[A rare complication of parenteral fat nutrition in a child]

Area of Science:

• Pediatric Medicine
• Pathology
• Nutritional Science

Background:

• Parenteral nutrition is a critical supportive therapy for patients unable to receive enteral nutrition.
• Lipid emulsions are essential components of parenteral nutrition, providing caloric and essential fatty acid support.
• Long-term administration of fat emulsions requires careful monitoring for potential adverse effects.

Observation:

• A pediatric case is presented involving a child who received 7 weeks of parenteral nutrition.
• The nutrition regimen included Lipofundin--20%, a fat emulsion, with a total fat dose of 60.7 g/kg body weight.
• The child developed significant pulmonary complications during the treatment period.

Findings:

• Autopsy revealed widespread fat embolism in the pulmonary small arteries and arterioles.
• A prominent giant-cell reaction was observed within the lumen and arterial walls.
• Histochemical analysis confirmed the presence of fat particles in vessels, arterial walls, giant cells, and alveolar macrophages.

Implications:

• This case highlights a potential risk of pulmonary fat embolism associated with prolonged parenteral nutrition using specific lipid emulsions.
• The findings suggest the need for vigilance and potentially adjusted protocols for long-term fat emulsion administration in pediatric patients.
• Further research may be warranted to elucidate the mechanisms and risk factors for such complications.