Three-dimensional speckle tracking echocardiography in evaluating left
ventricular function in patients with triple vessel coronary artery
disease without myocardial infarction
Abstract
Purpose Using three-dimensional speckle tracking
echocardiography (3D-STE) to evaluate left ventricular (LV) function in
patients with triple vessel coronary artery disease(TVD) without
myocardial infarction. Methods Sixty patients with TVD without
myocardial infarction were divided into two groups according to the
results of coronary angiography. Group B (n=31):50%≤the stenosis rates
of all triple vessel coronary artery<75%; Group C (n=29):the stenosis
rates of all triple vessel coronary artery≥75%. Thirty healthy subjects
were recruited as the group A. We measured LV end-diastolic and
end-systolic volume (LVEDV, LVESV) and LV ejection fraction (LVEF) using
real-time three-dimensional echocardiography. The 3D-STE parameters of
LV included global longitudinal strain (GLS), global area strain (GAS),
global radial strain (GRS) and global circumferential strain (GCS).
Results In group C, LVEDV and LVESV were significantly
increased (all P<0.05), while LVEF, GLS, GRS, GCS and GAS were
significantly decreased compared with groups A and B (all
P<0.05). In groups A and B, there were no statistical
differences in LVEDV, LVESV and LVEF. However, GLS, GCS and GAS were
lower in group B than in group A (all P<0.05).
Conclusion Our study shows that 3D-STE can evaluate the LV
function in patients with triple vessel coronary artery disease without
myocardial infarction through multiple strain parameters.