Lasers in Dermatology and Medicine

Abstract

concerning reproduction outside those terms should be sent to the publishers. The use of registered names, trademarks, etc., in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant laws and regulations and therefore free for general use. Product liability: The publisher can give no guarantee for information about drug dosage and application thereof contained in this book. In every individual case the respective user must check its accuracy by consulting other pharmaceutical literature. Cover design: eStudioCalamar, Figueres/BerlinPrinted on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) I would also like to make a dedication to my mother Mrs. Zohreh Khajavi-Noori, my father Dr. Ali Nouri, my sister Dr. Mahnaz Nouri, my uncle Dr. Farrokh Khajavi, my Grandparents and the rest of my dear family. I love you all.vii A refreshing trait of this book about lasers in dermatology is that it is the first in years, to place this topic within the broader perspective of other medical specialties. Almost immediately after the first laser was created in 1960, a handful of visionary physicians recognized that this extremely powerful source of light might have surgical applications. Those pioneers practiced in three organ systems openly accessible for light exposure -ophthalmology, dermatology, laryngology. These are still the specialties that rely heavily on surgical lasers (with the addition of urology, thanks to laser lithotripsy and prostatectomy). By far, dermatologists have a greater variety of therapeutic lasers than any other medical group, while lagging behind in other aspects of laser medicine.How did we get such a wide, almost dazzling, variety of treatment lasers in dermatology? (Because, we need them for different uses in various practice settings; lasers are the most tissue-specific surgical tools in existence.) Do we really need so many? (Well, we need most all of them. Only a few are interchangeable.) Are the mechanistic, clinical, safety, ethical and practice-related chapters of this book worthy of study? (Yes.) Can't we just learn which buttons to push, in courses provided by the more reputable device manufacturers just after a laser is purchased? (This approach is foolish beyond words, yet such fools exist. You may encounter them, and some of the patients they have harmed. Even more foolish are those who purchase a used laser and start using it without any training whatsoever.)Another asset of this text is its practicality, whether you use lasers or not. If you get hooked on laser dermatology please talk to your colleagues, and attend bona fide laser medical conferences that include your particular clinical interests, in which you are free to ask questions of faculty who are not trying to sell something. Pay close attention to the quality and source of clinical evidence regarding safety and efficacy of a particular laser device. There is no substitute for hands-on training, which cannot be obtained i...

Comparação do laser e do led no processo de cicatrização em feridas cutâneas: uma revisão

“…Apenas nos Estados Unidos, as feridas crônicas afetam 6,5 milhões de pessoas resultando em quadros de dores crônicas, alterações emocionais, infecciosas, metabólicas e estéticas, além de limitações funcionais importantes, tais como alterações de marcha e dificuldades de deambulação 5 . Em virtude da significância clínica e sócio-econômica das feridas cutâneas, soluções inovadoras para melhorar a qualidade de vida dos pacientes acometidos por deficiências no processo de reparação tecidual têm sido investigadas, incluindo o uso de células-tronco, fatores de crescimento, medicamentos, oxigenação hiperbárica e a utilização de recursos da Fisioterapia, tais como o ultrassom e, mais recentemente, a fototerapia [6][7][8][9] . A fototerapia, em seu amplo sentido, significa o uso terapêutico de qualquer tipo de luz.…”

“…A primeira fonte de luz usada na Medicina foi a luz natural do sol, abordagem utilizada por mais de 1000 anos por povos na Índia, China, Grégia e Egito para tratar doenças de pele, entre as quais o vitiligo e a psoríase. Mais tarde, entre os séculos XVIII e XIX, os mecanismos de ação da radiação ultravioleta sobre os seres humanos passaram a ser esclarecidos, especialmente através de estudos do médico e cientista Niels Finsen, ganhador do prêmio Nobel de Medicina de 1903 por seus estudos sobre a fototerapia ultravioleta no lúpus vulgar [9][10][11] . Já em meados da década de 60, as primeiras aplicações clínicas da fototerapia com LASER de baixa potência foram relatadas através dos estudos de Mester, um médico húngaro que descobriu, por acaso, o potencial fotobiológico do LASER de rubi 12 .…”