title: [Peroral direct cholangioscopy for diagnosis and treatment].
abstract: Peroral direct cholangioscopy (PDCS) is endoscopic method for diagnosis in the common bile duct (CBD) utilizing an ultra-slim upper endoscope. Clinical utility and problem of this method were investigated in ten patients who had stenosis or obstruction in the CBD with stones or a tumor. Scope shaft had to become the form of a U loop by counterclockwise rotation, to advance the scope in the direction of intrahepatic bile duct. As for one case, although the scope was formed alpha loop without U loop, direct observation of total CBC was possible. Large working channel of the endoscope could take adequate tissue sample by large biopsy forceps. Electrohydraulic lithotripsy and stone extraction with a basket could be accomplished easily and safely by direct visualization with a clear image. Pneumobilia was noted in all cases with insertion of PDCS. Although the abdominal pain and pyrexia with regard to PDCS did not occur, transient leukocytosis was noted.
authors.affiliation: Digestive Disease Center, Nikko Memorial Hospital.
authors.forename: Yoshinharu
authors.initials: Y
authors.lastname: Uno
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Nagaoka
authors.forename: Koji
authors.initials: K
authors.lastname: Okuda
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Kamishima
authors.forename: Seiji
authors.initials: S
authors.lastname: Ohkuro
authors.forename: Tatushi
authors.initials: T
authors.lastname: Shimokuni
authors.forename: Takanori
authors.initials: T
authors.lastname: Aoki
authors.forename: Hiromi
authors.initials: H
authors.lastname: Hamada
authors.forename: Joji
authors.initials: J
authors.lastname: Takada
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Kachiki
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001662:Biliary Tract Surgical Procedures / Q000379:methods*; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000295:instrumentation; D042883:Choledocholithiasis / Q000175:diagnosis / Q000473:pathology / Q000628:therapy; D003137:Common Bile Duct Diseases / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy*; D003138:Common Bile Duct Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000628:therapy; D003251:Constriction, Pathologic; D005260:Female; D006801:Humans; D008297:Male