Radiofrequency ablation of atrioventricular accessory pathways associated with discordant atrioventricular connections

2002 ◽  
Vol 12 (6) ◽  
pp. 542-548
Author(s):  
Pedro Iturralde ◽  
Leonardo Rivera-Rodríguez ◽  
Milton E. Guevara-Valdivia ◽  
Luis Colín ◽  
Manlio F. Márquez ◽  
...  

Discordant atrioventricular connections associated with Wolff-Parkinson-White syndrome increase the challenge of radiofrequency ablation. We report the results and techniques of radiofrequency ablation in three patients with discordant atrioventricular connections, including one patient having double outlet right ventricle with atrioventricular reentry tachycardias. There were two males and one female, aged 14 and 22 years old. We found four accessory pathways during our electrophysiological studies, with two of them manifest on the electrocardiogram, corresponding to left paraseptal and right midseptal regions. The electrophysiological study confirmed this localization, and showed two concealed accessory pathways in the right and left paraseptal regions. Radiofrequency ablation was successful in all cases without recurrence at a mean follow-up of 18.6 months. No complications were observed during the procedures. We conclude that radiofrequency ablation is feasible and effective in the ablation of accessory pathways in patients with discordant atrioventricular connections.

2021 ◽  
pp. 1-4
Author(s):  
Sinem N. Selcuk ◽  
İlker Ertugrul ◽  
Tevfik Karagoz

Abstract Coronary sinus abnormalities are usually associated with arrhythmia disorders when symptomatic. We report a 5-year-old 14 kg patient with a giant diverticulum of coronary sinus and Wolff-Parkinson-White syndrome. Catheter ablation therapy was decided during follow-up due to inadequate response to multidrug therapy. Posteroseptal and left posterolateral accessory pathways were established and radiofrequency ablation was performed successfully through coronary sinus.


EP Europace ◽  
2017 ◽  
Vol 20 (6) ◽  
pp. 1035-1042 ◽  
Author(s):  
Wanwarang Wongcharoen ◽  
Yenn-Jiang Lin ◽  
Fa-Po Chung ◽  
Yun-Yu Chen ◽  
Tze-Fan Chao ◽  
...  

1992 ◽  
Vol 33 (6) ◽  
pp. 755-769
Author(s):  
Shih-Ann CHEN ◽  
Wing-Ping TSANG ◽  
Chih-Ping HSIA ◽  
Der-Chih WANG ◽  
Chen-En CHIANG ◽  
...  

2022 ◽  
Vol 50 (1) ◽  
pp. 030006052110697
Author(s):  
Suat Gormel ◽  
Salim Yasar ◽  
Erkan Yildirim ◽  
Serkan Asil ◽  
Veysel Ozgur Baris ◽  
...  

Objective To present the authors’ experience of Mahaim-type accessory pathways (MAPs), focusing on anatomic localizations. Methods Data from consecutive patients who underwent electrophysiological study (EPS) for MAP ablation in two tertiary centres, between January 1998 and June 2020, were retrospectively analysed. Results Of the 55 included patients, 27 (49.1%) were male, and the overall mean age was 29.5 ± 11.6 years (range, 12–66 years). MAPs were ablated at the tricuspid annulus in 43 patients (78.2%), mitral annulus in four patients (7.3%), paraseptal region in three patients (5.5%), and right ventricle mid-apical region in five patients (9.1%). Among 49 patients who planned for ablation therapy, the success rate was 91.8% (45 patients). Conclusion MAPs were most often ablated at the lateral aspect of the tricuspid annuli, sometimes at other sides of the tricuspid and mitral annuli, and infrequently in the right ventricle. The M potential mapping technique is likely to be a useful target for ablation of MAPs.


Cardiology ◽  
2017 ◽  
Vol 139 (1) ◽  
pp. 33-36 ◽  
Author(s):  
Konstantinos E. Iliodromitis ◽  
Marc Bonsels ◽  
Rolf Borchard ◽  
Anja Dorszewski

Ebstein's anomaly (EA) is a rare congenital heart disease characterized by “atrialization” of the right ventricle, due to apical displacement of the tricuspid leaflets into the right ventricle. Patients with EA may develop all kinds of supraventricular arrhythmias requiring radiofrequency ablation. Atrial fibrillation (Afib) is a common arrhythmia in EA patients, and results in debilitating symptoms that often require surgical treatment. This is a follow-up report of 2 patients with EA undergoing radiofrequency ablation for Afib. The first patient underwent pulmonary vein isolation (PVI) and the ablation of a concomitant atrioventricular nodal reentrant tachycardia. The second patient was also treated with a PVI and a redo PVI 8 months later. Both patients remain in sinus rhythm 8 months on. Radiofrequency ablation is the therapy of choice for patients with pharmacological refractory Afib, but it is not common in patients with EA.


2014 ◽  
Vol 5 (4) ◽  
pp. 60-72
Author(s):  
S E Mamchur ◽  
A V Ardashev

The causes of sudden cardiac death in patients with Wolff-Parkinson-White syndrome are considered; necessity of endocardial electrophysiological study and radiofrequency catheter ablation is discussed, including asymptomatic patients with accessory pathways.


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