Abstract
Background
Visually guided laser balloon (VGLB) ablation allows for pulmonary vein isolation (PVI) under direct endoscopic control. Short- and midterm clinical outcomes are in accordance with results of radiofrequency current (RFC) ablation for the treatment of paroxysmal atrial fibrillation (PAF).
Objective
The current study sought to assess the long-term clinical outcomes of VGLB-based PVI for PAF.
Methods
A total of 90 patients [60 ± 10 years; 33 (37%) female, left atrial diameter 42 ± 4 mm] with drug-refractory PAF underwent VGLB ablation. The median duration of PAF until VGLB ablation was 36 (interquartile range 12; 84) months. Follow-up was based on outpatient clinic visits including Holter ECGs and telephone interviews. Repeat ablation due to arrhythmia recurrences was performed using RFC ablation.
Results
After a single VGLB procedure, 5-year freedom from arrhythmia recurrence was 51% [95% confidence interval (CI) 39–62%]. Thirty-three patients underwent repeat RFC ablation procedures, resulting in multiple procedure freedom from arrhythmia recurrence of 78% (95% CI 68–88%). Major periprocedural complications occurred in four patients (4%).
Conclusions
VGLB ablation for the treatment of drug-refractory PAF is safe and results in 5-year single and multiple procedure arrhythmia-free survival of 51 and 78%, respectively.
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KHK and AM received speaker’s honoraria from CardioFocus.
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Reissmann, B., Budelmann, T., Wissner, E. et al. Five-year clinical outcomes of visually guided laser balloon pulmonary vein isolation for the treatment of paroxysmal atrial fibrillation. Clin Res Cardiol 107, 405–412 (2018). https://doi.org/10.1007/s00392-017-1199-6
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DOI: https://doi.org/10.1007/s00392-017-1199-6