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What is the optimal duration for a ROAT? The experience of the French Dermatology and Allergology group (DAG).
- Source :
- Contact Dermatitis (01051873); Aug2022, Vol. 87 Issue 2, p170-175, 6p
- Publication Year :
- 2022
-
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]
- Subjects :
- CONTACT dermatitis
DERMATOLOGY
SKIN tests
LONGITUDINAL method
Subjects
Details
- Language :
- English
- ISSN :
- 01051873
- Volume :
- 87
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Contact Dermatitis (01051873)
- Publication Type :
- Academic Journal
- Accession number :
- 158011733
- Full Text :
- https://doi.org/10.1111/cod.14118