Uncommon atrial flutter: Characteristics, mechanisms, and results of ablative therapy

J. Anthony Gomes, Francesco Santoni-Rugiu, Davendra Mehta, Noelle M. Langan, Steven O. Marx, Hemal Nayak

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Thirty-seven patients with atrial flutter were studied with catheter mapping and radiofrequency ablation. Uncommon atrial flutter occurred in 20 out of 37 (54%) patients. Atrial endocardial mapping showed two types of uncommon atrial flutter. In 15 patients (group I) it was characterized by a single clockwise circuit whereas in 5 patients (Group II) it was characterized by the presence of more than one circuit and/or localized atrial fibrillation. RFA ablation was acutely successful in 14 out of 15 patients (93%) in Group I and in 2 out of 5 (40%) patients in Group II. On long-term follow-up a significantly larger number of patients in Group I versus Group II (86% vs 20%) remained free of atrial flutter recurrence. We conclude that uncommon atrial flutter is a heterogeneous entity involving one or more reentrant circuits. Uncommon atrial flutter with multiple circuits may not be suitable for RFA.

Original languageEnglish (US)
Pages (from-to)2029-2042
Number of pages14
JournalPACE - Pacing and Clinical Electrophysiology
Issue number11 I
StatePublished - Nov 1998
Externally publishedYes


  • Atrial fibrillation
  • Coronary sinus
  • Radiofrequency ablation
  • Uncommon atrial flutter

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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