The heart in progressive muscular dystrophy

1.1. The cardiac muscle is involved in a high percentage of cases in progressive muscular dystrophy.2.2. Clinically, the vast majority of these patients show no heart disease. Some patients, however, have congestive heart failure, while others have arrhythmias and tachycardias.3.3. Electrocardiographically, these patients showed short P-R intervals in five out of seventeen cases and abnormal Q waves in two cases.