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Updated: Jan 15, 2026

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

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Beyond recurrence: redefining atrial fibrillation burden as a prognostic and therapeutic endpoint

Andrea Ballatore1,2, Carola Griffith Brookles1,2, Mark O'Neill3,4

  • 1Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza Hospital, Turin, Italy.

Heart (British Cardiac Society)
|October 7, 2025
PubMed

Insights

Atrial fibrillation (AF) burden, the percentage of time spent in arrhythmia, offers a more accurate measure of treatment success than traditional methods. Further research is needed to standardize its definition and application in clinical practice.

Area of Science:

  • Cardiology
  • Medical Technology

Background:

  • Traditional atrial fibrillation (AF) classification by episode duration and binary recurrence assessment (e.g., >30s) have limitations.
  • Current methods may not accurately reflect time in arrhythmia or correlate well with clinical outcomes after interventions like catheter ablation (CA).

Purpose of the Study:

  • To review the impact and prognostic value of atrial fibrillation burden.
  • To highlight challenges, including the lack of a standardized definition and consensus on its clinical use.
  • To explore the role of advanced monitoring strategies, including wearables and AI.

Main Methods:

  • Literature review summarizing current knowledge on AF burden.
  • Discussion of emerging evidence on AF burden's clinical relevance.
  • Exploration of future monitoring technologies.

Main Results:

  • AF burden, defined as the percentage of time in arrhythmia, shows promise in reflecting CA outcomes and predicting prognosis in certain patient groups.
  • Existing definitions are inconsistent, necessitating standardization.
  • Continuous monitoring strategies, potentially enhanced by wearables and AI, are crucial.

Conclusions:

  • AF burden may offer a more precise assessment of AF management than traditional metrics.
  • Standardization of AF burden definition and integration into clinical practice are essential.
  • Technological advancements in monitoring hold significant potential for improved AF management.

Keywords:
Atrial FibrillationCatheter Ablation

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