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Medicina y Seguridad del Trabajo

versión On-line ISSN 1989-7790versión impresa ISSN 0465-546X


PAREDES RIZO, Mª Luisa. Multiple Chemical Sensitivity: analysis of a case registered in a reference hospital. Med. segur. trab. [online]. 2018, vol.64, n.251, pp.217-240. ISSN 1989-7790.


Pollution and exposure to chemical products has conditioned an increase in the prevalence of chronic diseases not only explained by genetics or individual susceptibility. The Multiple Chemical Sensitivity (MCS) is an example of these conditions. It is an acquired, chronic disorder identified by recurrent symptoms in response to exposure to chemical compounds at concentrations that are not considered toxic for the general population. Its etiology is uncertain and multifactorial; its diagnosis is clinical and must be multidisciplinary approached. It is sometimes linked to occupational exposure, being unpredictable most of the times due to the diversity of the categories that may trigger it.


The purpose of this work is to provide a general overview of this pathology with the aim of analize the situation derived from this condition reviewing a case of MCS.


Literature review of the MCS through the search of scientific literature in the month of September 2017 using the terms Mesh «Multiple Chemical Sensitivity». A clinical case with a MCS diagnosis linked to an occupational exposure is presented and the consequences of the condition are analyzed.


The clinical case of a 45-year-old female laboratory technician in a reference hospital is described. After the diagnosis of bronchial hyperreactivity, probably related to certain reagents exposure, she begins a period of temporary disability with adaptations, changes in workplace and several valuations by specialized doctors ending with the diagnosis of MCS. The analysis of the medical assessment report and administrative record highlights the difficulty to assess this type of pathologies.


The peculiarities of MCS in terms of etiology, diagnosis and treatment make it necessary to individualize each single case. The subjectivity surrounding the SQM makes it a very difficult condition to assess. One of the great challenges nowadays is to continue researching to facilitate the multidisciplinary approach that this ailment requires.

Palabras clave : «Multiple Chemical Sensitivity»; Multiple chemical syndrome.

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