Ultra-high Density Mapping With Multielectrode Catheter vs Conventional Point by Point Mapping for Ventricular Tachycardia Substrate Ablation

Ultra-high density mapping with multielectrode catheter may improve slow conduction channels identification in ventricular tachycardia substrate ablation procedures compared to conventional point by point mapping. This study compares the ability of both mapping catheters to detect slow conduction channels in areas of myocardial scar and their utility to assess substrate modification after ablation.