RESUMO
BACKGROUND: Ablative fractional laser surgery is a common technique for treating acne scars. However, an in vivo and noninvasive analysis of the histologic variations between acne skin and the resulting resurfaced skin is needed in order to evaluate the wound healing process of the scars induced by the ablative fractional laser surgery. MATERIALS AND METHODS: Nine patients with acne scars underwent a single treatment with a CO2 ablative fractional laser surgery. Collagen presence on the resurfaced skin was noninvasively assessed by means of Raman spectroscopy and principal component analysis. RESULTS: Principal component analysis shows that all the patients presented a collagen regeneration on the resurfaced skin after the laser treatment. CONCLUSION: Collagen plays a crucial role in the wound healing process. By assessing the collagen presence on the skin, it was possible to quantify the regenerative effects of the ablative fractional laser in a noninvasive way.
Assuntos
Acne Vulgar , Cicatriz , Colágeno , Terapia a Laser , Análise Espectral Raman/métodos , Acne Vulgar/diagnóstico por imagem , Acne Vulgar/terapia , Adolescente , Dióxido de Carbono/uso terapêutico , Bochecha/diagnóstico por imagem , Criança , Cicatriz/diagnóstico por imagem , Cicatriz/terapia , Colágeno/análise , Colágeno/química , Feminino , Humanos , Masculino , Regeneração da Pele por Plasma , Pele/diagnóstico por imagem , Adulto JovemRESUMO
Gynoid lipodystrophy (GLD) is a structural, inflammatory, and biochemical disorder of the subcutaneous tissue causing alterations in the topography of the skin. Commonly known as "cellulite," GLD affects up to 90% of women, practically in all stages of the life cycle, beginning in puberty. It is a clinical condition that considerably affects the patients' quality of life. It is a frequent reason for consultation, although the patients resort to empirical, improvised, nonevidence-based treatments which discourage and can be a source of frustration not only because of the lack of results but also due to the complications derived from those treatments. In this article, a panel of experts from different specialties involved in the management of this clinical skin disorder presents the results of a systematic literature search and of the consensus discussion of the evidence obtained from different treatments currently available. The analysis was divided into topical, systemic, noninvasive, and minimally invasive treatments.
