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Empiric Nonpulmonary Vein Trigger Ablation for Management of Atrial Fibrillation: Is Cryoballoon Isolation of the Superior Vena Cava the Answer?
Circ Arrhythm Electrophysiol
January 2025
Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Nonocclusive Ablation Technique Using a Novel Cryoballoon for Failed Left Superior Pulmonary Vein Isolation Despite Complete Occlusion.
Pacing Clin Electrophysiol
January 2025
Department of Cardiovascular Medicine, Institute of Science Tokyo, Bunkyo-ku, Tokyo, Japan.
Background: An indicator of successful cryoballoon (CB)-assisted pulmonary vein (PV) isolation is complete PV occlusion. However, CBs may exhibit a weaker freezing effect on the equatorial plane. This study investigates the predictors of failed left superior PV (LSPV) isolation despite complete occlusion with novel CBs.
View Article and Find Full Text PDFLocalization and Spread of Challenging Conduction Gaps of Pulmonary Veins for Atrial Fibrillation Cryoablation.
Pacing Clin Electrophysiol
December 2024
Department of Cardiology, International University of Health and Welfare Hospital, Tochigi, Japan.
Background: Cryoballoon ablation has been widely performed in patients with paroxysmal atrial fibrillation (AF). In some challenging pulmonary veins (PVs), the procedure requires additional touch-up applications against the residual conduction gaps. It implies that there could exist difficult sites to cover with standard cryoballoon applications (CBAs), resulting in resistant conduction gaps (RCGs).
View Article and Find Full Text PDFLong-Term Patient-Reported Outcomes After Radiofrequency Ablation and Cryoballoon Ablation for Paroxysmal Atrial Fibrillation: The Effect of Additional Ablations.
J Cardiovasc Dev Dis
November 2024
Department of Cardiovascular Sciences, Clinical Science Wing, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK.
Background: pulmonary vein isolation (PVI) for paroxysmal atrial fibrillation (PAF) improves health-related quality of life (QoL). This study compares QoL improvement after radiofrequency ablation (RF) and cryoballoon ablation (cryo) and assesses additional ablations' role in QoL improvement.
Methods: we evaluated the QoL of consecutive patients with first-time RF and cryo for PAF between January 2017 and June 2019.
Impact of the Individual Operator Experience and Learning Curve of a Novel Size Adjustable Cryoballoon.
J Cardiovasc Electrophysiol
December 2024
Department of Cardiovascular Medicine, Institute of Science Tokyo, Tokyo, Japan.
Background: Cryoballoon ablation is less operator-dependent than radiofrequency ablation. Recently, size-adjustable cryoballoons (SA-CBs) have become available. We sought to analyze the individual baseline operator experience's impact on procedural results.
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