Outcomes of colonic stent as a bridge to surgery vs emergency surgery for acute obstructive left-sided colon cancer

Table 1 Baseline characteristics of patients in the two groups

Characteristic	BTS group (n = 40)	ER group (n = 56)	P value
Age, years	57 (38-79)	71 (31-88)	0.41
BMI, kg/m2	21.8 ± 3.21	22.4 ± 4.34	0.23
Sex, male/female	23/17	29/27	0.68
ASA-PS score			0.44
I/II	30	38
III	10	18
Tumor site			0.96
Splenic flexure	7	8
Descending colon	12	19
Sigmoid colon	13	17
Recto-sigmoid	8	12
Preoperative CEA			0.58
Normal	11	22
Elevated	29	34
Preoperative TNM stage			0.59
II/III	25	32
IVa	15	24

BTS: Bridge to surgery; ER: Emergency resection; BMI: Body mass index; ASA-PS: American Society of Anesthesiologists physical status; CEA: Carcinoembryonic antigen; TNM: Tumor-node-metastasis.

Table 2 Outcomes of self-expanding metal stent placement, n (%)

Characteristic (n = 40)	P value
Technical success	40 (100)
Clinical success	39 (97.5)
Stent-related complications	0
Migration	0
Re-obstruction	1 (0.25)
Perforation	0
Median interval from stenting to surgery, days	15.5 (7-30)

Table 3 Surgical characteristics and postoperative outcomes in the two groups, n (%)

	BTS group (n = 40)	ER group (n = 56)	P value
Surgical procedure			0.005
Laparoscopy	36	32
Open	4	24
Operation time, minutes	257.2 ± 71.3	220.6 ± 65.9	0.14
Blood loss, mL	212.4 ± 71.2	157.4 ± 45.8	0.32
Postoperative hospital stay, days	7.4 ± 3.5	8.6 ± 3.1	0.57
The rate of stoma creation	3 (7.5)	27 (48.2)	< 0.0001
Major postoperative complications	6 (15)	19 (33.9)	0.04
Leakage	1	3	0.64
Wound infection	3	11	0.09
Ileus	2	4	1.00
Bleeding	0	1	1.00
Postoperative TNM stage			0.71
II/III	32	43
IVa	8	13
Adjuvant chemotherapy	34 (85.0)	45 (80.4)	0.56

BTS: Bridge to surgery; ER: Emergency resection; TNM: Tumor-node-metastasis.