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Radiofrequency catheter ablation of accessory pathways in patients with Ebstein’s anomaly: At 8 years of follow-up
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Abstract
Background: Data regarding long-term follow-up of radiofrequency catheter ablation (RFCA) of accessory pathways (APs) in patients with Ebstein’s anomaly (EA) are limited. The procedures are challenging due to multiple or wide APs.
Methods: Analysis was performed on clinical and periprocedural data of patients with EA referred to the centre in order to perform catheter ablation of AP. The group consisted of 22 patients (female 40.9%, mean age 33.6 ± 19.1 years). The follow-up utilized electrocardiogram and Holter monitoring.
Results: Twenty-two patients had 33 accessory pathways (8 patients had multiple APs, 11 patients broad AP). Twenty-nine different arrhythmias were ablated: 20 orthodromic atrioventricular reciprocating tachycardia (O-AVRT), 5 antidromic atrioventricular reciprocating tachycardia (A-AVRT), 3 slow/ fast atrioventricular nodal reentry tachycardia (s/f AVNRT) and 1 cavotricuspid-isthmus-dependent atrial flutter (CTI-AFL). In 3 (13.6%) patients multiple ablation targets for RFCA ablation were observed. The acute procedural success rate after the first RFCA performed was: 100% for AVNRT, 77.3% for APs and 50.0% for CTI-AFL ablation. Follow-up (mean 95.7 ± 49.8 months) was completed in 86.4% of patients. One patient had paroxysmal atrial fibrillation not targeted during ablation. One patient died due to heart failure 12 years after RFCA. Three patients who underwent RFCA of accessory pathways in the mid-1990s were lost in follow-up.
Conclusions: Radiofrequency ablation in patients with EA is challenging but safe and have a high short-term as well as long-term success rate.
Abstract
Background: Data regarding long-term follow-up of radiofrequency catheter ablation (RFCA) of accessory pathways (APs) in patients with Ebstein’s anomaly (EA) are limited. The procedures are challenging due to multiple or wide APs.
Methods: Analysis was performed on clinical and periprocedural data of patients with EA referred to the centre in order to perform catheter ablation of AP. The group consisted of 22 patients (female 40.9%, mean age 33.6 ± 19.1 years). The follow-up utilized electrocardiogram and Holter monitoring.
Results: Twenty-two patients had 33 accessory pathways (8 patients had multiple APs, 11 patients broad AP). Twenty-nine different arrhythmias were ablated: 20 orthodromic atrioventricular reciprocating tachycardia (O-AVRT), 5 antidromic atrioventricular reciprocating tachycardia (A-AVRT), 3 slow/ fast atrioventricular nodal reentry tachycardia (s/f AVNRT) and 1 cavotricuspid-isthmus-dependent atrial flutter (CTI-AFL). In 3 (13.6%) patients multiple ablation targets for RFCA ablation were observed. The acute procedural success rate after the first RFCA performed was: 100% for AVNRT, 77.3% for APs and 50.0% for CTI-AFL ablation. Follow-up (mean 95.7 ± 49.8 months) was completed in 86.4% of patients. One patient had paroxysmal atrial fibrillation not targeted during ablation. One patient died due to heart failure 12 years after RFCA. Three patients who underwent RFCA of accessory pathways in the mid-1990s were lost in follow-up.
Conclusions: Radiofrequency ablation in patients with EA is challenging but safe and have a high short-term as well as long-term success rate.
Keywords
Ebstein’s anomaly, accessory pathway, Wolff-Parkinson-White syndrome, catheter ablation
About this articleTitle
Radiofrequency catheter ablation of accessory pathways in patients with Ebstein’s anomaly: At 8 years of follow-up
Journal
Issue
Pages
1-8
Published online
2016-11-30
Page views
2036
Article views/downloads
2113
DOI
10.5603/CJ.a2016.0111
Pubmed
Bibliographic record
Cardiol J 2017;24(1):1-8.
Keywords
Ebstein’s anomaly
accessory pathway
Wolff-Parkinson-White syndrome
catheter ablation
Authors
Michał Orczykowski
Paweł Derejko
Robert Bodalski
Piotr Urbanek
Joanna Zakrzewska-Koperska
Radosław Sierpiński
Katarzyna Kalin
Andrzej Hasiec
Grzegorz Warmiński
Maria Miszczak-Knecht
Katarzyna Bieganowska
Rafał Baranowski
Maria Bilińska
Elżbieta Biernacka
Piotr Hoffman
Łukasz Szumowski
