FIGURE 2 PFA Catheters. (A) Circular PFA catheter with 7 electrodes. (B) Focal contact force PFA catheter. (C)Bipolar electrograms from the distal electrodes (PFA catheter electrograms) positioned in PV or LAPW pre/post ablation. The chaotic atrial fibrillation electrograms are eliminated after PFA application. The coronary sinus (CS) electrograms demonstrate continuous atrial fibrillation. PFA, pulsed field ablation; PV, pulmonary vein; LAPW, left atrial posterior wall.