Robot-assisted surgery for gastric cancer

Table 2 Main operative outcomes in studies reporting use of robotic surgery for gastric cancer

Ref.	OP time (min)	Estimated blood loss (mL)	No. of harvested lymph nodes	Conversions
Patriti et al[21]	286	103	28.1	0
Lee et al[14]	253	135	46	0
D'Annibale et al[23]	267.5	30	28	0
Isogaki et al[24]	TG > DG 520 > 388	TG > DG 150 > 61.8	TG approximately equal DG 43 approximately equal 42	0
Kim et al[25]	234.7	46.4	42.4
Liu et al[26]	272.52	80.78	23.1	1.8
Park et al[27]	248.8	146.1	37.9	3.5
Tokunaga et al[28]	331.5	32.5	40	0
Anderson et al[29]	420	300	24	0
Song et al[30]	231.3	128.2	36.7	0
Hur et al[31]	205
Uyama et al[32]	361	51.8	44.3	0
Yu et al[33]	TG > DG 285 > 225	TG > DG 180 > 150	34.2	4.8
Jiang et al[34]	245	70	22.5
Hyung et al[18]	Initial L > R > Recent L 337 > 253 > 164	-	Recent L > R > Initial L 37.8 > 34 > 29.2	0
Song et al[19]	Initial L > R > Recent L 289.5 > 230 > 134 ss	R > Recent L 94.8 > 39.5	Recent L > R > Initial L 42.7 > 35.3 > 31.5	0
Pugliese et al[35]	R > L 344 > 235 ss	L > R 148 > 90 ss	L > R 31 > 25	L > R 3 > 2
Woo et al[17]	R > L 219.5 > 170.7 ss	L > R 147.9 > 91.6 ss	R > L 39 > 37.4	0 = 0
Eom et al[36]	R > L 229.1 > 189.4 ss	R > L 152.8 > 88.3	L > R 33.4 > 30.2
Park et al[37]	R > L 218 > 140 ss	R > L 75 > 60	R approximately equal L 34 approximately equal 35	0
Yoon et al[38]	R > L 305.8 > 210.2 ss		R > L 42.8 > 39.4
Kang et al[39]	R > L 202 > 173 ss	L > R 173.4 > 93.2 ss
Hyun et al[40]	R > L 234.4 > 220	R approximately equal L 131.3 approximately equal 130.4	R approximately equal L 32.8 approximately equal 32.6	0 = 0
Noshiro et al[41]	R > L 439 > 315 ss	L > R 115 > 96	R > L 44 > 40	R = L 0 = 0
Han et al[42]	R > L 258 > 193 ss		L > R 36.5 > 33.4	0
Junfeng et al[43]	R > L 234.8 > 221.3 ss	L > R 137.6 > 118.3 ss	R > L 34.6 > 32.7 ss
Kim et al[44]	R > L 206.4 > 167.1 ss	L > R 134.9 > 59.8 ss	R approximately equal L 37.3 approximately equal 36.8	R = L 0 = 0
Kim et al[45]	R > L > O 259.2 > 203.9 > 126.7 ss	O > L > R 78.8 > 44.7 > 30.3 ss	O > R > L 43.3 > 41.1 > 37.4	0 = 0
Huang et al[46]	R > L > O 430 > 350 > 320	O > L > R 400 > 100 > 50 ss	O > R > L 34 > 32 > 26
Kim et al[47]	R > L > O 226 > 176 > 158 ss	O > L > R 182 > 112 > 85	O > R > L 40.5 > 40.2 > 37.6 ss
Pernazza et al[48]	R > O 293.8 > 224.6		R 34.2
Caruso et al[49]	R > O 290 > 222	O > R 386.1 > 197.6	O > R 31.7 > 28
Procopiuc et al[50]	R > O 320.83 > 243.36 ss	O > R 564.62 > 208.26 ss	O > R 25 > 22	0

R: Robotic surgery; L: Laparoscopic surgery; O: Open surgery; TG: Total gastrectomy; DG: Distal gastrectomy; ss: Statistically significant.