Análise Microscópica de Incisões realizadas em Ratos, por meio do Bisturí, Termocautério e Laser de Er:YAG

Bramante, Clovis Monteiro; Garcia, Roberto Brandão; Bramante, Alexandre Silva; de Moraes, Ivaldo Gomes; Bernardineli, Norberti

doi:10.1016/S1646-2890(10)70090-X

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Abstract

The aim of this study was to compare the process of tissue repair after a skin incision in rats with steel scalpel, electrosurgery or laser Er:YAG. Five rats (Ratus novergicus) weighing 250g were used in this study. The animals were anesthetized with Ketamin chloridate and graded incisions (4.0cm long × 0.5cm deep) were made in the dorsal skin with scalpel, electrosurgery or laser Er:YAG. Each rat received 3 incisions. After 7 and 14 days animals were killed and the area of incision were examined at the microscope. Histological analysis at 7 and 14 days showed best results with scalpel. Laser incisions showed initial inflammatory response but after 14 days were similar to those after scalpel incision. Electrosurgery incision showed a poor result.

Key-words:

Surgery

Incisions

Laser

Er:YAG

Electrosurgery

Resumo

O objetivo deste trabalho foi analisar, na derme de ratos, o processo de cicatrização de incisões realizadas com bisturi, termocautério e laser Er:YAG. Em 5 ratos (Ratus norvegicus variedade albinus), foram realizadas, nas regiões dorsais, incisões (4.0cm de comprimento × 0.5cm de profundidade) com lâmina de bisturi n° 15, termocautério ou laser Er-YAG. As incisões foram suturadas com fio de seda. Os animais foram mortos após 7 e 14 dias e as peças foram removidas e analisadas microscopicamente. Os resultados mostraram que aos 7 dias, não houve diferença entre a cicatrização das incisões realizadas com bistutí e laser Er-YAG; as incisões realizadas com termocautério exibiram piores resultados.

Palavras-Chave:

Cirurgia

Incisões

Laser

Er:YAG

Termocautério

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☆

(Bramante CM, Garcia RB, Bramante AS, Moraes IG, Bernardineli N. Análise Microscópica de Incisões realizadas em Ratos, por meio do Bisturí, Termocautério e Laser de Er:YAG. Rev Port Estomatol Med Dent Cir Maxilofac 2010; 51: 77–81)

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