Relationships between peak EL during each phase and other parameters (univariate analysis)
Table 4 shows the correlation coefficients of peak EL to other variables. Figure 2 shows a scatter plot of peak EL during each phase and some variables.
Age, systolic BP, and mean BP did not correlate with peak EL during any phase. Diastolic BP correlated with ED-EL (r=-0.251, p=0.011). The LV mass index (LVMI) and LAVI did not correlate with peak EL during any phase.
ED-EL correlated with the indices of diastolic function (E wave peak velocity, A wave peak velocity, E/A, E/e’ in the septal side, and E/e’ in the lateral side; p<0.05). LD-EL also correlated with A wave peak velocity (r=0.513, p<0.001) and the E/A ratio (r=-0.358, p<0.001). ED-EL and LD-EL both correlated with the parameters of LVOT (diameter, peak velocity, and the time velocity integral (TVI); p<0.05).
Sys-EL correlated with EF (r=0.342, p=0.001) and the parameters of LVOT (diameter, peak velocity, and TVI; p<0.05). It also correlated with the A wave peak velocity (r=0.233, p=0.017) and the E/A ratio (r=-0.240, p=0.014).