title: Technical tips for peroral transluminal cholangioscopy using novel single-operator cholangioscope (with videos).
abstract: Endoscopic retrograde cholangiopancreatography (ERCP) is the gold-standard modality for diagnosis and therapy of bilio-pancreatic disease. In particular, peroral cholangiography (POCS) is a useful modality not only for diagnosing biliary disease, but also for therapeutic procedures such as electrohydraulic lithotripsy. The SPY-DS single-operator cholangioscope has recently become available, and offers favorable visualization, a wide view, suction function and a larger accessory working channel. However, if the duodenoscope cannot be advanced into the ampulla of Vater for reasons such as surgical anatomy, POCS cannot be performed. On the other hand, percutaneous transhepatic cholangiodrainage (PTCD) has been developed as an alternative endoscopic ultrasound-guided approach to the biliary tract. Peroral transluminal cholangioscopy (PTLC) using SPY-DS is a novel approach. Because transluminal interventional procedures under endoscopic ultrasound guidance have recently been developed, our technique may have clinical impact for selected cases.
authors.affiliation: Second Department of Internal Medicine, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan. oguratakeshi0411@yahoo.co.jp.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Ogura
authors.affiliation: Second Department of Internal Medicine, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan.
authors.forename: Wataru
authors.initials: W
authors.lastname: Takagi
authors.affiliation: Department of Pathology, Osaka Medical College, Takatsuki, Osaka, Japan.
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Kurisu
authors.affiliation: Second Department of Internal Medicine, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan.
authors.forename: Kazuhide
authors.initials: K
authors.lastname: Higuchi
mesh_terms: D001653:Bile Ducts, Intrahepatic / Q000000981:diagnostic imaging / Q000473:pathology; D001660:Biliary Tract Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D001707:Biopsy, Needle; D002758:Cholangiography / Q000379:methods*; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000379:methods; D019160:Endosonography / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D007150:Immunohistochemistry; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D057605:Natural Orifice Endoscopic Surgery / Q000295:instrumentation / Q000379:methods*; D016896:Treatment Outcome
keywords: Cholangioscopy; Endoscopic retrograde cholangiopancreatography; Endoscopic ultrasound; Peroral cholangioscopy