Figure 3. The trans-isthmus conduction interval during right ventricular pacing (TICIRV) was measured post-ablation of the cavo-tricuspid isthmus (CTI). The tracings are arranged as in Figure 2. RV pacing post-ablation of the CTI with an atrial activation sequence consistent with complete isthmus block and a TICIRV interval of 115ms is shown.
