Direct Peroral Cholangioscopy by Using an Ultra-slim Upper Endoscope

Choledocholithiasis Clinical Trial

Official title:

A Prospective Randomized Trial of a New Multibending Versus Conventional Ultra-slim Endoscope for Direct Peroral Cholangioscopy Without Device Assistance

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02276157
• Other study ID #: 2014-07-026
• Status: Completed
• Phase: N/A
• Start date: August 2014
• Est. completion date: November 2017

Study information

• Verified date: October 2022
• Source: Soonchunhyang University Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study was aimed to to evaluate the efficacy of the new multibending ultra-slim endoscope compared with a conventional ultra-slim endoscope for free-hand insertion of an endoscope into the bile duct for direct POC.

Description:

Currently available peroral cholangioscopy (POC) is a duodenoscopy-assisted procedure that does not involve directly inserting an endoscope into the biliary tree. A prototype multibending (MB) ultra-slim endoscope has been developed as a dedicated cholangioscope to overcome the technical difficulties of direct POC. In this study, the investigators evaluated the efficacy of the new MB ultra-slim endoscope compared with a conventional ultra-slim endoscope for free-hand insertion of an endoscope into the bile duct for direct POC without the assistance of accessories. The primary outcome was the technical success of free-hand insertion of the endoscope during direct POC, which was defined as successful insertion of the endoscope through the ampulla of Vater and advancement of the endoscope up to the bifurcation or to the obstructed segment of the biliary tree without any accessories within 15 min.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 92
• Est. completion date: November 2017
• Est. primary completion date: January 2017
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• biliary disease requiring diagnostic and/or therapeutic direct POC

• distal common bile duct (CBD) dilation > 8 mm

• previous sphincteroplasty, including major endoscopic sphincterotomy and/or endoscopic papillary balloon dilatation during a prior ERCP

• ability to provide informed consent

Exclusion Criteria:

• presence of any contraindication to ERCP

• bleeding tendency (international normalized ratio > 1.5 or platelet count < 50,000/ mm3)

• diffuse stricture of the distal CBD

• diagnosis of pancreatic cancer or tumor at the ampulla of Vater (AOV)

• altered gastrointestinal anatomy or significant duodenal obstruction

Related Conditions & MeSH terms

• Bile Duct Stricture
• Choledocholithiasis

Intervention

Device:
• Direct peroral cholangioscopy
The multibending (MB) or conventional ultra-slim endoscope was inserted through the mouth. After facing the papillary orifice, the endoscope was inserted directly, without any accessories, into the distal bile duct. The second bending of the MB ultra-slim endoscope was kept in an upward angled position to achieve a more acute angle of the endoscope tip for entering the distal CBD. Then, the endoscope was pushed by steering the first bend into an upward angle ("a" shape) or the endoscope was pulled by steering the first bend into an upward angle and torqueing it counter-clockwise ("u" shape) for insertion into the distal CBD. If the distal bile duct was visualized on an endoscopic view, carbon dioxide insufflation was stopped. The endoscope was advanced into the hilum or the obstructed segment of the extrahepatic bile duct under fluoroscopic and endoscopic control. Then, the diagnostic and therapeutic interventions were performed during direct POC as necessary.

Locations

Country	Name	City	State
Korea, Republic of	Soonchunhyang University Bucheon Hospital	Bucheon

Sponsors (1)

Lead Sponsor	Collaborator
Soonchunhyang University Hospital

Country where clinical trial is conducted

Korea, Republic of, 

References & Publications (6)

Chen YK, Parsi MA, Binmoeller KF, Hawes RH, Pleskow DK, Slivka A, Haluszka O, Petersen BT, Sherman S, Devière J, Meisner S, Stevens PD, Costamagna G, Ponchon T, Peetermans JA, Neuhaus H. Single-operator cholangioscopy in patients requiring evaluation of b — View Citation

Chen YK, Pleskow DK. SpyGlass single-operator peroral cholangiopancreatoscopy system for the diagnosis and therapy of bile-duct disorders: a clinical feasibility study (with video). Gastrointest Endosc. 2007 May;65(6):832-41. — View Citation

Choi HJ, Moon JH, Ko BM, Hong SJ, Koo HC, Cheon YK, Cho YD, Lee JS, Lee MS, Shim CS. Overtube-balloon-assisted direct peroral cholangioscopy by using an ultra-slim upper endoscope (with videos). Gastrointest Endosc. 2009 Apr;69(4):935-40. doi: 10.1016/j.g — View Citation

Moon JH, Ko BM, Choi HJ, Hong SJ, Cheon YK, Cho YD, Lee JS, Lee MS, Shim CS. Intraductal balloon-guided direct peroral cholangioscopy with an ultraslim upper endoscope (with videos). Gastrointest Endosc. 2009 Aug;70(2):297-302. doi: 10.1016/j.gie.2008.11. — View Citation

Moon JH, Ko BM, Choi HJ, Koo HC, Hong SJ, Cheon YK, Cho YD, Lee MS, Shim CS. Direct peroral cholangioscopy using an ultra-slim upper endoscope for the treatment of retained bile duct stones. Am J Gastroenterol. 2009 Nov;104(11):2729-33. doi: 10.1038/ajg.2 — View Citation

Moon JH, Terheggen G, Choi HJ, Neuhaus H. Peroral cholangioscopy: diagnostic and therapeutic applications. Gastroenterology. 2013 Feb;144(2):276-282. doi: 10.1053/j.gastro.2012.10.045. Epub 2012 Nov 2. Review. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The technical success rate of free-hand insertion of an ultra-slim endoscope during direct POC	successful insertion of the endoscope through the AOV and advancement up to the bifurcation or obstructed segment of the biliary tree, without any accessories	within 15 min after insertion of endoscope into the mouth
Secondary	Procedure time required for free-hand insertion	Procedure time required for free-hand insertion	the time of oral intubation with the ultra-slim endoscope to the time of reaching the obstructed segment of the biliary tree or bifurcation, within 15 min after insertion of endoscope into the mouth
Secondary	The technical success of diagnostic and therapeutic interventions	The technical success of diagnostic and therapeutic interventions	Within 24 hours after Completion of DPOC
Secondary	Adverse events related to direct POC	perforation, cholangitis, pancreatitis, and air embolism	Within 7 days after DPOC