Table 1 Characteristics of patients undergoing surgery for hilar cholangiocarcinoma

Age (mean)

62.9 years

Male gender (%)

48 (48.0%)

AJCC stage I/II/III/IV

7/15/17/61

Bismuth classification I/II/IIIa/IIIb/IV

27/13/21/12/27

 R0 Resection

34

 R1 Resection

12

 R2 Resection

16

 Palliative biliodigestive anastomosis

31

 Exploration (without curative intent)

7

Overall complications (%)

52 (52.0%)

 Pneumonia

19

 Bile leak

18

 Pleural effusion

9

 Hemoperitoneum

3

 Wound infection

5

 Gastrointestinal bleeding

4

 Intra-abdominal abscess

4

 Bile duct infection

4

 Miscellaneous

4

 Liver failure

3

 Urinary tract infections

1

 Biliodigestive leakage

1

 Others (DIC, cerebral infarction)

2

In-hospital mortality (%)

10 (10.0%)