Preoperative portal vein embolization for hepatocellular carcinoma: Consensus and controversy

Table 1 Clinical outcomes of portal vein embolization for hepatocellular carcinoma

Ref.	Year	Technique	No. of patients	Morbidity (%)	Mortality (%)	5-yr disease-free survival (%)	5-yr overall survival (%)
Azoulay et al[11]	2000	PVE	10	55	0	21	44
Tanaka et al[12]	2000	PVE	33	-	3	33	50
Wakabayashi et al[13]	2001	PVE	26	-	11.5	40	46
Sugawara et al[14]	2002	PVE	66	-	0	37.9	58.9
Aoki et al[15]	2004	TACE + PVE	24	24	0	47	56
Ogata et al[16]	2006	TACE + PVE	18	39	-	37	-
		PVE	18	56	-	19	-
Seo et al[17]	2007	PVE	32	19	0	37	72
Palavecino et al[18]	2009	PVE	21	24	0	56	72

PVE: Portal vein embolization; TACE: Transcatheter arterial chemoembolization.