{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T02:41:26Z","timestamp":1790995286526,"version":"4.1.0"},"reference-count":28,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T00:00:00Z","timestamp":1769385600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T00:00:00Z","timestamp":1769385600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cardiology"],"abstract":"<jats:p>Introduction: Radiofrequency catheter ablation (RFCA) is an established therapy for pediatric supraventricular tachycardia (SVT). However, data on long-term outcomes and predictors of success from sizable contemporary cohorts are limited. This study aimed to evaluate the long-term clinical success rate of RFCA in a pediatric cohort and to identify independent predictors of arrhythmia-free survival. Methods: We conducted a retrospective analysis of 219 consecutive pediatric patients (age \u226418 years) who underwent their first RFCA for SVT (including atrioventricular reentrant tachycardia, atrioventricular nodal reentrant tachycardia, and atrial tachycardia) at a single tertiary center over a 6-year period. The primary outcome was long-term clinical success, defined as acute procedural success without clinical recurrence during follow-up. Univariable and multivariable logistic regression analyses were performed to identify factors associated with long-term success. Results: The overall acute procedural success rate was 96.3% (211\/219, excluding 3 with non-inducible SVT and 5 acute failures from the denominator). The long-term clinical success rate was 91.3% (based on 200\/219 patients). Multivariable analysis identified older age as a significant independent predictor of long-term success (p = 0.016). Furthermore, atrial tachycardia was associated with a lower odd of success compared to atrioventricular nodal reentrant tachycardia, although the difference was not statistically significant. Conclusion: RFCA is highly effective for treating pediatric SVT, with excellent long-term durability. Older age at procedure is a strong independent predictor of success, while patients with AT may have a higher risk of recurrence. These findings are valuable for pre-procedural counseling and patient selection.<\/jats:p>","DOI":"10.1159\/000550628","type":"journal-article","created":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T17:00:46Z","timestamp":1769446846000},"page":"1-10","source":"Crossref","is-referenced-by-count":1,"title":["A Cohort Study on Prognostic Factors for Long-Term Success after Catheter Ablation of Supraventricular Tachycardia in 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