1 / 13

A-V DISSOCIATION

A-V dissociation occurs when the atria and ventricles are activated by different pacemakers, creating a competition for control over ventricular activation. This phenomenon is referred to as "A-V dissociation by default," often emerging when the primary pacemaker, the sinus node, is inactive. In this scenario, an auxiliary pacemaker takes over, leading to a unique rhythm where the pacemaker with the highest intrinsic rate governs the heartbeat. Understanding this mechanism is crucial for diagnosing and managing certain cardiac arrhythmias.

hugh
Télécharger la présentation

A-V DISSOCIATION

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A-V DISSOCIATION DUE TO DEFAULT

  2. A-V DISSOCIATION “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.”

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

More Related