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Table 2 Hemodynamics TDI-derived velocity and strain and 2D-strain echocardiography at baseline and after follow-up.

From: Circumferential 2D-strain imaging for the prediction of long term response to cardiac resynchronization therapy

  Responder Non-Responder
  BASELINE FOLLOW-UP p BASELINE FOLLOW-UP P
LVEF 0.23 0.36 < 0.01 0.26 0.24 0.12
LVESV [ml] 185.3 136.6 0.01 213.6 228.3 0.34
s-wave [cm/s] 3.26 (± 0.50) 3.64 (± 1.20) 0.39 2.62 (± 0.32) 3.06 (± 3.06) 0.30
TDI strain [%] 18.62 (± 5.61) 15.76 (± 3.79) 0.22 18.40 (± 4.01) 20.99 (± 6.11) 0.34
Max. delay radial [ms] 167.6 (± 104.4) 98.1 (± 43.6) 0.04 178.7 (± 92.2) 144.5 (± 122.5) 0.75
Max. delay longitudinal [ms] 167.5 (± 90.5) 111.7 (± 80.6) 0.02 217 (± 125) 152 (± 132) 0.15
Max. delay cicumferential [ms] 246.1 (± 94.4) 123.3 (± 92.52) 0.00023 195.0 (± 85.6) 135.18 (± 136.09) 0.84
Mean circumferential 2D strain [%] -6.7 (± 2.9) -8.0 (± 2.4) 0.13 -6.38 (± 1.7) -5.9 (± 3.2) 0.46
Mean longitudinal 2D strain [%] 5.6 (± 2.6) 6.4 (± 3.6) 0.49 5.2 (± 1.7) 5.0 (± 1.8) 0.83
Mean radial 2D strain [%] 12.1 (± 6.8) 12.8 (± 7.5) 0.49 9.8 (± 5.1) 8.9 (± 5.6) 0.87