A three year follow up of self expanding metal stents in the endoscopic palliation of longterm survivors with XXXX .

@entity1 @entity691 @entity3123 @entity1087 @entity5 @entity1157 @entity201 @entity14 @entity432 @entity255
Effective palliation of @entity5 with conventional 10 or 12 French gauge straight @entity691 endoprostheses is limited by @entity432 , which typically occurs four to five months after insertion. Short term follow up studies of self expanding metal stents (Wallstent, Schneider, UK) in the treatment of @entity1 with @entity5 have shown that their use is associated with fewer episodes of @entity432 compared with plastic stents. There are few data, however, on the longterm patency and durability of metal stents in @entity5 . Between May 1989 and May 1992, metal stents were inserted in 28 @entity1 with @entity1157 strictures secondary to ampullary @entity5 (n = 10), @entity3123 (n = 10), @entity201 (n = 7), and porta hepatis nodes from @entity14 (n = 1). The follow up of these @entity1 until May 1993 is reported with a median follow up of 14.6 months. Twenty two of 28 (78.6%) @entity1 remained free of @entity1087 or @entity255 . The median period of stent patency was 8.2 months (range 1.0-32.5). Thirteen @entity1 represented with @entity1087 or @entity255 and endoscopic retrograde cholangiopancreatography showed evidence of @entity432 due to @entity5 ingrowth. Successful clearance of metal stents was achieved by balloon trawling, or insertion of a @entity691 stent. In conclusion, metal stents provide improved longterm palliation for @entity1 with @entity5 with fewer episodes of @entity432 compared with conventional stents.
