title: Short-Term Biliary Stent Placement Contributing Common Bile Duct Stone Disappearance with Preservation of Duodenal Papilla Function.
abstract: Aims. To investigate the effect of biliary stent placement without endoscopic sphincterotomy (EST) on common bile duct stones (CBDS) disappearance and the contribution of preserving the duodenal papilla function to reduce recurrence of CBDS. Methods. Sixty-six patients admitted for acute obstructive cholangitis due to CBDS who underwent biliary stent placement without EST for 2 years from March 2011 were evaluated retrospectively. The second endoscopic retrograde cholangiopancreatography (ERCP) was performed for treatment of CBDS 3 to 4 months after the first ERCP. We estimated the rate of stone disappearance at the time of second ERCP. Results. CBDS disappearance was observed in 32 (48.5%) of 66 patients. The diameter of the bile ducts and the diameter of CBDS in patients with CBDS disappearance were significantly smaller than in those with CBDS requiring extraction (p = 0.007 and p < 0.001, resp.). Stone disappearance was evident when the diameter of bile ducts and that of CBDS were <10 and 7 mm, respectively (p = 0.002). Conclusions. Short-term stent placement without EST eliminates CBDS while preserving duodenal papilla function and may be suitable for treating CBDS in patients with nondilated bile ducts and small CBDS.
authors.affiliation: Department of Gastroenterology, Kyoto University Hospital, 54 Kawaracho, Shogoin, Sakyoku, Kyoto 606-8507, Japan.
authors.forename: Tatsuki
authors.identifier: 0000-0002-6705-5626
authors.initials: T
authors.lastname: Ueda
authors.affiliation: Department of Gastroenterology, Shizuoka General Hospital, 4-27-1 Kita-ando, Aoiku, Shizuoka 420-8527, Japan.
authors.forename: Masataka
authors.identifier: 0000-0003-1869-5536
authors.initials: M
authors.lastname: Kikuyama
authors.affiliation: Department of Gastroenterology, Kyoto University Hospital, 54 Kawaracho, Shogoin, Sakyoku, Kyoto 606-8507, Japan.
authors.forename: Yuzo
authors.initials: Y
authors.lastname: Kodama
authors.affiliation: Department of Gastroenterology, Shizuoka General Hospital, 4-27-1 Kita-ando, Aoiku, Shizuoka 420-8527, Japan.
authors.forename: Takafumi
authors.initials: T
authors.lastname: Kurokami