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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
28:13

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

Optimal timing of electrical cardioversion in patients with persistent atrial fibrillation

Franjo Naji1, Damijan Vokac, Vojko Kanic

  • 1Department of Cardiology and Angiology, University Medical Centre, Maribor, Slovenia. franjo.naji@yahoo.com

Medical Science Monitor : International Medical Journal of Experimental and Clinical Research
|October 2, 2010
PubMed

Insights

The duration of atrial fibrillation before electrical cardioversion is a key predictor of recurrence. Longer atrial fibrillation duration increases the risk of recurrence after successful cardioversion, while amiodarone may offer protection.

Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Atrial fibrillation recurrence post-cardioversion is a significant clinical challenge.
  • Limited data exist on the impact of atrial fibrillation duration prior to cardioversion on long-term outcomes.

Purpose of the Study:

  • To investigate the effect of atrial fibrillation duration on sinus rhythm maintenance after electrical cardioversion.
  • To identify predictors of atrial fibrillation recurrence in patients undergoing cardioversion.

Main Methods:

  • A cohort of 301 patients undergoing successful electrical cardioversion for persistent atrial fibrillation was analyzed.
  • Patients were followed for 2 years, with recurrence defined by electrocardiogram evidence of atrial fibrillation.

Main Results:

  • Atrial fibrillation recurred in 61.5% of patients within a mean follow-up of 377 days.
  • Multivariate analysis identified atrial fibrillation duration as the sole predictor of recurrence (OR 1.06).
  • A Cox model indicated that atrial fibrillation duration ≥10 months (OR 1.87) and amiodarone treatment (OR 0.55) predicted recurrence.

Conclusions:

  • The duration of atrial fibrillation before electrical cardioversion significantly predicts recurrence rates after rhythm restoration.
  • Further research is necessary to fully understand the implications of atrial fibrillation duration on maintaining sinus rhythm post-cardioversion.
Abstract

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