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Table 2 Echocardiographic analysis

From: Echocardiographic evidence of left ventricular untwisting-filling interplay

Variable

Mean ± SD

Median [25e-75e]

Range

Morphology

 LVIDd (mm)

50.4 ± 5.1

 

34–65

 LVIDd/BSA (mm/m2)

25.6 ± 3.1

 

17.7–39.5

 IVSd (mm)

8.6 ± 1.7

 

5–14

 PWTd (mm)

8 ± 1.4

 

5–11

 LV mass (g)

 

144 [115.3–168]

70.6–219

 LV mass/BSA (g/m2)

 

70.1 [61.1–78.8]

43.5–108

 LA volume (ml)

47.8 ± 14.6

 

36–59

 LA volume/BSA (ml/m2)

24.3 ± 6.6

 

19.2–29

LV ejection fraction (%)

 

60 [55–65]

50–72

LV global longitudinal strain (%)

19.6 ± 2

 

15.3–25.3

Diastolic function

 Doppler

  Peak transmitral E-wave (cm/s)

72.2 ± 13.6

 

33–105

  Peak transmitral A-wave (cm/s)

 

39 [32–48]

22–97

  E/A ratio

1.87 ± 0.61

 

0.66–3.33

  Peak early diastolic tissue velocity e’ (cm/s)

12.8 ± 2.9

 

5–18.5

  E/e’ ratio

 

5.6 [4.8–6.6]

2.6–15

 Speckle tracking

  Peak untwisting rate (deg/s)

68.5 ± 19.4

 

28.3–130

  Peak early diastolic strain rate Esr (s−1)

1.45 ± 0.32

 

0.67–1.62

 Color Doppler M-mode

  Peak DIVPG (mmHg)

3.2 ± 1

 

1.6–7.7

  Peak Vp (cm/s)

77.6 ± 22.8

 

38–143

  E/Vp ratio

0.99 ± 0.3

 

0.3–1.7

  1. Values are expressed as mean ± SD if normally distributed or median and interquartile [25e-75e percentile]. BSA: body surface area, DIVPG diastolic intraventricular pressure gradients, IVSd interventricular septal thickness in diastole, LA left atrial, LV left ventricle, LVIDd LV internal diameter in diastole, PWTd posterior wall thickness in diastole, Vp flow propagation velocity