Clinical application of parenteral nutrition in the treatment of five ponies and one donkey with hyperlipaemia.
Authors: Durham A E
Journal: The Veterinary record
Summary
# Parenteral Nutrition for Hyperlipaemia in Equines Hyperlipaemia in ponies and donkeys, though often secondary to another underlying disease, carries significant mortality risk if triglyceride concentrations spiral beyond the animal's metabolic capacity. Durham's 2006 case series documented six animals (five ponies, one donkey) receiving lipid-free partial parenteral nutrition—a 1:1 mixture of 50% glucose and 15% amino acid solutions delivering 2.6 kJ/kg/hour energy and 34.3 mg/kg/hour protein—as an adjunctive therapy to address both the metabolic crisis and primary condition. All six animals demonstrated prompt and sustained reductions in serum triglyceride concentrations, with four successfully discharged after positive response to treatment of their underlying complaint; the remaining two were euthanased due to poor prognosis of the primary disease, though hyperlipaemia itself had resolved in both cases. Hyperglycaemia emerged as the principal complication of the nutritional support itself, requiring careful monitoring and glucose management during infusion. For practitioners managing hyperlipaemic cases, this work demonstrates that lipid-free parenteral nutrition can effectively interrupt the metabolic cascade of triglyceride accumulation and may provide valuable stabilisation time for treating concurrent conditions, though clinicians should anticipate glucose dysregulation and remain cognisant that resolution of hyperlipaemia does not guarantee survival if the triggering disease proves refractory to therapy.
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Practical Takeaways
- •Parenteral nutrition is an effective emergency intervention for hyperlipaemia in ponies and donkeys, producing rapid triglyceride reduction even when the primary condition cannot be resolved
- •Lipid-free formulations with standardized glucose and amino acid concentrations can be administered safely, but blood glucose monitoring is essential to manage hyperglycaemia risk
- •Success of the overall case depends on concurrent resolution of the underlying primary condition; hyperlipaemia improvement alone may not ensure survival
Key Findings
- •Lipid-free parenteral nutrition (50% glucose and 15% amino acids) produced prompt and sustained decreases in serum triglyceride concentrations in all 6 cases
- •Energy and protein delivery rates of 2.6 kJ/kg/hour and 34.3 mg/kg/hour were administered successfully
- •Four of six animals (67%) were discharged successfully with good response to treatment of primary conditions
- •Hyperglycaemia was the main complication observed during parenteral nutrition treatment