Characteristics of Unsuccessful Catheter Ablation of Ventricular Arrhythmia

A Moving Target for Catheter Ablation of Ventricular Tachycardia: Ablation of Scar or Arrhythmia?

SEE PAGE 2872 C atheter ablation of ventricular tachycardia (VT) reduces recurrent VT across multiple clinical settings, from electrical storm to pre-emptive therapy after a first occurrence of VT (1). Approaches for ablation include targeting the arrhythmia using electrophysiological approaches (entrainment mapping, pacemapping, and electroanatomic mapping) and substrate modification to reduce...

A systematic review of the effectiveness of catheter ablation NavX mapping system for treatment of the cardiac arrhythmia

  Background: Catheter ablation is widely used for treatment of atrial fibrillation. The use of fluoroscopic and non-fluoroscopic mapping systems in catheter ablation is common. This study conducted to investigate the safety and effectiveness of Navx non-fluoroscopic mapping system.   Methods : In this study, the appropriate electronic databases including Cochrane Library and Ovid Medline searc...

Catheter ablation of ventricular tachycardia.

Ventricular tachycardia (VT) most commonly develops in patients with structural heart disease. Myocardial infarction results in collagen replacement interspersed with surviving myocardium, which alters impulse propagation, facilitating re-entry.1 Aside from the postinfarction substrate, scar-mediated VT occurs in patients with nonischemic cardiomyopathy, Chagas disease, sarcoidosis, arrhythmoge...

Catheter ablation of ventricular arrhythmia originating from isolated outflow tract diverticulum

RATIONALE Congenital ventricular diverticulum is a rare cardiac malformation with a prevalence of about 0.26% in unselected adult patients during other diagnostic procedures. Ventricular arrhythmia originating from outflow tract diverticulum is even rarer and its etiology, epidemiology and proper treatment still remain controversial. PATIENT CONCERNS We present 2 cases of isolated outflow tra...

Catheter Ablation of Ventricular Arrhythmia in Non-Ischaemic Cardiomyopathy: Anteroseptal versus Inferolateral Scar Sub-Types