[Duchenne muscular dystrophy: electrocardiographic analysis of 131 patients].

Background: Cardiac involvement is known to occur in patients with Duchenne muscular dystrophy (DMD). The electrocardiogram (ECG) shows some typical changes in DMD, which makes it a useful test for the diagnosis of cardiac lesion in this disease.

Objective: To evaluate the electrocardiographic changes in patients with DMD and to correlate these changes with the age of the population studied.