Pacing and clinical electrophysiology : PACE
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Pacing Clin Electrophysiol · Nov 2010
Linear lesion cryoablation for the treatment of atrioventricular nodal re-entry tachycardia in pediatrics and young adults.
Radiofrequency (RF) ablation is a relatively safe and effective method for treatment of atrioventricular nodal re-entry tachycardia (AVNRT), but carries a 1-2% risk of AV nodal injury. Cryothermal ablation reduces the risk of AV block, but has had decreased procedural success and increased recurrence of tachycardia. We sought to evaluate the technique of linear lesion cryoablation (LLC) for treatment of AVNRT. ⋯ LLC is an effective means of treatment for AVNRT and is associated with significantly improved procedural success and freedom from recurrence compared to single lesion methods, while at the same time obtaining equivalent efficacy to RF.