Observational (n=11)
Young patients with myotonic dystrophy type 1 can experience major cardiac rhythm disturbances, particularly exercise-induced tachyarrhythmias, suggesting a potential need for systematic exercise testing with EKG monitoring.
May prompt exercise ECG consideration in young DM1; hypothesis-generating and requires prospective validation before screening adoption.
Cardiac tachyarrhythmias have rarely been studied in young patients with myotonic dystrophy type 1 (DM1). The authors observed major cardiac rhythm disturbances in 11 patients aged 10 to 18 years. Tachyarrhythmic events were more frequent than impulse conduction disorders. Wide variations in CTG expansion were observed among the population. Since physical exercise was a prominent arrhythmogenic factor, systematic exercise tests with EKG monitoring may be indicated in young patients with DM1.
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Bassez et al. (2004) conducted an observational in Myotonic dystrophy type 1 (DM1) (n=11). Myotonic dystrophy type 1 (DM1) was evaluated on Major cardiac rhythm disturbances.
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