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Photopatch testing in Bogota (Colombia): 2011-2013.
Valbuena Mesa, Martha C; Hoyos Jiménez, Elsa V.
Afiliação
  • Valbuena Mesa MC; Photodermatology Unit, Centro Dermatologico Federico Lleras Acosta (Colombian National Institute of Dermatology), 111511, Bogota D.C., Colombia.
  • Hoyos Jiménez EV; Photodermatology Unit, Centro Dermatologico Federico Lleras Acosta (Colombian National Institute of Dermatology), 111511, Bogota D.C., Colombia.
Contact Dermatitis ; 74(1): 11-7, 2016 Jan.
Article em En | MEDLINE | ID: mdl-26086895
BACKGROUND: Photopatch tests are used to diagnose photoallergic contact dermatitis and identify the causal agents. The frequencies of positive results and associated allergens vary by country; therefore, it is necessary to know the information specific to each country. OBJECTIVE: To establish the frequency of positive photopatch test results, and their relevance, in patients with suspected photoallergic contact dermatitis in a national dermatology centre located in Bogota, Colombia. MATERIALS AND METHODS: One hundred patients investigated for possible photoallergic contact dermatitis were enrolled in the study. They were photopatch tested with a selected group of allergens, and occluded for 48 hours; the duplicate right-hand panel was irradiated with 5 J/cm(2) ultraviolet (UV)A. The readings were performed on day (D)2, D4, and D6, in accordance with the guidelines of the ICDRG, and the relevance was evaluated with the COADEX system. RESULTS: There were a total of 20 photopatch reactions in 15 patients, 95% of which were caused by UV filters, most frequently benzophenone-3 (55%). Eight of the positive reactions (53.3%) appeared on D6. CONCLUSIONS: UV filters continue to be the most common causes of photoallergic contact dermatitis in our patients. Readings up to D6 (96 h after irradiation) are important to identify delayed positive reactions.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Testes do Emplastro / Dermatite Fotoalérgica Tipo de estudo: Etiology_studies / Guideline / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limite: Adolescent / Adult / Aged / Aged80 / Female / Humans / Male / Middle aged País/Região como assunto: America do sul / Colombia Idioma: En Revista: Contact Dermatitis Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Testes do Emplastro / Dermatite Fotoalérgica Tipo de estudo: Etiology_studies / Guideline / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limite: Adolescent / Adult / Aged / Aged80 / Female / Humans / Male / Middle aged País/Região como assunto: America do sul / Colombia Idioma: En Revista: Contact Dermatitis Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Reino Unido