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Europace Advance Access published online on July 10, 2008
Europace, doi:10.1093/europace/eun184
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Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2008. For permissions please email: journals.permissions@oxfordjournals.org

CASE REPORT

Successful catheter ablation of premature ventricular contractions originating from the tricuspid annulus using a Halo-type catheter

Takumi Yamada*, Jeffery Scott Allison, Hugh Thomas McElderry, Harish Doppalapudi, Andrew E. Epstein, Vance J. Plumb and George Neal Kay

Division of Cardiovascular Disease, University of Alabama at Birmingham, VH B147, 1670 University Boulevard, 1530 3rd Avenue South, Birmingham, AL 35294-0019, USA

A 31-year-old woman with idiopathic premature ventricular contractions originating from the tricuspid annulus (TA) underwent electrophysiological testing. Activation mapping with a 20-pole bipolar Halo-type catheter positioned along the TA revealed the earliest ventricular activation at a site between 7 and 8 o'clock along the TA. A reversal in the polarity of the local ventricular electrograms was observed between the two neighbouring electrode pairs of the TA catheter. Successful catheter ablation was achieved at the ventricular site between those electrode pairs. A Halo-type catheter may be effective for mapping and catheter ablation of ventricular arrhythmias originating from the TA.

* Corresponding author. Tel: +1 205 975 4724; fax: +1 205 975 4720. E-mail address: takumi-y{at}fb4.so-net.ne.jp

Manuscript submitted 5 April 2008. Accepted after revision 23 June 2008.


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