Journal of Interventional Cardiac Electrophysiology

Abstract Background The left ventricular epicardium is a common site of origin (SOO) among patients with idiopathic premature ventricular complexes (PVCs) undergoing catheter ablation procedures. Less is known about epicardial PVC ablation among patients with myocardial scarring. The objective of this paper is to report on the presence and impact of cardiac scar among patients with epicardial PVC…

Abstract Background Achieving adequate lesion depth during ventricular tachycardia (VT) ablation within scar is challenging with conventional radiofrequency energy (RF). The lattice-tip catheter enables dual-energy ablation (RF & pulsed field [PF]) with enhanced tissue penetration. Objective We report on 3 cardiac implantable electronic device (CIED) patients with transmural apical left ventr…

Pulsed field ablation (PFA) is a novel technique for pulmonary vein isolation (PVI) in the treatment of atrial fibrillation (AF). However, the impact of electrode type on lesion formation at fixed PFA parameters remains unknown. This study investigated differences in lesion characteristics when using a 4 mm non-irrigated catheter versus an open-irrigated flexible-tip catheter in focal-bipolar PFA…

Electrical storm in congenital long QT syndrome (LQTS) may persist despite maximal β‑blockade, implantable cardioverter-defibrillator (ICD) therapy, and surgical cardiac sympathetic denervation (SCSD). When no reproducible premature ventricular contractions are documented, catheter ablation targets and procedural endpoints are uncertain. We report two consecutive young adults (LQTS1 and LQTS2) wi…

Cardiac computed tomography angiography (CCTA) is increasingly used to guide left atrial appendage occlusion (LAAO) by providing a detailed anatomical assessment. However, its incremental value over conventional planning methods, such as transesophageal echocardiography or fluoroscopy, remains uncertain. This study evaluated the additive value of CCTA-guided planning in percutaneous LAAO. A syste…