The study is designed to determine the best practices in the patient pathway, and to analyze pre-procedural, procedural and follow-up workflow data related with ablation of atrial fibrillation where the FARAPULSE™ Pulsed Field Ablation System is used in a commercial and standard of care setting. Workflow-related variables, inclusive of pre-procedural imaging, methods of transseptal access, anesthesia/sedation technique, intracardiac mapping, ablation settings, dosing strategy, lesion sets and general procedure management, will be used to identify predominant workflow schemes that will be associated with patient demographics, procedure-related complications (safety parameters), and one-year effectiveness parameters.

The study data can be used for procedural workflow optimization when using Pulsed Field Ablation for the ablation treatment of Atrial Fibrillation based on patient demographics, cardiac anatomy and arrhythmia characteristics.

Inclusion Criteria:

• Subjects are prospectively planned and intended to be treated with the FARAPULSE™ Pulsed Field Ablation system for cardiac tissue ablation, per physician's medical judgement, and as per hospitals' standard of care
• Subjects who are willing and capable of providing informed consent
• Subjects who are willing and capable of participating to this Registry at an approved clinical investigational center
• Subjects whose age is 18 years or above, or who are of legal age to give informed consent specific to state and national law

Exclusion Criteria:

• Subjects who are currently enrolled in another investigational study or registry that would directly interfere with the current study. Exceptions are when the subject is participating in a mandatory governmental registry, or a purely observational registry, that do not interfere with the current study
• Prior Left Atrium Ablation

• Subjects who will undergo an ablation procedure with the FARAPULSE™ Pulsed Field Ablation system, per physician's medical judgement, and according to hospitals' standard of care.