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Table 2 ECHO, CMR and CC data and comparison between the two groups

From: The role of cardiovascular magnetic resonance in candidates for Fontan operation: Proposal of a new Algorithm

  

All

(44 pts)

Group 1

(18 pts)

Group 2

(26 pts)

P

Echo

AV valve regurgitation:

    
 

- Absent/trivial

20

10

10

 
 

- Mild/Moderate

18

8

10

 
 

- Severe

6

0

6

 
 

ASD:

    
 

- Large

37

13

24

 
 

- Restrictive/absent

4

4

0

 
 

- Not visualized

3

1

2

 
 

Ventricular function:

    
 

- Normal

41

18

23

 
 

- Mild/moderate dysfunction

2

0

2

 
 

- Severe dysfunction

1

0

1

 
 

Systemic obstruction

5

0

5

 
 

Right pulmonary artery

    
 

- Not visualized

18

5

13

 
 

- Stenosis/hypoplasia

3

1

2

 
 

Left pulmonary artery

    
 

- Not visualized

29

7

22

 
 

- Stenosis/hypoplasia

2

1

1

 
 

Superior vena cava

    
 

- Not visualized

7

1

6

 

CMR

End ventricular vol. (ml/m2)

106 ± 28

97 ± 23

112 ± 30

0.1

 

Ventricular EF (%)

61 ± 9.3

64.5 ± 8.5

58 ± 8.9

0.003

 

RPA diameter (mm)

12 (6-25)

13 (8-24)

11 (8-21)

0.25

 

LPA diameter (mm)

10.5 (5-23)

11.5 (8-22)

9 (5-23)

0.1

 

McGoon index

1.98 (1.1-3.4)

2.1 (1.58-2.8)

1.9 (1.1-3.4)

0.8

 

Nakata index (mm2/m2)

237 (107-654)

236 (146-567)

241(107-654)

0.85

 

RPA flow (ml/min)

886 (195-3815)

788 (195-3815)

972 (325-2352)

0.9

 

RPVs flow (ml/min)*

1573 (900-3900)

1712 (1033-3900)

1403 (900-3100)

0.3

 

LPA flow (ml/min)

732 (100-1858)

765 (263-1858)

467 (100-1463)

0.1

 

LPV vein flow (ml/min)*

1185 (583-2500)

1250 (745-2360)

1120 (583-2500)

0.6

CC

Radiation DAP (Gycm2)

21.6 (5-270)

20 (5-40)

26.5 (9-270)

0.35

 

Minor Complications

4

1

3

0.8

 

RPA pressure (mmHg)

12.2 ± 2.98

11.2 ± 2.4

13.1 ± 3.4

0.04

 

LPA (mmHg)

11.7 ± 3

10.8 ± 2

12.4 ± 3.3

0.05

 

SVC pressure (mmHg)

12.8 ± 3

11.3 ± 2.5

13.5 ± 2.5

0.01

 

Atrial pressure (mmHg)

8.1 ± 2.2

7.7 ± 2.3

8.5 ± 2.2

0.2

 

End ventricular pressure (mmHg)

8.8 ± 2.3

8.5 ± 2.3

9.1 ± 2.3

0.3

 

PVR (UI/m2)

1.75 ± 0.6

1.55 ± 0.6

1.84 ± 0.46

0.08

 

McGoon index

1.95 ± 0.47

1.97 ± 0.4

1.92 ± 0.5

0.7

 

Nakata index (mm2/m2)

275 (77-1044)

325 (158-1044)

257(77-586)

0.3

 

Mayo clinic index

2.93 ± 0.94

2.75 ± 1,15

3 ± 0.8

0.9

  1. Continuous data are expressed as mean ± SD and as median and range depending upon the normality of the data. * Assessed in the last 21 patients
  2. Legend: ASD: atrial septal defect; DAP: Dose Area Product; Ed: End-diastolic; EF: ejection fraction ; LPA: left pulmonary artery; LPVs: left pulmonary veins; PVR: pulmonary vascular resistance; RPA: right pulmonary artery; RPVs: right pulmonary veins; SVC: superior vena cava
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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