The difference of predictors for recurrence after catheter ablation of non-paroxysmal atrial fibrillation according to follow-up period

Mi Na Kim, Jae Joong Lee, Su A. Kim, Yong Hyun Kim, Jongil Choi, Seong-Mi Park, Sang Weon Park, Young Hoon Kim, Wan Joo Shim

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The aim of this study was to assess the clinical and echocardiographic predictors for the recurrence of persistent atrial fibrillation (AF) after ablation during a long-term period. A total of 130 patients with persistent AF who had undergone radiofrequency catheter ablation (RFCA) were enrolled. We analyzed the relation between clinical parameters, echocardiographic parameters, and AF recurrences at 6 months, 1 year, and 2 years after ablation. During the 2-year follow-up, AF recurred in 61 patients (46.6%). In the 6 month follow-up, AF recurrence was associated only with total ablation time only. However, during the 1-year and 2-year follow-up periods, the presence of hypertension, impaired left atrial (LA) emptying fraction (eF) (≤ 20%), decreased LA appendage (LAA) emptying velocity (≤ 20 cm/sec), and LAAeF (≤ 20%) were correlated with AF recurrence (odds ratio [OR] = 1.87, 2.45, 1.93, and 2.15 respectively, P = 0.016, 0.004, 0.029, and 0.004 respectively). Among these factors, impaired LAeF was the only independent predictor of AF recurrence in multivariate analysis (OR = 2.81, P = 0.012). In patients with persistent AF who had undergone RFCA, the best predictor of AF recurrence after ablation varied according to the follow-up period. Diminished LA function was the only predictor of recurrence in the 2-year follow-up. Pre-procedural assessment of LA function might be helpful in selecting those patients who would benefit from RFCA.

Original languageEnglish
Pages (from-to)312-318
Number of pages7
JournalInternational Heart Journal
Volume55
Issue number4
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • Atrial fibrillation recurrence
  • Echocardiographic predictors
  • Left atrial function
  • Radiofrequency catheter ablation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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