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The Egyptian Heart Journal

Table 2 Descriptive analysis of the measured variables of the study (in alphabetical order)

From: Correlation between echocardiographic estimation of right atrial pressure and invasive measurement of central venous pressure in postoperative pediatric patients with congenital heart disease: a prospective observational study

Variables

Unit

Minimum

Maximum

Mean

Standard deviation

Median

Interquartile range (IQR)

Days, postoperative

Days

1

6

3.44

1.42

4

2.25

Descending aorta, maximal diameter

Millimeters

4

13

6.87

1.81

6.55

2

Descending aorta, minimal diameter

Millimeters

2.5

10

4.9

1.62

4.3

2.15

1. Hepatic vein parameters

Hepatic vein antegrade diastolic velocity (D wave)

Centimeters/seconds

0

70.1

37.59

14.98

35.65

26.35

Hepatic vein antegrade diastolic velocity time integral (D wave)

Centimeters

0

16

5.65

3.74

5.28

4.21

Hepatic vein antegrade systolic velocity (S wave)

Centimeters/seconds

17.6

121

47.06

23.20

40.95

27.6

Hepatic vein antegrade systolic velocity time integral (S wave)

Centimeters

1.57

33

8.00

6.33

6.35

6.5

Hepatic vein maximal forward velocity

Centimeters/seconds

1.9

13

5.75

2.33

5.45

2.78

Hepatic vein minimal forward velocity

Centimeters/seconds

1

10

4.05

2.08

3.75

2.63

Hepatic vein reversal flow velocity (A wave)

Centimeters/seconds

12.4

72

32.05

13.07

30

18.5

Hepatic vein reversal flow velocity time integral (A wave)

Centimeters

1.16

7.83

3.42

1.80

2.77

2.95

Hepatic vein V Wave velocity

Centimeters/seconds

0

34.7

10.76

11.81

9.6

20.05

Hepatic vein V Wave velocity time integral

Centimeters

0

5.5

0.93

1.38

0.5

1.54

2. Inferior vena cava parameters

Inferior vena cava systolic flow velocity

Centimeters/seconds

15.3

100

51.21

20.12

46.18

27.05

Inferior vena cava systolic flow velocity time integral

Centimeters

2.58

29.2

8.49

5.26

6.98

4.82

Inferior vena cava diastolic velocity

Centimeters/seconds

18.3

120

40.18

19.64

35

24.85

Inferior vena cava diastolic velocity time integral

Centimeters

1.45

45

7.17

7.43

5.47

3.90

Inferior vena cava reversal flow velocity

Centimeters/seconds

0

43.6

23.90

8.93

21.7

13.15

Inferior vena cava reversal flow velocity time integral

Centimeters

0

7.8

2.65

1.83

2.25

1.94

Inferior vena cava, maximal diameter

Millimeters

2

18

6.67

3.35

6.1

3.4

Inferior vena cava, minimal diameter

Millimeters

1.3

10.2

4.33

2.12

3.8

2.95

3. Right atrial parameters

Right atrial horizontal diameter

Millimeters

11.7

36.7

21.33

5.97

22.55

8.93

Right atrial vertical diameter

Millimeters

14

45.5

24.39

7.01

24.6

8.70

Right atrial area

Centimeters2

1.71

12.8

5.04

2.44

5.48

3.92

Right atrial volume

Centimeters3

1.53

31.9

9.60

6.70

9.12

9.22

Body-surface area-indexed right atrial volume

Centimeters3/m2

6.34

49.02

18.25

9.78

15.78

10.98

4. Superior vena cava parameters

Superior vena cava systolic velocity

Centimeters/seconds

49.5

130

78.43

19.82

76.15

26.17

Superior vena cava systolic velocity time integral

Centimeters

4.93

31.30

13.30

6.89

11.1

5.67

Superior vena cava diastolic velocity

Centimeters/seconds

22.4

96.50

56.75

20.14

55.09

28.80

Superior vena cava diastolic velocity time integral

Centimeters

3.18

25.11

8.66

5.55

7.3

5.73

Superior vena cava reversal velocity

Centimeters/seconds

8.5

62.5

26.17

12.06

23.95

14.73

Superior vena cava reversal velocity time integral

Centimeters

0.48

7.87

2.56

1.71

2.03

2.41

5. Tricuspid valve parameters

Tricuspid valve A velocity

Centimeters/seconds

26.1

86.9

52.42

19.71

49

41.85

Tricuspid valve A velocity time integral

Centimeters

1.59

9.8

4.61

2.25

4.29

2.47

Tricuspid valve A' wave

Centimeters/seconds

2.32

9.40

5.34

1.93

5.1

2.68

Tricuspid valve A wave, acceleration rate

Centimeters/second2

375

7958

1419.42

1203.67

1206

839

Tricuspid valve A wave, acceleration time

Milliseconds

8

92

43.61

19.62

42

27.35

Tricuspid valve A wave, deceleration rate

Centimeters/second2

143

1966

785.46

446.78

682

672

Tricuspid valve A wave, deceleration time

Milliseconds

21

187

71.75

31.66

63

4305

Tricuspid valve A wave, duration

Milliseconds

45

201

111.26

38.68

106

62.5

Tricuspid valve E velocity

Centimeters/seconds

42.2

143

77.91

24.72

72.9

34.55

Tricuspid valve E velocity time integral

Centimeters

3.37

16.9

7.44

2.98

6.9

4.09

Tricuspid valve E′ wave

Centimeters/seconds

2.92

28.7

9.62

5.06

8.3

4

Tricuspid valve E wave, acceleration rate

Centimeters/second2

727

3772

1640.15

730.43

1506

882

Tricuspid valve E wave, acceleration time

Milliseconds

11

111

52.17

18.99

50

23.5

Tricuspid valve E wave, deceleration rate

Centimeters/second2

191.18

2272

1007.90

251.87

934

520.75

Tricuspid valve E wave, deceleration time

Milliseconds

33

244

85.48

38.25

74

3

Tricuspid valve E wave, duration

Milliseconds

69

193

122.86

31.16

111

51

Tricuspid valve isovolumic relaxation time

Milliseconds

0

87

23.58

27.82

30

49

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