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  • Title: Ineffectiveness of heparin treatment in burn shock in the guinea pig.
    Author: Wolfe RR, Miller HI.
    Journal: Aviat Space Environ Med; 1976 Jun; 47(6):652-6. PubMed ID: 938400.
    Abstract:
    The cardiovascular and metabolic responses during burn shock were characterized in 10 guinea pigs burned to the xyphoid process for 3 s in boiling water. This produced a burn of approximately 70% of the body surface. Their responses were compared to the values obtained at corresponding times in a group of unburned controls (n=10). The effect of Heparin treatment on burn shock was evaluated in another group (n=8) of guinea pigs burned to the xyphoid process and injected subcutaneously with 50,000 U Heparin/kg immediately after being burned. In the burned, untreated (BUT) animals, cardiac output was reduced more than 50% at 15 mins post-burn, and cardiac output remained depressed for the next 8 h. Mean arterial blood pressure was initially maintained in the BUT animals, but started to fall after 3 h. Heart rate, oxygen consumption and core temperature all decreased progressively in the BUT group. Hemoconcentration was evident in the BUT animals, and there was an elevation in the post-burn glucose and lactate levels, a decrease in pH, and no change in free fatty acids. Heparin treatment did not significantly modify 24-h survival, and the post-burn cardiovascular responses of the Heparin-treated animals were similar to those of the BUT animals. Metabolically, the Heparin-treated animals had a significant elevation in free fatty acids post-burn, but otherwise closely resembled the BUT animals.
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