Table 4.

Reported series of surgical resection for gastric cancer liver metastases including more than 20 patients

Author	Year	Institution	n	Survival rate (%)			MST	Favorable prognostic factors	Period
				1 year	3 years	5 years			from	to
Ochiai et al. [25]	1994	National Cancer Center Hospital, Japan	21			0.2	18	Absence of serosal invasion of primary tumor (T ≤ 3) Absence of venous invasion of primary tumor	1962	1991
Miyazaki et al. [26]	1997	Chiba Univ., Japan	21					Solitary, surgical margin ≥ 10 mm
Ambiru [27]	2001	Chiba Univ., Japan	40			18	12	Metachronous	1975	1999
Okano et al. [11]	2002	Kagawa Med. Univ., Japan	21	77	34	34		Solitary, metachronous, presence of a pseudocapsule Well-differentiated adenocarcinoma
Sakamoto et al. [3]	2003	Cancer Institute Hospital, Japan	22	73	38	38	21.4	Solitary	1985	2001
Shirabe et al. [28]	2003	Kyusyu Univ., Japan	36	64	43	26		Solitary, absence of venous invasion of primary tumor
Koga et al. [12]	2007	Cancer Institute Hospital, Japan	42	76	48	42	34	Absence of serosal invasion of primary tumor (T ≤ 3), solitary	1985	2005
Sakamoto et al. [13]	2007	National Cancer Center Hospital, Japan	37			11	31	Unilobar, size of largest hepatic tumor ≤ 4 cm	1990	2005
Thelen et al. [29]	2008	Campus Virchow-Klinikum, Charité Univ., Germany	24	38	16	10	9	R0 resection	1988	2004
Cheon et al. [14]	2008	Yonsei Univ., Korea	41	75.3	31.7	20.8	17.9	Solitary	1995	2005
Takemura et al. [30]	2012	Cancer Institute Hospital, Japan	64	84	50	37	34.0	Serosal invasion of primary tumor (T ≤ 3) Size of largest hepatic tumor < 5.0 cm	1993	2011
Schildberg et al. [31]	2012	Univ. of Erlangen/Nürnberg, Germany	31			13		Metachronous, solitary, R0 resection	1972	2008
Qiu et al. [15]	2013	Sun Yat-Sen Univ., China	25	96.0	70.4	29.4	38.0	Solitary	1998	2009
Kinoshita et al. [32]	2015	Multicenter in Japan	256	77.3	41.9	31.1	31.1	Absence of serosal invasion of primary tumor (T ≤ 3), number of liver metastases < 3, size of largest hepatic tumor < 5.0 cm	1990	2010
Oki et al. [33]	2015	Multicenter in Japan	94		51.4	42.3	40.8	Solitary, low-grade lymph node metastasis (N0 or N1)	2000	2010
Oguro et al. [34]	2016	Juntendo Univ., Japan	26	71.3	41.8	13.9	20.1	Histology (well or mod), metachronous	2002	2012
Tatsubayashi et al. [35]	2017	Shizuoka Cancer Center Hospital, Japan	28			32	49	N/A	2004	2014
Present study			20	80.0	555	31.7	42	Solitary, age > 70 years, elevated CA19-9	2006	2016

MST median survival time in months, Well well-differentiated tubular adenocarcinoma, Mod moderately differentiated tubular adenocarcinoma