Patients who are diagnosed, or suspected, as harboring common bile duct (CBD) stones and scheduled to undergo elective laparoscopic cholecystectomy
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1 Patients diagnosed with CBD stones, confirmed or suspected as a result of clinical symptoms, serological tests, ultrasonography or MRCP, who are scheduled to undergo elective laparoscopic cholecystectomy (regardless of whether they underwent endoscopic sphincterotomy) 2 Patients older than 19 years of age at the time of surgery 3 Patients providing written informed consent
Exclusion criteria
Exclusion criteria: 1 Large(9mm or more) or multiple (n=6 or more)CBD stones 2 Suspected primary CBD stones 3 Intrahepatic stones or biliary dilatation 4 Aberrant hepatic duct which joins the cystic duct or the bile duct close to the cystic duct 5 Anomalous arrangement of the pancreaticobiliary ducts 6 Suspected biliary malignancy 7 Allergic to radiopaque contrasts 8 Short cystic duct making the introduction of choledochoscope problematic 9 Acute cholecystitis 10 Presence of a biliary stent at the time of surgery
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary outcomes are successful insertion of the super-thin choledochoscope into the common bile duct (CBD) via transcystic route and successful CBD exploration of both the distal (to the papilla) and proximal (to the bifurcation) parts of the bile duct. | — |
Secondary
| Measure | Time frame |
|---|---|
| To evaluate whether the choledochoscope contributes to improvement in the detection and one-stage clearance of CBD stones | — |
Countries
Japan
Contacts
Aichi Medical University Gastroenterological Surgery