PULSED AF Post-Approval Study

Inclusion Criteria * A diagnosis of recurrent symptomatic paroxysmal AF or persistent AF * Refractory to at least one Class I or III antiarrhythmic drug (i.e., not effective, not tolerated, or not desired) * Patient is ≥ 18 years of age * Planned pulmonary vein isolation procedure with the commercially available PulseSelect™ PFA System * Willing and able to comply with study requirements and give informed consent (defined as legally effective, documented confirmation of a subject's voluntary agreement to participate in this clinical study) or authorization per institution and geographical requirements Exclusion Criteria * Long-standing persistent AF (continuous AF sustained \>12 months) * Prior left atrial catheter or surgical ablation * Patient with life expectancy \< 36 months * Presence of a permanent pacemaker, biventricular pacemaker, loop recorder/insertable cardiac monitor (ICM), or any type of implantable cardiac defibrillator (with or without biventricular pacing function) * Current or anticipated participation in any other clinical trial of a drug, device, or biologic not approved by the global study manager