Abstract
Inherited cardiomyopathies have highly variable expression in terms of symptoms, functional limitations, and disease severity. Associated risk of sudden cardiac death is also variable. International guidelines currently recommend restriction of all athletes with cardiomyopathy from participation in competitive sports. While the guidelines are necessarily conservative because predictive risk factors for exercise-triggered SCD have not been clearly identified, the risk is clearly not uniform across all athletes and all sports. The advent of implantable cardioverter defibrillators, automated external defibrillators, and successful implementation of emergency action plans may safely mitigate risk of sudden cardiac death during physical activity. An individualized approach to risk stratification of athletes that recognizes patient autonomy may allow many individuals with cardiomyopathies to safely train and compete.
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