The LOWE AF HD is a prospective, single-center, non-randomized study to assess safety, efficacy, acute and long-term outcome data of a specific ablation approach as treatment of paroxysmal atrial fibrillation.

Pulmonary vein isolation using radiofrequency (RF) ablation is acknowledged used treatment strategy for atrial fibrillation, many different approaches are recently implemented. The specific approach used in this study includes:

• Multi-directional high-density mapping
• High power - short duration settings
• Contact force sensing ablation catheter The aim of LOWE AF HD is to assess the acute safety and success rate of this approach and also the long-term outcome assessed by atrial recurrences arrythmias collected by an implantable loop recorder.

Inclusion Criteria:

• Consecutive and unselected patients with a class I-IIa indication for ablation of paroxysmal AF
• 18 Years and older.
• Able and willing to provide written informed consent prior to any clinical investigation related procedure
• Able and willing to complete all required study procedures through 12 months
• Life expectancy less than 12 months

Exclusion Criteria:

• Persistent or long-standing persistent AF
• Presence of thrombus in left atrium and left atrium appendage
• MI, CABG or PCI within preceding 3 months
• Left atrial diameter > 5.0 cm
• LVEF < 35%
• NYHA class III or IV
• Previous atrial fibrillation ablation procedure with high density and high-power short duration approach
• Previous tricuspid or mitral valve repair surgery

Patients eligible for participation in the study have indication for ablation of paroxysmal AF and are eligible for PVI by catheter ablation based on the respective ACC/AHA/ESC Guideline valid at the date of procedure.