Cholangiography and small duct injury

Area of Science:

• Gastroenterology
• Surgical Procedures
• Medical Device Safety

Background:

• Bile duct injuries (BDIs) are a recognized complication in surgical procedures.
• Small common bile duct diameter (≤3 mm) increases susceptibility to iatrogenic injury.
• Commercial catheters and surgical manipulation tools pose a risk to delicate bile duct structures.

Purpose of the Study:

• To analyze the causes and incidence of bile duct injuries over a 25-year period.
• To identify specific procedural elements contributing to bile duct damage.
• To revise protocols for obtaining cholangiograms in high-risk patients.

Main Methods:

• Retrospective review of 18 reported cases of bile duct injury.
• Analysis of mechanisms of injury, including catheter use, duct manipulation, and instrument size.
• Evaluation of the decision to discontinue cholangiograms in specific clinical scenarios.

Main Results:

• Eighteen bile duct injuries were reported over 25 years.
• Division of small ducts (≤3 mm) occurred in eight cases, often due to catheter manipulation.
• Longitudinal splitting of 3 mm ducts by dilators and overmanipulation were also identified as causes.
• Overclipping of the cystic artery and excessive bile duct mobilization contributed to injuries.

Conclusions:

• Discontinuation of cholangiograms in patients with small cystic ducts is recommended due to low yield and risk of injury.
• Availability of endoscopic sphincterotomy and improved surgical repair techniques influence procedural decisions.
• Hepaticojejunostomy with Silastic tube stenting is the preferred method for repairing bile duct injuries.