The article describes the results of the experimental study in which the effect of ischemic-reperfusion limb syndrome on changes in the internal organs was studied. Changes in the values of Malone dialdehalide, superoxide dismutase and catalase in the tissues of the kidneys, liver, lungs and muscles of the extremities were studied. These studies confirmed the hypothesis and proved the presence of signs of systemic changes as a result of applying a hemostatic tourniquet, the presence of potentiating effects of reperfusion syndrome with a combined injury of the abdominal cavity against the ground of hypovolemic shock.

No abstract

The aim of the study was to study the possibility of using a hemostatic biological haemostatic to stop bleeding from the parenchymal organs of the abdominal cavity using the surgical method of Damage control. The experiment was performed on laboratory rats that were divided into three groups: a control group, a group where, after injury, the liver wound was sutured with standard sutures and a group where the wound was plastered with a biological hemostatic agent. In order to determine the operational stress, we studied the enzymatic link of antioxidant protection - the level of catalase and superoxide dismutase. To study the indices in all experimental animals, the following tissues were taken: the lower lobe of the right lung, the proportion of the liver where the wounds were applied, the gastrocnemius muscle below the harness and the right kidney. The control points of the study were 1, 3 and 7 days after injury. During working with experimental animals, they adhered to all ethical norms established by international rules. The effect of operational stress on the enzymatic component of antioxidant protection in the tissues of the kidneys, liver, lungs and muscles was studied in the study of the combined trauma of the abdominal cavity complicated by massive bleeding and ischemic-reperfusion syndrome of the extremity. The changes in the indices of superoxide dismutase and catalase were studied. The following result was obtained: tamponing the liver wound with chitosan was a quick and effective means of temporary bleeding stop. At the same time, the duration of the operation was reduced from 19.8 to 12.5 minutes (by 36.8%) (p <0.05). Also, the level of catalase and superoxide dismutase was significantly lower in the group where the chitosan of the liver injury was used in comparison with the study group where standard stitches were applied. The deviations, which are determined in lung, liver, kidney and muscle tissues in RG-1 are evidence of the depth of their lesion and dysfunction, is a favorable factor for the further development of the triggering mechanisms of the systemic response of the body to inflammation and multiple organ failure. In contrast to the RG-2 rapid development of the systemic response was avoided. We can assume that ischemic-reperfusion syndrome is a stimulating factor in the development of systemic changes, although this statement requires further proof. It is also important to further prospective study of this topic in terms of the following questions: what effect has chitosan on liver tissue with prolonged exposure (more than 2 days) and what effect does additional injection of infusion solutions have as an agent for the treatment of hypovolemic shock.