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Epicardial connection between superior vena cava and right atrium contributes to subsequent atrial fibrillation: a case report.
Eur Heart J Case Rep
January 2025
Cardiovascular Centre, Social Medical Corporation Steel Memorial Yawata Hospital, 1-1-1 Haruno-machi, Yahatahigashi-ku, Kitakyushu 805-8508, Japan.
Background: The superior vena cava (SVC) acts as a non-pulmonary vein (PV) trigger for atrial fibrillation (AF) in 2%-6% of patients and harbours 25%-40% of non-PV foci. Approximately 10% of patients with AF have epicardial connections (ECs) between the atrium and PV inside the PV isolation lines, which are associated with AF recurrence. However, the contribution of EC(s) between the SVC and right atrium (RA) to subsequent AF remains unknown.
View Article and Find Full Text PDFPredictors 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.
Article Synopsis
- Atrial tachyarrhythmia (ATA) recurrence is common after pulmonary vein isolation (PVI) in patients with persistent atrial fibrillation (PsAF), with a study showing a 79.7% freedom rate from ATA after 12 months.
- Long intervals between PsAF diagnosis and ablation, as well as multiple prior unsuccessful treatments, are significant predictors of ATA recurrence following cryoballoon ablation (CBA).
- The findings emphasize the importance of timely referral for treatment to potentially improve outcomes for PsAF patients undergoing CBA.
Comparative analysis of left atrial size and appendage morphology in paroxysmal and persistent atrial fibrillation patients.
J Arrhythm
February 2025
Heart Center Munich-Bogenhausen, Department of Cardiology and Internal Intensive Care Medicine Munich Hospital Bogenhausen, Munich Municipal Hospital Group Munich Germany.
Purpose: Pulmonary vein isolation (PVI) is effective in treating atrial fibrillation (AF), but outcomes are worse for persistent AF (persAF) patients than paroxysmal AF (PAF) patients. The study aimed to identify differences in left atrial (LA) and left atrial appendage (LAA) anatomy in different AF types.
Methods: In a single-center observational study, a blinded retrospective analysis of preprocedural cardiac computed tomography angiography (CCTA) images was performed.
Remaining of contrast dye ice cap during PVI by cryoballoon ablation; a case report.
J Cardiothorac Surg
January 2025
Department of Cardiology, School of Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.
Pulmonary vein isolation (PVI) with cryoballoon (CB) ablation technology is widely used to treat drug-resistant atrial fibrillation (AF). During CB ablation, there is a possibility of forming an ice cap of contrast-color on top of the balloon. If automatic balloon deflate occurs before the ice cap dissolves, embolization to the systemic circulation is possible.
View Article and Find Full Text PDFOptimized workflow with hybrid (very) high-power short-duration radiofrequency ablation renders point-by-point pulmonary vein isolation as fast and effective as cryoballoon ablation.
J Interv Card Electrophysiol
January 2025
Department of Cardiology, Thorax Center, Cardiovascular Institute, Erasmus MC, Rotterdam, the Netherlands.
Introduction: A hybrid approach with very high-power short-duration (vHPSD) posteriorly and ablation-index guided HPSD (50 W) anteriorly seems to be an optimal balance between efficiency and effectiveness for point-by-point pulmonary vein isolation (PVI). The aim of the current study is to compare vHPSD/HPSD ablation to cryoballoon ablation (CBA) in patients with symptomatic atrial fibrillation (AF).
Methods And Results: In this retrospective single-center study, we identified 110 consecutive patients who underwent their first PVI with either vHPSD/HPSD (n = 54) or CBA (n = 56).
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