Cardiology in the Young

Table of Contents - 2002 - Volume 12, Issue 06  


Original Article

Radiofrequency ablation of atrioventricular accessory pathways associated with discordant atrioventricular connections

Pedro Iturralde a1c1, Leonardo Rivera-Rodríguez a1, Milton E. Guevara-Valdivia a1, Luis Colín a1, Manlio F. Márquez a1 and Gonzalo Calvimontes a1
a1 Department of Electrophysiology, Instituto Nacional de Cardiología “Ignacio Chá;vez”, Mexico City, Mexico

Article author query
iturralde p   [PubMed][Google Scholar] 
rivera-rodríguez l   [PubMed][Google Scholar] 
guevara-valdivia me   [PubMed][Google Scholar] 
colín l   [PubMed][Google Scholar] 
márquez mf   [PubMed][Google Scholar] 
calvimontes g   [PubMed][Google Scholar] 

Abstract

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.

(Published Online August 15 2006)
(Accepted July 31 2002)


Key Words: Wolff-Parkinson-Whitesyndrome; congenitally corrected transposition; catheter intervention.

Correspondence:
c1 Correspondence to: Pedro Iturralde Torres, Departamento de Electrofisiología, Instituto Nacional de Cardiología “Ignacio Chávez”, Juan Badiano 1, Sección XVI, 14080, Tlalpan, D.F. México. Tel: 52 5513 3740; Fax: 52 5573 0994; E-mail: pedroi@yahoo.com

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