Ablation of Consecutive Atrial Tachycardia

Ablation of consecutive atrial tachycardia (AT) after ablation of atrial fibrillation (AF) or cardiac surgery can be challenging due to complex substrate and AT mechanisms. A substantial portion of patients is known to show various tachycardias and recurrences occur in a noticeable number of cases. With the availability of novel ultra-high-density mapping techniques characterization and understanding of AT mechanisms and underlying substrate can be improved. Aim of this prospective, multi-center, randomized study is to compare a standard AT ablation approach versus minimalized ablation of the clinical AT in regards to arrhythmia free survival.

NCT Number	NCT05239364
Lead Sponsor	Evangelical Hospital Düsseldorf
Conditions	Heart Arrhythmia, Heart Diseases, Arrhythmias, Cardiac, Atrial Tachycardia
Enrollment	100 participants
Start Date	2020-12-22
Primary Completion	2027-06 (estimated)
Study Completion	2027-06 (estimated)
Updated on ClinicalTrials.gov	2026-04-30