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Table 1 Demographic and CMR findings of PA/IVS and LDAVC cohorts

From: Cardiac magnetic resonance parameters associated with successful conversion from a single ventricular to a one-and-a-half or biventricular circulation in patients with a hypoplastic right ventricle

 

PA/IVS (n = 15)

LDAVC (n = 15)

All

1.5 V

2 V

All

1.5 V

2 V

N

15

10

5

15

1

14

Age at CMR (yrs)

1.32 (0.37–12.63)

3.27 (0.37–12.63)

1.07 (0.47–1.32)

1.04 (0.20–5.20)

0.40

1.13 (0.20–5.20)

Age at conversion surgery (yrs)

1.34 (0.38–13.10)

3.84 (0.38–13.10)

1.10 (0.48–1.43)

1.24 (0.22–5.20)

0.46

1.30 (0.22–5.20)

Female (n)

5

3

2

11

0

11

Genetic syndrome (n)

1

1

0

15

1

14

Body surface area (m2)

0.50 (0.30–1.35)

0.55 (0.30–1.35)

0.46 (0.33–0.50)

0.39 (0.25–0.68)

0.31

0.40 (0.25–0.68)

Circulation at CMR (n)

      

 Modified BTT/central shunt

3

1

2

3

1

2

 Pulmonary artery band

0

0

0

8

0

8

 Bidirectional Glenn

6

6

0

2

0

2

 Ductal stent

5

2

3

0

0

0

 Fontan

1

1

0

0

0

0

Dual source of pulmonary blood flow (n)

11

6

5

2

0

2

CMR parameters

      

 Heart rate (bpm)

106 (76–135)

104 (76–126)

125 (101–135)

110 (71–130)

130

106 (71–125)

 RV EDV (ml/m2)

34 (13–55)

24 (13–40)

46 (27–55)

41 (15–102)

15

43 (22–102)

 RV ESV (ml/m2)

13 (6–27)

13 (6–20)

13 (10–27)

14 (7–64)

7

15 (8–64)

 RV stroke volume (ml/m2)

19 (2–33)

6 (2–31)

30 (14–33)

27 (8–55)

8

28 (13–55)

 RV ejection fraction (%)

54 (10–78)

53 (10–78)

54 (43–74)

61(37–75)

56

62 (37–75)

 RV mass (g/m2)

10 (5–21)

7 (5–15)

12 (5–21)

15 (5–33)

5

16 (7–33)

 LV EDV (ml/m2)

85 (51–166)

85 (59–127)

75 (51–166)

97 (55–250)

95

98 (55–250)

 LV ESV (ml/m2)

36 (16–88)

36 (21–61)

28 (16–88)

36 (23–123)

42

35 (23–123)

 LV stroke volume (ml/m2)

49 (27–78)

50 (36–70)

48 (27–78)

60 (29–128)

52

62 (29–128)

 LV ejection fraction (%)

60 (44–73)

59 (44–71)

60 (47–73)

60 (51–70)

55

61 (51–70)

 RV:LV stroke volume ratio

0.41 (0.04–0.70)

0.17 (0.04–0.54)

0.51 (0.26–0.70)

0.45 (0.15–0.81)

0.15

0.50 (0.21–0.81)

 TV:MV inflow ratio

0.18 (0.004–0.51)

0.18 (0.004–0.27)

0.42 (0.12–0.51)

   

 TV anteroposterior diameter (cm)

1.35 (0.44–1.70)

0.98 (0.44–1.70)

1.40 (1.18–1.62)

   

 TV lateral diameter (cm)

1.23 (0.47–1.80)

1.10 (0.47–1.80)

1.60 (1.35–1.61)

   

 RV LGE present / LGE performed (n)

4/11

2/7

2/4

0/10

0/1

0/9

  1. Values are median (range) unless specified as counts (n). BTT Blalock-Taussig-Thomas, CMR cardiac magnetic resonance, EDV end-diastolic volume, ESV end-systolic volume, LDAVC left-dominant atrioventricular canal, LGE late gadolinium enhancement, LV left ventricle, MV mitral valve, PA/IVS pulmonary atresia with an intact ventricular septum, RV right ventricle, TV tricuspid valve
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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