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Updated: Jun 15, 2025

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
Atrial fibrillation burden: Stepping beyond the categorical characterization
Ioannis Doundoulakis1, Sotirios Nedios2, Stefanos Zafeiropoulos3
1Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, University Hospital Brussels-Free University Brussels, European Reference Networks Guard-Heart, Brussels, Belgium.
Atrial fibrillation (AF) burden, the time spent in AF, is a key metric challenging traditional classifications. Future research aims to define thresholds and personalize AF management strategies.
Area of Science:
- Cardiology
- Medical Technology
Background:
- Traditional atrial fibrillation (AF) classifications (paroxysmal, persistent, permanent) are challenged by continuous monitoring.
- AF burden, time spent in AF, is an emerging crucial metric.
Purpose of the Study:
- Review the evolving landscape of AF burden.
- Assess measurement methods, diagnostic modalities, and outcome impacts.
- Explore AF burden's role in quality of life and personalized management.
Main Methods:
- Literature review of AF burden measurement and impact.
- Analysis of diagnostic technologies and clinical guidelines.
- Evaluation of challenges and future research directions.
Main Results:
- AF burden is increasingly recognized as a continuous variable, not just categorical.
- Current guidelines suggest combining AF burden with clinical scores (e.g., CHA2DS2-VASc), but this is debated.
- Continuous monitoring offers advancements but requires defined clinically relevant thresholds.
Conclusions:
- Refining AF burden thresholds is essential for personalized management.
- Future trials should focus on AF burden reduction and its impact on patient outcomes.
- Personalized strategies integrating AF burden are crucial for improved patient care.
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