Diagnostic utility of skin autofluorescence when patch test results are doubtful.
Skin Res Technol
; 25(1): 96-99, 2019 Jan.
Article
em En
| MEDLINE
| ID: mdl-30055047
ABSTRACT
BACKGROUND:
The standard diagnostic test for allergic contact dermatitis is the patch test, which can also be used to identify irritant contact dermatitis. Doubtful reactions (?+) can be often clinically relevant to individuals and can require additional tests.OBJECTIVES:
The purpose of this study was to examine whether autofluorescence (AF) measurements in patients with doubtful reactions are helpful in diagnosing contact dermatitis.METHODS:
Patients with a history of contact dermatitis were patch tested on the upper back for 48-hours of occlusion using aqueous solutions of 5% sodium lauryl sulfate. Reaction intensity was scored, and AF was measured on reactive lesions and non-lesions. Three dermatologists classified the results as positive or negative using the fluorescence photographs of patients with a doubtful reaction.RESULTS:
Among doubtful reactions, the R/G% values were significantly higher in the AF- based positive group than in the negative group (P = .0086). On the other hand, the heterogeneity values of R, G, and B (HR, HG, HB) were significantly lower in the AF-based positive group (P = .0026, .0046, .0004 respectively).CONCLUSIONS:
Measuring AF along with the clinical readings can help confirm doubtful patch test reactions.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Testes do Emplastro
/
Dermatite Alérgica de Contato
/
Imagem Óptica
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Skin Res Technol
Assunto da revista:
DERMATOLOGIA
Ano de publicação:
2019
Tipo de documento:
Article