The STOP AF First PAS is a prospective, global, multi-center, observational trial.

The STOP AF First Post Approval Study (PAS) is a sub-study to the Cryo Global Registry. The STOP AF First PAS is a prospective, global, multi-center, observational trial. The purpose of the study is to describe long-term clinical performance and safety data in the recurrent symptomatic paroxysmal AF population treated with Arctic Front™ and Freezor™ MAX Families of cardiac cryoablation catheters (hereafter referred to as Arctic Front™ Cardiac Cryoablation Catheter System) as an alternative to antiarrhythmic drug therapy as an initial rhythm control strategy. This PAS is a condition of the pre-market approval order (P100010/S110) by the U.S. Food and Drug Administration.

Inclusion Criteria:

• Subject has been diagnosed with symptomatic paroxysmal AF
• Subject is ≥ 18 years of age or minimum age as required by local regulations
• Planned pulmonary vein isolation (PVI) procedure using the commercially available Arctic Front™ cardiac cryoablation catheter System.
• Willing 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:

History of AF treatment with a class I or III antiarrhythmic drug, including sotalol, with the intention to prevent an AF recurrence1

. Subjects under the following conditions may be included in the study:

1. Temporary treatment with a class I or III AAD (treatment at a therapeutic dose for a period of <4 weeks prior to the index PVI procedure)

2. Recent treatment with a class I or III AAD (within 6 months of the index PVI procedure) at a dose below therapeutic threshold according to the AHA/ACC/HRS Guideline for the Management of Patients with Atrial Fibrillation

3. A subject who has received a chemical cardioversion may be included in the study. This includes a chemical cardioversion prior to enrollment and between enrollment and ablation.

   • Subject has had a prior atrial ablation (except for cavo-tricuspid isthmus (CTI) ablation for AFL)
   • Subject is enrolled in a concurrent study that has not been approved for concurrent enrollment by the global study manager
   • Subject with exclusion criteria required by local law

Subjects ≥ 18 years of age (or minimum age as required by local regulations) who have a recommendation for a pulmonary vein ablation with the Arctic Front™ cardiac cryoablation catheter System.