Recognition of short RP atrial tachycardia due to intra-atrial conduction delay: utility of a septal AH/HA Ratio & lt;1

A 59-year-old man underwent ablation for cavotricuspid (CTI)-dependent right atrial flutter. Post ablation programmed stimulation reproducibly initiated supraventricular tachycardia with a cycle length 300 –310 ms. The rhythm strip showed short RP tachycardia with a prolonged P wave duration (175 ms), which was much longer compared with during sinus rhythm (110 ms) (top panel, left).

Source: Europace - May 30, 2017 Category: Cardiology Source Type: research