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Table 2 Effect of Biv Pacemaker Optimization on Echo Doppler Variables at Baseline Heart Rate

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

< 0.001

Pulmonary artery pressure (mm Hg)

52 ± 7

44 ± 8

0.001

  1. Values are Mean ± SD LV: left ventricle.; LVOT: left ventricular outflow tract; VTI: velocity time integral