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Europace Advance Access originally published online on March 9, 2007
Europace 2007 9(4):216-219; doi:10.1093/europace/eum026
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© The European Society of Cardiology 2007. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org

ABLATION

Successful catheter ablation of focal atrial tachycardia from the non-coronary aortic cusp

M.J. Pekka Raatikainen* and Heikki V. Huikuri

Department of Internal Medicine, Division of Cardiology, University of Oulu, PO Box 5000, FIN-90014, Finland

We describe a patient with frequent episodes of unusual paroxysmal supraventricular tachycardia. During the electrophysiological examination, the tachycardia was easily induced and terminated by atrial pacing. The earliest activation during right atrial activation mapping was located near the atrioventricular node and the His bundle. However, detailed mapping of the aortic root demonstrated that the local activation in the non-coronary aortic cusp preceded the activation at the His bundle region. Radiofrequency catheter ablation at this site terminated the tachycardia with no complications.

Key Words: Atrial tachycardia, Aortic cusp, Catheter ablation

* Corresponding author. Tel: +358 8 315 3550; fax: +358 3152127. E-mail address: pekka.raatikainen{at}oulu.fi

Manuscript submitted 18 November 2006. Accepted after revision 31 January 2007.


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