PDF Publication Title:
Text from PDF Page: 001
616 REVIEW Effects of low-power light therapy on wound healing: LASER x LED* Maria Emília de Abreu Chaves1 Angélica Rodrigues de Araújo2 André Costa Cruz Piancastelli3 Marcos Pinotti1 DOI: http://dx.doi.org/10.1590/abd1806-4841.20142519 Abstract: Several studies demonstrate the benefits of low-power light therapy on wound healing. However, the use of LED as a therapeutic resource remains controversial. There are questions regarding the equality or not of biological effects promoted by LED and LASER. One objective of this review was to determine the biological effects that support the use of LED on wound healing. Another objective was to identify LED ́s parameters for the treatment of wounds. The biological effects and parameters of LED will be compared to those of LASER. Literature was obtained from online databases such as Medline, PubMed, Science Direct and Scielo. The search was restricted to studies published in English and Portuguese from 1992 to 2012. Sixty-eight studies in vitro and in animals were analyzed. LED and LASER promote similar biological effects, such as decrease of inflammatory cells, increased fibroblast proliferation, stimulation of angiogenesis, granulation tissue formation and increased synthesis of collagen. The irradiation parameters are also similar between LED and LASER. The biological effects are dependent on irradiation parameters, mainly wavelength and dose. This review elucidates the importance of defining parameters for the use of light devices. Keywords: Light; Phototherapy; Wound healing INTRODUCTION A wound is characterized by the interruption on the continuity of a body tissue. It can be caused by any type of physical, chemical and mechanical trauma or triggered by a medical condition.1 Cutaneous wounds are relatively common in adults and their incidence seems to increase in parallel with the advances in life expectancy in the population.2 The therapeutic approach to wound healing consists of preventive measures such as health profes- sional continuing education, family counseling and guidelines to a proper patient nutrition. The use of medicinal plants, administration of essential fatty acids, calcium alginate, antiseptics and degerming products, activated carbon, semi-permeable films, biological collagen, cell growth factors, hydropoly- mer, hydrogel and hydrocolloid substances, proteolyt- ic enzymes, sulfadiazine silver, gauze dressings, bandages for skin protection and compression are also advocated.3 Physical treatments such as therapeutic ultrasound and electrotherapy are cited likewise in the literature as important adjuncts in wound man- agement.4,5 These therapies seem to be advantageous but they have limitations and do not always achieve satisfactory results. Wounds that are difficult to heal represent a serious public health problem. The lesions severely affect the quality of life of individuals due to decreased mobility and substantial loss of productivi- ty; they can also cause emotional damage and con- tribute to increase the burden of public expenditures in healthcare.6 The need to care for a population with poorly healing wounds is a growing challenge that requires innovative strategies. An approach that stands out in the treatment of these lesions is low-power light ther- apy, promoted by light devices such as LASER (Light Amplification by Stimulated Emission of Radiation) and LED (Light Emitting Diode). Received on 06.02.2013. Approved by the Advisory Board and accepted for publication on 29.07.2013. * Work performed at the Bioengineering Laboratory at Universidade Federal de Minas Gerais (UFMG) – Belo Horizonte (MG), Brazil. Conflict of interest: None Financial Support: None 1 Universidade Federal de Minas Gerais (UFMG) – Belo Horizonte (MG), Brazil. 2 Pontifícia Universidade Católica de Minas Gerais (PUC Minas) – Belo Horizonte (MG), Brazil. 3 Serviço de Dermatologia do Hospital da Polícia Militar (HPM) de Minas Gerais - Belo Horizonte (MG), Brasil. ©2014 by Anais Brasileiros de Dermatologia An Bras Dermatol. 2014;89(4):616-23. sPDF Image | Effects of low-power light therapy on wound healing
PDF Search Title:
Effects of low-power light therapy on wound healingOriginal File Name Searched:
abd-89-04-0616.pdfDIY PDF Search: Google It | Yahoo | Bing
Cruise Ship Reviews | Luxury Resort | Jet | Yacht | and Travel Tech More Info
Cruising Review Topics and Articles More Info
Software based on Filemaker for the travel industry More Info
The Burgenstock Resort: Reviews on CruisingReview website... More Info
Resort Reviews: World Class resorts... More Info
The Riffelalp Resort: Reviews on CruisingReview website... More Info
| CONTACT TEL: 608-238-6001 Email: greg@cruisingreview.com | RSS | AMP |