Persistent Junctional Reciprocating Tachycardia (PJRT)

Idealized Example

Background: PJRT is an uncommon arrhythmias as an outpatient and even less common in the post operative setting. The surface electrogram is characterized by P waves originating from the low RA and can be difficult to differentiate from AET or a slow IART.

AEG: PJRT has 1:1 A:V conduction with a VA which is longer than the AV time. It is often somewhat slower and more incessant than other reentrant arrhythmias.  The P wave is characteristically from a low right atrial origin.  As a reentrant arrhythmia PJRT generally shows sudden onset and termination (unlike AET). 

Adenosine: PJRT can be terminated with adenosine.

Atrial Overdrive Pacing: PJRT can be terminated with atrial overdrive pacing.