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Europace Advance Access originally published online on July 31, 2007
Europace 2007 9(11):1075-1076; doi:10.1093/europace/eum155
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© The European Society of Cardiology 2007. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org

ABLATION

Tako-tsubo cardiomyopathy following transcatheter radiofrequency ablation of the atrioventricular node

Wadi Mawad, Peter G. Guerra, Marc Dubuc and Paul Khairy*

Electrophysiology Service, Montreal Heart Institute, 5000 Belanger Street E., Montreal, QC, Canada H1T 1C8

A 66-year-old woman with atrial fibrillation and hypertension developed tako-tsubo cardiomyopathy following acutely uneventful radiofrequency catheter ablation of the atrioventricular (AV) node. We speculate that the increase in sympathetic activity that accompanies AV node ablation contributed to the pathophysiological process, which involves increased catecholamines and/or apical adrenoreceptor density and responsiveness.

Key Words: tako-tsubo cardiomyopathy, radiofrequency ablation, atrioventricular node, catheter ablation, atrial fibrillation

* Corresponding author. Tel: +1 514 376 3330 (ext. 3800); fax: +1 514 593 2581. E-mail address: paul.khairy{at}umontreal.ca

Manuscript submitted 25 June 2007. Accepted after revision 5 July 2007.


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