The convergent procedure versus catheter ablation alone in longstanding persistent atrial fibrillation: A single centre, propensity-matched cohort study.
Int J Cardiol
; 303: 49-53, 2020 03 15.
Article
em En
| MEDLINE
| ID: mdl-32063280
ABSTRACT
BACKGROUND:
Maintenance of sinus rhythm is challenging in patients with longstanding persistent atrial fibrillation (PeAF). Minimally invasive surgical AF ablation may improve outcomes when combined with catheter ablation (the 'convergent' procedure). This study evaluates the safety and efficacy of the convergent procedure versus catheter ablation alone in longstanding PeAF.METHODS:
43 consecutive patients with longstanding PeAF underwent subxiphoid endoscopic ablation of the posterior left atrium followed by catheter ablation from 2013 to 2018. The primary outcome was AF-free survival at 12â¯months; secondary outcomes included change in EHRA class, echocardiographic data, procedural complications, freedom from anti-arrhythmic drugs (AADs), and long term arrhythmia-free survival. Outcomes were compared with a matched group of 43 patients who underwent catheter ablation alone. Both groups underwent multiple catheter ablations as required. Baseline characteristics were similar between groups.RESULTS:
After 12â¯months, the convergent procedure was associated with increased AF-free survival on AADs (60.5% versus 25.6%, pâ¯=â¯.002) and off AADs (37.2% versus 13.9%, pâ¯=â¯.025), versus catheter ablation. Allowing for multiple procedures, after 30.5⯱â¯13.3â¯months' follow-up the convergent procedure was associated with increased arrhythmia-free survival on AADs (58.1% versus 30.2%, pâ¯=â¯.016) and off AADs (32.5% versus 11.6%, pâ¯=â¯.036) versus catheter ablation. There were more complications in the convergent procedure group (11.6% versus 2.3%, pâ¯=â¯.2). Multivariate analysis identified only the convergent procedure (OR 3.06 (1.23-7.6), pâ¯=â¯.017) as predictive of arrhythmia-free survival long term.CONCLUSIONS:
In longstanding PeAF, the convergent procedure is associated with improved arrhythmia-free survival versus catheter ablation alone. Complication rates are significant but have been shown to depreciate with experience.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fibrilação Atrial
/
Ablação por Cateter
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Procedimentos Cirúrgicos Minimamente Invasivos
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Pontuação de Propensão
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Átrios do Coração
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Sistema de Condução Cardíaco
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article