Usefulness of biodegradable stents constructed of poly-l-lactic acid monofilaments in patients with benign esophageal stenosis

Table 1 Cases of benign esophageal stenosis

No	Initial	Age	Sex	Cause of esopahgeal stenosis	Observedperiod (yr)
1	KK	19	F	Drinking of caustic liquid	1.7
2	HT	15	M	Drinking of caustic liquid	1.0
3	OM	64	M	Surgical resection of esophageal cancer	1.2
4	KG	67	M	Surgical resection of esophageal cancer	2.0
5	TH	61	M	Surgical resection of esophageal cancer	0.6
6	YT	51	M	Surgical resection of esophageal cancer	0.6
7	MT	62	M	Post ESD for esophageal cancer	1.2
8	NK	77	M	Post ESD for esophageal cancer	1.2
9	KM	77	M	Post ESD for esophageal cancer	1.0
10	IY	75	M	Post ESD for esophageal cancer	0.7
11	SN	65	M	Post ESD for esophageal cancer	0.6
12	NS	64	M	Post ESD for esophageal cancer	1.4
13	YT	61	M	Post ESD for esophageal cancer	0..6

ESD: endoscopic submucosal dissection.