Insulin vs Lipid Emulsion for Propranolol Overdose in Rabbits
Author Information
Author(s): Harvey Martyn, Cave Grant, Lahner Daniel, Desmet Jan, Prince Gaynor, Hopgood Gary
Primary Institution: Waikato Hospital
Hypothesis
High dose insulin and intravenous lipid emulsion are compared for their efficacy in treating propranolol toxicity in a rabbit model.
Conclusion
High dose insulin resulted in greater rate pressure product compared with lipid emulsion in this rabbit model of severe enteric/intravenous propranolol toxicity.
Supporting Evidence
- Insulin treatment led to a greater rate pressure product at 60 minutes compared to lipid emulsion.
- No significant difference in survival rates was observed between the two treatment groups.
- The study was conducted in a controlled animal model to assess the efficacy of the treatments.
Takeaway
This study tested two treatments for a dangerous drug overdose in rabbits. Insulin worked better than fat emulsion for helping the heart.
Methodology
New Zealand White rabbits were sedated, given propranolol, and then treated with either insulin and glucose or lipid emulsion to compare their effects on heart function.
Potential Biases
Investigators were unblinded to treatment assignments.
Limitations
The study was small and not powered to detect differences in survival rates.
Participant Demographics
Fourteen adult New Zealand White rabbits of mixed gender, aged 95–114 days.
Statistical Information
P-Value
p = .076
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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