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

• Autor(a) principal: Calisto,Fernanda Camila Ferreira da Silva
• Data de Publicação: 2015
• Outros Autores: Calisto,Sérgio Luís da Silva, Souza,Amanda Pires de, França,Cristiane Miranda, Ferreira,Ana Paula de Lima, Moreira,Márcia Bento
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Acta Cirúrgica Brasileira (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502015000300204
• topic: Laser Therapy; Wound Healing; 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.