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2) Catalano MF, Geenen JE, Schmalz MJ, et al. Treatment of pancreatic pseudocysts with ductal communication by transpapillary pancreatic duct endoprosthesis. Gas-trointest Endosc 1995; 42: 214-218. (OS) 3) Binmoeller KF, Seifert H, Walter A, et al. Transpapil-lary and transmural drainage of pancreatic pseudo-cysts. Gastrointest Endosc 1995; 42: 219-224. (OS) 4) Baron TH, Thaggard WG, Morgan DE, et al. Endo-scopic therapy for organized pancreatic necrosis. Gas-troenterology 1996; 111: 755-764. (OS) 5) Smoczyn´ski M, Jagielski M, Jabłon´ska A, et al Trans-papillary drainage of walled-off pancreatic necrosis - a single center experience. Wideochir Inne Tech Maloin-wazyjne 2016; 10: 527-533. (OS) 6) Baron TH. Endoscopic drainage of pancreatic fluid col-lections and pancreatic necrosis. Gastrointest Endosc Clin N Am 2003; 13: 743-764. (SR) 7) Rogers BH, Cicurel NJ, Seed RW. Transgastric needle aspiration of pancreatic pseudocyst through an endo-scope. Gastrointest Endosc 1975; 21: 133-134. (CS)圧亢進症をきたし,胃周囲の側副血行路が発達している症例もあるが,EUSで介在血管の有無を確認しながら穿刺できるため,より安全に穿刺が可能である。実際に,2つのRCTの結果でEUSガイド下ドレナージの方が直視内視鏡下ドレナージよりも手技成功率が高く(100% vs. 33%,94% vs. 72%),偶発症発生率は低いため(0% vs. 13.3%,7% vs. 10%),有用であるとの結果が報告されている(RCT)9, 10)。直視内視鏡下ドレナージ群では重篤な出血偶発症による死亡例も報告されている。手技,処置具の発達に伴い,EUSガイド下ドレナージは世界的に普及し,壊死物質をほとんど含まない病変に対する手技成功率は約95%,臨床奏効率は約90%,偶発症率は0〜9%程度と非常に有用で安全な治療法であることが報告されている(SR)11)(OS)12)。11. 膵局所合併症に対するインターベンション治療147 8) Grimm H, Binmoeller KF, Soehendra N. Endosonogra-phy-guided drainage of a pancreatic pseudocyst. Gas-trointest Endosc 1992; 38: 170-171. (CS) 9) Varadarajulu S, Christein JD, Tamhane A, et al. Pro-spective randomized trial comparing EUS and EGD for transmural drainage of pancreatic pseudocysts (with videos). Gastrointest Endosc 2008; 68: 1102-1111. (RCT) 10) Park DH, Lee SS, Moon SH, et al. Endoscopic ultra-sound-guided versus conventional transmural drainage for pancreatic pseudocysts: a prospective randomized trial. Endoscopy 2009; 41: 842-848. (RCT) 11) Seewald S, Ang TL, Kida M, et al; EUS 2008 Working Group. EUS 2008 Working Group document: evaluation of EUS-guided drainage of pancreatic-fluid collections (with video). Gastrointest Endosc 2009; 69(2 suppl):S13-S21. (SR) 12) Will U, Wanzar C, Gerlach R, et al. Interventional ultra-sound-guided procedures in pancreatic pseudocysts, abscesses and infected necroses - treatment algorithm in a large single-center study. Ultraschall Med 2011; 32: 176-183. (OS)■引用文献 1) Barthet M, Sahel J, Bodiou-Bertei C, et al. Endoscopic transpapillary drainage of pancreatic pseudocysts. Gas-trointest Endosc 1995; 42: 208-213. (OS)

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