Esophageal Stenting in the Setting of Malignancy

Table 2

Esophageal stents currently on the market in the USA, Europe, and Asia.

Stent	Manufacturer	Material	Covering	Length (cm)	Diameter shaft/flare (mm)		Antireflux valve	FDA approved
Alimaxx-ES	Alveolus	Nitinol	FC	7/10/2012	18,22		No	Yes
Choostent	MI Tech	Nitinol	FC	5∼20	18,20,22		Yes (valve variant)	Yes
Esophageal Z	Cook	Stainless steel	PC/FC	8/10/12/14	18/25		Yes (Dua variant)	Yes
Evolution	Cook	Nitinol	PC	8/10/12.5/15	18/23 (FC)		No	Yes
				(PC) 8/10/12 (FC)	20/25 (PC,FC)
FerX-Ella	Ella-CS	Stainless steel	FC	9/10.5/12/13.5 15/16.5/18/ 19.5 /21	20/36		Yes/No	No
Flamingo Wallstent	Boston Scientific	Stainless steel	PC	12/14	20/30		No	No
Gianturco Z	Cook	Stainless steel	PC	8/10/12/14	18/25		Yes	No
							No; shaft bars	No
Niti-S	Taewoong Medical	Nitinol	PC/FC	3/5/7/9/12	16/24		Yes (PTFE variant)	Yes
					18/26
					20/28
Polyflex	Boston Scientific	Polyester	FC	9/12/2015	16/20		No	Yes
					18/23
					21/28
Ultraflex NG	Boston Scientific	Nitinol	NC/PC	7/10/12/15	18,23		No	Yes
Wallflex	Boston Scientific	Nitinol	PC/FC	10/12/15	PC 18/23	FC 18/25	No	Yes
					23/28	23/28

NC, not covered; PC, partially covered; FC, fully covered; FDA, Food and Drug Administration.