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Table 3 Conventional echocardiographic parameters

From: The impact of preload on 3-dimensional deformation parameters: principal strain, twist and torsion

  Pre-HD (n = 58) Post-HD (n = 58) P value
Septal thickness (mm) 10.9 ± 1.7 10.7 ± 2.0 0.292
Posterior wall thickness (mm) 10.3 ± 2.1 10.4 ± 1.8 0.692
LV end-diastolic dimension (mm) 51.4. ± 5.5 48.1 ± 5.7 <0.001
LV end-systolic dimension (mm) 31.2 ± 4.2 29.3 ± 4.5 <0.001
LV end-diastolic volume (mL/ m2) 67.4 ± 15.7 56.2 ± 17.9 <0.001
LV end-systolic volume (mL/ m2) 23.6 ± 6.5 20.6 ± 7.8 <0.001
Stroke volume (mL/m2) 42.2 ± 10.0 35.7 ± 10.8 0.033
LVEF (%) 65.1 ± 4.4 63.6 ± 4.3 0.023
LV mass index (g/m2) 119.9 ± 29.4 109.9 ± 30.0 <0.001
E wave (cm/s) 80.3 ± 24.7 58.4 ± 23.7 <0.001
A wave (cm/s) 87.5 ± 19.8 85.6 ± 29.1 0.685
E/A ratio 0.95 ± 0.34 0.74 ± 0.30 <0.001
DT (ms) 209.2 ± 43.1 224.0 ± 46.2 0.015
IVRT (ms) 84.4 ± 15.6 101.4 ± 23.8 <0.001
A wave duration (ms) 147.6 ± 17.7 148.9 ± 18.4 0.640
LA volume index (mL/m2) 49.7 ± 13.8 36.9 ± 14.4 <0.001
e’ (cm/s) 6.61 ± 1.62 6.00 ± 1.50 0.001
a’ (cm/s) 9.31 ± 2.52 8.91 ± 1.42 0.298
E/e’ 12.83 ± 5.08 10.05 ± 4.22 <0.001
  1. LV left ventricle, LVEF Left ventricular ejection fraction, E wave: Peak early diastolic mitral inflow velocity, A wave: Peak late diastolic mitral inflow velocity, DT Deceleration time of peak early diastolic mitral inflow velocity, IVRT Isovolumic relaxation time, LA left atrium, e’: Average of peak early diastolic tissue velocity measured at septal and lateral mitral annulus, a’: Average of peak late diastolic tissue velocity measured at septal and lateral mitral annulus, E/e’: Ratio between peak early diastolic mitral inflow velocity and peak early diastolic tissue velocity