Long-term survival outcome of laparoscopic liver resection for hepatocellular carcinoma

Table 3 Summary of comparative studies: Study design

Ref.	Year	Number of patients		Matching	Study population
		LLR	OLR		Demographic	Tumor	Cirrhosis	Procedure
Belli et al[5]	2009	54	125	No		< 5 cm, anterolaterally located
Tranchart et al[6]	2010	42	42	Yes
Lee et al[7]	2011	33	50	Yes				Minor resection
Ahn et al[8]	2014	51	51	Yes		Solitary
Memeo et al[9]	2014	45	45	Yes			Cirrhosis
Lee et al[10]	2015	43	86	Yes
Yoon et al[11]	2015	58	174	Yes		< 5 cm
Xiao et al[12]	2015	41	86	No		Posterosuperior
Sposito et al[13]	2016	43	43	Yes			Cirrhosis	Minor resection
Cheung et al[14]	2016	24	29	Yes				Left lateral sectionectomy
Ryu et al[15]	2018	40	30	No				Anatomical resection
Rhu et al[16]	2018	58	133	Yes				Right posterior sectionectomy
Guro et al[17]	2018	67	110	No				Major hepatectomy
El-Gendi et al[18]	2018	25	25	Randomized		< 5 cm	Child A
Inoue et al[19]	2018	61	175	Yes		< 5 cm		Parenchymal sparing hepatectomy
Kim et al[20]	2018	37	37	Yes				Left hepatectomy
Deng et al[21]	2018	157	157	Yes
Wu et al[22]	2019	86	86	Yes			Cirrhosis
Tsai et al[23]	2019	153	160	Yes
Di Sandro et al[24]	2018	75	75	Yes			Cirrhosis	Minor hepatectomy
Li et al[25]	2019	41	307	Yes				Mesohepatectomy
Kim et al[26]	2018	18	36	Yes		Central
Chen et al[27]	2019	38	38	Yes				Right hepatectomy
Untereiner et al[28]	2019	33	33	Yes
Yoon et al[29]	2020	217	434	Yes
Peng et al[30]	2019	33	33	Yes		Multiple
Yamamoto et al[31]	2020	58	197	Yes			Cirrhosis
Lee et al[32]	2021	58	110	Yes
Navarro et al[33]	2021	106	299	Yes				Major hepatectomy
Delvecchio et al[34]	2021	38	84	Yes	Elderly			Major hepatectomy
Ho et al[35]	2021	45	90	Yes

LLR: Laparoscopic liver resection; OLR: Open liver resection.