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Review
. 2020 Sep-Oct;63(5):671-681.
doi: 10.1016/j.pcad.2020.03.015. Epub 2020 Mar 26.

Special Article - Exercise-induced right ventricular injury or arrhythmogenic cardiomyopathy (ACM): The bright side and the dark side of the moon

Roman Leischik  1 , Birgit Dworrak  2 , Marcus Strauss  3 , Mark Horlitz  2 , Helios Pareja-Galeano  4 , Fernando de la Guía-Galipienso  5 , Giuseppe Lippi  6 , Carl J Lavie  7 , Marco V Perez  8 , Fabian Sanchis-Gomar  9
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Free article
Review

Special Article - Exercise-induced right ventricular injury or arrhythmogenic cardiomyopathy (ACM): The bright side and the dark side of the moon

Roman Leischik et al. Prog Cardiovasc Dis. 2020 Sep-Oct.
Free article

Abstract

There is still debate on the range of normal physiologic changes of the right ventricle or ventricular (RV) function in athletes. Genetic links to arrhythmogenic cardiomyopathy (ACM) are well-established. There is no current consensus on the importance of extensive exercise and exercise-induced injury to the RV. During the intensive exercise of endurance sports, the cardiac structures adapt to athletic load over time. Some athletes develop RV cardiomyopathy possibly caused by genetic predisposition, whilst others develop arrhythmias from the RV. Endurance sports lead to increased volume and pressure load in both ventricles and increased myocardial mass. The extent of volume increase and changes in myocardial structure contribute to impairment of RV function and pose a challenge in cardiovascular sports medicine. Genetic predisposition to ACM may play an important role in the risk of sudden cardiac death of athletes. In this review, we discuss and evaluate existing results and opinions. Intensive training in competitive dynamic/power and endurance sports leads to specific RV adaptation, but physiological adaptation without genetic predisposition does not necessarily lead to severe complications in endurance sports. Discriminating between physiological adaptation and pathological form of ACM or RV impairment provoked by reinforced exercise presents a challenge to clinical sports cardiologists.

Keywords: Arrhythmias; Arrhythmogenic right ventricular cardiomyopathy; Athletes; Exercise; Right ventricle; Sudden cardiac death.

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