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Published on: February 28, 2012
Oral anticoagulation in patients with cardiomyopathy or heart failure in sinus rhythm
P Pullicino1, J L P Thompson, J P Mohr
1Kent Institute of Medicine and Health Sciences, University of Kent, Canterbury, Kent, UK. P.Pullicino@kent.ac.uk
Insights
Anticoagulation benefits are established in atrial fibrillation (AF), but evidence is lacking for cardiomyopathy (CM) in sinus rhythm. More research is needed to determine if antithrombotic drugs are beneficial for patients with CM.
Area of Science:
- Cardiology
- Neurology
- Pharmacology
Background:
- Atrial fibrillation (AF) management includes anticoagulation, but evidence for cardiomyopathy (CM) in sinus rhythm is limited.
- Cardiomyopathy (CM) poses a significant stroke risk, similar to historical AF risks.
- Current understanding of stroke risk and antithrombotic indications in CM mirrors early AF research.
Purpose of the Study:
- To review current knowledge on stroke risk in cardiomyopathy (CM).
- To compare stroke risk and antithrombotic indications in CM with those in AF.
- To highlight the need for evidence-based treatment guidelines for CM.
Main Methods:
- Literature review of prospective randomized studies.
- Analysis of risk factors for stroke in CM.
- Comparison of antithrombotic agent indications in CM and AF.
Main Results:
- Stroke risk and antithrombotic indications in CM are comparable to AF before dedicated treatment studies.
- Existing data suggests a potential need for antithrombotic therapy in CM.
- A knowledge gap exists regarding the efficacy and safety of antithrombotics in CM.
Conclusions:
- Prospective randomized trials are essential to establish the role of antithrombotic drugs in CM.
- Evidence-based guidelines are needed for antithrombotic therapy in cardiomyopathy patients.
- Further research will clarify optimal stroke prevention strategies for CM.
Background:
Despite many prospective randomized studies defining the benefits of anticoagulation in atrial fibrillation (AF), there have been no adequate studies in cardiomyopathy (CM) in sinus rhythm.
Methods:
We review the current knowledge of the risk of stroke in CM, left ventricular systolic dysfunction and heart failure as well as the indications for antithrombotic agents and compare this with AF.
Results:
The current knowledge of risk factors for stroke and indications for antithrombotic agents in CM is similar to that of AF prior to the treatment studies of the 1980s-1990s.
Conclusion:
Prospective randomized trial data are urgently needed to determine the role of antithrombotic drugs in CM.
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