| Not yet recruiting | N/A | 200 | Europe | Catheter ablation of atrial tachycardia: Ripple Mapping guided., Catheter ablation of atrial tachycardia: Conventional mapping guided. | Liverpool Heart and Chest Hospital NHS Foundation Trust, Newcastle-upon-Tyne Hospitals NHS Trust, Imperial College Healthcare NHS Trust | Atrial Tachycardia | 08/24 | 08/25 | | |