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  • Title: An overview of heart rhythm disorders and management in myotonic dystrophy type 1.
    Author: Gossios TD, Providencia R, Creta A, Segal OR, Nikolenko N, Turner C, Lopes LR, Wahbi K, Savvatis K.
    Journal: Heart Rhythm; 2022 Mar; 19(3):497-504. PubMed ID: 34843968.
    Abstract:
    Myotonic dystrophy type 1 (DM1) is the most common adult form of muscular dystrophy, presenting with a constellation of systemic findings secondary to a CTG triplet expansion of the noncoding region of the DMPK gene. Cardiac involvement is frequent, with conduction disease and supraventricular and ventricular arrhythmias being the most prevalent cardiac manifestations, often developing from a young age. The development of cardiac arrhythmias has been linked to increased morbidity and mortality, with sudden cardiac death well described. Strategies to mitigate risk of arrhythmic death have been developed. In this review, we outline the current knowledge on the pathophysiology of rhythm abnormalities in patients with myotonic dystrophy and summarize available knowledge on arrhythmic risk stratification. We also review management strategies from an electrophysiological perspective, attempting to underline the substantial unmet need to address residual arrhythmic risks for this population.
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