Treatment of Pseudofolliculitis With a Pulsed Infrared Laser

Kauvar, Arielle N. B.

doi:10.1001/archderm.136.11.1343

Cited by 43 publications

(27 citation statements)

References 13 publications

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“…or adjunctive treatment of several hair disorders that are disproportionately prevalent in individuals of African ancestrypseudofolliculitis barbae, [11][12][13][14][15][16][17][18] acne keloidalis nuchae, 19,20 dissecting cellulitis of the scalp 21,22 and folliculitis decalvans. 23 When performing laser hair removal in individuals with richly pigmented skin, epidermal melanin acts as a competing chromophore and, therefore, the risk of adverse events from epidermal injury is greater than in lighter skin types.…”

Section: Laser Hair Removalmentioning

confidence: 99%

Lasers and light-based therapies in ethnic skin: treatment options and recommendations for Fitzpatrick skin types V and VI

Alexis

2013

Br J Dermatol

113

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SummaryEthnic skin or 'skin of colour', which is characterized by increased epidermal melanin, labile melanocytes and reactive fibroblast responses, poses special challenges for the use of laser and light-based therapies. These therapies are associated with a greater risk of dyspigmentation and scarring in ethnic skin and therefore require careful selection of device and treatment parameters to minimize complications. Whereas early-generation lasers for hair removal and resurfacing were generally contraindicated for individuals with Fitzpatrick skin phototypes (SPT) IV-VI, advances in the past decade have given rise to a range of devices that can be safely used in ethnic skin. Longer wavelength lasers such as the 810 and 1064 nm Nd:YAG; intense pulsed light and monochromatic excimer light (308 nm); fractional lasers; and radiofrequency devices have all been used safely for hair removal, pigmentary abnormalities, resurfacing and skin tightening in ethnic skin, respectively. Notwithstanding these advances, nuances in the laser or light treatment of darker skin types remain and must be considered to ensure safe therapeutic outcomes. The vast majority of published data pertaining to lasers and light treatments in nonwhite skin involve patients of East Asian ethnicity (e.g. Korean, Japanese, Chinese, Thai). By contrast, there is a paucity of studies involving individuals of African ancestry or those with SPT V or VI. This article will review laser and light-based modalities that are considered safe and effective for individuals with richly pigmented skin. What's already known about this topic?• Published data or recommendations on the safe and effective use of lasers in Fitzpatrick skin phototypes (SPT) V and VI are limited. What does this study add?• This review addresses knowledge and practice gaps by summarizing available data on the use of lasers in patients with SPT V and VI, a subset of the population in which the risk of iatrogenic pigmentary and scarring complications is highest.• This provides clinicians with practical knowledge of which devices have been studied in SPT V and VI and offers treatment recommendations to improve outcomes.Traditionally, the literature on cosmetic procedures, especially laser and light-based therapies, has focused on the treatment of individuals of European ancestry with Fitzpatrick skin phototypes (SPT) I-III. Safety limitations of first-generation technologies as well as socioeconomic, demographic and cultural factors may contribute to the relative lack of studies involving the various racial/ethnic groups with constitutively darker skin. Shifts in the aforementioned contributing factors have led to considerable increases in the performance of cosmetic procedures in nonwhite racial/ethnic groups. According

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Section: Laser Hair Removalmentioning

confidence: 99%

Lasers and light-based therapies in ethnic skin: treatment options and recommendations for Fitzpatrick skin types V and VI

Alexis

2013

Br J Dermatol

113

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“…1,85 A cura é a destruição do pêlo por eletrólise, laser ou remoção cirúrgica dos bulbos. 1,86,87 A acne queloideana da nuca, também conhecida como foliculite da nuca, é enfermidade não tão freqüente, afetando os indivíduos negros do sexo masculino e sendo rara na mulher. A etiologia é desconhecida, mas parece que a inflamação é também causada pela curvatura do pêlo seguida de sua penetração na derme.…”

Section: Enfermidades Do Cabelo E Do Couro Cabeludounclassified

Dermatologia na pele negra

Alchorne

Abreu

2008

An. Bras. Dermatol.

