Role of minimally invasive surgery for rectal cancer

Table 5 Selected laparoscopic vs robotic rectal cancer surgery studies

Ref.	Yr	Trial	Surgery	n	OR time (min)	EBL (mL)	CVR (%)	LOS (d)	Comp (%)	Mort (%)	DRM+ (%)	CRM+ (%)	LN	C-TME (%)	DFS (%)	OS (%)	LRR (%)
Patriti et al[36]	2009	SC RR	Lap	37	208	127	20	10	32			0	11
			Robot	29	202	137	0	12	26			0	10
Cho et al[85]	2015	SC PSM	Lap	278	272	147	1	10	23		1	4.7	16		79	93	3.9
			Robot	278	361	179	1	10	25		0	5	15		81	92	5.9
Jayne et al[15]	2017	MC RCT	Lap	234	261		12	8	31	1		6.3	24	75
			Robot	237	298		8	8	33	1		5.1	23	75
Wang et al[59]	2017	SC RCT	Lap	66	207								16
			Robot	71	246								16
Kim et al[53]	2017	SC PSM	Lap	224	249		1	14	24	1		4.9	21		68	78
			Robot	224	285		0	13	32	1		4	20		72	90
Law et al[49]	2017	SC PR	Lap	171	225	100	4	6	22	1		8.2	12		80	74	5
			Robot	200	260	100	1	6	19	1		4.1	14		82	71	5
Rouanet et al[37]	2018	SC RR	Lap	200	232	100	10	11	24			11	19	90		88
			Robot	200	243	200	2	10	25			8	15	85		84
Sammour et al[44]	2018	SC O	Robot	276	100		2	4	34			2.5	22	76	82	87	2.4
Chang et al[86]	2019	SC O	Robot	1145	166	73	6	6	16	1		1.3	17	90			2.3

CVR: Conversion rate, Comp: Complications, Mort: Mortality; CRM/DRM: Circumferential/distal resection margin; MC: Multicenter; RCT: Randomized controlled trial; SC: Single center; PR: Prospective review; RR: Retrospective review; PSM: Propensity score matched; O: Observational study; OS: Overall survival; DFS: Disease-free survival; LRR: Local recurrence rates.