Meta-analysis of laparoscopic vs open liver resection for hepatocellular carcinoma

Table 2 Characteristics of patients and surgical details

Study	Group	Cirrhosisn (%)	Tumor size (cm)	Type of hepatectomy
Shimada et al[27]	LLR	13 (76.4)	2.6 ± 0.9	a = 7, b = 10
	OLR	28 (73.6)	2.5 ± 1.0	NA
Laurent et al[28]	LLR	NA	3.35 ± 0.89	a = 3, b = 7, c = 3
	OLR	NA	3.43 ± 1.05	a = 4, b = 7, c = 3
Kaneko et al[29]	LLR	13 (43.3)	3.0 ± 0.8	a = 10, b = 20
	OLR	NA	3.1 ± 0.9	a = 8 ,b = 20
Belli et al[30]	LLR	23 (100)	3.1 ± 0.7	a = 5, b = 3, c = 15
	OLR	23 (100)	3.24 ± 0.70	a = 6, b = 5, c = 12
Endo et al[31]	LLR	6 (60)	3.0 ± 1.5	NA
	OLR	9 (81.8)	4.1 ± 0.8	NA
Lai et al[32]	LLR	23 (92)	2.5 (1-7)1	a = 6, b = 8, c = 10, d = 1
	OLR	31 (93.9)	2.6 (1-8)1	a = 2, b = 18, c = 13
Sarpel et al[11]	LLR	9 (45)	4.3 ± 2.1	NA
	OLR	27 (48.2)	4.3 ± 2.2	NA
Aldrighetti et al[33]	LLR	9 (56.3)	4 ± 2.2	a = 5, b = 2, c = 9
	OLR	9 (56.3)	4.6 ± 2.5	a = 5, b = 2, c = 9
Tranchart et al[10]	LLR	31 (73.8)	3.58 ± 1.75	a = 9, b = 15, c = 10, d = 3, e = 2, f = 3
	OLR	34 (80.9)	3.68 ± 2.09	a = 7, b = 13, c = 10, d = 3, e = 2, f = 7
Nguyen et al[34]	LLR	44 (65)	3.0	a = 6, b = 5, e = 6
	OLR	23 (35)	4.5	a = 6, b = 8, e = 6
Hu et al[16]	LLR	25 (83.3)	6.7 ± 3.1	NA
	OLR	NA	8.7 ± 2.3	a = 10, b = 20
Ker et al[19]	LLR	NA	2.5 ± 1.2	a = 7, c = 97, e = 4, g = 8
	OLR	NA	5.4 ± 3.5	NA
Kim et al[20]	LLR	NA	3.15 (1-8)1	a = 4, b = 4, c = 13, d = 4, e = 1
	OLR	NA	3.6 (1-19)1	a = 3, b = 10, c = 9, d = 5, e = 2
Lee et al[17]	LLR	28 (84.8)	2.5 (1.5-9)1	a = 18, h = 15
	OLR	32 (64)	2.9 (1.2-9)1	a = 10, h = 40
Truant et al[18]	LLR	NA	2.9 ± 1.2	a = 22, b or f = 14
	OLR	NA	3.1 ± 1.2	a = 26, b or f = 27

¹Median and (range). LLR: Laparoscopic liver resection; OLR: Open liver resection; NA: Not available; a: Left lateral segmentectomy; b: Segmentectomy; c: Subsegmentectomy; d: Right hepatectomy; e: Left hepatectomy; f: Bisegmentectomy; g: Right anterior sectorectomy; h: Nonanatomical resection.