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European Journal of Heart Failure 2009 11(7):635-637; doi:10.1093/eurjhf/hfp079
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Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2009. For permissions please email: journals.permissions@oxfordjournals.org.

The QRS interval in patients treated with resynchronization therapy: which value?

Giuseppe Boriani*, Matteo Bertini, Igor Diemberger, Mauro Biffi and Cristian Martignani

Institute of Cardiology, University of Bologna and Azienda Ospedaliera S.Orsola-Malpighi, Bologna, Italy

* Corresponding author: Tel: +39 059 349858, Fax: +39 051 344859, Email: giuseppe.boriani@unibo.it

This editorial refers to the paper entitled ‘Surface electrocardiogram to predict outcome in candidates for cardiac resynchronisation therapy: a subanalysis of the CARE-HF trial’{dagger} by Renaud Gervais et al., published on page 699

The first 150 words of the full text of this article appear below.

The electrocardiogram (ECG) was introduced into clinical practice more than 100 years ago and despite increased sophistication in diagnostic methods the 12-lead ECG remains an important reference step in patient evaluation today.

In heart failure (HF) patients, a simple 12-lead ECG provides important information that can be integrated with the clinical evaluation in order to predict patient outcome. In a cross-sectional analysis of HF patients, stratified according to New York Heart Association (NYHA) functional class, Stelbrink et al.1 reported that a more advanced NYHA class is associated with a more prolonged PR interval and a wider QRS interval. The relationship between ECG parameters and patient outcome was the subject of a series of longitudinal studies,2,3 which provided evidence that a wide QRS interval is associated with a worse prognosis, independently of the degree of left ventricular dysfunction.4,5 On the other hand, QRS duration is also an important predictor of the . . . [Full Text of this Article]


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Related articles in Eur J Heart Fail:

Surface electrocardiogram to predict outcome in candidates for cardiac resynchronization therapy: a sub-analysis of the CARE-HF trial
Renaud Gervais, Christophe Leclercq, Aparna Shankar, Sandra Jacobs, Hans Eiskjær, Arne Johannessen, Nick Freemantle, John G.F. Cleland, Luigi Tavazzi, Claude Daubert, and on behalf of the CARE-HF investigators
Eur J Heart Fail 2009 11: 699-705. [Abstract] [Full Text]