Current status of robot-assisted gastric surgery

Table 4 Pathologic outcomes

Ref.	Patients	Surgery	Sample	LN dissection (D1+αorβ/D2)	LN harvested (number)	Stage (Ia/Ib/II)
Anderson et al[27]1	Gastric adenocarcinoma only	Robot	7	-	24 (17-30)	2/2/2
Hyung et al[28]	Gastric adenocarcinoma only	Initial Robot	10	-	34 (16-50)	-
		Initial Lap.	10	-	29.2 (12-54)	-
		Recent Lap.	10	-	37.8 (26-51)	-
Patriti et al[29]	Gastric adenocarcinoma only	Robot	13	-	28.1 ± 8.3	3/3/6
Pugliese et al[30]	Gastric adenocarcinoma only	Robot	9	-	27.5 ± 5 (18-40)	-
		Lap.	46	-	31.5 ± 9.5 (20-45)	-
Song et al[31]	Gastric adenocarcinoma only	Initial Robot	20	16/4	35.3 ± 10.5	19/1/10
		Initial Lap.	20	10/10	31.5 ± 17.1	14/4/2
		Recent Lap.	20	12/8	42.7 ± 14.9	19/0/1
Song et al[32]	Gastric adenocarcinoma only	Robot	100	58/42	36.7 ± 13.3 (11-83)	74/16/4
Hur et al[33]	Gastric adenocarcinoma only	Robot	7	-	-	-
Pugliese et al[34]	Gastric adenocarcinoma only	Robot	16	-	25 ± 4.5 (18-40)	-
		Lap.	48	-	31 ± 8 (20-45)	-
Kim et al[35]	Gastric adenocarcinoma only	Robot	16	2/14	41.1 ± 10.9	-
		Lap.	11	3/8	37.4 ± 10.0	-
		Open	12	0/12	43.3 ± 10.4	-

¹Values in parentheses are interquartile range. ^aP < 0.05. Lap.: Laparoscopy; LN: Lymph node.