IJCS | Volume 31, Nº2, March / April 2018

194 Figure 1 – A 12-lead electrocardiogram showing (A) complete atrioventricular block with a right bundle-branch block, (B) VVIR pacing mode from the left ventricle with a wide QRS complex of 160 msec and a marked right bundle-branch block, and (C) VVIR pacing mode from the right ventricular mid-septum with a QRS complex of 120 msec and left bundle-branch block pattern. Figure 2 – Fluoroscopic appearance showing the final position of the lead in the right ventricular mid-septum. Guillen et al. RV resynchronization with septal lead inTOF Int J Cardiovasc Sci. 2018;31(2)193-195 Case Report