Surgical management of liver diseases invading the hepatocaval confluence based on IH classification: The surgical guideline in our center

Table 2 Intra- and postoperative results

Variables	I1H1 (n = 9)	I2H1 (n = 23)	I1H2 (n = 5)	I2H2 (n = 12)	I3H1 (n = 5)
					IVC resection and replacement (n = 2)	Only IVC resection (n = 3)
RL:REL:RT:LEL:LT	3:2:2:1:1	4:6:8:2:3	0:1:2:2:0	2:4:3:2:1	1:0:1:0:0	1:2:0:0:0
Tumor size (cm)	7.2 (2.9-14.3)	8.7 (7.1-15.4)	9.2 (3.9-9.9)	9.6 (7.2-16.1)	9.4 (6.6-12.2)	8.3 (7.1-10.2)
Operative blood loss (mL)	460 (310-950)	740 (450-1250)	570 (450-1050)	1020 (550-1700)a	680 (550-810)	450 (350-560)
Need for blood transfusion	1	8	0	7	1	0
Transfusion volume (mL)	400	550 (200-950)	0	600 (300-850)c	400	0
Operation duration (min)	290 (210-420)	592 (480-800)	520 (250-860)	750 (310-1150)a	580 (490-670)	320 (240-440)
No. of patients using TVE	2	23	3	12	2	0
No. of patients using PM	5	17	2	8	2	2
Duration of TVE (min)	50 (40,60)	62 (46-90)	48 (35-68)	73 (37-89)a	49 (39-57)	0
Duration of PM (min)	25 (10-35)	36 (15-45)	22.5(20-25)	38 (10-50)	30 (15-15)	30 (15-15)
Reconstruction detail	IVCR: direct suture in 4, with a patch in 5; HVR: no	IVCR: replacement; HVR: no	IVCR: with a patch in 5; HVR: reimplant to ePTFE in 1, to residual IVC in 4	IVCR: replacement; HVR: with a patch in 3, reimplant to ePTFE in 5, to residual IVC in 4	IVCR: replacement; HVR: no	IVCR: no; HVR: no
Surgical technique
Anti-situm	0	0	0	2	1	0
Ex vivo	0	0	0	6	0	0
In situ perfusion	0	2	1	5	0	0
Postoperative liver function
Serum maximum AST (IU/L)	460 (220-870)	557 (240-1240)	490 (230-590)	630 (330-1350)	520 (370,670)	665 (265-768)
Serum maximum ALT (IU/L)	565 (345-1350)	695 (230-1510)	520 (280-1020)	710 (340-1405)	610 (410-810)	685 (210-830)
Serum maximum PT (s)	14.1 (12.2-16.3)	15.4 (13.3-16.9)	14.8 (12.8-15.9)	15.4 (13.4-17.5)	16.4 (15.5-17.3)	15.5 (13.7-16.7)
Serum maximum TB (mmol/L)	33.4 (28.5-44.7)	36.8 (29.4-56.9)	33.7 (31.2-47.7)	45.0 (34.1-55.6)	35.0 (27.0-43.0)	33.1 (28.0-56.1)
Hospital stay (d)	11 (7-17)	15 (9-24)	12 (8-22)	19 (13-28)	14 (11-17)	16 (13-19)

Data are shown as median (range) or n.

^aP < 0.05 vs each other type;

^cP < 0.05 vs each other type except for I2H1. RL: Right lobectomy; REL: Right extended lobectomy; RT: Right tri-segmentectomy; LEL: Left extended lobectomy; LT: Left tri-segmentectomy; TVE: Total vessel exclusion; PM: Pringle maneuver; IVCR: Inferior vena cava reconstruction; HVR: Hepatic vein reconstruction; ALT: Alanine transaminase; AST: Aspartate transaminase; PT: Prothrombin time; TB: Total bilirubin.