Table 3 Operative findings

Operation time (min)

 Mean

129±34

108±48

0.084

 Range

63–190

50–375

Amount of bleeding (mL)

 Mean

146.7±185.2

79.7±236.4

0.247

 Range

0–675

0–1970

Success rate of

<0.001

intraoperative cholangiography

 Possible

9

145

 Not possible

9

11

Site of proximal bile duct stump

<0.001

 Cystic duct

11

148

 Neck of gallbladder

7

8

Methodology of treatment

for bile duct stump

 Clip

6

131

<0.001

 Endoloop

1

2

 Ligation

4

7

 Suture

3

6

 Elastic yarn (for transcystic drainage)

2

10

 None

2

0

Conversion rate (%)

6/17(35.3)

7/146(4.8)

<0.001