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Published on: February 26, 2013
Nonvitamin K Oral Anticoagulants in Patients With Atrial Fibrillation and Severe Renal Dysfunction
Maria Mahmood1, Gregory Y H Lip2
1Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom.
Insights
Atrial fibrillation (AF) and chronic kidney disease (CKD) often coexist. This review examines non-vitamin K antagonist oral anticoagulants (NOACs) for stroke prevention in CKD patients, focusing on those with severe or end-stage renal disease.
Area of Science:
- Nephrology
- Cardiology
- Pharmacology
Background:
- Atrial fibrillation (AF) and chronic kidney disease (CKD) are prevalent, particularly in aging populations with comorbidities.
- A bidirectional relationship exists between AF and CKD, with each condition potentially worsening the other.
- CKD patients with AF face elevated risks of stroke, mortality, cardiac events, and bleeding.
Purpose of the Study:
- To review the evidence for non-vitamin K antagonist oral anticoagulants (NOACs) in patients with chronic kidney disease (CKD).
- To summarize current knowledge on the efficacy and safety of NOACs for preventing AF-related stroke and systemic embolism in severe and end-stage renal disease.
Main Methods:
- Literature review of studies investigating NOACs in patients with varying degrees of renal dysfunction.
- Analysis of data on stroke prevention, systemic embolism, and bleeding events associated with NOAC use in CKD.
Main Results:
- NOACs demonstrate efficacy in mild-to-moderate renal dysfunction.
- Limited data currently exists on NOAC use in severe and end-stage renal disease.
- Further research is needed to establish optimal NOAC use in advanced CKD stages.
Conclusions:
- Stroke prevention in AF patients with CKD is crucial.
- The role of NOACs in severe and end-stage renal disease requires further investigation.
- Evidence-based guidelines are needed for NOAC prescription in advanced CKD.
Abstract:
Both atrial fibrillation (AF) and chronic kidney disease (CKD) are highly prevalent, especially with increasing age and associated comorbidities, such as hypertension, diabetes, heart failure, and vascular disease. The relationship between both AF and CKD seems to be bidirectional: CKD predisposes to AF while onset of AF seems to lead to progression of CKD. Stroke prevention is the cornerstone of AF management, and AF patients with CKD are at higher risk of stroke, mortality, cardiac events, and bleeding. Stroke prevention requires use of oral anticoagulants, which are either vitamin K antagonists (eg, warfarin), or the nonvitamin K antagonist oral anticoagulants (NOACs). While NOACs have been shown to be effective in mild-to-moderate renal dysfunction, there are a paucity of data regarding NOACs in severe and end-stage renal dysfunction. This review first discusses the evidence for NOACs in CKD. Second, we summarize the current knowledge regarding the efficacy and safety of NOACs to prevent AF-related stroke and systemic embolism in severe and end-stage renal disease.
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