Dysfunctional disorders of the biliary tract

Area of Science:

• Gastroenterology
• Biliary Tract Disorders
• Functional Gastrointestinal Disorders

Background:

• Gallbladder (GB) and Sphincter of Oddi (SO) dysfunctions are biliary tract dysfunctional disorders (BTDD) presenting with symptoms like biliary pain or pancreatitis.
• These conditions are motor disorders affecting muscle contractility, leading to abnormal GB emptying or bile/pancreatic juice flow obstruction.
• Existing structural abnormalities do not explain these symptoms.

Purpose of the Study:

• To outline the diagnostic approaches for GB and SO dysfunctions.
• To discuss the treatment efficacy and challenges for these conditions.
• To highlight the role of emotional and behavioral factors in BTDD.

Main Methods:

• GB dysfunction diagnosis relies on clinical presentation (biliary pain without fever/lab abnormalities) and imaging (ultrasonography, cholescintigraphy) to assess GB emptying.
• SO dysfunction is suspected based on clinical, lab, US, and ERCP findings in post-cholecystectomy patients.
• Diagnostic confirmation involves assessing extrahepatic bile transit time and SO manometry.

Main Results:

• Cholecystectomy benefits 50-70% of patients with GB dysfunction, but long-term outcomes are unpredictable.
• Endoscopic sphincterotomy is highly effective for SO dysfunction, especially with manometric confirmation.
• Emotional and behavioral factors can precipitate biliary pain or influence at-risk eating behaviors.

Conclusions:

• GB and SO dysfunctions are distinct motor disorders requiring specific diagnostic pathways.
• While surgical and endoscopic treatments are effective, predicting outcomes remains challenging.
• Integrating psychological assessments into treatment strategies is crucial for comprehensive management of BTDD.