Figure 1

Pacemaker implantation and His-bundle ablation. A. Implantation with biventricular pacemaker; B. In the position of right anterior oblique (RAO), ablating his-bundle in the left ventricle; C. Ablating his-bundle in the right ventricle; D. Heart specimen from the first group, the arrow indicates the ablation location; E. Heart specimen from the second group, the arrow indicates the ablation location. ORCA: ostium of right coronary artery, RV: right ventricle, LV: left ventricle.