What Is Moist Wound Healing?

"Wet wound healing" refers to the local moistening of a wound without the formation of scabs. Under such a premise, if a wet healing environment close to a physiological state is created during nursing, it will be conducive to the growth of granulation, facilitate the division of skin cells, and promote the complete healing of the wound. ^[1]

Wet wound healing

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"Wet wound healing" refers to the local moistening of a wound without the formation of scabs. Under such a premise, if a wet healing environment close to a physiological state is created during nursing, it will be beneficial to the growth of granulation, facilitate the division of skin cells, and promote

In 1962, Dr. Winter of the Royal Medical Association confirmed in animal experiments that in a wet environment, wound healing was twice as fast as in a dry environment. This experimental conclusion not only lays the foundation for modern wet wound treatment theory, but also promotes the application of wet wound healing in nursing technology.

1. Epithelial cells must grow rapidly in a humid environment. Under this environment, a variety of growth factors that promote wound healing can be released, stimulate cell proliferation, help maintain cell viability, and grow fibroblasts in wound exudate. Factors, epidermal growth factors, and platelet-derived growth factors are higher in non-humid environments, and these exudates themselves can promote the growth of fibroblasts, keratinocytes and endothelial cells in vitro.

2. The moist environment can accelerate the migration speed and scab of epidermal cells, forcing the epidermal cells to migrate through the crotch, hinder the migration of epidermal cells, and prolong the healing time.

3. Maintain a normal TV gradient from the edge of the wound to the center of the wound, and promote more binding of growth factor receptors to growth factors, which will promote wound healing.

4, white blood cell function is enhanced, moist anti-infection, white blood cells mediate phagocytic cells to exert bactericidal ability.

5. Hypoxia can inhibit the growth of wound bacteria, and the slightly acid environment promotes the growth of fibroblasts, stimulates the growth of blood vessels, and is conducive to wound repair.

6, can adjust the wound oxygen tension, promote blood vessel failure, protect new granulation, reduce pain, and promote wound healing.

7. In a closed and humid environment, exudate is released to activate a variety of enzymes, enzyme activation factors, especially proteases and urokinase (promote the dissolution of fibrin and necrotic tissue), and play an enzymatic role to reduce infection .

8. Provide suitable moisture for wound cells, avoid the scar growth caused by the increase of wound epidermal tension caused by dryness, and accelerate wound healing.