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Archivos de cardiología de México
versão On-line ISSN 1665-1731versão impressa ISSN 1405-9940
Resumo
AMARA, Walid; DE SISTI, Antonio; ROMERO, Laura e TONET, Joelci. Catheter cryoablation of atrio-ventricular nodal reentrant tachycardia. A clinical review. Arch. Cardiol. Méx. [online]. 2010, vol.80, n.4, pp.283-288. ISSN 1665-1731.
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.
Palavras-chave : AVNRT; Cryoablation; AV-block; France.