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Pacing and Ablation Technique Using Microelectrode for Pulmonary Vein Isolation Using a Local Impedance-Guided Catheter.
Pacing Clin Electrophysiol
January 2025
Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan.
Background: The IntellaNav MiFi OI catheter (MiFi) is equipped with a sensor for local impedance (LI) monitoring and three mini-electrodes. In this study, we investigated the target LI values for a successful pulmonary vein isolation (PVI) under the pacing and ablation technique using the MiFi catheter.
Methods: Twenty-seven patients underwent PVI using the MiFi catheter under mini electrode pacing from the MiFi catheter.
Concurrent Micra Leadless Pacemaker Implantation and AVN Ablation: Computer Modeling of Novel Risk Mitigation Strategy.
Pacing Clin Electrophysiol
January 2025
Aurora Cardiovascular and Thoracic Services, Aurora Sinai/Aurora St. Luke's Medical Centers, Milwaukee, Wisconsin, USA.
Background: Concurrent Micra leadless pacemaker (Medtronic, Minneapolis, Minnesota) implantation and atrioventricular node (AVN) ablation has been shown to be feasible and safe in patients with symptomatic, drug-refractory atrial fibrillation (AF). However, major complications within the 30 days after concurrent Micra implantation and AVN ablation have been reported. We evaluated the efficacy and safety of the concurrent procedure at our institution.
View Article and Find Full Text PDFEnhanced Procedural Efficacy in Typical Atrial Flutter Ablation With a Visualizable Steerable Sheath.
Pacing Clin Electrophysiol
January 2025
Department of Cardiology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, P.R. China.
Objective: The Vizigo sheath, a novel visualizable steerable sheath, has been utilized effectively in the clinical management of atrial fibrillation. However, its application in the ablation of typical atrial flutter (AFL) remains unexplored. This study aims to evaluate and compare the efficacy and safety of the Vizigo sheath against a conventional fixed sheath during catheter ablation for typical AFL.
View Article and Find Full Text PDFIn Vivo Tissue Temperature Characteristics of Contact Force Catheter With a Mesh-Shaped Irrigation Tip: A Porcine Study.
Pacing Clin Electrophysiol
January 2025
Section of Laboratory for Animal Experiments, Institute of Medical Science, Medical Research Support Center, Nihon University, School of Medicine, Tokyo, Japan.
Background: Neither the actual in vivo tissue temperatures reached with a novel contact force sensing catheter with a mesh-shaped irrigation tip (TactiFlex SE, Abbott) nor the safety profile has been elucidated.
Methods: In a porcine model (n = 8), thermocouples were implanted epicardially in the superior vena cava, right pulmonary vein, and esophagus close to the inferior vena cava following a right thoracotomy. After chest closure, endocardial ablation was conducted near the thermocouples under fluoroscopic guidance.
Predictors of Arrhythmia Recurrence After Cryoballoon Ablation for Persistent Atrial Fibrillation: A Sub-Analysis of the Cryo Global Registry.
J Cardiovasc Electrophysiol
January 2025
Sakakibara Kinen Byoin, Fuchu, Japan.
Introduction: Freedom from recurrences of atrial tachyarrhythmia (ATA) is suboptimal after pulmonary vein isolation (PVI) in patients with persistent atrial fibrillation (PsAF). This sub-analysis from the Cryo Global Registry sought to investigate predictors of ablation success after PVI using cryoballoon ablation (CBA) for PsAF.
Methods And Results: ATA recurrence was defined as ≥ 30 s recurrence of atrial fibrillation, atrial flutter or atrial tachycardia after a 90-day blanking period and through 12-months.
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