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Objective. To study the effectiveness of platelet-enriched plasma application in patients with deep burns at the stage of wounds preparation for autodermoplasty. Materials and methods. The study was performed on 23 patients with burns IIA, IIB and III degrees taking 25 - 40% of the body surface. Comprehensive local treatment of patients of the main group included injection of platelet-enriched plasma at the stage of preparation of postoperative wounds for autodermoplasty. In patients of the control group, local treatment was limited by dressings with antiseptic solution. Examination of patients included visual inspection of the damaged area, microbiological examination of wound contents and histological examination of damaged tissues. Results. Applying the suggested method of burn wounds local treatment resulted in reducing time of wounds preparation for closure by autologous skin grafts, reducing of their healing period, decreasing of tissues inflammatory activity, blood flow improvement, and stimulating processes of tissue granulation, proliferation, epithelialization. Conclusions. The application of the autologous platelet-enriched plasma can be considered as an effective biotechnology that can increase the effectiveness of the skin integrity restoring in patients with burns.

Active use of polymeric materials has become an integral part of all areas of modern medicine. Wound dressings capable of prolonged release of drugs directly into the lesion occupy a special place among them. The possibility of using such materials in the presence of low-intensity currents without external power supplies in a comprehensive treatment program for patients with burn injuries remains promising. The aim of the work is to study experimentally the antimicrobial efficacy of a new composite polymeric material based on poly(2-hydroxyethyl methacrylate), saturated with the antiseptic decamethoxine, under conditions of low-intensity current without external power supplies. The method of free radical thermal polymerization of a mixture of liquid monomer 2-hydroxyethyl methacrylate, crosslinking agent triethylene glycol dimethacrylate, polymerization initiator azobisisobutyronitrile was used for the synthesis of composite polymeric material. In addition, fourfold volume of distilled water as a pore-forming agent and decamethoxine as an antimicrobial component were administered. Known dressings of synthetic and biological origin were selected for comparison, some of which were pre-soaked in a 0.02% solution of decamethoxine. The study of conductivity of the materials without external power supplies was performed on the surface of a dense nutrient medium in a Petri dish using VITA-01M measuring device. Determination of antibacterial properties was performed by diffusion into agar. The obtained results allowed to establish the ability of the suggested polymeric material to conduct low-intensity currents without external power supplies, exceeding the duration of other traditional dressings. Comparison of antimicrobial activity of the studied samples confirmed the synergism of the action of physical factors and a new polymer-based composite material with the addition of antimicrobial substance to inhibit the growth of the test museum and clinical strains of Staphylococcus aureus. The ability of low-intensity currents without external power supplies to potentiate the antimicrobial properties of a new composite polymeric material based on poly(2-hydroxyethyl methacrylate), modified with a pore-forming agent, with the addition of decamethoxine was experimentally established.

Abstract. Introduction. The problem of providing effective care to patients with burn injuries remains far from being finally solved. Due to significant immune disorders that occur against the background of thermal damage, the use of immunomodulatory drugs remains promising. Therefore, the aim of this study was to analyze the effectiveness of systemic use of the immunomodulatory drug Liastenum® in the complex treatment of patients with burn injuries. Materials and methods: The study involved 35 patients with burn injuries with the index of damage severity ranging from 30 to 60 units. Patients in the main group (n = 15) in addition to the usual treatment received an immunomodulator Liastenum®, which was administered intramuscularly at a dose of 2 mg once every 3 days (course dose — 10 mg). Treatment of patients in the comparison group (n = 20) did not involve the use of drugs with targeted immunocorrective action. Examination of patients included laboratory immunological examination of venous blood with assessment of various parts of the immune system and determination of the “Neutrophilic granulocytes form factor” indicator, which was performed on the 3rd, 14th, 21st day after the injury. The results of the study and their discussion. The obtained results allowed to confirm the ability of Liastenum® to stimulate the functional activity of neutrophilic granulocytes, restoring the phagocytic reserves of these cells, to normalize the level of lymphocytes and their individual subpopulation forms. In general, the action of the immunomodulatory drug was characterized by a balanced effect on the cellular, humoral parts of the immune system, phagocytosis. Conclusions. The effectiveness of systemic use of immunomodulatory drug Liastenum® in a comprehensive program of care for patients with burn injuries by balanced correction of immune disorders was laboratory established.

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