Preventing parenteral nutrition liver disease

Area of Science:

• Pediatric Gastroenterology
• Hepatology
• Nutritional Science

Background:

• Parenteral nutrition liver disease (PNLD) affects 40-60% of infants requiring long-term parenteral nutrition (PN) for intestinal failure.
• The condition encompasses hepatic steatosis, cholestasis, cholelithiasis, and fibrosis, potentially progressing to cirrhosis and liver failure.

Purpose of the Study:

• To review the multifactorial pathogenesis of PNLD.
• To outline current and emerging management strategies for prevention and treatment.

Main Methods:

• Review of existing literature on PNLD pathogenesis and management.
• Analysis of factors contributing to PNLD, including prematurity, PN duration, and lipid emulsion composition.
• Evaluation of therapeutic interventions such as enteral feeding, specialized lipid emulsions, and ursodeoxycholic acid.

Main Results:

• PNLD pathogenesis is multifactorial, involving gut hormone deficiency, reduced bile flow, and lipid emulsion effects.
• Early enteral feeding, specialized lipid emulsions (e.g., SMOF), and aseptic techniques are key preventive measures.
• Specialized lipid emulsions and ursodeoxycholic acid show promise in managing established cholestasis.

Conclusions:

• PNLD is a significant complication of long-term PN in infants.
• A multidisciplinary approach focusing on early enteral feeding and optimized PN formulation is crucial for prevention.
• Liver and intestinal transplantation remains a viable option for end-stage disease.