Multimodality treatment in hepatocellular carcinoma patients with tumor thrombi in portal vein

Table 4 Curative effects and factors influencing the prognosis of patients after removal of HCC with PVTT

	Patients	1-year (%)	3-year (%)	5-year (%)	P
Removal of PVTT	103	61.7	32.3	22.4
Tumor diameter
< 10 cm	53	64.2	41.5	27.0	0.014a1
≥ 10 cm	50	59.7	25.2	19.3
PVTT in main trunk
-	82	66.3	36.9	26.1	0.027a2
+	21	42.9	14.3	8.6
Encapsulation
Well	21	75.6	30.9	8.6	0.928
Poor	82	58.4	32.9	26.7
Chemotherapy or chemoembolization after operation
No	74	53.9	26.9	16.6	0.012a3
Yes	29	79.3	38.9	26.8
Tumor number
Single	64	59.4	27.7	18.7	0.561
≥ 2	39	65.4	38.7	27.7

^a1P < 0.05 vs≥ 10 cm group;

^a2P < 0.05 vs PVTT in main trunk (+) group;

^a3P < 0.05 vs chemotherapy or chemoembolization after operation (yes) group.