Recent Findings with the Advance of 3D Electroanatomical Mapping in Scar-related VT
瘢痕関連心室頻拍における３Dマッピングの進歩による最新知見

Catheter ablation of scar-related VT has evolved with the advance of 3D electro-anatomical mapping systems. Identification of the critical isthmus of the VT is crucial for the successful ablation. Relationship between the abnormal local electrogram and anatomical substrate has been studied, such as area with isolated delayed potentials, electrically unexcitable scars, voltage-adjusted conducting channels. More recently, high-density mapping and multielectrode catheter technology yield the detailed electrical, anatomical and functional nature of the substrate during sinus rhythm.
In this session, we would like to discuss the recent findings of the VT ablation strategies using 3D electro-anatomical mapping systems.