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Europace 2008 10(Supplement 3):iii106-iii109; doi:10.1093/europace/eun224
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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

This article appears in the following Europace issue: Spotlight Issue: Cardiac Imaging in EP and CRT [View the issue table of contents]

IMAGING IN CRT

Selecting CRT candidates: the value of intracardiac mapping

Josef Kautzner* and Petr Peichl

Department of Cardiology, Institute for Clinical and Experimental Medicine, Vídenská 1958/9, 140 21 Prague 4, Czech Republic

Cardiac resynchronization therapy (CRT) has become standard therapy for selected patients with congestive heart failure and dyssynchrony of cardiac contraction that is a consequence of electrical dyssynchrony. Intracardiac mapping enables detailed analysis of electrical activation sequences far beyond the standard ECG and allows description of specific activation associated with the benefit of CRT. Intracardiac mapping can also localize the region of the latest ventricular activation and areas of slow conduction, and thus potentially assist in selection of optimal pacing site for CRT. Precise description of electrical activation sequences, and correlation with parameters of mechanical dyssynchrony, may contribute to understanding the principles and mechanisms underlying the effect of CRT.

Key Words: Cardiac mapping, Resynchronization therapy, Conduction disturbances

* Corresponding author. Tel: +4202 4172 2011; fax: +4202 6136 2985. E-mail address: joka{at}medicon.cz


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