Abbreviations: 3D, three-dimensional; AF, atrial fibrillation; AP, accessory pathway; ARVC,
arrhythmogenic right ventricular cardiomyopathy; AT, atrial tachycardia; AVB, atrioventricular …

Highlights•Postinfarction ventricular tachycardia (VT) caused by a reentrant circuit is an
important clinical problem.•Catheter ablation may not prevent VT because of difficulty in …

Background: Catheter ablation is effective for eliminating most drug-refractory ventricular
arrhythmias (VA). However, a major reason for procedural failure is arrhythmia originating …

Background—Radiofrequency ablation (RFA) of ventricular tachycardia (VT) can fail
because of inaccessibility to the VT substrate. Transarterial coronary ethanol ablation can be …

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

Background We previously reported feasibility of irrigated needle ablation (INA) with a
retractable 27-G end-hole needle catheter to treat nonendocardial ventricular arrhythmia …

The left ventricular outflow tract (LVOT) is a frequent source of arrhythmias in patients with
and without structural heart disease. An understanding of the anatomic relationship between …

Ventricular arrhythmias can present as asymptomatic premature ventricular complexes
(PVCs) or non-sustained ventricular tachycardia (VT), symptomatic presentation of the …

Objectives The goal of this study was to assess the value of a stepwise, image-guided
ablation approach in patients with cardiomyopathy and predominantly intramural scar …

Non-ischaemic cardiomyopathy (NICM) encompasses a heterogeneous group of disorders
that includes genetic, idiopathic, post viral and inflammatory cardiomyopathies. NICM is …