Catheter Ablation For Reentrant Atrial Tachycardia In Dextro-Transposition Of The Great Arteries Patients After Atrial Switch

This dataset contains anonymized, patient-level data from an ambispective cohort study evaluating the long-term efficacy of catheter ablation for reentrant atrial tachycardia in adult patients with dextro-transposition of the great arteries (d-TGA) after atrial switch (Mustard or Senning procedures). The dataset includes demographic characteristics, congenital heart disease subtype, procedural variables (including ablation approach and tachycardia mechanism), electrophysiological parameters, acute procedural outcomes, and long-term follow-up data, including arrhythmia recurrence and survival outcomes. All data have been pseudonymized in accordance with applicable data protection regulations. The dataset is provided to enable replication of the analyses and validation of the study findings.