PMID: 18410033Apr 16, 2008Paper

Prognostic value of QTc interval dispersion changes during exercise testing in hypertensive men

Srpski arhiv za celokupno lekarstvo
Dragan DjordjevićBojana Stamenković

Abstract

The prognostic significance of QTc dispersion changes during exercise testing (ET) in patients with left ventricular hypertrophy is not clear. The aim was to study the dynamics of QTc interval dispersion (QTcd) in patients (pts) with left ventricular hypertrophy (LVH) during the exercise testing and its prognostic significance. In the study we included 55 men (aged 53 years) with hypertensive left ventricular hypertrophy and a negative ET (LVH group), 20 men (aged 58 years) with a positive ET and 20 healthy men (aged 55 years). There was no statistically significant difference in the left ventricular mass index (LVMI) between LVH group and ILVH group (160.9+/-14.9 g/m2 and 152.8+/-22.7 g/m2). The first ECG was done before the ET and the second one was done during the first minute of recovery, with calculation of QTc dispersion. The patients were followed during five years for new cardiovascular events. During the ET, the QTcd significantly increased in LVH group (56.8+/-18.0 - 76.7+/-22.6 ms; p<0.001). A statistically significant correlation was found between the amount of ST segment depression at the end of ETand QTc dispersion at the beginning and at the end of ET (r=0.673 and r=0.698; p<0.01). The QTc dispersion was increase...Continue Reading

References

Jun 1, 1990·British Heart Journal·C P DayR W Campbell
Mar 15, 1997·Journal of the American College of Cardiology·J P SinghG Hart
Feb 7, 1998·American Heart Journal·G RoukemaG Hart
Nov 3, 1998·American Journal of Hypertension·Z BuğraK Büyüköztürk
Feb 22, 2005·International Journal of Cardiology·Yasushi AkutsuTakashi Katagiri
May 21, 2005·Journal of Human Hypertension·G LeottaF Veglio
Jan 18, 2006·Journal of the American College of Cardiology·Sabine M J M StrausJacqueline C M Witteman

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Citations

Apr 26, 2016·International Journal of Food Sciences and Nutrition·C ApostolidouC Kourtidou-Papadeli

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