Comparative analysis of conventional laparoscopic surgery and single-incision laparoscopic surgery in gastric cancer treatment: Outcomes and prognosis

Table 1 Comparison of perioperative indicators between the two groups, mean ± SD

Index	SILS + 1 group (n = 56)	CLS group (n = 37)	t value	P value
Time of operation (minute)	205.18 ± 19.35	203.59 ± 19.20	0.389	0.698
Peroperative bleeding (mL)	76.53 ± 8.12	108.67 ± 12.34	15.164	< 0.001
Total length of incision (cm)	5.29 ± 1.01	9.45 ± 2.34	11.771	< 0.001
Number of lymph nodes removed (n)	25.31 ± 3.75	26.08 ± 3.51	0.994	0.323
Hospital stays (day)	7.88 ± 1.60	9.84 ± 1.73	5.598	< 0.001
The first postoperative exhaust time (day)	1.94 ± 0.43	3.23 ± 0.88	9.417	< 0.001
The time of first ambulation (day)	2.76 ± 0.58	4.10 ± 0.97	8.337	< 0.001
Drainage tube removal time (day)	5.69 ± 1.27	7.12 ± 1.56	4.849	< 0.001

SILS + 1: Single-incision laparoscopic surgery plus one port; CLS: Conventional laparoscopic surgery.

Table 2 Comparison of pain degree between the two groups, mean ± SD

Group	First day after surgery	Second days after surgery	Third days after surgery
SILS + 1 group (n = 56)	2.61 ± 0.55	1.79± 0.48	1.03 ± 0.22
CLS group (n = 37)	3.42 ± 0.98	2.31 ± 0.56	1.97 ± 0.43
Ftime/P	153.003/< 0.001
Fcomparison among groups/P	112.865/< 0.001
Finteraction/P	5.368/0.024

SILS + 1: Single-incision laparoscopic surgery plus one port; CLS: Conventional laparoscopic surgery.

Table 3 Comparison of stress responses between the two groups, mean ± SD

Group	CRP (mg/L)		WBC (× 109/L)
	Preoperative	Postoperative day 1	Preoperative	Postoperative day 1
SILS + 1 group (n = 56)	4.52 ± 1.23	6.41 ± 1.63a	5.16 ± 1.29	6.34 ± 1.50a
CLS group (n = 37)	4.69 ± 1.30	7.82 ± 1.88a	5.24 ± 1.37	7.09 ± 1.61a
t value	0.638	3.917	0.286	2.292
P value	0.525	<0.001	0.776	0.024

^aP < 0.05.

CRP: C-reactive protein; WBC: White blood cell; SILS + 1: Single-incision laparoscopic surgery plus one port; CLS: Conventional laparoscopic surgery.

Table 4 Comparison of complications between the two groups, n (%)

Group	Anastomotic bleeding	Intraperitoneal hemorrhage	Pulmonary infection	Stomal leak	Hypercapnia	Total complication rate
SILS + 1 group (n = 56)	1 (1.79)	0 (0)	1 (1.79)	3 (5.36)	0 (0)	5 (8.93)
CLS group (n = 37)	1 (2.70)	2 (5.41)	1 (2.70)	5 (13.51)	1 (2.70)	10 (27.03)
χ2 value						5.395
P value						0.020

SILS + 1: Single-incision laparoscopic surgery plus one port; CLS: Conventional laparoscopic surgery.