title: "Tannenbaum" Teflon stents versus traditional polyethylene stents for treatment of malignant biliary stricture.
abstract: BACKGROUND
  Premature stent clogging is the major limitation with plastic stents used in the treatment of malignant biliary structures. A pilot study suggested improved duration of patency of the Tannenbaum stent compared with polyethylene stents. The aim of this prospective, multicenter randomized trial was to compare the Tannenbaum Teflon stent with a conventional polyethylene endoprosthesis (Cotton-Leung biliary stent set) for the treatment of malignant biliary strictures.
  
  
  METHODS
  Patients over age 18 years with symptoms caused by nonhilar malignant biliary strictures were enrolled. Patients were randomized to receive a 10F Tannenbaum or polyethylene stent after a guidewire was passed beyond the stricture. One hundred six patients (mean age 72 years and 71 years, respectively) were enrolled (54 Tannenbaum, mean age 72 years; 52 polyethylene, mean age 71 years).
  
  
  RESULTS
  Tannenbaum and polyethylene stent placement was successful in, respectively, 100% and 96% of procedures without complications. The mean (SD) 90-day stent patency of the Tannenbaum stent was 67% (7%) compared with 73% (7%) for the polyethylene stents.
  
  
  CONCLUSIONS
  The present study demonstrated no difference in ease of implantation or stent patency between Tannenbaum and polyethylene stents.
authors.affiliation: Pancreatic Biliary Center, St. Luke's Medical Center, Milwaukee, WI 53215, USA.
authors.forename: Marc F
authors.initials: MF
authors.lastname: Catalano
authors.forename: Joseph E
authors.initials: JE
authors.lastname: Geenen
authors.forename: Glen A
authors.initials: GA
authors.lastname: Lehman
authors.forename: Jerome H
authors.initials: JH
authors.lastname: Siegel
authors.forename: Leslie
authors.initials: L
authors.lastname: Jacob
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: McKinley
authors.forename: Isaac
authors.initials: I
authors.lastname: Raijman
authors.forename: Peter
authors.initials: P
authors.lastname: Meier
authors.forename: Ira
authors.initials: I
authors.lastname: Jacobson
authors.forename: Richard
authors.initials: R
authors.lastname: Kozarek
authors.forename: Firas H
authors.initials: FH
authors.lastname: Al-Kawas
authors.forename: Simon K
authors.initials: SK
authors.lastname: Lo
authors.forename: Kulwinder S
authors.initials: KS
authors.lastname: Dua
authors.forename: John
authors.initials: J
authors.lastname: Baille
authors.forename: Gregory G
authors.initials: GG
authors.lastname: Ginsberg
authors.forename: William
authors.initials: W
authors.lastname: Parsons
authors.forename: Scott M
authors.initials: SM
authors.lastname: Meyerson
authors.forename: Seth
authors.initials: S
authors.lastname: Cohen
authors.forename: Douglas B
authors.initials: DB
authors.lastname: Nelson
authors.forename: James D
authors.initials: JD
authors.lastname: McHattie
authors.forename: David L
authors.initials: DL
authors.lastname: Carr-Locke
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003137:Common Bile Duct Diseases / Q000209:etiology / Q000628:therapy*; D003251:Constriction, Pathologic / Q000209:etiology / Q000628:therapy; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000150:complications; D020959:Polyethylene; D011138:Polytetrafluoroethylene; D011446:Prospective Studies; D015607:Stents; D016896:Treatment Outcome
chemical_list: D011138:Polytetrafluoroethylene; D020959:Polyethylene