학술논문
What is the optimal duration for a ROAT? The experience of the French Dermatology and Allergology group (DAG).
Document Type
Article
Author
Amsler, Emmanuelle; Assier, Haudrey; Soria, Angèle; Bara, Corina; Ferrier le Bouëdec, Marie Christine; Barbaud, Annick; Milpied, Brigitte; Giordano‐Labadie, Françoise; Pasteur, Justine; Badaoui, Antoine; Valois, Aude; Castelain, Florence; Kurihara, Flore; Castagna, Julie; Boulard, Claire; Bernier, Claire; Leleu, Camille; Marcant, Pierre; Crépy, Marie Noelle; Tetart, Florence
Source
Subject
*CONTACT dermatitis
*DERMATOLOGY
*SKIN tests
*LONGITUDINAL method
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Language
ISSN
0105-1873
Abstract
Background and Objectives: The repeated open application test (ROAT) is an adjuvant investigation measure to patch testing in the diagnosis of allergic contact dermatitis. ESCD recommends a 15 days duration but its overall duration varies according to publications and patients hardly adhere to prolonged ROAT duration beyond 1 week. Materials and Methods: The Dermatology and Allergy Group of the French Society of Dermatology performed a prospective study with the aim of determining the best duration for the ROAT. Results: A total of 328 ROAT results were collected for topical products, including cosmetics (60%) and topical medications (31.1%). Fifty‐nine (18%) ROATs were positive, and 16 (5%) were doubtful. All the positive ROATs occurred within 10 days, with a median time to positivity of 3 days. Conclusion: According to our results, a minimum duration of 10 days is necessary to achieve a positive ROAT to a topical product. [ABSTRACT FROM AUTHOR]