title: Ultrathin endoscope-assisted ERCP for inaccessible peridiverticular papilla by a single-balloon enteroscope in a patient with Roux-en-Y anastomosis.
abstract: We describe a case of successful endoscopic retrograde cholangiopancreatography (ERCP) using an ultrathin endoscope for inaccessible peridiverticular papilla by a single balloon enteroscopy (SBE) in a patient with Roux-en Y (R-Y). A 73-year-old man who had total gastrectomy with R-Y for gastric cancer was admitted for acute cholangitis. Although the SBE could be advanced to the end of the afferent loop, we could not identify a major papilla, although a duodenal diverticula could be observed. The enteroscope was replaced with an ultrathin endoscope. The ultrathin endoscope allowed the papilla to be detected distal to the side of the diverticula. After pre-cutting, the ultraslim endoscope was replaced with a conventional forward-viewing endoscope. Eventually, the stones were completely removed using a balloon catheter and basket without procedure-related complication.
authors.affiliation: Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Takao
authors.initials: T
authors.lastname: Itoi
authors.forename: Kentaro
authors.initials: K
authors.lastname: Ishii
authors.forename: Atsushi
authors.initials: A
authors.lastname: Sofuni
authors.forename: Fumihide
authors.initials: F
authors.lastname: Itokawa
authors.forename: Toshio
authors.initials: T
authors.lastname: Kurihara
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Tsuchiya
authors.forename: Shujiro
authors.initials: S
authors.lastname: Tsuji
authors.forename: Nobuhito
authors.initials: N
authors.lastname: Ikeuchi
authors.forename: Fuminori
authors.initials: F
authors.lastname: Moriyasu
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Sakai
mesh_terms: D000368:Aged; D000713:Anastomosis, Roux-en-Y; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000295:instrumentation*; D002761:Cholangitis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000628:therapy; D042883:Choledocholithiasis / Q000150:complications / Q000000981:diagnostic imaging* / Q000628:therapy; D020776:Endoscopes, Gastrointestinal; D004867:Equipment Design; D006801:Humans; D008297:Male