Utility of Direct Peroral Cholangioscopy Using a Multibending Ultraslim Endoscope for Difficult Common Bile Duct Stones

Utility of Direct Peroral Cholangioscopy Using a Multibending Ultraslim Endoscope for Difficult Common Bile Duct Stones - Utility of Direct POC Using a Multibending Ultraslim Endoscope for Difficult CBD stones

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000025048

Enrollment

Registered

2019-11-29

Start date

2014-01-05

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Direct POC using a multibending ultra-slim endoscope

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1)Patients with bile duct stones in whom conventional endoscope stone removal, including mechanical lithotripsy (ML), had failed 2)Previous sphincteroplasty such as endoscopic sphincterotomy (EST) and/or endoscopic papillary balloon dilation (EPBD) 3) distal common bile duct (CBD) dilation more than 8 mm

Exclusion criteria

Exclusion criteria: 1)Stricture of the distal CBD 2)Diagnosis of periampullary cancer 3)Presence of intrahepatic duct (IHD) stones 4)Bleeding tendency : platelet count < 60,000/mm3 or international normalized ratio > 1.5 5)Refusal to participate

Design outcomes

Primary

Measure	Time frame
complete ductal clearance	—

Secondary

Measure	Time frame
Technical success of direct POC Technical success of direct POC-guided lithotripsy Rate of additional ML use Number of ERCP sessions for complete stone removal Procedure time for direct POC-guided lithotripsy	—

Countries

Asia(except Japan)

Contacts

Public ContactYun Nah Lee

SoonChunHyang University School of Medicine Digestive Disease Center and Research Institute, Department of Internal Medicine

yunnah@schmc.ac.kr+82-32-621-5094

Outcome results