Hepatobiliary dysfunction in infants and children associated with long-term total parenteral nutrition. A...

Area of Science:

• Pediatric Gastroenterology
• Hepatology
• Clinical Nutrition

Background:

• Hepatobiliary dysfunction is a known complication in pediatric patients receiving long-term total parenteral nutrition (TPN).
• The exact cause of this dysfunction remains unclear, impacting patient care and treatment strategies.

Purpose of the Study:

• To investigate the primary pathogenetic mechanism of hepatobiliary dysfunction in infants and children on long-term TPN.
• To explore potential causes, differentiating them from factors like intravenous fluid composition or sepsis.

Main Methods:

• A clinical-pathological study involving fifteen pediatric patients with hepatobiliary dysfunction.
• Analysis of clinical data, pathological findings, and biochemical markers including bile acids and bilirubin.

Main Results:

• Cholestasis is identified as the primary pathogenetic mechanism.
• The dysfunction is not primarily linked to the type of intravenous fluids or sepsis.
• Hepatobiliary dysfunction develops late (around 2-3 months), with elevated bile acids and direct hyperbilirubinemia preceding hepatocellular necrosis.

Conclusions:

• Prolonged fasting associated with TPN may disrupt gastrointestinal mechanisms responsible for bile production and flow.
• Pathological findings and clinical observations support the role of fasting-induced disruption in cholestasis.
• Cholelithiasis was observed in some patients, further indicating biliary system involvement.