Two active junctional pacemakers manifested by atrioventricular dissociation and junctional captures.
A case of atrioventricular dissociation with RP-dependent abrupt prolongation of ventricular cycles is presented. The prolongation was less than expected with concealed junctional captures. It is assumed that resetting of an upper junctional pacemaker allowed impulses from a lower one to escape.
D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D001283:Atrioventricular Node; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System; D006801:Humans