title: An unusual mechanism of arrhythmia production.
abstract: An unusual electrocardiogram (ECG) is presented which demonstrates two mechanisms of communication between the atria and the ventricles. The first appears to reflect ordinary atrio-ventricular impulse propagation. The second appears likely to represent stimulation of the ventricles by mechanical atrial systole.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D001283:Atrioventricular Node / Q000503:physiopathology; D002036:Bundle of His / Q000503:physiopathology; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications