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  • Title: [Endocavitary ablation of nodal reentrant tachycardia].
    Author: Jaïs P, Haïssaguerre M, Gencel L, Shah DC, Le Métayer P, Clémenty J.
    Journal: Arch Mal Coeur Vaiss; 1996 Feb; 89 Spec No 1():83-7. PubMed ID: 8734168.
    Abstract:
    Atrioventricular nodal reentrant tachycardias which, for a long time, could only be treated medically, may now benefit from catheter ablation. The rapid retrograde pathway was an effective initial target but carried a risk of complete atrioventricular block of about 10%. Nowadays, most operators deliver the radiofrequency energy (endocavitary cautery) to the slow nodal pathway. Different techniques of guidance (anatomical, electrophysiological, rapid potential, slow potential) are associated with high success rates: 90 to 100%. However, experimental studies suggest that the slow potentials arise from transitional cells within the tachycardia circuit (the anatomical substrate of the slow pathway). There is still a risk of complete atrioventricular block (1 to 5%) which should be clearly explained to patients referred for ablation of this constantly benign arrhythmia.
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