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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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1:1 atrial-flutter. Prevalence and clinical characteristics

Béatrice Brembilla-Perrot1, Franck Laporte, Jean Marc Sellal

  • 1Department of Cardiology, Nancy University Hospital, Rue du Morvan 54511 Vandoeuvre-les-Nancy, France.

International Journal of Cardiology
|April 30, 2013
PubMed

Insights

The prevalence of 1:1 atrial flutter (AFL) is 8% in patients undergoing ablation. These patients are younger, have less heart disease, and more atrial fibrillation history, but share similar prognoses.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Epidemiology

Background:

  • Epidemiology of 1:1 atrial flutter (AFL) is not well-understood.
  • Identifying predisposing conditions for 1:1 AFL is crucial for patient management.

Purpose of the Study:

  • To determine the prevalence of 1:1 AFL in patients referred for ablation.
  • To identify factors predisposing to 1:1 AFL.

Main Methods:

  • A consecutive cohort of 1037 patients undergoing AFL ablation was analyzed.
  • Patients were followed for an average of 3 years post-ablation.

Main Results:

  • The prevalence of 1:1 AFL was 8%, with these patients being younger and having less heart disease.
  • Absence of heart disease, history of atrial fibrillation, and use of Class I antiarrhythmics were associated with 1:1 AFL.
  • Prognosis, including ablation failure, complications, and subsequent atrial fibrillation, was similar between groups.

Conclusions:

  • 1:1 AFL occurs in 8% of patients undergoing ablation.
  • Younger age, less heart disease, prior atrial fibrillation, and Class I antiarrhythmic use are linked to 1:1 AFL.
  • The long-term prognosis for patients with 1:1 AFL is comparable to those without.
Abstract

Keywords:
1:1 atrial flutterAblationAnti-arrhythmic drugsAtrial flutterProarrhythmic effect

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