Table 4.

Comparison of minor and major minimally invasive liver resections regarding perioperative outcomes in patients with colorectal liver metastasis

	Minor MILS n (% or SD)	Major MILS n (% or SD)	p value
Total	17 (68.0)	8 (32.0)
Operating timea (min)	223.2 (103.8)	363.6 (132.6)	0.008
LOS (days)	7.6 (3.0)	11.5 (3.9)	0.007
MBL (ml)	274.1 (259.5)	762.5 (513.2)	0.013
Overall morbidity	3 (17.6)	2 (25.0)	1.000
Liver surgery related morbidity	0 (0.0)	1 (12.5)	0.320
R status
R0	16 (94.1)	6 (75.0)	0.231
R1	1 (5.9)	2 (25.0)

MBL measured blood loss, LOS length of postoperative stay, MILS minimally invasive liver surgery, SD standard deviation

^aThe operating time in the robotic group is excluding the docking time