Bulgarian Cardiology · Published 2025-05-13 · DOI 10.3897/bgcardio.31.e152746
This study presents data from the national electronic registry BG-EPHY on electrophysiologic (EP) studies and catheter ablations in 2024. Material and methods: Full one-year sample of the BG-EPHY registry was analysed retrospectively. Sex and age distribution of the patients, number of ablations, use of electroanatomic mapping (EAM), ablation energy source, distribution of different types of arrhythmias, acute procedural success, complications, recurrences and redo procedures are presented. Results: In 2024 ten EP centers performed 2624 ablations in 1714 men (65.3%) and 910 women, incl. 16 ablations in pediatric patients (0.61%). EAM was used in 1506 procedures (57.4%), irrigated-tip catheter – in 1535 (58.5%), cryocatheter – in 507 (19.3%), and intracardiac echocardiography – in 203 (7.7%). The most frequently performed primary ablation was pulmonary vein isolation (51.9%), followed by ablation for typical atrial flutter (15.1%) and AV nodal reentrant tachycardia (13.5%). The acute success was over 99%, while intraprocedural complications were less than 1.5%. Redo procedures for recurrence of the index arrhythmia were done in 190 patients (7.24%), with atrial fibrillation and atrial flutters accounting for the largest numbers (n = 147). Conclusion: The national registry of electrophysiology collects systematically and continuously data on all ablations of cardiac arrhythmias performed in the country. In 2024, the number of ablations increased compared to 2023, but at a slower pace. Distribution of EP procedure types was similar to previous years. Acute success was very high, while intraprocedural complications were rare.
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