QT dispersion in elderly athletes with left ventricular hypertrophy

International Journal of Sports Medicine
F GalettaF Pentimone

Abstract

The purpose of this study was to examine the QT dispersion in elderly endurance athletes with left ventricular (LV) hypertrophy. Sixteen athletes (males, mean age 67.6 +/- 4.5 years) with mild to moderate LV hypertrophy, were compared with 16 age-matched hypertensive patients with similar degree of LV hypertrophy and 16 age-matched healthy sedentary controls. All the participants underwent echocardiogram and 12-lead electrocardiogram. QT dispersion was defined as the difference between maximum and minimum QT intervals in the different leads. QT dispersion was corrected (QTc) for heart rate according to Bazett's formula. The results showed in athletes and hypertensive patients comparable LV mass (258.2 +/- 14.2 vs. 262.4 +/- 16.8 g, ns), which was significantly higher than that of controls (p < 0.001). Trained subjects had QT dispersion (38.6 +/- 10.2 ms) and QTc dispersion (39.4 +/- 11.3 ms) significantly lower than hypertensive patients (QT dispersion: 68.4 +/- 11.4 ms; QTc dispersion: 72.2 +/- 8.4, p < 0.001) and comparable with controls (QT dispersion: 44.3 +/- 8.4 ms; QTc dispersion: 46.2 +/- 6.2 ms, ns). In conclusion, in elderly athletes training-induced myocardial hypertrophy was characterized by a QT dispersion signific...Continue Reading

Citations

Oct 7, 2004·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·Fabio GalettaGino Santoro
Mar 3, 2005·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·F GalettaA Carpi
Jan 22, 2014·European Journal of Sport Science·Kazuto OmiyaHaruki Musha
Oct 10, 2019·Angewandte Chemie·Riccardo MarinMuralee Murugesu

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