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Atrial fibrillation and its determinants after radiofrequency ablation of chronic common atrial flutter

Stéphane Cade1, Shahine Sedighian, Agustin Bortone

  • 1Hôpital Arnaud de Villeneuve, Centre Hospitalier Universitaire, Montpellier, France.

Indian Pacing and Electrophysiology Journal
|September 1, 2006
PubMed

Insights

Atrial fibrillation (AFib) incidence increases post-atrial flutter ablation. Prior AFib history significantly predicts occurrence, necessitating closer monitoring and potentially extended anticoagulation for high-risk patients.

Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Atrial fibrillation (AFib) is a significant clinical concern.
  • AFib occurrence post-atrial flutter ablation impacts therapeutic strategies.
  • Long-term AFib incidence after ablation remains debated.

Purpose of the Study:

  • To analyze determinants of AFib after radiofrequency catheter ablation for chronic common atrial flutter.
  • To investigate the time course of AFib development post-ablation.

Main Methods:

  • Retrospective analysis of 89 patients undergoing radiofrequency catheter ablation for chronic common atrial flutter.
  • Mean follow-up of 38 months.
  • Assessment of AFib occurrence, time to onset, and association with prior AFib history and structural heart disease.

Main Results:

  • AFib occurrence progressively increased to 32.9% by end of follow-up.
  • Median time to AFib occurrence was 8 months.
  • Prior AFib history (P=0.01) was a significant predictor, unlike underlying heart disease (P=n.s.). AFib did not occur in patients without prior AFib history.

Conclusions:

  • AFib incidence rises progressively after chronic common atrial flutter ablation.
  • Patients with prior AFib history represent a high-risk group.
  • Mandatory closer monitoring and potential prolonged anticoagulation are recommended for these patients.
Abstract

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