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Sudden death in mild hypertrophic cardiomyopathy with compound DSG2/DSC2/MYH6 mutations: Revisiting phenotype after genetic assessment in a master runner athlete.

J Electrocardiol. 2019 Jan 02;53:95-99

Authors: Castellana S, Mastroianno S, Palumbo P, Palumbo O, Biagini T, Leone MP, De Luca G, Potenza DR, Amico CM, Mazza T, Russo A, Di Stolfo G, Carella M

Abstract
Cardiomyopathies represent a well-known cause of heart failure and sudden death. Although cardiomyopathies are generally categorized in distinct nosographic entities, characterized by single gene-to-disease causal relationships, recently, oligogenic mutations have also been associated to relevant cardiac clinical features. We report the case of a master athlete carrying trigenic mutations in desmoglein-2 (DSG2), desmocollin-2 (DSC2) and heavy chain myosin 6 (MYH6), which determine a mild hypertrophic phenotype associated both to ventricular tachyarrhythmias and atrio-ventricular block. We discuss the differential diagnosis and prognostic approach in patient affected by complex cardiomyopathy phenotype, along with the importance of sport restriction and sudden death prevention.

PMID: 30716529 [PubMed – as supplied by publisher]

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