Table 1.

Five-year Overall Survival of patients with EHD undergoing hepatic resection for CLM.

Study	Year	# of Patients	Patients with EHD(% of total)	5 year Overall Survival of patients with EHD(%)
Scheele et al [11].	1995	469	47(10)	26
Fong et al [13].	1999	1001	43(4)	18
Minagawa et al [97].	2000	235	17(7)	21
Elias et al [18].	2003	376	111(29)	20
Elias et al [19].	2005	308	84(27)	28
Carpizo et al [20].	2009	1369	127(9.3)	26

Six large studies in the past two decades that examined the significance of EHD and the overall 5-year survivals in patients with CLM that underwent hepatic resection.