Use of low-power laser to assist the healing of traumatic wounds in rats

PURPOSE: To investigate the morphological aspects of the healing of traumatic wounds in rats using low-power laser.METHODS:Twenty four non isogenic, young adult male Wistar rats (Rattus norvegicus) weighing between 200 and 300g was used. The animals were randomly distributed into two groups: Control (GC) and Laser (GL), with 12 animals each. After shaving, anesthesia was performed in the dorsal region and then a surgical procedure using a scapel was carried out to make the traumatic wound. GL received five sessions of laser therapy in consecutive days using the following laser parameters: wavelength 660 nm, power 100 mW, dose 10 J/cm2. The wounds were evaluated through measurement of the area and depth of the wound (MW) and histological analysis (HA).RESULTS:When comparing the GC with the GL in MW there was a difference in area (p<0.001) and depth (p=0.003) measurement of the wounds in GL. The laser group presented more epithelization than GC (p=0.03). The other histological parameters were similar.CONCLUSION:The healing of wounds in rats was improved with the use of the laser.

Bibliographic Details

Main Authors:	Calisto,Fernanda Camila Ferreira da Silva, Calisto,Sérgio Luís da Silva, Souza,Amanda Pires de, França,Cristiane Miranda, Ferreira,Ana Paula de Lima, Moreira,Márcia Bento
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia 2015
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502015000300204
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