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- W2017994406 abstract "BackgroundAlthough various empiric adjunctive ablation techniques are widely performed with pulmonary vein antrum isolation (PVAI) to enhance the procedural efficacy of catheter ablation in non-paroxysmal atrial fibrillation (NPAF) patients, they are not required in all NPAF patients.Methods and resultsEighty consecutive NPAF patients refractory to antiarrhythmic drugs underwent a PVAI-based ablation. Structural heart disease was present in 40% of patients and systolic dysfunction in 21%. After 31 ± 16 months of follow-up, 41% of the patients were free of atrial tachyarrhythmia recurrences after a single procedure. Finally, during a mean follow-up of 25 ± 15 months, 63 of 80 (79%) patients remained in sinus rhythm (SR) after the final procedure (two procedures in 48%, and three in 3%). A Cox regression multivariate analysis revealed that left atrial volume (LAV) was the only independent predictor of atrial tachyarrhythmia recurrences not only after single procedures (p = 0.027), but also after the final procedures (p = 0.001). Ten patients (13%) needed ablation for concomitant atrial tachycardias originating from the left atrium and right atrium other than common atrial flutter. Repeat ablation procedures increased the best cut-off value for predicting recurrences analyzed by receiver operating characteristic curves, from 86 mL (sensitivity 70%, specificity 64%) to 92 mL (sensitivity 71%, specificity 78%).ConclusionsPVAI-based ablation strategies could achieve SR maintenance in almost 80% of NPAF patients after multiple procedures during long-term follow-up. The preprocedural LAV was an important predictor of the procedural outcome." @default.
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- W2017994406 date "2014-07-01" @default.
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- W2017994406 title "Long-term outcome and preprocedural predictors of atrial tachyarrhythmia recurrence following pulmonary vein antrum isolation-based catheter ablation in patients with non-paroxysmal atrial fibrillation" @default.
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- W2017994406 doi "https://doi.org/10.1016/j.jjcc.2013.11.010" @default.
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