![]() Gastrointest Endosc 56:488–495įreeman ML, Di Sario JA, Nelson DB, Fennerty MB, Lee JG, Bjorkman DJ, Overby CS, Aas J, Ryan ME, Bochna GS, Shaw MJ, Snady HW, Erickson RV, Moore JP, Roel JP (2001) Risk factors for post-ERCP pancreatitis: a prospective, multicenter study. Endoscopy 45(8):605–618Īndriulli A, Clemente R, Solmi L, Terruzzi V, Suriani R, Sigillito A, Leanrdo G, Leo P, De Maio G, Perri F (2002) Gabexate or somatostatin administration before ERCP in patients at high risk for post-ERCP pancreatitis: a multicenter, placebo-controlled, randomized clinical trial. Tse F, Yuan Y, Moayyedi P, Leontiadis GI (2013) Guidewire-assisted cannulation for the prevention of post-ERCP pancreatitis: a systematic review and meta-analysis. ![]() Shao LM, Chen QY, Chen MY, Cai JY (2009) Can wire-guided cannulation reduce the risk of post-endoscopic retrograde cholangiopancreatography pancreatitis? A meta-analysis of randomized controlled trials. Am J Gastroenterol 104(9):2343–2350Ĭheung J, Tsoi KK, Quan WL, Lau JY, Sung JJ (2009) Guidewire versus conventional contrast cannulation of the common bile duct for the prevention of post-ERCP pancreatitis: a systematic review and meta-analysis. ![]() Ĭennamo V, Fuccio L, Zagari RM, Eusebi LH, Ceroni L, Laterza L, Fabbri C, Bazzoli F (2009) Can a wire-guided cannulation technique increase bile duct cannulation rate and prevent post-ERCP pancreatitis? A meta-analysis of randomized controlled trials. Widmer J, Alvarez P, Sharaiha RZ, Gossain S, Kedia P, Sarkaria S, Sethi A, Turner BG, Millman J, Lieberman M, Nandakumar G, Umrania H, Gaidhane M, Kahaleh M (2015) Endoscopic gallbladder drainage for acute cholecystitis. ![]() Moxon DR, Hong K, Brown RD, Venu RP (2003) Selective intrahepatic ductal cannulation during ERCP with a sphincterotome. Ann Gastroenterol 25:291–302įreeman ML, Guda NM (2005) ERCP cannulation: a review of reported techniques. ĭaVee T, Garcia JA, Baron TH (2012) Precut sphincterotomy for selective biliary duct cannulation during endoscopic retrograde cholangiopancreatography. Laasch HU, Tringali A, Wilbraham L, Marriott A, England RE, Mutignani M, Perri V, Costamagna G, Martin DF (2003) Comparison of standard and steerable catheters for bile duct cannulation in ERCP. The phantom and animal studies show that the prototype performance potentially facilitates papilla cannulations and intrahepatic ductal branch seeking.ĪSGE Technology Committee, Kethu SR, Adler DG, Conway JD, Diehl DL, Farraye FA, Kantsevoy SV, Vivek K, Kwon RS, Mamula P, Pedrosa MC, Rodriguez SA, Tierney WM (2010) ERCP cannulation and sphincterotomy devices. The SC prototype records balanced bidirectional bending with a maximum bending angle of ± 162° without breakage risk. We propose a wire-driven SC design for ERCP using a multi-lumen seamless tube and two loop-formed control wires, different from the conventional SC design with a multiple-slit tube and single control wire. Phantom studies showed that the SC prototype could perform the large and protuberant papilla insertions and fine ductal branch selections without breaking the animal study was completed successfully. The tip flexibility was comparable to conventional SCs, and the insertion resistance was similar to the passive catheters. The lateral tip position in the bent shape was maximally 56% smaller. The maximum bend angle was 162°, almost twofold larger than that for conventional SCs. The proposed design reduced the wire contact force by 48% compared to the single wire configuration. Feasibility studies were performed, including major duodenal papilla insertions and ductal branch selections in desktop phantoms and a mini-pig model. The bending performance was compared with conventional SCs. We evaluated the wire routing design using a static model. The SC prototype employed a slit-less and multiple-lumen seamless tube with a polytetrafluoroethylene (PTFE) body with stretch-retractable porous expanded PTFE at the distal end, and loop-formed control wires. We assess the SC prototype’s steerability using phantom and animal models. We propose a wire-driven SC for balanced bidirectional bending using artificial blood vessel material to overcome these limitations. Current steerable catheters (SCs) for endoscopic retrograde cholangiopancreatography (ERCP) have performance limitations caused by an asymmetric multiple-slit tube design with a small maximum bend angle, lesser curvatures, and insufficient durability.
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