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Updated: Oct 7, 2025

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Published on: February 26, 2013
Atrial Fibrillation: Pathogenesis, Predisposing Factors, and Genetics
Marios Sagris1, Emmanouil P Vardas1,2, Panagiotis Theofilis1
11st Cardiology Clinic, 'Hippokration' General Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece.
Insights
Atrial fibrillation (AF) is a common heart rhythm disorder. Identifying modifiable risk factors like lifestyle and genetics is key to prevention and reducing healthcare costs.
Area of Science:
- Cardiology
- Preventive Medicine
- Genetics
Background:
- Atrial fibrillation (AF) is the most common cardiac arrhythmia, associated with significant mortality, stroke risk, and healthcare costs.
- Global prevalence estimates suggest up to 33.5 million individuals are affected by AF.
- Current treatments are effective but costly, highlighting the need for preventive strategies.
Purpose of the Study:
- To review predisposing factors for atrial fibrillation.
- To explore pathogenic mechanisms contributing to AF development.
- To identify modifiable risk factors for AF prevention and healthcare cost reduction.
Main Methods:
- Literature review of existing studies on atrial fibrillation.
- Analysis of pathogenic mechanisms including electrical and structural remodeling.
- Examination of lifestyle factors (sedentary behavior, diet) and genetic predispositions.
Main Results:
- AF development is linked to complex mechanisms like atrial tissue remodeling.
- Sedentary lifestyles and specific dietary habits are identified as contributing factors.
- Genetic predisposition plays a role in the susceptibility to AF.
Conclusions:
- Identifying and modifying risk factors for AF is crucial for public health and economic reasons.
- A comprehensive understanding of AF pathogenesis, including lifestyle and genetic influences, can guide preventive interventions.
- Targeting modifiable risk factors offers a promising approach to mitigate the burden of atrial fibrillation.
Abstract:
Atrial fibrillation (AF) is the most frequent arrhythmia managed in clinical practice, and it is linked to an increased risk of death, stroke, and peripheral embolism. The Global Burden of Disease shows that the estimated prevalence of AF is up to 33.5 million patients. So far, successful therapeutic techniques have been implemented, with a high health-care cost burden. As a result, identifying modifiable risk factors for AF and suitable preventive measures may play a significant role in enhancing community health and lowering health-care system expenditures. Several mechanisms, including electrical and structural remodeling of atrial tissue, have been proposed to contribute to the development of AF. This review article discusses the predisposing factors in AF including the different pathogenic mechanisms, sedentary lifestyle, and dietary habits, as well as the potential genetic burden.
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