• 1
    Kahaleh M, Tokar J, Conaway MR et al. Efficacy and complications of covered Wallstents in malignant distal biliary obstruction. Gastrointest. Endosc. 2005; 61: 528533.
  • 2
    Taylor MC, McLeod RS, Langer B. Biliary stenting versus bypass surgery for the palliation of malignant distal bile duct obstruction: A meta-analysis. Liver Transpl. 2000; 6: 302308.
  • 3
    Isayama H, Nakai Y, Kawakubo K et al. Endoscopic retrograde cholangiopancreatography for distal malignant biliary stricture. Gastrointest. Endosc. Clin. N. Am. 2012; 22: 479490.
  • 4
    Lee JH. Self-expandable metal stents for malignant distal biliary strictures. Gastrointest. Endosc. Clin. N. Am. 2011; 21: 463480.
  • 5
    Dumonceau J-M, Tringali A, Blero D et al. Biliary stenting: Indications, choice of stents and results: European Society of Gastrointestinal Endoscopy (ESGE) clinical guideline. Endoscopy 2012; 44: 277298.
  • 6
    Artifon EL, Sakai P, Ishioka S et al. Endoscopic sphincterotomy before deployment of covered metal stent is associated with greater complication rate: A prospective randomized control trial. J. Clin. Gastroenterol. 2008; 42: 815819.
  • 7
    Shimizu S, Naitoh I, Nakazawa T et al. Predictive factors for pancreatitis and cholecystitis in endoscopic covered metal stenting for distal malignant biliary obstruction. J. Gastroenterol. Hepatol. 2012; 28: 14401746.
  • 8
    Kawakubo K, Isayama H, Nakai Y et al. Risk factors for pancreatitis following transpapillary self-expandable metal stent placement. Surg. Endosc. 2012; 26: 771776.
  • 9
    Kim JH. Endoscopic stent placement in the palliation of malignant biliary obstruction. Clin. Endosc. 2011; 44: 7686.
  • 10
    Raijman I. Biliary and pancreatic stents. Gastrointest. Endosc. Clin. N. Am. 2003; 13: 561592.
  • 11
    Davids PH, Groen AK, Rauws EA, Tytgat GN, Huibregtse K. Randomised trial of self-expanding metal stents versus polyethylene stents for distal malignant biliary obstruction. Lancet 1992; 340: 14881492.
  • 12
    Prat F, Chapat O, Ducot B et al. A randomized trial of endoscopic drainage methods for inoperable malignant strictures of the common bile duct. Gastrointest. Endosc. 1998; 47: 17.
  • 13
    Soderlund C, Linder S. Covered metal versus plastic stents for malignant common bile duct stenosis: A prospective, randomized, controlled trial. Gastrointest. Endosc. 2006; 63: 986995.
  • 14
    Knyrim K, Wagner HJ, Pausch J, Vakil N. A prospective, randomized, controlled trial of metal stents for malignant obstruction of the common bile duct. Endoscopy 1993; 25: 207212.
  • 15
    Ito K, Igarashi Y, Mimura T, Kishimoto Y, Kikuchi Y, Okano N. Efficacy of the new double-layer stent for unresectable distal malignant biliary obstruction: A single-center retrospective study. Diagn. Ther. Endosc. 2012; 2012: 680963.
  • 16
    Isayama H, Komatsu Y, Tsujino T et al. A prospective randomised study of ‘covered’ versus ‘uncovered’ diamond stents for the management of distal malignant biliary obstruction. Gut 2004; 53: 729734.
  • 17
    Krokidis M, Fanelli F, Orgera G et al. Percutaneous palliation of pancreatic head cancer: Randomized comparison of ePTFE/FEP-covered versus uncovered nitinol biliary stents. Cardiovasc. Intervent. Radiol. 2011; 34: 352361.
  • 18
    Telford JJ, Carr-Locke DL, Baron TH et al. A randomized trial comparing uncovered and partially covered self-expandable metal stents in the palliation of distal malignant biliary obstruction. Gastrointest. Endosc. 2010; 72: 907914.
  • 19
    Kullman E, Frozanpor F, Soderlund C et al. Covered versus uncovered self-expandable nitinol stents in the palliative treatment of malignant distal biliary obstruction: Results from a randomized, multicenter study. Gastrointest. Endosc. 2010; 72: 915923.
  • 20
    Kitano M, Yamashita Y, Tanaka K et al. Drastic improvement of patency of covered self-expandable metal stents for distal biliary obstruction caused by pancreatic carcinomas: A randomized multicenter study comparing covered and uncovered stents. Gastrointest. Endosc. 2012; 75: AB123.
  • 21
    Almadi MA, Barkun AN, Martel M. No benefit of covered vs uncovered self-expandable metal stents in patients with malignant distal biliary obstruction: A meta-analysis. Clin. Gastroenterol. Hepatol. 2012; 12: 12741278.
  • 22
    Isayama H, Mukai T, Itoi T et al. Comparison of partially covered nitinol stents with partially covered stainless stents as a historical control in a multicenter study of distal malignant biliary obstruction: The WATCH study. Gastrointest. Endosc. 2012; 76: 8492.