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, Jong Il Choi, Seong-Mi Park, Sang Weon Park, Young Hoon Kim, Wan Joo Shim

Research output: Contribution to journalArticlepeer-review

19 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

Keywords

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

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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