Maturation of robotic liver resection during the last decade: A systematic review and meta-analysis

Table 1 Frequency of each type of liver resection in the studies published in 2016 or earlier

Ref.		Laparoscopic liver resection					Robotic liver resection
		Seg	LLS	LH	RH	EH	Seg	LLS	LH	RH	EH
Berber et al[17], 2010	Case	12	11				6	3
Ji et al[18], 2011	Case	9	7	3	1		1	4	6	2	1
Lai et al[19], 2011	Cohort	6	4				6	3
Lai et al[20], 2012	Cohort	9	8				12	17	2	1
Packiam et al[21], 2012	Case		18					11
Troisi et al[9], 2013	Case	149	39	16	17	2	38	2
Spampinato et al[22], 2014	Case			9	15	1			8	16	1
Tranchart et al[23], 2014	Case	22	5	1			22	5	1
Tsung et al[12], 2014	Case	72		21			36		21
Wu et al[24], 2014	Case	28	31	8	2		8	24	7	12	1
Yu et al[25], 2014	Case		6	11				10	3
Croner et al[26], 2016	Case	ND					ND
Kim et al[27], 2016	Case		31					12
Lai et al[28], 2016	Cohort	25	9		1		45	29	6	20	1
Lee et al[29], 2016	Case	34	30	2			17	39	10	4
Montalti et al[30], 2016	Case	72					36

EH: Extended hemi-hepatectomy; LH: Left hepatectomy; LLS: Left lateral segmentectomy; ND: Not properly described; RH: Right hepatectomy; Seg: Segmentectomy.