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Table 4 Clinical measures by thoracic duct tortuosity in patients with Fontan circulation (N = 169)

From: Magnetic resonance three-dimensional steady-state free precession imaging of the thoracic duct in patients with Fontan circulation and its relationship to outcomes

Variable

None/mild (n = 119)

Moderate /severe (n = 50)

p-value

n

Value

n

Value

CMR

 EDV/BSA, ml/m2

86

116 ± 33.9

35

132.3 ± 45.7

0.06

 ESV/BSA, ml/m2

84

57.3 ± 26.0

32

70.0 ± 29.9

0.03

 Mass/BSA, g/m2

77

64.5 ± 22.7

28

75.6 ± 37.0

0.15

 EF, %

84

52.4 ± 8.6

32

49.2 ± 8.4

0.09

 APC, %

20

16.8 ± 9.6

8

21.0 ± 9.5

0.31

 Moderate or worse AVVR (echo)

85

9 (11%)

39

7 (18%)

0.26

Cath

 Mean Fontan pressure, mmHg

27

15.0 ± 3.0

18

16.5 ± 3.6

0.14

 PVR, WUm2

26

2.16 ± 0.77

17

1.72 ± 0.83

0.09

 Max EDP, mmHg

26

8.96 ± 2.60

17

10.53 ± 2.65

0.06

CPET

 Peak RER

34

1.20 ± 0.09

11

1.18 ± 0.09

0.42

 Peak VO2, mL × kg−1 × min−1

34

24.1 ± 7.2

11

20.8 ± 7.2

0.19

 % predicted VO2 max

34

62.4 ± 14.0

11

58.6 ± 16.0

0.46

 % predicted peak O2 pulse

34

76.5 ± 20.9

11

72.0 ± 22.1

0.54

 % predicted peak work rate

33

71.5 ± 17.8

11

65.2 ± 23.3

0.35

 Relative VO2 at VAT mL × kg−1 × min−1

34

14.3 ± 3.9

11

13.7 ± 4.5

0.69

 %VAT/Predicted peak VO2

34

37.3 ± 7.9

11

39.3 ± 12.6

0.63

 VE/VCO2 slope

34

35.4 ± 7.5

11

30.9 ± 7.4

0.09

LAB

 Creatinine, mg/dL

52

0.70 ± 0.20

35

0.61 ± 0.22

0.04

 Albumin, mg/dL

49

4.4 ± 0.6

33

4.4 ± 0.5

0.71

 Absolute Lymphocyte Count, K cells/µL

13

0.76 ± 0.36

9

1.80 ± 0.78

0.003

  1. Values are mean ± standard deviation or count (%). Bold indicates a p-value < 0.05. CMR: cardiovascular magnetic resonance. Cath: cardiac catheterization. CPET cardiopulmonary exercise testing, LAB laboratory values, FOV field of view, EDV end-diastolic volume, BSA body surface area, ESV end-systolic volume, EF ejection fraction, APC aortopulmonary collateral burden, AVVR atrioventricular valve regurgitation, echo echocardiography, PVR pulmonary vascular resistance, EDP end-diastolic pressure, RER respiratory exchange ratio, VO2 oxygen consumption, VAT ventilatory anaerobic threshold, VE ventilation