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Updated: Jun 20, 2026

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
Lone atrial fibrillation: what do we know?
Dariusz Kozlowski1, Szymon Budrejko, Gregory Y H Lip
1Department of Hypertension, University Hospital No 2 Lodz, Medical University of Lodz, Poland, Zeromskiego 113, Lodz 90-549, Poland.
Insights
Lone atrial fibrillation (AF), once thought benign, requires thorough evaluation. Recent data suggest lone AF patients face risks comparable to the general AF population, necessitating a review of novel risk factors.
Area of Science:
- Cardiology
- Clinical Epidemiology
Background:
- Atrial fibrillation (AF) is the most common cardiac arrhythmia.
- Lone AF is a diagnosis of exclusion, often associated with cardiovascular disease.
- Historically, lone AF was considered to have a favorable prognosis regarding thromboembolism and mortality.
Purpose of the Study:
- To review the clinical epidemiology of lone AF.
- To discuss current management strategies for lone AF.
- To explore novel risk factors associated with lone AF.
Main Methods:
- Review of existing literature on lone AF.
- Analysis of clinical data regarding prognosis and risk factors.
- Inclusion of familial, genetic, socioeconomic, lifestyle, and biochemical factors.
Main Results:
- Lone AF diagnosis requires comprehensive patient evaluation.
- Emerging evidence challenges the previously assumed good prognosis of lone AF.
- Novel risk factors beyond traditional cardiovascular disease are implicated.
Conclusions:
- Lone AF management requires careful consideration of evolving risk data.
- Further research into novel risk factors is crucial for personalized patient care.
- The prognosis of lone AF may be less favorable than previously believed.
Abstract:
Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Despite the common association of AF with cardiovascular disease, some patients can be classified as 'lone AF'. The latter is essentially a diagnosis of exclusion, and should be preceded by careful evaluation, including thorough collection of medical history, physical examination, blood pressure measurement, laboratory tests, ECG, echocardiography and, possibly, chest x-ray and exercise testing. Lone AF patients were initially thought to have a good prognosis with respect to thromboembolism and mortality, compared with the general AF population, but more recent data suggest otherwise. This review focuses on the clinical epidemiology and management aspects of lone AF, as well as various associated novel risk factors, such as familial, genetic and socioeconomic factors, alcohol, sports activity and biochemical markers.
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