type: research

Meta-analysis of the efficacy and safety of non-vitamin K antagonist oral anticoagulants with warfarin in Latin American patients with atrial fibrillation
Conclusions: Our meta-analysis suggested that the use of NOACs was at least non-inferior to warfarin use for stroke prevention in Latin American patients with AF.
Source: Medicine - May 1, 2020 Category: Internal Medicine Tags: Research Article: Systematic Review and Meta-Analysis Source Type: research

Clinical Outcome Following Reinstitution of Anticoagulation after Major Gastrointestinal Bleed: A Single Institutional Analysis
Conclusion: Given the rising national trend on the use of anticoagulants for various medical necessities, it is imperative that a safe and efficient process be devised on reinstitution of anticoagulation post MGIB to guide Clinicians. Although our study represents a single institutional analysis, it concurs with recent studies that early resumption of anticoagulant following stabilization of MGIB is associated with lower thromboembolic events. Timing for resumption depends largely on the medical reason for anticoagulation; reinstitution by day 7 appear safe for patients on mechanical valve whereas after day 12 maybe approp...
Source: Blood - November 21, 2018 Category: Hematology Authors: Ezekwudo, D. E., Gaikazian, S., Anusim, N., Konde, A. S., Zakalik, D., Huben, M. T., Stender, M., Anderson, J., Jaiyesimi, I. Tags: 332. Antithrombotic Therapy: Poster I Source Type: research

Testing and monitoring direct oral anticoagulants
Direct oral anticoagulants (DOACs) have significantly improved the care of patients requiring anticoagulation. With similar or better efficacy and safety outcomes and easier use in the outpatient setting compared with the standard-of-care vitamin K antagonists and low molecular weight heparin, DOACs are now endorsed as first-line treatment of indications including prevention of stroke and systemic embolism in nonvalvular atrial fibrillation and treatment of venous thromboembolism. DOACs are easy-to-use oral agents that offer simple dosing and short half-lives, with no need to test levels because of the wide therapeutic win...
Source: Blood - November 8, 2018 Category: Hematology Authors: Connors, J. M. Tags: Perspectives, Thrombosis and Hemostasis Source Type: research

A Review of the Use of Direct Oral Anticoagulant Use in Orthotopic Heart Transplantation Recipients
Over 60 years ago, the vitamin K antagonist (VKA) warfarin was approved and remained the only oral anticoagulation agent until recently [1]. Currently, within North America and Europe there are four DOACs available. Dabigatran, first approved in Europe and Canada in 2008, then in the United States of America in 2010, followed by rivaroxaban, apixaban, and most recently edoxaban. The introduction of direct oral anticoagulants (DOACs) has been a major advancement and these agents are the preferred to VKAs for many indications [2 –5], including stroke prevention in nonvalvular atrial fibrillation (NVAF), acute treatment and...
Source: Transplantation Reviews - April 16, 2018 Category: Transplant Surgery Authors: Rosaleen Boswell, Glen J. Pearson Tags: Review article Source Type: research

Direct Oral Anticoagulants in End-Stage Renal Disease
Semin Thromb Hemost DOI: 10.1055/s-0037-1621715Patients with end-stage renal disease (ESRD) were excluded from pivotal clinical trials with oral anticoagulants. While such patients are at an increased risk of venous and arterial thromboembolism, their risk of bleeding is also elevated. It is thus of little surprise that stroke prevention with vitamin K antagonists (VKAs) in ESRD patients with atrial fibrillation is controversial, with observational evidence ranging from beneficial to harmful. This uncertainty extends to the less studied use of VKAs for venous thromboembolism in ESRD. The direct oral anticoagulants (DOACs) ...
Source: Seminars in Thrombosis and Hemostasis - January 10, 2018 Category: Hematology Authors: Klil-Drori, Adi J. Tagalakis, Vicky Tags: Review Article Source Type: research