Robotic resection of duodenal gastrointestinal stromal tumour: Preliminary experience from a single centre

Table 2 Comparison of patients in the open surgery group and robotic surgery group (n = 28)

	No. of patients		P value
	Open	Robotic
Total patients	13	15
Age			0.718
≥ 50 yr	8	8
< 50 yr	5	7
Sex			0.689
Male	8	11
Female	5	4
Tumor size			0.255
< 5 cm	5	10
≥ 5 cm	8	5
Surgical technique			0.700
Limited resection	7	10
PD	6	5
OT (min)			0.029
mean ± SD 1	207.7 ± 63.1	156.0 ± 55.4
EBL (mL)			0.01
mean ± SD 1	340.0 ± 401.8	62.3 ± 34.9
PHS (d)			0.294
mean ± SD 1	16 ± 9.4	15.7 ± 13.4
Mitotic count (/50 HPF)			1.000
≤ 5	12	14
> 5	1	1
Risk assessment			0.072
Low	6	13
Medium	4	1
High	3	1
POPC			1.000
Yes	7	7
No	6	8
Postoperative targeted therapy			1.000
Yes	4	5
No	9	10
Recurrence/metastasis			0.311
Yes	3	1
No	10	14

PD: Pancreatoduodenectomy; OT: Operation time; EBL: Estimated blood loss; PHS: Postoperative hospital stay; HPF: High-power fields; POPC: Postoperative complications.