Nickel exposure from keys: a Brazilian issue
Nathalie Mie Suzuki1, Ida Alzira Gomes Duarte1,2, Mariana de Figueiredo Silva Hafner1
1Dermatology Clinic of the Santa Casa de São Paulo - São Paulo (SP), Brazil.
Abstract:
Keys are a significant source of exposure to metal allergens and can be a relevant problem for nickel-allergic individuals. This study aimed to perform nickel and cobalt spot testing among the 5 most common Brazilian brands of keys. Among the tested keys, 100% showed positive result to nickel spot test, 83,3% presented strong positive reaction. 50% exhibited cobalt release as well. Nickel release from keys is very common in our country and may cause a negative impact on sensitized individual's quality of life. Study's results highlight the importance of establishing directives to regulate nickel release in Brazil.
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