[Arrhythmias and heart rate variability in Duchenne and Becker muscular dystrophy].

The myocardial damage is common in the Duchenne and Becker muscular dystrophy. The rhythm and conduction disorders, associated with these diseases and treatment are analyzed in this publication. Heart rate variability is a sensitive, noninvasive measurement of autonomic input to the heart and can provide valuable information about autonomic function. We investigated the changes in sympatovagal control of heart rate in patients with Duchenne and Backer disease in comparison with the same age healthy children.