Why the study?
Few studies have investigated the difference in left atrial scar formation between radiofrequency and cryoballoon ablation using cardiac magnetic resonance imaging.
Does cryoballoon ablation compared to radiofrequency ablation alter postablation cardiac MRI scar formation and atrial arrhythmia recurrence in patients with symptomatic atrial fibrillation?
Does cryoballoon ablation compared to radiofrequency ablation alter postablation cardiac MRI scar formation and atrial arrhythmia recurrence in patients with symptomatic atrial fibrillation?
Cryoballoon ablation produces more targeted pulmonary vein antral scarring and less non-target scarring compared to radiofrequency ablation, though both modalities yield similar rates of atrial arrhythmia recurrence.
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Similar recurrence despite scar differences; leaves open whether targeted lesion sets improve long-term outcomes.
Nelson et al. (2023) studied this question.
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