A-V DISSOCIATION

DUE TO DEFAULT

“A-V DISSOCIATION REPRESENTS THE CIRCUMSTANCE IN WHICH THE ATRIA ARE ACITIVATED BY ONE PACEMAKER AND THE VENTRICLES BY ANOTHER—THE TWO PACEMAKERS COMPETING FOR CONTROL OF VENTRICULA R ACTIVATION. IN THE RESULTING DUEL, THE ONE WITH THE FASTEST RATE WILL DOMINATE THE OVERALL RHYTHM.”

A-V DISSOCIATION

IF THE SINUS NODE IS LAZY, IT PERMITS AN AUXILLARY PACEMAKERTO SURFACE – “A-V DISSOCIATION BY DEFAULT”