Spanish Catheter Ablation Registry. 17th Official Report of the Spanish Society of Cardiology Working Group on Electrophysiology and Arrhythmias (2017)

Abstract Introduction and objectives This report describes the findings of the 2017 Spanish Catheter Ablation Registry. Methods Data collection was retrospective. A standardized questionnaire was completed by each of the participating centers. Results A total of 15 284 ablation procedures were performed by 98 institutions (the highest number of ablations and institutions historically reported in this registry), with a mean of 156 ± 126 and a median of 136 procedures per center. For the first time, the most frequently treated ablation target was atrial fibrillation (n = 3457; 22.6%), followed by cavotricuspid isthmus (n = 3449; 22.5%) and atrioventricular nodal re-entrant tachycardia (n = 3429; 22.4%). The overall success rate was 87%. The rate of major complications was 2.6%, and the mortality rate was 0.09%. The percentage of procedures performed without fluoroscopic support increased to 6% of all ablations, and 2.3% of all ablations were performed in pediatric patients. Conclusions The Spanish Ablation Catheter Registry systematically and uninterruptedly collects data on the ablation procedures performed in Spain, revealing that both the number of ablations and the number of centers performing them has progressively increased, while maintaining a high success rate and a low percentage of complications.