Abstract
Objective: to examine changes in the microcirculatory bed parameters via laser Doppler flowmetry in the course of wound healing and the possibility of their use for upgrading the technology of evaluating the effectiveness of wound healing agents. Materials and Methods. The studies were performed on 25 white rats distributed between two groups: 10 control animals (intact rats) and 15 animals with a full-thickness experimental skin defect. The microcirculation parameters in the skin of experimental wound edges in rats were evaluated using laser Doppler flowmetry, and histological preparations of tissues in the wound area were analyzed. Results. Changes in skin microcirculation at the wound edges were characterized by inflammatory hyperemia manifested by an increase in the perfusion index by 27% and augmented normalized amplitudes of myogenic, respiratory and cardiogenic oscillations. Changes in microcirculation were verified by the morphological picture of inflammation, which reflects an increase in the number of vessels fully filled with arterial and venous blood, as well as in leukocyte infiltration of the wound edges and bottom. Conclusion. Monitoring of microcirculatory disorders occurring in the area of skin wounds allows assessing the dynamics of the reparative process, which could be used for developing and evaluating the effectiveness of existing medicamentous and non-medicamentous methods of stimulating regeneration.
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