Comparison of Presystolic Purkinje and Late Diastolic Potentials for Selection of Ablation Site in Idiopathic Verapamil Sensitive Left Ventricular Tachycardia

Abstract

Compared to DP alone, earliest PP (with or without concomitant DP) might be superior for selection of target site of RF ablation in patients with ILVT.

Ablating Premature Ventricular Complexes: Justification, Techniques, and Outcomes

“…In such cases, both the fascicular signals and any adjacent fragmented myocardial signals might be potential targets of ablation. 19,51 However, earliest pre-Purkinje potentials may be recorded quite proximally in the His-Purkinje system with a high risk of AV block with ablation at such sites, and it may be prudent to initially target more distal prepotentials. 18,19 Ablation targeting the fascicular signals in the posteroseptal region may lead to exit of the PVCs using other fascicles and change in QRS axis.…”

Catheter Ablation for Ventricular Tachycardia

“…83,84 Mechanical trauma from catheter manipulation often terminates VT and prevents reinitiation. Ablation then targets the site of mechanical termination, low amplitude, or diastolic sinus rhythm potentials or creates a line of lesions through this region.…”

Fascicular and Nonfascicular Left Ventricular Tachycardias in the Young: An International Multicenter Study

“…Those presenting within the first year of life may resolve spontaneously, while others require antiarrhythmic therapy and/or catheter ablation procedures. Prior reports are largely case reports and small series of patients undergoing various ablation strategies with only immediate outcome of catheter ablation described . The purpose of this study was to review clinical presentation and outcomes in pediatric patients with VT arising from left heart structures.…”