Variable

GROUP K (n = 20)

GROUP E (n = 20)

GROUP S (n = 20)

P value

Age (months) (mean ± S.D.)

8.1 ± 7.07

10.4 ± 8.22

13.7 ± 8.08

0.08

Sex (M/F) (n)

16/4

16/4

11/9

0.13

Height (cm) (mean ± S.D.)

64.0 ± 14.28

67.7 ± 11.68

70.1 ± 9.45

0.28

Weight (kg) (mean ± S.D.)

5.1 ± 2.33

5.9 ± 2.44

6.6 ± 2.25

0.12

BSA (m²) (mean ± S.D.)

0.29 ± 0.096

0.32 ± 0.109

0.35 ± 0.082

0.13

Preoperative treatment:

Propranolol (n)

5

2

2

0.30

Furosemide (n)

14

16

19

0.21

Digoxin (n)

8

11

13

0.41

Antibiotics (n)

4

5

1

0.28