Left-sided atrial flutter originating in the coronary sinus after radiofrequency ablation of atrial fibrillation

Alejandro Jimenez, Stephen R. Shorofsky, Timm M. Dickfeld, Rishi Anand, Anastasios P. Saliaris, Magdi Saba

Research output: Contribution to journalArticlepeer-review

Abstract

We describe a case of atypical atrial flutter presenting 1 year after radiofrequency ablation for atrial fibrillation (AF). Electrophysiologic study showed a reentry circuit involving the inferolateral aspect of the mitral annulus and the coronary sinus (CS); however, a mitral isthmus line did not terminate the arrhythmia. Participation of the proximal CS musculature in the circuit suggested a possible target for ablation. Radiofrequency energy applications from within the CS terminated the tachycardia. Mapping and ablation within the CS should be considered in patients with post-AF ablation arrhythmias, particularly when the mitral annulus appears to be involved in the tachycardia circuit.

Original languageEnglish (US)
JournalPACE - Pacing and Clinical Electrophysiology
Volume33
Issue number10
DOIs
StatePublished - Oct 2010
Externally publishedYes

Keywords

  • atrial fibrillation
  • atrial flutter
  • catheter ablation
  • coronary sinus
  • mitral isthmus

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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