Figure 2. (A) PFA catheter positioned in the RAA and fluoroscopic right anterior oblique image of RAA angiography; (B) PFA catheter positioned in the RAA and fluoroscopic left anterior oblique image of RAA angiography; (C) Electroanatomic reconstruction of the RA/RAA and electrograms recorded by the PFA catheter located at the earliest activation site. PFA: pulse field ablation; RA: right atrium; RAA:right atrial appendage.