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Low-intensity LED therapy (658 nm) on burn healing: a series of cases
Rauirys Alencar de Oliveira1,2, Luara Lis Barbosa Boson3, Seísa Marina Martins Portela3
1Department of Health Sciences, University of Piauí State (UESPI), Rua Olavo Bilac 2335, Teresina, Piauí, 64001-280, Brazil. rauirys@hotmail.com.
Abstract:
The objective of this study was to evaluate the effects of LED on burns healing. Five patients with skin burns were submitted to photobiomodulation by LED, GaAsIP diode, (λ 658 nm) with 40 mW, 7 J/cm2 on every other day. Biopsies of burned skin were performed and the healing process was photographed. Patients with bilateral burns were used as self-control, having one limb being irradiated and the contralateral limb irradiated with placebo. The burns treated with LED showed higher epithelization, with keratinocytes and fibroblasts proliferation, increased collagen synthesis, decreased pain, and pruritus. In conclusion, there was a faster clinical improvement in the irradiated limbs.
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