Autologous Platelet-Rich Plasma Enhances the Healing of Large Cutaneous Wounds in Dogs

Recent studies have been carried out to evaluate the role of platelet-rich plasma (PRP) in the cicatrization of wounds; however, the protocols for treatment have been based on a single application of PRP.To evaluate the effect of autologous platelet-rich plasma in gel form on the cicatrization of cutaneous wounds in vivo experimental model, wounds were induced in the dorsal areas of six New Zealand white rabbits with the aid of an 8-mm punch. The right side was used as a control (A) and treated with 0.9% NaCl, whereas the left side (B) was treated serially with the autologous platelet-rich plasma gel. Lesions were assessed over a 17-day period. At days 0, 10 and 17, the animals were evaluated and morphological and morphometric analyses of the wounds were performed. At day 17, a biopsy was performed for histopathological evaluation. Macroscopically, wounds treated with PRP showed better cicatrization and higher contraction percentages than the control wounds. Regarding the percentage of wound contraction, it was found that the average treated wound with autologous platelet-rich plasma gelwas 95% while withthecontrolwas88%. We concluded that autologous platelet-rich plasma gel is effective and accelerates cicatrization when used serially in short intervals, thus confirming its therapeutic potential in cutaneous lesions and potential as an alternative wound treatment option.

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Autologous platelet-rich plasma action on skin autografts in horses

Ciência Rural ◽

10.1590/0103-8478cr20190811 ◽

2021 ◽

Vol 51 (8) ◽

Author(s):

Ana Carolina Barros da Rosa Pedroso ◽

Ana Kellen Lima de Queiroz ◽

Eric Saymon Andrade de Brito ◽

Joel Phillipe Costa e Souza ◽

Marina Pacheco Miguel ◽

...

Keyword(s):

Platelet Rich Plasma ◽

Gluteal Region ◽

Cutaneous Wounds ◽

Wound Induction ◽

Skin Repair ◽

Autologous Platelet Rich Plasma ◽

Receive Treatment ◽

The Right ◽

Autologous Platelet ◽

Centrifugation Protocol

ABSTRACT: This study evaluated the action of autologous platelet-rich plasma (PRP) on cutaneous wounds, containing skin autografts, in the gluteal region of horses. Seven healthy horses were used. Two 6 x 6cm cutaneous wounds were produced on each side of the gluteal region. Eight days after wound induction, grafts were performed with skin fragments harvested from the neck, as well as the application of PRP, prepared by double-centrifugation protocol. Wounds with autografts on the left side received PRP (group T), and those with autografts on the right side did not receive treatment (group C). Macroscopic and microscopic evaluations were performed, considering the integration of autografts and retraction of wound edges, as well as neovascularization, inflammatory infiltrate, young fibroblasts, collagenization, reepithelization and autografts integration. There was no difference between the groups (P > 0.05) in relation to most macroscopic and microscopic variables. However, neovascularization was significantly greater (p = 0.0191) in group T, on the 14th day after grafting. It is concluded that PRP favors the process of skin repair with autografts in horses, since it increases the neovascularization in the initial phase of wound healing. Furthermore, the PRP seems to positively influence the integration of the skin autografts and the retraction of the wound edges.

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