Atrial fibrillation history impact on catheter ablation outcome : Findings from the ESC-EHRA atrial fibrillation ablation long-term registry

• BACKGROUND: Atrial fibrillation (AF) promotes atrial remodeling that in turn promote AF perpetuation. The aim of our study was to investigate the impact of AF history length on one-year outcome of AF catheter ablation in a cohort of patients enrolled in the Atrial Fibrillation Ablation Registry.METHODS: We described the real-life clinical epidemiology, therapeutic strategies and the short- and mid-term outcomes of 1948 patients (71.9% with paroxysmal AF) undergoing AF ablation procedures, stratified according to AF history duration (< 2 years or ≥ 2 years).RESULTS: The mean AF history duration was 46,2±57,4 months, 592 patients had an AF history duration < 2 years (mean 10,2±5,9 months), and 1356 patients ≥ 2 years (mean 75,5±63,5 months) (P < 0.001). Patients with AF history duration < 2 years were younger, had a lower incidence of hypertension, coronary artery disease, hypertrophic cardiomyopathy and had a lower CHA2 DS2 -VaSc Score. At one year, the logrank test showed a lower incidence of AF recurrence in patients with AF history duration < 2 years (28.9%) than in patients with AF history duration ≥ 2 years (34.0%) (P = 0.037). AF history duration ≥ 2 years, overall ablation procedure duration, hypertension and chronic kidney disease were all predictors of recurrences after the blanking period.CONCLUSIONS: In this multicenter registry, performing catheter ablation in patients with an AF history ≥ 2 years was associated with higher rates of AF recurrences at one year. Since cumulative time in AF in not necessarily equivalent to AF history, its role remains to be clarified.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Kardiologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)

Nyckelord

Atrial fibrillation

Atrial fibrillation duration

Catheter ablation

Mid-term outcome

recurrence predictors

Cardiology

Kardiologi

Publikations- och innehållstyp

ref (ämneskategori)

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