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| http://dx.doi.org/10.1016/j.jacep.2025.04.014 | DOI Listing |
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Risk of acute pericarditis after pulsed-field ablation pulmonary vein isolation.
Heart Rhythm O2
August 2025
Division of Cardiovascular Medicine, Harvard-Thorndike Arrhythmia Institute, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
Background: Postablation pericarditis (PAP) can occur after pulmonary vein isolation (PVI) using radiofrequency ablation (RFA). Pulsed-field ablation (PFA) PAP is anticipated to be lower based on its nonthermal nature and initial studies.
Objective: We aimed to evaluate the incidence of PAP after PFA and compare this with rates of RFA PAP.
High-power short-duration vs conventional radiofrequency ablation for atrial fibrillation in patients over 80 years of age: A propensity-score matched cohort analysis.
Heart Rhythm O2
August 2025
Department of Electrophysiology, TUM University Hospital German Heart Center, Munich, Germany.
Background: Data on atrial fibrillation (AF) ablation using high-power short-duration (HPSD) ablation in patients over 80 years are lacking.
Objective: This study aimed to compare the safety and efficacy of paroxysmal and persistent AF ablation using an HPSD (60-90 W/4-8 sec) vs conventional ablation (30-40 W/30 sec) in a propensity score-matched cohort of patients older than 80 years.
Methods: Overall, 232 consecutive patients aged over 80 years undergoing AF ablation were included.
High-Power Short-Duration Ablation Versus Conventional Power Ablation in Pulmonary Vein Isolation in Patients With Atrial Fibrillation: An Updated Systematic Review and Meta-Analysis of Randomized Controlled Trials.
J Cardiovasc Electrophysiol
August 2025
Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota, USA.
Background: High-power short-duration (HPSD) ablation has emerged as a promising alternative to conventional power delivery (CPD) for pulmonary vein isolation (PVI) among patients with atrial fibrillation (AF), though its efficacy, procedural efficiency, and safety profile remain uncertain.
Aims: To evaluate and compare the efficacy, procedural efficiency, and safety of HPSD versus CPD ablation strategies for PVI in patients with AF through a systematic review and meta-analysis of randomized controlled trials (RCTs).
Materials And Methods: PubMed, Embase, Cochrane Library, and ClinicalTrials.
Electrophysiological Substrate and Pulmonary Vein Reconnection Patterns in Recurrent Atrial Fibrillation: Comparing Thermal Strategies in Patients Undergoing Redo Ablation.
J Cardiovasc Dev Dis
August 2025
Gottsegen National Cardiovascular Center, 1096 Budapest, Hungary.
Background: The influence of the initial ablation modality on pulmonary vein (PV) reconnection and substrate characteristics in redo procedures for recurrent atrial fibrillation (AF) remains unclear. We assessed how different thermal strategies-ablation index (AI)-guided radiofrequency (RF) versus cryoballoon (CB) ablation-affect remapping findings during redo pulmonary vein isolation (PVI).
Methods: We included patients undergoing redo ablation between 2015 and 2024 with high-density electroanatomic mapping.
Difference in Microembolic Signals Between Flex-Tip Versus Non-Flex-Tip Type Catheters During High-Power Short-Duration Ablation.
J Cardiovasc Electrophysiol
August 2025
Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Introduction: A novel flex-tip ablation catheter has a distal tip with a unique design, especially for optimized irrigation flow against catheter contact. This study aimed to evaluate the microembolic signals (MESs) during high-power short-duration (HPSD) ablation between flex-tip and non-flex-tip catheters.
Method And Results: We retrospectively evaluated 70 patients (39 and 31 with flex-tip and non-flex-tip catheters, respectively) who underwent first-time HPSD radiofrequency ablation with a 50 W-power setting for atrial fibrillation at two institutions.