Comparisons of the anatomic quantification of the LAD and the AIV between each state.

Baseline = baseline condition; RVAP = right ventricular apical pacing; LAD = left anterior descending coronary artery; AIV = anterior interventricular vein; ΦLAD = maximal diameter of the LAD; ΦAIV = maximal diameter of the AIV; ILAD-AIV = interval between the LAD and the AIV.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