Operative mortality (n = 28)

30 days survivals (n = 937)

P value

n

%

n

%

Age (years, mean ± SD)

2.6 ± 5.2

2.1 ± 4.8

0.62

Year of surgery

1992-2000

10

3.2

305

96.8

0.052

2001-2012

18

2.8

632

97

Prior palliative surgery

NO

28

2.9

920

97.2

0.5

YES

0

0

17

100

Long term mortality (n = 38)

Long term survivals (n = 927)

P value

n

%

n

%

Year of surgery

1992-2000

13

4

302

96

0.06

2001-2012

25

3.8

625

96

Prior palliative surgery

NO

38

3.9

910

96

0.053

YES

0

0

17

100

Age (years, mean ± SD)

2.4 ± 5.3

2.3 ± 4.9

0.8