Table 2

Parameters of myocardial coordination and left ventricular systolic function obtained by tissue Doppler echocardiography.
Variables
 Controls N = 20
 LBBB N = 21
 ICMP N = 19
 DCMP N = 26
 P
EMDT, ms
 14 ± 1
 45 ± 4*
 42 ± 9*
 47 ± 12*
 < 0.001
EHDT, ms
 81 ± 10
 136 ± 10*
 136 ± 25*
 163 ± 33*†‡
 < 0.001
IVCT, ms
 67 ± 9
 91 ± 8*
 96 ± 18*
 116 ± 31*†
 < 0.001
IVRT, ms
 70 ± 10
 134 ± 18*
 127 ± 34*†
 160 ± 29*†‡
 <0.001
ET, ms
 321 ± 20
 278 ± 41*
 207 ± 28*†
 220 ± 44*†
 < 0.001
PSV, cm/s
 6.3 ± 1.1
 4.1 ± 0.8*
 2.6 ± 0.8*†
 3.2 ± 1.0*†
 < 0.001
A-V, mm
 9.7 ± 1.5
 8.0 ± 1.8*
 3.9 ± 1.6*†
 5.6 ± 2.8*†
 <0.001

Abbreviations: A-V = Atrio-ventricular plane displacement; EHDT = Electro-hemodynamic delay time; EMDT = Electro-mechanical delay time; ET = Ejection time; IVCT = Isovolumic contraction time; IVRT = Isovolumic relaxation time; PSV = Peak systolic velocity.

P = Analysis of variance.

* < 0.05 vs. Controls.

†< 0.05 vs. LBBB.

‡ < 0.05 vs. ICMP.

Quintana et al. Cardiovascular Ultrasound 2008 6:39   doi:10.1186/1476-7120-6-39