Lattice-tip dual energy ablation creates effective ventricular lesions through transmural scar that might inadvertently increase lead capture thresholds on the opposing surface

Abstract Background Achieving adequate lesion depth during ventricular tachycardia (VT) ablation within scar is challenging with conventional radiofrequency energy (RF). The lattice-tip catheter enables dual-energy ablation (RF & pulsed field [PF]) with enhanced tissue penetration. Objective We report on 3 cardiac implantable electronic device (CIED) patients with transmural apical left ventricular (LV) scars and drug-refractory VT. Each underwent endocardial LV ablation using RF & stack