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January 1, 1999Japanese Circulation Journal-english EditionOpen Access

Electrophysiological Mechanisms of Conversion of Typical to Atypical Atrioventricular Nodal Reentrant Tachycardia Occurring After Radiofrequency Catheter Ablation of the Slow Pathway

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Why the study?

What is the electrophysiological mechanism of conversion from typical to atypical AVNRT after slow pathway ablation?

Population

1 adult patient with typical atrioventricular nodal reentrant tachycardia (AVNRT)

Design

Case_report

Authors

AFAkira FujikiMUMasahiro UsuiKMKoichi Mizumaki

Discussion

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Overview

May indicate need for superior ablation site in post-SP atypical AVNRT; hypothesis-generating from single case and requires prospective validation.

Structured PICO

What is the electrophysiological mechanism of conversion from typical to atypical AVNRT after slow pathway ablation?

P
Population
1 adult patient with typical atrioventricular nodal reentrant tachycardia (AVNRT)
I
Intervention
Radiofrequency catheter ablation of the slow pathway (initial 3 applications in the posteroseptal region, followed by 1 additional application 5 mm upward)
O
Outcome
Electrophysiological mechanism of conversion from typical to atypical AVNRT

The loss of concealed conduction over the antegrade slow pathway may initiate atypical AVNRT after slow pathway ablation, which can be successfully treated with additional ablation slightly superior to the initial site.

Cite This Study

Fujiki et al. (1999) studied this question.

synapsesocial.com/papers/6a768d04f6749a0058ec167ehttps://doi.org/10.1253/jcj.63.999
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Physiology of “Atypical” Atrioventricular Junctional Reentrant Tachycardia Occurring Following Radiofrequency Catheter Modification of the Atrioventricular Node1992 · 47 citations
  2. 2Complex Electrophysiological Characteristics in Atrioventricular Nodal Reentrant Tachycardia With Continuous Atrioventricular Node Function Curves1997 · 59 citations
  3. 3An unusual variety of atrioventricular nodal re-entry due to retrograde dual atrioventricular nodal pathways.1977 · 125 citations
  4. 4Analysis of Electrophysiological Activity in Koch's Triangle Relevant to Ahlation of the Slow AV Nodal Pathway1997 · 18 citations
  5. 5Longitudinal Dissociation Within the Posterior AV Nodal Input of the Rabbit1999 · 29 citations