Comparison of outcomes of laparoscopic-assisted and total laparoscopic right hemicolectomy for right-sided colon cancer

Table 1 General clinical data and surgery-related indexes of the two groups (n = 109), mean ± SD

Basic information		Observation group (n = 50)	Control group (n = 59)	P value
Sex	Male	23	29	0.743
	Female	27	30
Age (years)	< 60 years	30	35	0.943
	≥ 60 years	20	24
TNM stage	I	5	7	0.744
	II	14	22
	III	31	30
Accompanying diseases	High blood pressure	13	18	0.603
	Diabetes	6	8	0.808
	Coronary heart disease	5	5	0.783
BMI (kg/m2)		24.69 ± 5.71	25.66 ± 6.06	0.393
Operation time (minutes)		171.1 ± 11.0	161.4 ± 9.1	0.000
Intraoperative blood volume (mL)		154.6 ± 21.9	179.8 ± 23.5	0.000
Postoperative hospital stays (days)		6.43 ± 0.63	7.59 ± 2.19	0.000
Postoperative drainage time (days)		5.18 ± 0.40	5.31 ± 0.78	0.296
Time to anal exhaust (days)		2.49 ± 0.33	2.68 ± 0.31	0.004
Length of resected specimens (cm)		37.8 ± 1.5	38.3 ± 1.6	0.083
Average number of lymph nodes dissected		25.8 ± 2.4	25.9 ± 1.6	0.691

TNM: Tumor-node-metastasis; BMI: Body mass index.

Table 2 Comparison of inflammatory factor levels between the two groups, mean ± SD

Group	TNF-α (ng/mL)			CRP (ng/mL)
	Preoperative	1 day after operation	3 days after operation	Preoperative	1 day after operation	3 days after operation
Observation group	8.04 ± 0.71	57.47 ± 2.19	12.14 ± 0.24	17.23 ± 1.36	160.40 ± 9.64	81.43 ± 4.26
Control group	10.25 ± 1.15	58.60 ± 1.91	30.21 ± 1.42	16.98 ± 4.36	165.18 ± 11.2	108.54 ± 3.24
P value	0.739	0.025	0.000	0.172	0.013	0.000

TNF-α: Tumor necrosis factor-α; CRP: C-reactive protein.

Table 3 Complications of patients with right-sided colon cancer in the two groups, n (%)

Group	Intestinal obstruction	Anastomotic leakage	Incision infection	Lung infection	Total
Observation group (n = 50)	2 (4.0)	2 (4.0)	2 (4.0)	6(12)	12 (24.0)
Control group (n = 59)	3 (5.0)	1 (1.7)	7 (11.9)	8(13.6)	19 (32.2)
P value	1.000	0.884	0.255	0.808	0.344

Table 4 Comparison of distant metastasis rate, recurrence rate, and mortality between the two groups, n (%)

Group	Distant metastasis incidence rate at 2 years	Recurrence rate at 2 years	Mortality at 2 years
Observation group	7 (14.0)	8 (16.0)	6 (12.0)
Control group	9 (15.3)	11 (18.6)	10 (16.9)
P value	0.854	0.717	0.467