Comparisons of Doppler hemodynamic parameters of the AIV between each state.

Baseline = baseline condition; RVAP = right ventricular apical pacing; AIV = anterior interventricular vein; Vp-Sp = peak velocities of the Sp; D-Sp = duration of the Sp; D-Sp % = percentage of the duration of the Sp divided by the R-R interval; AT-Sp = accelerating time of the Sp; Ac-Sp = acceleration of the Sp; TOSp = time from the onset of the QRS to the onset of the Sp; TPSp = time from the onset of the QRS to the peak of the Sp.Results were expressed as mean ± SD with six data points collected in each analysis. The t values and the P values were given by comparing the results of the baseline with RVAP using paired Student’s t test. Statistical significance was defined as PP values