Combined Nonablative Skin Rejuvenation with the 595- and 1450-nm Lasers

Trelles, Mario A.; Allones, Inés; Levy, Jean Luc; Calderhead, R Glen; Moreno‐Arias, Gerardo A.

doi:10.1097/00042728-200410000-00003

Cited by 10 publications

(11 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several skin chromophores are targeted in this kind of approach, with good results. However, a lower fluency must be used with each device to reduce the adverse effects associated with cumulative heat generation …”

Section: Discussionmentioning

confidence: 99%

Characteristics and management of Asian skin

et al. 2018

View full text Add to dashboard Cite

Color differences in skin are due to the amount and distribution of epidermal melanin. The number of melanocytes is almost the same in all skin types, but higher phototypes exhibit more melanocytes, which produce more melanin and melanosomes that are individually distributed throughout the keratinocyte layers. This characteristic ensures a natural, significant photoprotection in darker skins. Asians are a population with various skin phototypes, ranging from type III to IV Fitzpatrick's classification in Chinese and Japanese to type IV and V in Indian and Pakistani people. Asian skin tends to present postinflammatory hyperpigmentation, melasma, lentigines and freckles, nevus of Ota, and Hori nevus. The main skin diseases reported in Asians are acne, atopic dermatitis, and viral infections. Wrinkles and skin thickness, early signs of aging in Caucasians, are less evident in Asian skin. However, pigmentary changes occur earlier. Additionally, this ethnic population is increasing worldwide. The aim of this study is to show the importance of studying the characteristics of Asian skin for the better management of skin diseases in this population, which are being increasingly observed in doctor's offices. Based on a broad review of the medical literature, we report the characteristics of Asian skin, as well as some dyschromias and common skin disorders in this ethnic group. The objective of the article is to study the characteristics of Asian skin and differences in relation to other ethnic groups to achieve improved clinical and cosmetic management of diseases and other skin disorders. This article will discuss the concept of beauty in different ethnic groups, treatments with lasers and other light sources, and cosmiatric treatments in Asian skin. An extensive review of the literature was performed using the databases Scielo and Bireme, from Medline and Lilacs sources, over the last 50 years. The keywords used were as follows: Asian skin, ethnic skin, melanin. Due to the peculiarities of each ethnic group, this article demonstrates the importance of studying the characteristics of Asian skin to elucidate improved cosmiatric approaches for these patients.

show abstract

Section: Discussionmentioning

confidence: 99%

Characteristics and management of Asian skin

et al. 2018

View full text Add to dashboard Cite

show abstract

“…(1) However, the ablative approach is associated with severe side effects and a prolonged patient downtime while nonablative resurfacing with single wavelength light sources has proved less effective than hoped , (2,3) although combinations of wavelengths have recently proved much more effective. (4,5) Both ablative and nonablative skin rejuvenation methods demand the deposition of thermal damage in the upper dermis. In cases with less severe photo-and chronological ageing sequelae, it is possible that a much less invasive and virtually athermal reaction could be very effective, based on the photobiomodulation of target skin cells which leads to the enhanced deposition of collagen and related materials.…”

Section: Introductionmentioning

confidence: 99%

ULTRASTRUCTURAL OBSERVATIONS OF HUMAN SKIN FOLLOWING IRRADIATION WITH VISIBLE RED LIGHT-EMITTING DIODES (LEDs): A PRELIMINARY IN VIVO REPORT

et al. 2005

View full text Add to dashboard Cite

Ablative and nonablative skin rejuvenation procedures with lasers and intense pulsed light (IPL) systems have become very popular for photorejuvenating sun-and chronologically aged skin. Both procedures demand deposition of heat damage in the upper dermis. A new generation of light-emitting diodes (LEDs) with laser-like wavebands and phototherapeutically useful output powers are now reported to be successful for noninvasive athermal photorejuvenation of age-damaged skin. This study was designed to examine the ultrastructural changes induced by irradiation of human skin with visible red LED energy. Six adult male volunteers who satisfied all study criteria had the skin over their fibula irradiated once per week for 8 weeks with a visible red LED-based system at an irradiance of 105 mW/cm 2 , 15 min/session and a radiant flux of 94 J/cm 2. Skin punch biopsies taken from each subject after the second and eighth treatment sessions were routinely prepared for transmission electron microscopy (TEM) and were examined under an electron microscope. After the 2nd session, the skin showed normal undamaged tissue with slight interstitial edema and vimentin filaments notable in fibroblasts. After the 8th session, the number of fibroblasts in the dermis had increased with numerous vimentin filaments in their cytoplasm, and a mild inflammatory infiltration could be seen. The ultrastructure of human skin after 8 LED phototherapy sessions showed no damage-related abnormalities. Mild athermallymediated inflammation was seen together with an increased fibroblast count and enhanced metabolism, which could be related to the enhanced synthesis of collagen and which in facial skin would probably result in an improved skin appearance.

show abstract

“…42 Trelles et al also showed a nonablative rejuvenating effect with both the 595-nm and 1450-nm lasers used singly, but showed enhanced benefit when the two lasers were used sequentially in the same treatment session. 43…”

Section: The 1450-nm Diode Lasermentioning

confidence: 99%

Laser Treatment of Photodamaged Skin

Rostan¹

2005

Facial Plast Surg

View full text Add to dashboard Cite

The market for skin rejuvenation has grown vastly during the last decade. Many new laser technologies are now available to the practitioner for the treatment of sundamage. Ablative laser techniques, while currently less popular because of associated protracted healing times and greater risk of scarring and pigmentary change, remain the gold standard in the treatment of severe sundamage, rhytides, and dermatoheliosis. Newer nonablative techniques have increased in popularity and are an effective method of skin rejuvenation for mild to moderate sundamage; however, they are of limited benefit in the treatment of more severe sundamage. New fractional photothermolysis laser technology is a promising method of rejuvenation that combines much of the efficacy of the ablative procedures with the convenience and safety of the nonablative laser procedures.

show abstract

Combined Nonablative Skin Rejuvenation with the 595- and 1450-nm Lasers

Cited by 10 publications

References 27 publications

Characteristics and management of Asian skin

Characteristics and management of Asian skin

ULTRASTRUCTURAL OBSERVATIONS OF HUMAN SKIN FOLLOWING IRRADIATION WITH VISIBLE RED LIGHT-EMITTING DIODES (LEDs): A PRELIMINARY IN VIVO REPORT

Laser Treatment of Photodamaged Skin

Contact Info

Product

Resources

About