Patient Age (years) 18 16
VVIR pacing duration (years) 9 11
LV EDVi (ml/m2) Baseline 86 92
Follow up 65 76
LV ESVi (ml/m2) Baseline 50 48
Follow up 32 32
LV EF (%) Baseline 42 44
Follow up 50 57
AV valves Baseline moderate mild
Regurgitation Follow up mild mild
6 MWHT (meters) Baseline 570 740
Follow up 790 990
His Pacing Implantation 1.5V@1ms 0.75V@0.6
Threshold Follow up 1.5V@1ms 1.5V@0.6