January 9, 2019Open Access

Atypical Fast-Slow Atrioventricular Nodal Reentrant Tachycardia Utilizing a Slow Pathway Extending to the Inferolateral Right Atrium

YKYoshiaki KanekoGunma University TNTadashi NakajimaGunma University ANAkihiko NogamiElectrophysiology

Key Result

Atypical fast-slow atrioventricular nodal reentrant tachycardia can utilize a slow pathway extending to the inferolateral right atrial free wall along the tricuspid annulus.

Structured PICO

Population

7 patients (mean age 48±16 years, 5 men) without structural heart disease who had atypical fast-slow atrioventricular nodal reentrant tachycardia (F/S-AVNRT) presenting with long RP intervals and the earliest site of atrial activation during the tachycardia in the inferolateral free wall of the right atrium adjacent to the tricuspid annulus.

Intervention

Radiofrequency catheter ablation targeting the inferolateral slow pathway (inf-SP) or the site of earliest atrial activation.

Outcome

Successful ablation (elimination of tachycardia and non-inducibility by programmed stimulation before and during isoproterenol infusion).

Atypical fast-slow AVNRT can utilize a slow pathway extending to the inferolateral right atrium, which can be successfully mapped and eliminated with radiofrequency ablation.

Main Result

Absolute Event Rate: 0% vs 0%

Abstract

Background: The existence of atypical fast-slow (F/S) atrioventricular (AV) nodal reentrant tachycardias (NRT) using slow pathway (SP) variants connected to the right atrial (RA) inferolateral (inf) free wall (FW) along the tricuspid annulus (TA), has been neither confirmed nor precisely characterized.

AI से पूछें

Bookmark

View Full Paper