Review
Copyright ©The Author(s) 2016.
World J Cardiol. Jan 26, 2016; 8(1): 57-73
Published online Jan 26, 2016. doi: 10.4330/wjc.v8.i1.57
Figure 1
Figure 1 Structural and functional cardiac abnormalities and interaction with the other factors are able to induce non-homogenic refractoriness and abnormalities in ventricular repolarization leading to QT interval prolongation.
Figure 2
Figure 2 QT dynamicity analysis is based on automatic measurement of QT interval (QT apex and QT end) during 24 h electrocardiogram monitoring. The relationship between these measures and the corresponding RR intervals allows a slope of regression analysis to be obtained. A steeper slope reflects a wider QT variability suggesting abnormalities in ventricular repolarization.