Resumo

MURAKAMI-MORISHIGE, Pablo D. et al. Topic and subdermic injection of simvastatin for wound reepithelialization versus hydrocolloid dressing in an animal model. Cir. plást. iberolatinoam. [online]. 2016, vol.42, n.2, pp.141-147. ISSN 1989-2055.

Background and Objective. There are various alternatives and dressings for split thickness skin wounds, the choice depends on the experience and training of each surgeon. Statins, which are normally used for the treatment of hypercholesterolemia, have proven to induce and antinflammatory effect on wound keratinocytes, which provokes a faster re-epithelialization on in vitro studies. Our aim was to compare epithelialization and anti-inflammatory properties in split thickness wounds of rats, using hydrocolloid dressings versus a simvastatin based emulsion or simvastatin injected. Methods. We used 20 Wistar rats divided in 4 groups in which split thickness wounds were induced in the dorsum by dermoabrasion. Each group was treated with organza gauze, hydrolloid dressings, simvastatin cream and injectable simvastatin in the wound, respectively. Seven days later, the wounds were exposed and the animals where sacrificed. The wounds were analyzed with digital photographs and biopsies where taken in order to compare the epithelization percentage in each group. Results. There was a statistically significant improvement (p < 0.05) in wound rate epithelialization in the rats treated with topic simvastatin. The wounds treated with topic simvastatin had less inflammation, less fibrosis, no evidence of crusting and a higher number of fibroblast. Conclusions. Split thickness skin wounds coverage with topical simvastatin is most effective in epithelialization and antinflamatory effect compared with injectable simvastatin, organza gauze dressings and hydrocolloid dressings.

Palavras-chave : Split thickness wounds; Re-epithelialization; Simvastatin; Statins.

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