Kocijančić, Aleksandar (36016706900)Aleksandar (36016706900)KocijančićSimić, Dragan (57212512386)Dragan (57212512386)SimićMujović, Nebojša (16234090000)Nebojša (16234090000)MujovićPotpara, Tatjana (57216792589)Tatjana (57216792589)PotparaKovačević, Vladan (57190845395)Vladan (57190845395)KovačevićMarinković, Milan (56160715300)Milan (56160715300)MarinkovićMarić-Kocijančić, Jelena (57205308445)Jelena (57205308445)Marić-KocijančićBelović, Dušica Kocijančić (57194538164)Dušica Kocijančić (57194538164)Belović2025-06-122025-06-122020https://doi.org/10.2298/VSP180314092Khttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85086242832&doi=10.2298%2fVSP180314092K&partnerID=40&md5=178992a973c632d01b0ea31dd5fc0f20https://remedy.med.bg.ac.rs/handle/123456789/5230Background/Aim. Atrioventricular nodal (AV) reentry tachycardia (AVNRT) is the most common form of supraventricular tachycardia. Treatment of choice is a catheter-ablation of the slow pathway of the AV node. The aim of the study was to present the outcomes of this procedure after ten years of follow-up. Methods. The catheter-ablation procedure was performed in 92 patients (30 men and 62 women, mean age 52.0 ± 13.3 years, range 19 to 76 years) with confirmed AVNRT during the electrophysiological examination, from 2007 to 2009. Out of these, 64 patients were followed-up for ten years by inviting them to clinical examinations regularly. The occurrence of AV block, arrhythmia and the use of antyarrhythmic drugs were the main outcomes of the ten-year follow-up. Multivariate logistic regression was applied to identify significant predictors of arrhythmia after a follow-up period. Results. The primary success of intervention was achieved in 91 (98.9%) patients. Third-degree AV block was registered in 1 (1.1%) patient after the intervention, which required the implantation of a pacemaker. After ten years of follow-up, AVNRT relapses were not registered. A total of 7 out of 64 (10.9%) patients died during the follow-up period, mostly due to non-cardiac causes. After ten years of follow-up, first-degree AV block was registered in six (10.5%) patients, whereas other arrhythmias were observed in 17 (29.8%) patients such as atrial fibrillation or flutter, atrial premature beats and sinus tachycardia. The number of antiarrhythmic drugs were reduced from 2.1 ± 1.2 at baseline to 0.5 ± 0.6 during follow-up, mostly beta-blockers, propafenone and amiodarone, and 33 (57.9%) patients were no longer using anti-arrhythmic therapy. Logistic regression identified participant’s age above 55 years at baseline and re-intervention performed after the initial catheter-ablation as significant predictors of arrhythmia after a 10-year follow-up, independent from gender and arterial hypertension at baseline. Conclusion. The catheter-ablation of AVNRT represents a successful and safe procedure, from the perspective of ten-year follow-up. © 2020 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.ArrhythmiasAtrioventricular nodal reentryCardiacCatheter ablationTachycardiaTreatment outcome