comparative study of suture and cyanoacrylates in skin closure of rats estudo comparativo entre sutura e cianoacrilatos no fechamento de pele de ratos

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ID: 247187
2007
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Abstract
PURPOSE: To compare the biocompatibility of ethyl-cyanoacrylate (ECA) and octylcyanoacrylate (OCA) wound closures to sutures in rat skin. METHODS: Twenty-four male Wistar rats were subjected to three incisions which were closed using ECA, OCA or sutures . Rats were divided into four groups which received biopsies on the 3rd, 7th, 14th or 21st post-operative days. Necrosis, inflammation, dermatitis, infection, dehiscence, cicatricial enlargement and costs were examined; the histopathology evaluated was epithelialization, deep openings, foreign substance reaction, residues of synthesis material, fibrosis, inflammation, dehiscence and necrosis. RESULTS: The tissue adhesives presented the largest dehiscence levels, and ECA the lowest cost while the other measures were similar. Regarding histopathology, deep openings were more common with OCA and granulomas were most frequently obtained with ECA. The two tissue adhesives produces less inflammation than the inicial suture from post-operative day 7, while ECA and OCA cause similar inflammatory reactions. ECA did not differ significantly from OCA and sutures on other measures. CONCLUSION: ECA was well tolerated in this study and did not induce necrosis, allergic reactions or infections, presenting several advantages in relation to OCA and sutures, including lower costs and fewer complications.
OBJETIVO: Investigar a biocompatibilidade do etil-cianoacrilato (ECA) em fechamento de pele em ratos comparativamente ao octil-cianoacrilato (OCA) e à sutura. MÉTODOS: Rattus norvegicus albinus (n=24) foram submetidos a três incisões, cada uma fechada por um dos métodos de síntese estudados. Quatro grupos (n=6) foram feitos, conforme o dia pós-operatório (DPO) em que foram eutanasiados: 3DPO, 7DPO,14DPO e 21DPO. Necrose, edema, eritema, dermatite, infecção, deiscência, alargamento cicatricial e custos foram os itens examinados; histopatologicamente avaliou-se epitelização, abertura profunda, reação de corpo estranho, resíduos de material de síntese, fibrose, reação inflamatória, deiscência e necrose. RESULTADOS: Os adesivos apresentaram os maiores níveis de deiscências, e o ECA o custo mais baixo; nos demais itens, não houve diferenças. Histopatologia: A abertura profunda foi mais comum com o OCA; ECA foi o material mais encontrado em granulomas; os adesivos foram mais brandos que a sutura a partir do 7º DPO no quesito inflamação, enquanto que o ECA causou uma reação similar ao OCA; nos outros itens, ECA não apresentou diferença importante em relação ao OCA e à sutura. CONCLUSÃO: O ECA foi bem tolerado neste grupo de estudo, sem induzir necrose, reações alérgicas e infecção, apresentando diversas vantagens de uso em relação ao OCA e à sutura.
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Authors ;Sandro Cilindro de Souza;Washington Luiz de Oliveira;Dario Fernando de Oliveira Santos Soares;Carlos Henrique Briglia;Paulo Roberto Athanázio;Martins Dias de Cerqueira;Pedro Hamilton Guimarães;Mário Castro Carreiro
Journal forensic science international
Year 2007
DOI
10.1590/S0102-86502007000400013
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502007000400013
Keywords
materials testing ratssurgery cyanoacrylates tissue adhesives

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