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Arch Mal Coeur Vaiss. 1997 Mar;90(3):379-83.

[Radiofrequency ablation of resistant atrial flutter: a new anatomical approach].

[Article in French]

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Service de cardiologie, hôpital Nord, Marseille.


Several reports have suggested that radiofrequency ablation could prevent atrial flutter resistant to antiarrhythmic therapy. The usual recommendation is to apply the radiofrequency current in a zone situated between the tricuspid valve and orifice of inferior vena cava. The aim of this study was to assess the efficacy of another site of ablation of flutter extending from the tricuspid valve to the orifice of the coronary sinus, either alone or associated with a site between the coronary sinus and the lateral wall of the right atrium. Twenty patients aged 42 to 78 years (mean : 6 +/- 11 years) were included. Atrial flutter was paroxysmal in 15 patients and chronic in 5 patients. Each patients had documented failure of 1 to 5 antiarrhythmic agents (average 3.1 +/- 1.6). The site of ablation was localised by anatomical criteria alone. During follow-up of 7 +/- 5 months (range 1 to 18 months), 13 patients had no recurrence of atrial flutter after ablation, 5 patients had recurrence and 2 patients had paroxysmal atrial fibrillation alone: the success rate was 15/20 (75%). This study suggests that the zone between the tricuspid valve and coronary sinus may be a site for radiofrequency ablation of atrial flutter. It is valuable alternative to the usually recommended technique.

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