Background Clinically effective ablation approaches for patients with persistent atrial
fibrillation (AF) are still being debated. So far, ablation targets and strategies beyond …

Intramural origin of ventricular arrhythmias is one of the reasons for failure of catheter
ablation, especially in nonischemic substrates. Conventional unipolar ablation has limited …

Pulmonary vein isolation (PVI) by radiofrequency (RF) ablation is an important alternative to
antiarrhythmic drugs in the treatment of symptomatic atrial fibrillation. However, the inability …

Background Pulsed field ablation (PFA) leads to cell death by irreversible electroporation.
There are limited data about PFA lesion characteristics in the ventricle, particularly in the …

Background: Pulsed-field ablation (PFA) is a nonthermal energy with higher selectivity to
myocardial tissue in comparison to radiofrequency ablation (RFA). We compared the effects …

Background: Pulsed field ablation (PFA) has recently been shown to penetrate ischemic
scar, but details on its efficacy, risk of arrhythmias, and imaging insights are lacking. In a …

Aims Data on ventricular pulsed-field ablation (PFA) are sparse in the setting of chronic
myocardial infarction (MI). The objective of this study was to compare the biophysical and …

Background Radiofrequency catheter ablation (RFCA) of ventricular arrhythmias (VAs)
arising from the inaccessible basal region of the left ventricular summit (LVS) is challenging …

Objectives This study investigated the impact of the type of catheter irrigant used during
delivery of radiofrequency ablation. Background The use of half-normal saline (HNS) as an …

Background Ablation index (AI) is used for guiding therapy during pulmonary vein isolation.
However, its potential utility in ventricular myocardium is unknown. Objectives This study …