Key result
High vagal tone and cardiac electrical and structural remodeling are key mechanisms contributing to supraventricular rhythm disturbances such as atrial fibrillation in athletes.
Why the study?
Athletes are prone to supraventricular rhythm disturbances, but supporting evidence and controversies regarding high vagal tone and cardiac remodeling require evaluation.
This review summarizes current evidence, controversies, and future directions regarding the mechanisms of supraventricular arrhythmias in athletes.
Answers are grounded in this paper and cite their sources.
May inform arrhythmia risk stratification in athletes; leaves open need for prospective trials to guide interventions.
Athletes are prone to supraventricular rhythm disturbances including sinus bradycardia, heart block, and atrial fibrillation. Mechanistically, this is attributed to high vagal tone and cardiac electrical and structural remodeling. Here, we consider the supporting evidence for these three pro-arrhythmic mechanisms in athletic human cohorts and animal models, featuring current controversies, emerging data, and future directions of relevance to the translational research agenda.
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D’Souza et al. (2019) conducted a review in Supraventricular arrhythmias in athletes. High vagal tone and cardiac electrical and structural remodeling are key mechanisms contributing to supraventricular rhythm disturbances such as atrial fibrillation in athletes.
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