Table 1 Clinical characteristics of the subjects

Sex (male/female)

11/12

20/15

n.s.

Age (y)

2.5 ± 1.6

2.3 ± 1.5

n.s.

Weight (kg)

13.8 ± 3.3

11.4 ± 4.1

0.0224

Height (cm)

91.1 ± 7.1

88.7 ± 8.1

n.s.

Body surface area (m²)

0.58 ± 0.07

0.53 ± 0.08

0.0177

Heart rate (bpm)

90 ± 12

92 ± 17

n.s.

QRS duration (msec)

87 ± 6

89 ± 13

n.s.

Systolic blood pressure (mmHg)

80 ± 7

77 ± 6

n.s.

Diastolic blood pressure (mmHg)

46 ± 6

45 ± 6

n.s.

LVEDD (mm)

25.8 ± 3.1

29.2 ± 4.4

0.0022

LVFS (%)

32.6 ± 5.9

38.7 ± 6.1

0.0004

LVEF (%)

63.4 ± 5.6

69.3 ± 6.2

0.0005

Qp/Qs

-

2.04 ± 0.92

-

RVSP (mmHg)

-

35.4 ± 13.0

-

RVEDP (mmHg)

-

7.6 ± 2.1

-

RVEF (%)

-

53.0 ± 9.1

-

SPAP (mmHg)

-

29.0 ± 9.9

-

DPAP (mmHg)

-

11.5 ± 3.3

-

MPAP (mmHg)

-

19.7 ± 6.2

-

PAPP (mmHg)

-

17.5 ± 8.0

-

PVRi (Wood U∙m²)

-

1.44 ± 0.8

-

PASV (ml/m²)

-

62.7 ± 20.7

-

Transmitral flow (m/sec)

E

1.05 ± 0.17

1.11 ± 0.19

n.s.

A

0.41 ± 0.07

0.51 ± 0.17

0.0099

Transtricuspid flow (m/sec)

E

0.64 ± 0.12

0.49 ± 0.18

0.0009

A

0.29 ± 0.09

0.31 ± 0.13

n.s.

Mitral annular motion (cm/sec)

s’

8.4 ± 1.6

9.5 ± 2.7

0.0292

e’

14.6 ± 2.8

15.7 ± 2.9

n.s.

a’

5.0 ± 2.3

6.1 ± 2.4

n.s.

Tricuspid annular motion (cm/sec)

s’

12.5 ± 2.2

13.6 ± 1.8

0.0418

e’

14.2 ± 2.3

12.7 ± 3.2

n.s.

a’

6.6 ± 2.3

6.5 ± 2.1

n.s.