Abstract
Baseline Characteristics and Prognosis of LS-AF Patients Background It is unknown if baseline characteristics and prognosis of patients with longstanding persistent (defined as history greater than 1 year) atrial fibrillation (LS-AF) differ among those with either recurrent atrial tachycardia (R-AT) or recurrent AF (R-AF) after first ablation. Methods In 222 consecutive LS-AF patients treated for R-AT or R-AF after first ablation, activation and entrainment mapping was used to identify R-AT mechanism and to guide the following ablation, and the ablation endpoints for all patients included complete pulmonary vein isolation, bidirectional block of lines, and disappearance of complex fractionated atrial electrograms. Results There were 102 patients in the R-AF group. LS-AF patients with R-AT as compared to R-AF had shorter AF duration and recurrence interval, smaller left atrium size and left ventricular end-diastolic diameter, and less mitral and aortic regurgitation before first ablation. During follow-up (17.7 ± 4.0 months) after R-AT/R-AF ablation, 78 LS-AF patients developed recurrent atrial tachyarrhythmia, with lower overall and recurrence as AF in R-AT versus R-AF groups. Conclusions LS-AF patients who develop R-AT versus R-AF after first ablation have more favorable baseline characteristics and prognosis.
Original language | English (US) |
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Pages (from-to) | 259-265 |
Number of pages | 7 |
Journal | Journal of cardiovascular electrophysiology |
Volume | 25 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2014 |
Externally published | Yes |
Keywords
- atrial fibrillation
- atrial flutter
- atrial tachycardia
- catheter ablation
- left atrium
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Physiology (medical)