Morphological features of wound repair processes under low-level laser therapy in patients with diabetic foot syndrome

Abstract

Purpose. To assess morphological features of tissue regeneration processes in lower extremities in patients with the diabetic foot syndrome after low-level laser therapy (LLLT).
Materials and methods. The article presents a comparative retrospective analysis of the histological material of wound tissues in 125 patients with the diabetic foot syndrome (DFS). Studied material – histological sections of wound tissues stained with hematoxylin-eosin. The material was divided into two groups: main group – 65 micro-preparations of wound tissues of DFS patients who were treated traditionally plus LLLT; control group – 60 micro-preparations of wound tissues of DFS patients who had surgical wound debridement , then traditional comprehensive therapy with local wet-drying dressings.
Results and discussion. The analysis of the obtained results has shown that LLLT promotes activation of cellular components and increases their number: macrophages, lymphocytes, fi broblasts. One can also see faster regenerative processes and granulation tissue formation as well as signifi cantly less area of wound surface, if to compare to the group of patients treated with traditional comprehensive wound management and local techniques.
Conclusion. LLLT in the comprehensive management of patients with DFS purulent-necrotic forms can accelerate reparative processes in wound defects and signifi cantly reduce their area. It also helps to clean wounds, to reduce or eliminate infl ammatory processes within much shorter terms than under traditional care. LLLT stimulates production of granulation tissue and accelerates epithelialization as well.