Atrial tachycardia as a proarrhythmic effect of radiofrequency catheter ablation for atrioventricular nodal reentrant tachycardia.
Radiofrequency catheter ablation is now the first line treatment for atrioventricular nodal reentrant tachycardia. The success rate is high with a low incidence of complications. However, a possible proarrhythmic effect of radiofrequency energy has been rarely reported and no study has demonstrated a direct correlation between the anatomic site of the radiofrequency application and the origin of a new post-ablation arrhythmia. We present a case of a focal atrial tachycardia that occurred after slow pathway radiofrequency catheter ablation for atrial nodal reentrant tachycardia and originating close to the previous ablation site. This tachycardia was successfully treated with a second ablation session.
Beninati
Serena
S
Division of Cardiology, Cardinal Massaia Hospital, Asti, Italy.
Perversi
Jacopo
J
Scaglione
Marco
M
Montefusco
Antonio
A
Gaita
Fiorenzo
F
D000328:Adult; D017115:Catheter Ablation / Q000009:adverse effects*; D004562:Electrocardiography / Q000379:methods; D005260:Female; D006801:Humans; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000150:complications* / Q000601:surgery*; D013612:Tachycardia, Ectopic Atrial / Q000175:diagnosis* / Q000209:etiology*