Catheter ablation in adults with congenital heart disease: A 15-year perspective from a tertiary centre.

Summary Background With the growing adult congenital heart disease (ACHD) population, the number of catheter ablation procedures is expected to dramatically increase. Data reporting experience and evolution of catheter ablation in patients with ACHD, over a significant period of time, remain scarce. Aim We aimed to describe temporal trends in volume and outcomes of catheter ablation in patients with ACHD. Methods This was a retrospective observational study including all consecutive patients with ACHD undergoing attempted catheter ablation in a large tertiary referral centre over a 15-year period. Acute procedural success rate and freedom from recurrence at 12 and 24 months were analysed. Results From November 2004 to November 2019, 302 catheter ablations were performed in 221 patients with ACHD (mean age 43.6 ± 15.0 years; 58.9% male sex). The annual number of catheter ablations increased progressively from four to 60 cases per year (P Conclusions The number of catheter ablation procedures in patients with ACHD has increased considerably over the past 15 years. Growing experience and advances in ablative technologies appear to be associated with a significant improvement in acute and mid-term outcomes.