From: Shortening of atrioventricular delay at increased atrial paced heart rates improves diastolic filling and functional class in patients with biventricular pacing
Echo Doppler Variables
Baseline
Optmial
P Value
LV Diastolic Filling Time (ms)
396 ± 75
420 ± 63
0.016
LVOT VTI (cm)
17.5 ± 4.8
19.4 ± 5.2
< 0.001
LV ejection time (ms)
287 ± 40
298 ± 36
Pulmonary artery pressure (mm Hg)
52 ± 7
44 ± 8
0.001