Do Self-Expanding Metal Stents as a Bridge to Surgery Benefit All Patients with Obstructive Left-Side Colorectal Cancers?

Table 1

Clinical characteristics of patients.

	Before propensity matching			After propensity matching
	SEMS	ES		SEMS	ES
Characteristics	()	()		()	()
Age, (%)			0.932			1.000
<60 y	16 (40.0)	18 (40.9)		15 (41.7)	15 (41.7)
≥60 y	24 (60.0)	26 (59.1)		21 (58.3)	21 (58.3)
Sex, (%)			0.770			0.804
Men	27 (67.5)	31 (70.5)		23 (63.9)	24 (66.7)
Women	13 (32.5)	13 (29.5)		13 (36.1)	12 (33.3)
ASA grade, (%)			0.434			0.772
<III	32 (80.0)	32 (72.7)		28 (77.8)	29 (80.6)
≥III	8 (20.0)	12 (27.3)		8 (22.2)	7 (19.4)
pT stage, (%)			0.421			0.810
T1-3	22 (55.0)	28 (63.6)		22 (61.1)	21 (58.3)
T4	18 (45.0)	16 (36.4)		14 (38.9)	15 (41.7)
pN stage, (%)			0.165			0.437
N0	9 (22.5)	16 (36.4)		9 (25.0)	12 (33.3)
N1-2	31 (77.5)	28 (63.6)		27 (75.0)	24 (66.7)
cM stage, (%)			0.226			1.000
M0	34 (85.0)	41 (93.2)		33 (91.7)	33 (91.7)
M1	6 (15.0)	3 (6.8)		3 (8.3)	3 (8.3)
pTNM stage			0.303			0.718
I	0 (0.0)	2 (4.5)		0 (0.0)	2 (5.6)
II	8 (20.0)	12 (27.3)		8 (22.2)	8 (22.2)
III	26 (65.0)	27 (61.4)		25 (69.4)	23 (63.9)
IV	6 (15.0)	3 (6.8)		3 (8.4)	3 (8.4)
Lymph nodes, counts			0.939			0.991
Location of tumor,			0.601			0.456
Splenic colon	5 (12.5)	10 (22.7)		5 (13.9)	10 (27.8)
Descending colon	9 (22.5)	10 (22.7)		9 (25.0)	9 (25.0)
Sigmoid colon	22 (55.0)	19 (43.2)		18 (50.0)	15 (41.7)
Rectum	4 (10.0)	5 (11.4)		4 (11.1)	2 (5.6)
Adjuvant chemotherapy,	20 (50.0)	28 (63.6)	0.207	18 (50.0)	23 (63.9)	0.234
Comorbidities			0.054			0.096
With	22 (55.0)	15 (34.1)		19 (52.8)	12 (33.3)
Without	18 (45.0)	29 (65.9)		17 (47.2)	24 (66.7)

SEMS: self-expanding metal stents; ES: emergency surgery. All were considered statistically significant.