Mapping and ablation of atypical AVNRT from the morphologic left atrium in a patient with dextrocardia and situs inversus

E. Kevin Heist, Claudio Tondo, Daniel Blendea, Jeremy N. Ruskin, Moussa Mansour

Research output: Contribution to journalArticlepeer-review

Abstract

A 75-year-old woman with dextrocardia, situs inversus, and subpulmonic outflow obstruction presented with recurrent supraventricular tachycardia (SVT). This SVT was easily inducible during electrophysiology study, and pacing maneuvers during SVT were consistent with atypical, slow-slow atrioventricular nodal reentrant tachycardia (AVNRT). The His bundle was identified in the low postero-septal morphologic right atrium, at the typical anatomic site for slow pathway ablation of AVNRT. Mapping of the retrograde earliest atrial electrogram during AVNRT localized this site to the mid-septal morphologic left atrium, and cryoablation at this site terminated the AVNRT and rendered it noninducible.

Original languageEnglish
JournalPACE - Pacing and Clinical Electrophysiology
Volume33
Issue number11
DOIs
Publication statusPublished - Nov 2010

Keywords

  • ablation
  • electrophysiology-clinical
  • SVT

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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