Characteristics of endotoxemia in different ways of treatment of experimental burn in rats

Abstract

The article evaluates the dynamics of toxemia and detoxification capabilities of various wound dressings in thermal burn injury in rats in the experiment. A wound dressing based on collagen and chitosan Collachit® and a membrane wound dressing containing a hyperosmolar solution in the cavity were compared. Studies of the dynamics of toxemia in burn disease after experimental thermal injury were carried out on Wistar rats (n=20). Analysis of the results of the study was carried out on the basis of clinical, morphological and biochemical parameters of the peripheral blood of rats with experimental burn injury. The study of the morphology of blood cells is carried out according to generally accepted methods. Biochemical manifestations of endotoxemia are established by the dynamics of ALT, AST, urea, creatinine. In the 1st group of rats (n=10), the Collachit® wound dressing was applied. In the 2nd group (n=10), a semi -permeable membrane filled with a hyperosmolar solution, constituting a necrolytic enzyme, was fixed on the surface of the burn. As a result, it was found that burn toxemia in rats proceeded in 2 phases and was accompanied by depression, food refusal, leukocytosis, increased LII, liver transferases, creatinine and urea. Hematological deviations were characterized by non-uniform dynamics, corresponding to the phase of burn toxemia with maximum increases on days 1-2 and 5-7, a fall on days 3-4, and days 8-10. Hematological manifestations of toxemia depended on the method of treatment and were less pronounced with the use of membrane wound dressings than with collachitis. External signs of toxemia do not in all cases correspond to the hematological and biochemical profile of toxemia, which indicates the possibility of a latent course of burn disease with some methods of treatment. The applied wound dressings had a pronounced antiseptic efficacy, characterized by the absence of purulent-inflammatory complications over the entire period of the experiment.