4.2 Article

Catheter Ablation of Asymptomatic Longstanding Persistent Atrial Fibrillation: Impact on Quality of Life, Exercise Performance, Arrhythmia Perception, and Arrhythmia-Free Survival

Journal

JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY
Volume 25, Issue 10, Pages 1057-1064

Publisher

WILEY
DOI: 10.1111/jce.12467

Keywords

arrhythmia perception; asymptomatic longstanding persistent AF; exercise performance; quality of life

Funding

  1. Boston Scientific
  2. Biosense Webster
  3. Janssen
  4. St. Jude Medical
  5. Medtronic
  6. Biotronik

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Ablation Outcome in Silent Longstanding Persistent AF BackgroundImpact of catheter ablation on exercise performance, quality of life (QoL) and symptom perception in asymptomatic longstanding persistent AF (LSP-AF) patients has not been reported yet. Methods and ResultsSixty-one consecutive patients (mean age 62 13 years, 71% males) with asymptomatic LSP-AF undergoing first catheter ablation were enrolled. Extended pulmonary vein antrum isolation plus ablation of complex fractionated atrial electrograms and nonpulmonary vein triggers was performed in all. QoL survey was taken at baseline and 12-months postablation, using Short Form-36 (SF-36). Information on arrhythmia perception was obtained using a standard questionnaire and corroborating symptoms with documented evidence of arrhythmia. Exercise tests were performed on 38 patients at baseline and 5 months after procedure. Recurrence was assessed using event recorder, cardiology evaluation, electrocardiogram, and 7-day holter monitoring. After 20 +/- 5 months follow-up, 36 (57%) patients remained recurrence-free off-AAD. Of the 25 patients experiencing recurrence, 21 (84%) were symptomatic. Compared to baseline, follow-up SF-36 scores improved significantly in many measures. For patients with successful ablation, physical component summary (PCS) and mental component summary (MCS) demonstrated substantial improvement (MCS: 64.2 +/- 22.3 to 70.1 +/- 18.6 [P = 0.041]; PCS: 62.6 +/- 18.4 to 70.0 +/- 14.4 [P = 0.032]). Postablation exercise study in recurrence-free patients showed significant reduction in resting and peak heart rate (75 +/- 11 vs. 90 +/- 17 and 132 +/- 20 vs. 154.5 +/- 36, respectively, P < 0.001), increase in peak oxygen pulse (13.4 +/- 3 vs. 18.9 +/- 16 mL/beat, 5.5 +/- 15, P = 0.001), peak VO2/kg (19.7 +/- 5 to 23.4 +/- 13 mL/kg/min [ 3.7 +/- 10, P = 0.043]), and corresponding MET (5.6 +/- 1 to 6.7 +/- 4 [1.1 +/- 3, P = 0.03]). No improvement was observed in patients with failed procedures. ConclusionSuccessful ablation improves exercise performance and QoL in asymptomatic LSP-AF patients.

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