Mapping and ablation of focal arrhythmia: Should we use three-dimensional mapping systems?

摘要

Focal arrhythmia can be conventionally ablated using multiple electrophysiology catheters including duodecapolar catheters after evaluating preprocedural arrhythmic ECG. The precise localization of the arrhythmia focus can be delineated by mapping maneuvers such as activation sequence compared to the reference catheter or surface ECG. Fluoroscopic anatomy should be well known for conventional purposes. However, recently 3-dimensional mapping tools and methods have been exponentially and widely used due to prolonged procedural and fluoroscopy times and relatively lower successful ablation rates during conventional technique. We performed a successful radio frequency ablation of idiopathic ventricular arrhythmia originating from the anterolateral free wall of the tricuspid annulus using 3-dimensional electroanatomic mapping system.