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		题名	作者	年代	出处	被引量
	1	Direct peroral cholangioscopy using an ultraslim upper endoscope for biliary lesions显示文摘BACKGROUND: The development of direct peroral cholangioscopy(DPOC) using an ultraslim endoscope simplifies biliary cannulation. The conventional techniques are cumbersome to perform and require advanced skills. The recent introduction of the guidewires and balloons has improved the therapeutic outcomes. Here we describe an effective and easier method for performing DPOC using an ultraslim upper endoscope. METHODS: Indications for DPOC were the presence of stones on follow-up of patients who had previously undergone complete sphincteroplasty, including endoscopic sphincterotomy or endoscopic papillary large balloon dilatation. Fifteen patients underwent DPOC. An ultraslim endoscope was inserted perorally and was advanced into the major papilla. The ampulla of Vater was visualized by retroflexing the endoscope in the distal second portion of the duodenum, and then DPOC was performed using a wire-guided cannulation technique with an anchored intraductal balloon catheter. RESULTS: One patient failed in the treatment due to looping of the endoscope in the fornix of the stomach. Fourteen(93.3%) were successfully treated with our modified DPOC technique. Only one patient(6.7%) experienced an adverse event(pancreatitis) who responded well to conservative management. Residual stones of the common bile duct were completely removed in 3 patients. CONCLUSION: The modified method of DPOC is simple, safe and easy to access the bile duct.	Shigefumi Omuta Iruru Maetani Takeo Ukita Tomoko Nambu Katsushige Gon Hiroaki Shigoka Yoshinori Saigusa Michihiro Saito	2014	Hepatobiliary & Pancreatic Diseases International2014，13，1：	1

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