Magnetic Electroanatomic Mapping of an Atrial Tachycardia Requiring Ablation Within the Coronary Sinus

Antonio J. Navarrete, Rishi Arora, Joyce E. Hubbard, John M. Miller

Research output: Contribution to journalArticle

13 Scopus citations


We describe a focal atrial tachycardia (AT) originating from the region of the inferoposterior mitral annulus in which ablation at the site of earliest endocardial activation during AT was unsuccessful. Three-dimensional electroanatomic mapping identified the earliest atrial activation within the coronary sinus. Radiofrequency energy delivered at this site within the CS terminated this tachycardia without any complications, suggesting an origin within the CS. To our knowledge, this is the first time a three-dimensional, high-density activation map of such a tachycardia has been reported.

Original languageEnglish (US)
Pages (from-to)1361-1364
Number of pages4
JournalJournal of Cardiovascular Electrophysiology
Issue number12
StatePublished - Dec 1 2003



  • Atrial tachycardia
  • Catheter ablation
  • Coronary sinus
  • Electroanatomic mapping

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology

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