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在胆管内放置支架以前,需对狭窄的胆管进行扩张,肝门部或肝内胆管小而窄时,气囊插入是一个难题。本文报道一种使导管插入更容易、扩张更安全的新型外涂亲水物的锥形气囊。 病人和方法:4例硬化性胆管炎(SC)伴2条主肝管狭窄和1例胆管癌伴肝总管狭窄的病人,在内镜下用外覆亲水物的锥形推进式导管和标准的胆道扩张均失败,而采用本法。术后随
Before placing the stent in the bile duct, it is necessary to expand the narrow bile duct, the hilar or intrahepatic bile duct small and narrow, the balloon insertion is a problem. This article reports a new balloon catheter that is easier to insert into a catheter and expands more safely. PATIENTS AND METHODS: Four patients with sclerosing cholangitis (SC) with two major hepatic duct stenoses and one patient with cholangiocarcinoma with hepatic duct stricture underwent endoscopic ultrasonography using a conical pusher catheter coated with hydrophilic material and a standard Of the biliary tract expansion failed, and the use of this law. After surgery