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Radiofrequência e rejuvenescimento dérmico: revisão narrativa
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| Projeto de pós-graduação_2022101519 | 465.66 KB | Adobe PDF |
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Abstract(s)
O envelhecimento cutâneo, caracterizado por uma diminuição na produção de colagénio e elastina na derme, conduz à perda de firmeza e elasticidade da pele, resultando em rugas, flacidez e textura irregular. Entre as tecnologias não invasivas disponíveis para o rejuvenescimento da pele, a radiofrequência tem-se vindo a destacar devido à sua capacidade de induzir a produção de novo colagénio através do aquecimento controlado das camadas profundas da derme. Esta revisão narrativa tem como objetivo reunir e analisar criticamente a evidência científica disponível sobre a eficácia da radiofrequência no rejuvenescimento dérmico, explorando seus mecanismos de ação, resultados clínicos, segurança e limitações. A radiofrequência atua pela geração de calor nas camadas dérmicas, resultando numa alteração conformacional imediata nas fibras de colágeno bem como na estimulação dos fibroblastos na síntese de novas fibras de colagénio e elásticas. Ainda, o aquecimento induzido pela radiofrequência melhora a circulação sanguínea local e facilita a remoção de toxinas. Diversos estudos demonstram a eficácia da radiofrequência na redução de rugas, melhoria da flacidez e na uniformização da textura da pele, com resultados visíveis após múltiplas sessões. Os dispositivos de radiofrequência variam em termos de aplicação e penetração na pele, sendo classificados como monopolar, bipolar, multipolar e radiofrequência fracionada. Cada tipo de dispositivo apresenta diferentes níveis de eficácia, dependendo da profundidade de penetração e da condição a ser tratada. Embora a radiofrequência seja amplamente considerada segura para todos os tipos de pele e fototipos, alguns efeitos adversos, como vermelhidão, edema e desconforto temporário, podem ocorrer. Ainda assim, estes efeitos são geralmente leves e transitórios. As limitações da radiofrequência incluem a variabilidade dos resultados entre os pacientes e a necessidade de múltiplas sessões para alcançar os resultados desejados, especialmente em pacientes com flacidez mais avançada ou envelhecimento severo. A radiofrequência é uma modalidade eficaz para o rejuvenescimento dérmico, oferecendo uma alternativa segura e não invasiva a outros métodos, como lasers ablativos e cirurgias estéticas. No entanto, a eficácia depende de fatores como a seleção correta do paciente, o protocolo de tratamento e a técnica utilizada. Estudos futuros que investiguem as combinações de radiofrequência com outras modalidades, como ultrassom e microagulhamento, podem ampliar ainda mais os benefícios da radiofrequência e proporcionar melhores resultados em rejuvenescimento dérmico.
Skin aging, characterized by a decrease in the production of collagen and elastin in the dermis, leads to loss of skin firmness and elasticity, resulting in wrinkles, sagging and irregular texture. Among the non-invasive technologies available for skin rejuvenation, radiofrequency has been gaining prominence due to its ability to induce the production of new collagen through controlled heating of the deep layers of the dermis. This narrative review aims to gather and critically analyze the available scientific evidence on the efficacy of radiofrequency in dermal rejuvenation, exploring its mechanisms of action, clinical results, safety and limitations. Radiofrequency acts by generating heat in the dermal layers, resulting in an immediate conformational change in collagen fibers as well as in the stimulation of fibroblasts in the synthesis of new collagen and elastic fibers. Furthermore, the heating induced by radiofrequency improves local blood circulation and facilitates the removal of toxins. Several studies have demonstrated the effectiveness of radiofrequency in reducing wrinkles, improving sagging skin and evening out skin texture, with visible results after multiple sessions. Radiofrequency devices vary in terms of application and skin penetration, and are classified as monopolar, bipolar, multipolar and fractional radiofrequency. Each type of device has different levels of effectiveness, depending on the depth of penetration and the condition being treated. Although radiofrequency is widely considered safe for all skin types and phototypes, some adverse effects, such as redness, edema and temporary discomfort, may occur. However, these effects are generally mild and transient. Limitations of radiofrequency include the variability of results between patients and the need for multiple sessions to achieve the desired results, especially in patients with more advanced sagging or severe aging. Radiofrequency is an effective modality for dermal rejuvenation, offering a safe and non-invasive alternative to other methods, such as ablative lasers and cosmetic surgeries. However, efficacy depends on factors such as correct patient selection, treatment protocol and technique used. Future studies investigating combinations of radiofrequency with other modalities, such as ultrasound and microneedling, may further enhance the benefits of radiofrequency and provide better results in dermal rejuvenation.
Skin aging, characterized by a decrease in the production of collagen and elastin in the dermis, leads to loss of skin firmness and elasticity, resulting in wrinkles, sagging and irregular texture. Among the non-invasive technologies available for skin rejuvenation, radiofrequency has been gaining prominence due to its ability to induce the production of new collagen through controlled heating of the deep layers of the dermis. This narrative review aims to gather and critically analyze the available scientific evidence on the efficacy of radiofrequency in dermal rejuvenation, exploring its mechanisms of action, clinical results, safety and limitations. Radiofrequency acts by generating heat in the dermal layers, resulting in an immediate conformational change in collagen fibers as well as in the stimulation of fibroblasts in the synthesis of new collagen and elastic fibers. Furthermore, the heating induced by radiofrequency improves local blood circulation and facilitates the removal of toxins. Several studies have demonstrated the effectiveness of radiofrequency in reducing wrinkles, improving sagging skin and evening out skin texture, with visible results after multiple sessions. Radiofrequency devices vary in terms of application and skin penetration, and are classified as monopolar, bipolar, multipolar and fractional radiofrequency. Each type of device has different levels of effectiveness, depending on the depth of penetration and the condition being treated. Although radiofrequency is widely considered safe for all skin types and phototypes, some adverse effects, such as redness, edema and temporary discomfort, may occur. However, these effects are generally mild and transient. Limitations of radiofrequency include the variability of results between patients and the need for multiple sessions to achieve the desired results, especially in patients with more advanced sagging or severe aging. Radiofrequency is an effective modality for dermal rejuvenation, offering a safe and non-invasive alternative to other methods, such as ablative lasers and cosmetic surgeries. However, efficacy depends on factors such as correct patient selection, treatment protocol and technique used. Future studies investigating combinations of radiofrequency with other modalities, such as ultrasound and microneedling, may further enhance the benefits of radiofrequency and provide better results in dermal rejuvenation.
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Keywords
Radiofrequência Rejuvenescimento dérmico Colagénio Estética facial Flacidez Radiofrequency Dermal rejuvenation Collagen Facial aesthetics Sagging