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European Journal of Heart Failure 2002 4(5):613-615; doi:10.1016/S1388-9842(02)00029-6
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© 2002 European Society of Cardiology

QT duration and dispersion response to exercise in coronary artery disease patients with and without myocardial infarction

Maciej Sosnowski*, Janina Skrzypek-Wanha, Aleksandra Cichy-Tarabula, Tadeusz Petelenz and Michal Tendera

IIIrd Department of Cardiology, Silesian Medical School Ziolowa Street 47, 40635 Katowice, Poland

* Corresponding author. Tel.: +48-32-2523930; fax: +48-32-2523930

Received February 15, 1999; Revised November 21, 2001; Accepted January 19, 2002

The first 10% of the full text of this article appears below.


   1. Background
 
QT interval prolongation during exercise has been reported in patients with coronary artery disease (CAD), mainly in those after myocardial infarction (MI). Much less is known about the behaviour of the spatial dispersion of QT. CAD-patients with three vessel disease had increased precordial SD-QT>30 ms in the resting ECG. This criterion was proposed to diagnose a critical stenosis of the left main coronary artery. Patients after MI also had increased QTc dispersion in resting ECG; however, its behaviour in response to exercise remains unclear.

This study deals with the changes in measures of ventricular repolarisation induced by exercise, and later in the recovery period, in patients after myocardial infarction (MI) and in those with uncomplicated coronary artery disease (CAD).


   2. Material and methods
 
The 58 patients (12 females, 46 males, mean age 53±8 years . . . [Full Text of this Article]


   3. Results
 

   4. Discussion
 

   5. Conclusion
 

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