To evaluate the intraoperative effectiveness of the AIFIB software in real time in the detection of atrial fibrillation drivers during an ablation procedure.

Inclusion Criteria:

• Patients 18 years of age or older
• Etiology in the following list:
• Atrial fibrillation for which a conventional anatomical approach alone (pulmonary vein isolation) is not performed: persistent AF, long standing persistent AF paroxysmal AF (redo), paroxysmal AF
• Atrial tachycardia de novo or secondary to AF ablation.

Exclusion Criteria:

• Contraindication to AF ablation
• Major bleeding disorder

Patients ≥ 18 years with an indication of ablation of FA or TA