Does dynamic high-density functional substrate mapping improve the identification of critical ablation targets compared to sinus rhythm mapping in patients with ischemic ventricular tachycardia?
Dynamic high-density functional substrate mapping during specific pacing improves the accuracy of identifying critical targets for ischemic VT ablation compared to standard sinus rhythm mapping.
LP and LAVA observed during the SP were able to identify regions critical for ablation in VT with a greater accuracy than SR mapping. This may improve substrate characterization in VT ablation. The combination of ablation to critical sites and SP-derived LP/LAVA requires further assessment in a randomized comparator study.
Srinivasan et al. (Wed,) studied this question.