Clinical Research Directory

Inclusion Criteria: 1. Patient aged 18 years or older. 2. Patient candidate for catheter ablation to treat paroxysmal or persistent atrial fibrillation, atrial tachycardia, de novo or after one or several previous ablation procedures, and for which the investigator considers using VX1 or Volta AF-Xplorer or Volta AF-Xplorer II. 3. Patient able and willing to provide written informed consent to participate in the study. 4. Only for France: Patient affiliated to the French social security system. Exclusion Criteria: 1. Contraindication to AF/AT catheter ablation. 2. Patient who is or could potentially be pregnant. 3. Person deprived of liberty or under guardianship. 4. Person unable to undergo a medical monitoring for geographical, social or psychological reasons. 5. Patient\'s refusal to participate in the study. 6. Enrollment in an investigational study evaluating another device, biologic, or drug.