The electrophysiologic characteristics in patients with only ventricular-pacing inducible slow-fast form atrioventricular nodal reentrant tachycardia

Pi Chang Lee, Ching Tai Tai, Betau Hwang, Ming Hsiung Hsieh, Chin Feng Tsai, Chern En Chiang, Wen Chung Yu, Hsuan Ming Taso, Kun Tai Lee, Yoga Yuniadi, Wanwarang Wongchaoen, Shih Ann Chen

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Abstract

Background: Atrioventricular nodal reentrant tachycardia (AVNRT) can be usually induced by atrial pacing or extrastimulation. However, it is less commonly induced only by ventricular pacing or extrastimulation. Objective: The purpose of this retrospective study was to investigate the electrophysiologic characteristics in patients with slow-fast form AVNRT that could be induced only by ventricular pacing or extrastimulation. Methods: The total population was 1497 patients associated with AVNRT. There were 1373 (91.7%) patients who had slow-fast form AVNRT included in our study. Group 1 (n = 45) could be induced only by ventricular pacing or extrastimulation, and Group 2 (n = 1328) could be induced by only atrial stimulation or both atrial and ventricular stimulation. The electrophysiologic characteristics of the group 1 and group 2 patients were compared. Results: Group 1 patients had a significantly lower incidence of both antegrade and retrograde dual AV nodal pathways. The pacing cycle length (CL) of the antegrade 1:1 fast pathway (FP) and antegrade ERP of the FP were both significantly shorter in Group 1 patients. Mean antegrade FRP of the fast and slow pathways were significantly shorter in Group 1 patients. The differences of pacing CL of 1:1 antegrade conduction, antegrade ERP and FRP were much longer in Group 2 patients. Conclusion: This study demonstrated the patients with slow-fast form AVNRT that could be induced only by ventricular stimulation had a lower incidence of dual AV nodal pathways and the different electrophysiologic characteristics (shorter pacing CL of the antegrade 1:1 FP, antegrade ERP of the FP and the differences of pacing CL of 1:1 antegrade conduction, antegrade ERP and FRP) from the other patients. The specific electrophysiologic characteristics in such patients could be the reason that could be induced only by ventricular stimulation.

Original languageEnglish
Pages (from-to)153-157
Number of pages5
JournalJournal of Interventional Cardiac Electrophysiology
Volume14
Issue number3
DOIs
Publication statusPublished - Dec 2005
Externally publishedYes

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Keywords

  • Atrioventricular nodal reentrant tachycardia
  • Electrophysiology
  • Radiofrequency catheter ablation
  • Ventricular stimulation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Lee, P. C., Tai, C. T., Hwang, B., Hsieh, M. H., Tsai, C. F., Chiang, C. E., Yu, W. C., Taso, H. M., Lee, K. T., Yuniadi, Y., Wongchaoen, W., & Chen, S. A. (2005). The electrophysiologic characteristics in patients with only ventricular-pacing inducible slow-fast form atrioventricular nodal reentrant tachycardia. Journal of Interventional Cardiac Electrophysiology, 14(3), 153-157. https://doi.org/10.1007/s10840-006-5924-8