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Updated: Jun 5, 2026

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
[Is atrial fibrillation an independent marker of cardiovascular risk?]
G Moubarak1, A Messali, F Extramiana
1Service de Cardiologie, Centre de Référence Maladies Cardiaques Héréditaires, Université Paris 7, Hôpital Lariboisière, France. antoine.leenhardt@lrb.aphp.fr
Insights
Atrial fibrillation (AF) is common in older adults. While lone AF may not increase mortality risk, AF with comorbidities negatively impacts survival and morbidity.
Area of Science:
- Cardiology
- Geriatric Medicine
Context:
- Atrial fibrillation (AF) is the most common cardiac arrhythmia, with prevalence increasing with age.
- AF is associated with stroke and heart failure, but its direct impact on mortality is debated.
- Distinguishing AF's independent effect from comorbidities is challenging.
Purpose:
- To clarify the relationship between atrial fibrillation and mortality.
- To assess the impact of lone AF versus AF with comorbidities on patient outcomes.
- To review current and potential future therapeutic strategies for AF management.
Summary:
- Lone AF, without underlying heart disease, appears not to be an independent predictor of mortality.
- In patients with comorbidities like hypertension or heart failure, AF significantly worsens survival and morbidity.
- Current antiarrhythmic drugs have not demonstrated mortality benefits in AF patients.
Impact:
- Highlights the critical role of comorbidities in AF-related outcomes.
- Suggests that managing associated conditions is key to improving prognosis in AF patients.
- Points to novel treatments like new antiarrhythmic agents and catheter ablation as promising for reducing AF burden and improving patient survival.
Abstract:
Atrial fibrillation (AF) is the most frequent cardiac arrhythmia and its prevalence rises with age. AF may cause stroke and heart failure but the relationship between AF and mortality is less clear. It is difficult to determine if cardiovascular events in patients with AF are attributable to the arrhythmia itself or if they are merely related to the comorbidities frequently associated with AF. Review of the literature suggests that lone AF (without structural heart disease), a rare clinical entity except in young patients, is not an independent risk factor for mortality. On the other hand, if illnesses usually associated with AF are present (hypertension, heart failure...), AF has a negative impact on outcome in terms of survival and morbidity. Current antiarrhythmic medications have not shown reduction in mortality of AF patients, but new agents and catheter ablation are promising paths to explore in order to decrease AF burden.
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