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A) RV endocardial ablation with Lugol’s solution. (i) ECG, (ii) Vm activation map and (iii) endocardial TTC staining before (CON) and after (+Lugol’s) RV endocardial Lugol’s. Purkinje ablation resulted in QRS prolongation and delayed RV epicardial activation. Tissue ablation was confirmed by the white appearance on TTC. B) Occurrence of PVCs was not affected by endocardial ablation.
