Beyond the RV: Recurrent Myocarditis Unravelled as an Arrhythmogenic Cardiomyopathy

Speaker: Dr. Ryan Sless, PGY 5, Univeristy of Toronto

Objectives: 1. Highlight a case of recurrent myocarditis and when to consider other etiologies. 2. Review guidelines for imaging of the RV and its importance in arrhythmogenic cardiomyopathy. 3. Discuss exercise restrictions in arrythmogenic cardiomyopathies.

Key points: Recurrent myocarditis can sometimes be misdiagnosed when it is actually an arrhythmogenic cardiomyopathy, highlighting the importance of thorough diagnostic evaluations. Desmoplakin cardiomyopathy is a unique subtype of arrhythmogenic cardiomyopathy that often presents with episodic myocardial inflammation and requires specific diagnostic criteria and genetic testing for accurate identification. Echocardiographic assessment of the right ventricle, including careful measurement of the RVOT, is critical in diagnosing arrhythmogenic right ventricular cardiomyopathy and monitoring disease progression.