Catheter cryoablation of atrio-ventricular nodal reentrant tachycardia. A clinical review

Cryoablation is a new method in interventional cardiac electrophysiology for percutaneous catheter ablation of cardiac arrhythmias. Cryothermal mapping enables the functional assessment of a particular site before permanent ablation. In this way, the targeted tissue may be confirmed as safe for ablation. This is useful in high-risk ablation, for example, next to the His bundle or the compact AV node. In the last decade, several studies have been addressed to AV-nodal reentry tachycardia (AVNRT) cryoablation. Current experiences indicate that cryoablation for AV-nodal reentry tachycardia is effective and safe. However, its wide use seems to be somewhat limited by a slightly lower efficacy when compared to radiofrequency. Further studies evaluating long-term success of cryothermal ablation versus radiofrequency are warranted. However, for high-risk ablations, cryoenergy is very helpful and should be systematically used. This article is a review of acute and long-term effects of cryoablation in patients suffering of AV-nodal reentry tachycardia episodes.

Bibliographic Details

Main Authors:	Amara,Walid, De Sisti,Antonio, Romero,Laura, Tonet,Joelci
Format:	Digital revista
Language:	English
Published:	Instituto Nacional de Cardiología Ignacio Chávez 2010
Online Access:	http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-99402010000400013
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