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Table 2 Echocardiographic data of the study groups

From: Usefulness of tissue Doppler-derived atrial electromechanical delay for identifying patients with paroxysmal atrial fibrillation

ParametersHealthy controls
(n = 50)
Disease controls
(n = 33)
PAF patients
(n = 63)
P
LA diameter (mm)32 ± 540 ± 7†43 ± 7†< 0.001
LA volume (mL)32 ± 1044 ± 10†49 ± 15†< 0.001
LA volume index (mL/m2)19 ± 627 ± 5†28 ± 9†< 0.001
LV end-diastolic dimension (mm)42 ± 547 ± 7†49 ± 7†< 0.001
LV ejection fraction (%)65 ± 561 ± 1262 ± 80.088
Thickness of IVS (mm)9 ± 110 ± 2†10 ± 2†< 0.001
Thickness of posterior wall (mm)9 ± 110 ± 1†9 ± 2†§< 0.001
LV mass (g)120 ± 29177 ± 65†171 ± 65†< 0.001
LV mass index (g/m2)73 ± 14108 ± 33†98 ± 30†< 0.001
LV hypertrophy (%)0 (0)17 (52)17 (27)< 0.001
E velocity (cm/s)63 ± 1360 ± 2364 ± 170.59
A velocity (cm/s)71 ± 2080 ± 2561 ± 23*‡0.001
E/A0.95 ± 0.330.83 ± 0.46*1.21 ± 0.56*‡< 0.001
Deceleration time (ms)213 ± 56224 ± 68205 ± 700.41
E’, septal (ms)7.7 ± 2.36.1 ± 2.5†7.7 ± 2.4‡< 0.001
E’, lateral (ms)10.3 ± 3.17.4 ± 2.9†9.5 ± 2.8‡< 0.001
Averaged E’ (ms)9.0 ± 2.56.7 ± 2.6†8.6 ± 2.3‡< 0.001
A’, septal (ms)10.0 ± 1.78.8 ± 2.2*7.6 ± 2.6†§< 0.001
A’, lateral (ms)10.8 ± 2.59.5 ± 2.6*8.0 ± 3.0†§< 0.001
Averaged A’ (ms)10.4 ± 1.89.2 ± 2.3*7.8 ± 2.7†§< 0.001
Averaged E/E’,7.4 ± 2.310.0 ± 5.47.9 ± 2.80.086
Averaged E’/A’0.90 ± 0.330.79 ± 0.421.27 ± 0.63†‡< 0.001
  1. Values are mean (±SD) or number of subjects (%)
  2. IVS Indicates interventricular septum
  3. *P < 0.05 and †P < 0.01 vs Healthy controls; §P < 0.05 and ‡P < 0.01 vs Disease controls