Sensitization to textile dyes in Spain: Epidemiological situation (2019-2022).
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Hernández Fernández Carlos Pelayo, Borrego Leopoldo, Giménez Arnau Ana María, Zaragoza Ninet Violeta, Sanz Sánchez Tatiana, Miquel Miquel Francisco Javier, González Pérez Ricardo, Silvestre Salvador Juan Francisco, Córdoba Guijarro Susana, Carrascosa Carrillo José Manuel, Gatica Ortega María Elena, Ruiz González Inmaculada, Mercader García Pedro, Tous Romero Fátima, Serra Baldrich Esther, Pastor-Nieto María Antonia, Rodríguez Serna Mercedes, Sánchez Pérez Javier, Sánchez Gilo Araceli, Melé Ninot Gemma, Sánchez-Pedreño Guillén Paloma, de Vega Martínez Marina, Descalzo Miguel Ángel Gallego, Doval Ignacio García
Аннотация
OBJECTIVES: To study the frequency, clinical features and simultaneous positivity between TDM, para-phenylenediamine (PPD) and specific disperse dyes.
MATERIALS AND METHODS: We analysed all consecutive patients patch-tested with TDM from the Spanish Contact Dermatitis Registry (REIDAC), from 1 January 2019 to 31 December 2022. Within this group, we studied all selected patients patch-tested with a textile dye series.
RESULTS: Out of 6128 patients analysed, 3.3% were positive to the TDM and in 34% of them, the sensitization was considered currently relevant. TDM positivity was associated with working as a hairdresser/beautician and scalp, neck/trunk and arm/forearm dermatitis. From TDM-positive patients, 57% were positive to PPD. One hundred and sixty-four patients were patch-tested with the textile dye series. Disperse Orange 3 was the most frequent positive dye (16%). One of every six cases positive to any dye from the textile dye series would have been missed if patch-tested with the TDM alone.
CONCLUSIONS: Positivity to TDM is common in Spain and often associated with PPD sensitization. TDM is a valuable marker of disperse dyes allergy that should be part of the Spanish and European standard series.