Outcomes of colon self–expandable metal stents for malignant vs benign indications at a tertiary care center and review of literature

Table 1 Patients that underwent colonic stenting with self-expandable metal stent over the fourteen-year period

	Malignant	Benign	Pvalue
Number of cases (total n = 63)	55	8
Mean age	63.7	67.6	0.54
Gender (Male:Female)	27:36	2:6
Intrinsic vs Extrinsic	43 vs 12	7 vs 1
Procedure success	95%	100%	1.0
Complication rate	1.8%	25%	0.02
Perforation rate	0%	13%	0.14
Migration rate	1.8%	13%	0.14

Table 2 Baseline patient and tumor characteristics of malignant obstruction in cases for palliation

Patient	Age	Sex	Tumor location	Technical success	Clincial success	Complications or surgery	Suvival (days)
1	77	M	Sigmoid	Yes	Yes	None	14
2	71	M	Sigmoid	Yes	Yes	None	NA
3	54	F	Sigmoid	Yes	Yes	None	50
4	42	F	Sigmoid	Yes	Yes	Eventual diversion	NA
5	62	F	Splenic	Yes	Yes	None	NA
6	47	F	Rectum	Yes	Yes	None	33
7	43	M	Sigmoid	Yes	Yes	None	47
8	87	F	Sigmoid	Yes	Yes	None	NA
9	57	F	Sigmoid	Yes	Yes	None	85
10	67	F	Sigmoid	Yes	Yes	None	354
11	70	M	Splenic	Yes	Yes	None	84
12	62	M	Sigmoid	Yes	Yes	Eventual diversion	NA
13	75	F	Sigmoid	Yes	Yes	None	NA
14	54	M	Rectum	Yes	Yes	None	NA
15	42	F	Splenic	Yes	No	Improved w/XRT	38
16	54	F	Sigmoid	No	NA	NA	NA
17	46	M	Sigmoid	Yes	Yes	None	7
18	43	M	Sigmoid	Yes	Yes	Repeat stent 12 mo	689
19	61	F	Sigmoid	Yes	Yes	None	21
20	64	F	Splenic	Yes	Yes	None	76
21	62	F	Splenic	Yes	Yes	None	64
22	52	F	Sigmoid	Yes	Yes	None	271
23	87	M	Sigmoid	Yes	Yes	None	306
24	44	M	Sigmoid	Yes	Yes	None	50
25	61	F	Rectum	Yes	Yes	Repeat stent 6 mo	235
26	80	M	Ascending	Yes	Yes	None	326
27	66	M	Transverse	Yes	Yes	None	454
28	68	M	Transverse	Yes	Yes	None	345
29	76	M	Sigmoid	No	No	None	NA
30	76	M	Ascending	No	No	None	NA
31	62	F	Rectal	Yes	Yes	Repeat stent 4 mo	Open
32	64	M	Rectal	Yes	Yes	Repeat stent in 7 mo, stent migration after 7 mo-removed	420

M: Male; F: Female; NA: No application.

Table 3 Baseline patient and tumor characteristics of malignant obstruction in cases for bridging to surgery

Patient	Age	Sex	Tumor location	Technical success	Clincial success	Complications	Surgery type
1	86	M	Sigmoid	Yes	Yes	None	Open
2	52	F	Sigmoid	Yes	Yes	None	Laproscopic
3	50	F	Decending	Yes	Yes	None	Laproscopic
4	66	F	Sigmoid	Yes	Yes	None	Laproscopic
5	74	F	Sigmoid	Yes	Yes	None	Laproscopic
6	96	F	Sigmoid	Yes	Yes	None	Laproscopic
7	83	M	Sigmoid	Yes	Yes	None	Laproscopic
8	50	F	Transverse	Yes	Yes	None	Laproscopic
9	48	M	Sigmiod	Yes	Yes	None	Open
10	72	M	Sigmoid	Yes	Yes	None	Laprascopic
11	61	M	Sigmoid	Yes	Yes	None	Laprascopic
12	72	M	Rectum	Yes	Yes	None	Open
13	49	M	Sigmoid	Yes	Yes	None	Open
14	81	F	Sigmoid	Yes	Yes	None	Open
15	68	F	Rectal	Yes	Yes	None	Open
16	81	M	Transverse	Yes	Yes	None	Laprascopic
17	72	M	Transverse	Yes	Yes	None	Laprascopic
18	53	F	Trasnverse	Yes	Yes	None	Laprascopic
19	65	F	Sigmoid	Yes	Yes	None	Laprascopic
20	40	M	Sigmoid	Yes	Yes	None	Open
21	61	F	Sigmoid	Yes	Yes	None	Laproscopic
22	66	F	Decending	Yes	Yes	None	Open
23	86	M	Splenic	Yes	Yes	None	Laproscopic

M: Male; F: Female.

Table 4 Baseline patient and characteristics of benign obstruction

Patient	Age	Sex	Lesion	Location	Technical success	Clincial success	Complications
1	55	F	Fistula	Sigmoid	Yes	Yes	Migration
2	78	F	Extrinisic compression	Sigmoid	Yes	Yes	Perforation
3	76	F	Diverticular	Sigmoid	Yes	Yes	None
4	65	F	Fistula	Ileocolonic	Yes	Yes	None
5	56	F	Ischemic stricture	Rectum	Yes	Yes	None
6	58	F	Diverticular	Sigmoid	Yes	Yes	None
7	66	M	Diverticular	Sigmoid	Yes	Yes	None
8	86	F	Diverticular	Sigmoid	Yes	Yes	None

M: Male; F: Female.