Wandering atrial pacemaker associated with repetitive respiratory strain.
Electrocardiographic responses of body-builders and control subjects obtained during the performance of static and dynamic Valsalva maneuvers were studied to determine the causative stimulus for wandering pacemaker activity. The incidence of shifting or wandering pacemaker was nearly double in body-builders, suggesting that this is an occupational or activity-related arrhythmia. The causative mechanism is briefly discussed.
Arrhythmias, Cardiac↗