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

Table 4 Univariate analysis of factors predictive of death

	All patients (n = 54)	Operative death		P value
		Yes (n = 9)	No (n = 45)
Age (yr)	49.7 (39-72)	53(45-72)	49 (39-67)	0.249
Sex ratio (M:F)	34:20	6:3	28:17	0.801
Preoperative chemotherapy	4	1	3	1.000
Preoperative PVE	9	2	7	1.000
Tumor type
Colorectal metastases	8	2	6	0.864
Hepatocellular carcinoma	11	2	9	1.000
Cholangiocarcinoma	26	4	22	1.000
Alveolar echinococcosis	9	1	8	1.000
Preoperative TB > 34 μmol/L	6	1	5	1.000
ICG-R15 over 10%	9	3	6	0.327
Child-Pugh B	6	4	2	0.004
No. of segments resected	4.7 (3-6)	5.1 (4-6)	4.6 (4-6)	0.189
Classifications				0.157
I1H1	9	0	9	0.328
I2H1	23	4	19	1.000
I1H2	5	0	5	0.576
I2H2	12	5	7	0.028
I3H1	5	0	5	0.576
IVC replacement
Yes (I2 + 2 cases in I3)	37	9	28	0.044
No (I1 + 3 cases in I3)	17	0	17
Hepatic vein reconstruction
Yes (H2)	17	4	13	0.600
No (H1)	37	5	32
Duration of ischemia (min)	68.7 (0-112)	87.7 (62-112)	64.9 (0-106)	< 0.001
Operative blood loss (mL)	721.5 (310-1250)	769.0 (550-1250)	712.3 (310-780)	0.389
Blood transfused amount (mL)	174.1 (0-950)	219.4 (0-950)	165.8 (0-850)	0.501
Duration of operation (min)	554.8 (210-1150)	709.6 (310-1150)	523.7 (210-860)	< 0.001
R0 resection	49	7	42	0.401
Tumor size	8.7 (2.9-16.1)	9.5 (8.8-16.1)	8.6 (2.9-15.4)	0.062

Data are shown as median (range) or n. PVE: Portal vein embolization; TB: Total bilirubin; ICG-R15: Indocyanine green retention rate at 15 min; IVC: Inferior vena cava.