Upper atrio-ventricular nodal beats precipitated by ventricular extrasystoles with retrograde conduction.
D001145:Arrhythmias, Cardiac; D001283:Atrioventricular Node; D004562:Electrocardiography; D006339:Heart Rate; D006801:Humans; D018879:Ventricular Premature Complexes
ARRHYTHMIA; ELECTROCARDIOGRAPHY