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/cm 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.
Os analgésicos são medicamentos que diminuem ou interrompem as vias de transmissão nervosa, suprimindo a dor. Nesse grupo de drogas, estão a dipirona, paracetamol, anti-inflamatórios não esteroides (AINEs) e os narcóticos. Até o final do século XIX, não havia, no Brasil, qualquer analgésico e/ou anti-inflamatório para o tratamento abortivo da migrânea. O ácido acetilsalicílico foi o primeiro a chegar ao país, em 1922; e a dipirona, a segunda, em 1922. A seguir, foram sintetizados dihidroergotamina, paracetamol, os demais AINEs e, finalmente, uma droga específica, os triptanos. Apesar desse arsenal terapêutico, ainda é necessário um maior esforço para o desenvolvimento de novos medicamentos e melhoria dos já existentes
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