Unusual resetting of superior-type fast-slow atrioventricular nodal reentrant tachycardia with cycle length alternans by early spontaneous premature ventricular contraction

Takayuki Sekihara; Tomoaki Nakano; Akira Yoshida; Takafumi Oka; Yasushi Sakata

doi:10.1002/joa3.13163

Unusual resetting of superior-type fast-slow atrioventricular nodal reentrant tachycardia with cycle length alternans by early spontaneous premature ventricular contraction

J Arrhythm. 2024 Oct 21;40(6):1505-1509. doi: 10.1002/joa3.13163. eCollection 2024 Dec.

Authors

Takayuki Sekihara¹, Tomoaki Nakano¹, Akira Yoshida¹, Takafumi Oka¹, Yasushi Sakata¹

Affiliation

¹ Faculty of Medical Sciences, Department of Cardiology University of Osaka Osaka Japan.

Abstract

The pacing maneuvers for supraventricular tachycardia with cycle length alternans are sometimes difficult, especially when diagnostic ventricular pacing does not conduct to the atrium. Even in such a situation, critical diagnostic findings can be obtained by spontaneous premature ventricular contraction.

Keywords: atrioventricular nodal reentrant tachycardia; cycle length alternans; nodo‐fascicular pathway; superior slow pathway; superior‐type fast–slow atrioventricular nodal reentrant tachycardia.