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Radiofrequency ablation of atrioventricular accessory pathways associated with discordant atrioventricular connections

Published online by Cambridge University Press:  15 August 2006

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

Keywords

Wolff-Parkinson-Whitesyndromecongenitally corrected transpositioncatheter intervention
Type
Original Article
Information
Cardiology in the Young , Volume 12 , Issue 6 , December 2002 , pp. 542 - 548
Copyright
2002 Cambridge University Press

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