Table 4 The Risk Factors of recurrent hepaticojejunostomy anastomotic stricture after endoscopic balloon dilatation

Patient’s factors

Sex

male

25

11

14

2.08

(0.92–4.75)

0.076

2.00

(0.86–4.77)

0.108

female

17

13

4

Age (years)

≧65

30

18

12

0.65

(0.24–1.57)

0.356

< 65

12

6

6

Preoperative factors

BMI

≧25

23

13

10

1.39

(0.61–3.13)

0.427

< 25

19

11

8

Diameter of common bile duct (mm)

≧7

27

12

15

1.81

(0.80–4.11)

0.150

1.62

(0.67–3.90)

0.276

< 7

15

12

3

CRP (mg/dl)

≧1.00

15

9

6

0.96

(0.42–2.29)

0.919

< 1.00

27

15

12

Pre-endoscopic treatment factors

Intrahepatic bile duct stones

(+)

9

3

6

1.91

(0.65–8.12)

0.260

(−)

33

21

12

Cholangitis

(+)

24

14

10

1.23

(0.52–2.81)

0.623

(−)

18

10

8

Serum albumin level (normal ≧3.5 mg/dl)

≧3.5

13

6

7

1.06

(0.44–2.96)

0.896

< 3.5

29

18

11

Earlier stricture after operation (< 1 year)

(+)

20

15

5

2.32

(1.03–5.56)

0.043

1.72

(0.72–4.31)

0.226

(−)

22

9

13

Biliary anastomotic leakage after operation

(+)

1

1

0

9.74

(0.50–65.9)

0.107

13.2

(0.62–107)

0.084

(−)

41

23

18

Pancreatic fistulae after operation

(+)

20

10

10

0.74

(0.32–1.66)

0.469

(−)

22

14

8

Factors during endoscopic treatment

Remaining balloon waste during inflation

(+)

4

3

1

0.49

(0.17–2.11)

0.301

(−)

38

21

17

Endoscopic biliary stone extraction

(+)

11

4

7

1.82

(0.68–6.30)

0.246

(−)

31

20

11