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Related Experiment Videos

Multisite electrode pacing for prevention of atrial fibrillation

S Saksena1, P Delfaut, A Prakash

  • 1Arrhythmia & Pacemaker Service, Eastern Heart Institute, Passaic, New Jersey, USA.

Journal of Cardiovascular Electrophysiology
|September 4, 1998
PubMed
Summary

Multisite atrial pacing effectively prevents atrial fibrillation (AF) recurrence in patients with sick sinus syndrome. This advanced pacing strategy reduces AF induction and improves rhythm control, decreasing the need for anticoagulation and antiarrhythmic drugs.

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Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Devices

Background:

  • Single site atrial pacing shows promise for atrial fibrillation (AF) prevention in sick sinus syndrome.
  • Multisite atrial pacing (MAP) methods are being evaluated for AF and atrial flutter prevention.
  • Clinical studies suggest MAP offers incremental benefits over single-site pacing.

Purpose of the Study:

  • To evaluate the efficacy of multisite atrial pacing for AF prevention.
  • To assess the impact of MAP on rhythm control and need for concomitant therapies.
  • To report long-term clinical outcomes and safety of MAP.

Main Methods:

  • Long-term clinical experience with 30 patients undergoing multisite atrial pacing for paroxysmal and chronic drug-refractory AF.
  • Assessment of AF recurrence rates, rhythm control, and need for anticoagulation, antiarrhythmic drugs, and cardioversion.

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  • Monitoring for lead-related complications.

    • Main Results:

    • 78% of patients were AF-free at 1 year, 63% at 2 years, and 56% at 3 years.
    • Rhythm control was achieved in 86% of patients over 3 years.
    • Significant reductions in anticoagulation, antiarrhythmic drugs, and cardioversion therapies were observed; no coronary sinus lead complications.

    Conclusions:

    • Multisite atrial pacing is an effective strategy for AF prevention and rhythm control in selected patients.
    • MAP reduces AF inducibility by shortening atrial activation times and minimizing refractoriness dispersion.
    • Ongoing randomized trials will further quantify the benefits of MAP for AF prevention.