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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
28:13

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

[Comparison of three methods of antithrombotic therapy in elderly patients with nonvalvular atrial fibrillation]

V I Shevelev, S G Kanorskiĭ

    Kardiologiia
    |July 31, 2012
    PubMed

    Insights

    For elderly patients with nonvalvular atrial fibrillation (AF), dabigatran and clopidogrel offer stroke prevention comparable to warfarin but with significantly less bleeding risk. These agents are safe alternatives for antithrombotic therapy.

    Area of Science:

    • Cardiology
    • Gerontology
    • Pharmacology

    Background:

    • Nonvalvular atrial fibrillation (AF) increases stroke risk in elderly patients.
    • Warfarin has been a standard antithrombotic therapy, but carries bleeding risks.
    • Novel anticoagulants and antiplatelets offer potential alternatives.

    Purpose of the Study:

    • To compare the efficacy and safety of warfarin, dabigatran, and clopidogrel in preventing stroke in elderly patients with nonvalvular AF.
    • To evaluate bleeding complications associated with these antithrombotic agents.

    Main Methods:

    • A study involving 210 patients aged 65-80 years with nonvalvular AF.
    • Comparison of warfarin, direct thrombin inhibitor dabigatran (110 mg twice daily), and clopidogrel over 12 months.
    • Assessment of ischemic stroke rates and bleeding events.

    Main Results:

    • Dabigatran (110 mg twice daily) and warfarin showed similar rates of ischemic stroke.
    • Dabigatran was associated with significantly less bleeding compared to warfarin (2.8% vs. 16.9%, p<0.05).
    • Clopidogrel demonstrated comparable stroke prevention efficacy and safety to warfarin and dabigatran.

    Conclusions:

    • Dabigatran and clopidogrel are effective and safe alternatives to warfarin for stroke prevention in elderly patients with nonvalvular AF.
    • These newer agents may offer an improved safety profile, particularly regarding bleeding risk.

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