Table 2.

Echocardiographic variables after pacemaker implantation

^*p < 0.05 versus apical pacing, ^†p < 0.05 versus the control. SPWMD: septal to posterior wall motion delay, S': systolic annular tissue velocity, Sm: averaged value of the peak systolic tissue velocity in the 6 basal segments, Ts: time to the peak systolic velocity with reference to the QRS complex, Tε: time to the peak strain with reference to the QRS complex, SL: time difference between the basal septum and lateral segment, SD: standard deviation of the time difference in 12 basal and mid segments