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Table 1 Comparison of echocardiographic data between patient’s groups

From: Left ventricular markers of global dyssynchrony predict limited exercise capacity in heart failure, but not in patients with preserved ejection fraction

Variable Limited performance Good performance P
  (n = 90) (n =57)
Systolic LV function    
Ejection fraction (%) 34 ± 12 41 ± 15 0.003
Interventricular septum (cm) 1.06 ± 0.1 1.11 ± 0.2 0.07
Left atrium (cm) 4.8 ± 0.7 4.5 ± 0.7 0.02
LV EDD (cm) 6.4 ± 1.3 6.1 ± 1.1 0.15
LV ESD (cm) 5.3 ± 1.0 4.9 ± 1.1 0.08
Septal long axis amplitude (cm) 0.8 ± 0.3 0.9 ± 0.3 0.21
Septal s’ wave (cm/s) 6.3 ± 1.4 7 ± 2.6 0.24
Lateral long axis amplitude (cm) 1.05 ± 0.3 1.1 ± 0.3 0.24
Lateral s’ wave (cm/s) 6.1 ± 2.4 6.5 ± 2.5 0.51
LV posterior wall (cm) 1.0 ± 0.1 1.0 ± 0.4 0.86
Aortic root (cm) 3.4 ± 0.3 3.4 ± 0.4 0.94
Diastolic LV function    
A wave velocity (cm/s) 58 ± 21 72 ± 29 0.009
Lateral a’ wave (cm/s) 7 ± 2.5 8.3 ± 3.5 0.047
E wave deceleration time (ms) 146 ± 57 168 ± 65 0.08
Lateral e’ wave (cm/s) 6 ± 2.3 6.4 ± 2 0.28
E/A ratio 1.2 ± 0.8 1.6 ± 1.1 0.045
Septal a’ wave (cm/s) 8.2 ± 2.5 8.7 ± 5 0.64
Septal e’ wave (cm/s) 6 ± 2.2 6 ± 2.8 0.71
E wave velocity (cm/s) 69 ± 24 70 ± 32 0.75
Left atrial area 27 ± 8.2 28 ± 8.6 0.88
Global LV function    
T-IVT 14.1 ± 3.8 11.8 ± 4.4 0.03
Tei index 0.74 ± 0.5 0.6 ± 0.3 0.07
IVRT 121 ± 35 99 ± 24 0.003
E/e’ ratio 12.6 ± 6.6 11.6 ± 5.6 0.41
RV function    
A wave velocity (cm/s) 51 ± 15 54 ± 22 0.44
E wave deceleration time (ms) 154 ± 68 157 ± 71 0.84
Right long axis amplitude (cm) 2 ± 0.61 2 ± 0.6 0.93
PSAP (mmHg) 44.3 ± 23 44.4 ± 17 0.99
Right e’ wave (cm/s) 9.7 ± 4.3 9 ± 3.8 0.57
Right a’ wave (cm/s) 15 ± 5.6 13 ± 4.7 0.24
Right s’ wave (cm/s) 10.6 ± 2.9 11.2 ± 3.2 0.52
EDD (cm) 3.2 ± 0.9 2.8 ± 0.6 0.06
  1. LV left ventricle, RV right ventricle, A atrial diastolic velocity, E early diastolic filling velocity, EDD end-diastolic dimension, ESD end-systolic dimension, T-IVT total isovolumic time, IVRT isovolumic relaxation time, s’ systolic myocardial velocity, e’ early diastolic myocardial velocity, a’ late diastolic myocardial velocity.