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Resumo: Este estudo aborda a dermatologia na pele negra. Inicialmente, discute os conceitos de raça e etnia, assim como os critérios de classificação da população brasileira, indicando as regiões em que a população negra se concentra. A seguir, faz breve explanação sobre os sistemas de classificação da cor da pele e descreve particularidades estruturais, biológicas e funcionais da epiderme, derme e anexos cutâneos que diferenciam as peles clara e escura. Posteriormente, mostra algumas alterações fisiológicas comumente observadas na pele, nas unhas e nas mucosas dos indivíduos negros. Aponta, também, alguns padrões de reações e modificações da cor das lesões, decorrentes da hiperpigmentação cutânea, que determinam aspectos inusitados às dermatoses, dificultando seu reconhecimento. Finalmente, destaca algumas doenças em especial, enfatizando particularidades inerentes ao padrão das lesões e à freqüência de algumas dermatoses na pele negra. Nesse contexto, a intenção foi fornecer dados para auxiliar o dermatologista a se familiarizar com as diferentes nuanças que as doenças podem adquirir na pele mais pigmentada. Palavras-chave: Dermatopatias; Grupos étnicos; Grupos de populações continentais; Pigmentação da pele Abstract: This study approaches dermatology in dark skinned individuals. First, it discusses the concepts of race and ethnicity, as well as the classification criteria of the INTRODUÇÃOAs manifestações cutâneas da maioria das doenças são descritas em pacientes de pele clara, sendo poucas as publicações que as abordam na pele negra. Como o grau de pigmentação interfere sensivelmente na semiologia dermatológica, o reconhecimento das dermatoses nas peles mais escuras, mesmo aquelas mais comuns, pode ser um desafio na prática médica diária. Por isso, é necessário que o profissional se familiarize com as diferentes nuanças que as lesões podem adquirir na pele mais pigmentada. 1 RAÇAS E ETNIASO conceito relativo a "raças humanas" compreende as diferenças morfológicas entre os povos. Cada raça tem características particulares (cor da pele, tipo do cabelo, conformação cranial e facial, ancestralidade,

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“…7 Longer wavelengths improve penetration into the skin, with the most penetrating wavelengths in the range of 600 to 1200 nm. 8 Using a wavelength of 700 nm results in significant absorbtion by basal-layer melanin and inadvertent cutaneous damage during hair removal.…”

Section: Commentmentioning

confidence: 99%

“…9 This allows the follicle to be heated without affecting surrounding tissues. 7 The thermal relaxation time of the human hair follicle is estimated to be between 40 and 100 milliseconds. Epidermal melanin disruption is ameliorated by selecting pulse durations longer than the thermal relaxation time of the epidermis, estimated to be 3 to 10 milliseconds.…”

Section: Commentmentioning

confidence: 99%

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Use of an 800-nm Pulsed-Diode Laser in the Treatment of Recalcitrant Dissecting Cellulitis of the Scalp

Boyd¹

2002

Arch Dermatol

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Treatment of Pseudofolliculitis With a Pulsed Infrared Laser

Abstract: Background: Pseudofolliculitis barbae is a common disorder in individuals with thick, curly hairs, and treatment options are limited.Objective: To evaluate the effectiveness of a diode laser in the treatment of pseudofolliculitis barbae.

Cited by 43 publications

References 13 publications

Lasers and light-based therapies in ethnic skin: treatment options and recommendations for Fitzpatrick skin types V and VI

Lasers and light-based therapies in ethnic skin: treatment options and recommendations for Fitzpatrick skin types V and VI

Dermatologia na pele negra

Use of an 800-nm Pulsed-Diode Laser in the Treatment of Recalcitrant Dissecting Cellulitis of the Scalp

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