Table 6 Comparison of intraoperative parameters between the LS and OS groups

Radical resection, n (%)

34 (85.0)

27 (96.4)

0.226

Hilar blockade, n (%)

18 (45.0)

7 (25.0)

0.127

Intraoperative blood loss, mL

350 (200.0–600.0)

550 (400.0–800.0)

0.062

Intraoperative blood transfusion, n (%)

 Plasma, mL

12 (30.0)

17 (60.7)

0.614

 Red cells, U

15 (37.5)

16 (57.1)

 Operation time, min

469 (422.5–520.25)

440 (342.5–510.0)

0.154

 Liver resection, n (%)

36 (90.0)

20 (71.4)

0.060

 No

4 (10.0)

8 (28.6)

0.041*

 Minor liver resection

3 (7.5)

5 (17.9)

 Major liver resection

33 (82.5)

15 (53.6)

 Left hemihepatectomy (+ segment I)

24 (60.0)

11 (39.3)

 Right hemihepatectomy (+ segment I)

9 (22.5)

3 (10.7)

 Segment I resection, n (%)

25 (62.5)

7 (25.0)

0.003*

 Left and right hepatic angioplasty, n (%)

16 (40.0)

10 (35.7)

0.720

 Roux-en-Y reconstruction, n (%)

30 (75.0)

23 (82.1)

0.563

 Conversion, n (%)

9 (22.5)

-

-

Surgical margin, n (%)

 R0

32 (80.0)

22 (78.6)

0.554

 R1

3 (7.50)

4 (14.3)

 R2

5 (12.5)

2 (7.1)

 Vascular invasion, n (%)

23 (57.5)

12 (42.86)

0.234

 Vascular reconstruction, n (%)

3 (7.5)

2 (7.14)

> 0.999

 Lymphadenectomy, n (%)

38 (95.0)

23 (82.14)

0.115

 Hilar plastic surgery, n (%)

8 (20.0)

8 (28.57)

0.562

 Choledochojejunostomy to place support tube, n (%)

5 (12.5)

4 (14.29)

> 0.999

 Biliary T-tube drainage, n (%)

3 (7.50)

4 (14.29)

0.435

 Tumor size (cm)

3.07 ± 1.53

3.05 ± 0.88

0.949

Liver condition, n (%)

 Hepatic atrophy (left or right)

3 (7.50)

2 (7.14)

> 0.999

 Cholestasis

25 (62.5)

15 (53.57)

0.462

 Cirrhosis

18 (45.0)

7 (25.0)

0.127

Gallbladder condition, n (%)

 Empty gallbladder

9 (22.5)

5 (17.86)

0.765

 Gallbladder swelling

9 (22.5)

14 (50.0)

0.018*

 Gallbladder invasion

4 (10.0)

1 (3.57)

0.642

Bismuth type, n (%)

 I

0

1 (3.6)

0.005*

 II

1 (2.50)

8 (28.6)

 IIIa

2 (5.0)

3 (10.7)

 IIIb

10 (25.0)

5 (17.9)

 IV

27 (67.5)

11 (39.3)