Lumen-apposing metal stents for benign gastrointestinal tract strictures: An international multicenter experience

Table 2 Demographics and stricture characteristics

	Proximal esophagus(n = 5)	Distal esophagus(n = 4)	Stomach(n = 6)	Duodenum(n =4)	Colon(n = 2)	Total(n = 21)
Age, mean (yr)	54	68.5	59	65.8	77	62.6
Gender
Male	3 (60.0)	3 (75.0)	2 (33.3)	2 (50.0)		10 (47.6)
Female	2 (40.0)	1 (25.0)	4 (66.7)	2 (50.0)	2 (100.0)	11 (52.4)
Etiology
Post-surgery/radiation	4 (80.0)	3 (75.0)	4 (66.7)	1 (25.0)	2 (100.0)	14 (65.2)
Peptic			1 (16.7)	2 (50.0)		3 (13.0)
Chronic pancreatitis				1 (25.0)		1 (4.3)
Caustic ingestion	1 (20.0)	1 (25.0)	1 (16.7)			3 (13.0)
Types of prior treatments
Balloon dilatation
1			1	1	1	3
2	4	2	2			8
3			1		1	2
> 3		1				1
Fully-covered stents	1	1		1		3
Prior migration	1	1		1		3
Stricturoplasty	1					1