[Pathogenetic mechanisms in biliary obstruction (literature review)]

Area of Science:

• Gastroenterology and Hepatology
• Immunology
• Nephrology

Context:

• Extrahepatic biliary obstruction significantly disrupts normal physiological processes.
• Reduced bile flow leads to increased intestinal permeability and bacterial translocation.
• Portal hypertension and shunting exacerbate systemic endotoxemia.

Purpose:

• To elucidate the mechanisms by which biliary obstruction leads to systemic complications.
• To investigate the role of endotoxins and bacterial translocation in obstructive jaundice.
• To highlight the multifaceted organ dysfunction associated with biliary obstruction.

Summary:

• Biliary obstruction causes decreased bile flow, increasing endotoxin absorption into the portal and systemic circulation.
• This results in portal endotoxemia, bacterial translocation, and subsequent systemic endotoxemia.
• Associated complications include immune suppression, liver ischemia, renal failure, coagulation disturbances, and gastrointestinal bleeding.

Impact:

• Understanding these pathways is crucial for managing patients with obstructive jaundice.
• Highlights the systemic effects beyond the biliary system.
• Provides insights into potential therapeutic targets for preventing organ damage.