Key result
Cryoballoon ablation has standardized the approach to pulmonary vein isolation for atrial fibrillation, though optimal duration and dosage of cryoapplication remain to be clarified.
Why the study?
Although cryoballoon ablation has standardized pulmonary vein isolation for drug-resistant AF, critical points such as duration and dosage of cryoapplication still need scientific clarification.
Cryoballoon ablation is a recognized, fast, and reproducible method for pulmonary vein isolation in drug-resistant atrial fibrillation, though optimal duration and dosage require further standardization.
Supports cryoballoon PVI standardization in AF; leaves open optimal cryoapplication duration and dosage for trials.
Introduction: Pulmonary vein isolation (PVI), by catheter ablation, represents the current treatment for drug-resistant atrial fibrillation (AF). Nowadays cryoballoon (CB) is a recognized ablation method in patients with atrial fibrillation, mainly due to its ease of use, leading to reproducible and fast procedures. This novel single shot technology literally revolutionized the approach to AF ablation.Areas covered: The historical development of the cryoballoon, ablation techniques and new approaches beyond the ordinary PVI and complications are summarized here.Expert opinion: Although cryoballoon ablation has greatly standardized the approach to PVI a few critical points still need to be clarified scientifically in order to further uniform this procedure in cath labs worldwide. Duration and dosage of the cryoapplication is undoubtedly a topic of great interest.
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Osório et al. (2019) conducted a review in Atrial fibrillation. Cryoballoon ablation was evaluated. Cryoballoon ablation has standardized the approach to pulmonary vein isolation for atrial fibrillation, though optimal duration and dosage of cryoapplication remain to be clarified.
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