AV dissociation is a hallmark of

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AV dissociation, or complete heart block, is a hallmark of third-degree AV block. In this condition, there is no communication between the atria and ventricles, and the ventricles are paced by a lower pacemaker site, resulting in a regular ventricular rhythm that is independent of the atrial rhythm. First-degree AV block, Mobitz I second-degree AV block, and Mobitz II second-degree AV block all involve varying degrees of delay or failure of AV conduction but not complete dissociation.

AV Dissociation Is a Hallmark of