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Occupational asthma in hairdressers: results of inhalation tests with bleaching powder.

Author information

1
Abteilung für Pneumologie, Klinikum Grosshadern, University of Munich, Germany.

Abstract

STUDY OBJECTIVE:

To analyze the extent to which the clinical diagnosis of bleach-induced asthma can be confirmed by laboratory tests and to determine the role of work-related exposure to bleaching powder in a group of hairdressers with respiratory complaints.

METHODS:

The study population consisted of 55 female hairdressers who had regular contact with various hair products and a clinical history of job-related rhinitic and/or asthmatic symptoms. We divided the individuals into two groups: group I, with asthmatic symptoms (n = 38), and group II, without asthmatic symptoms (control group, n = 17). All subjects underwent immunological, pulmonary-function, and nonspecific bronchial provocation tests, and 46 study participants were subjected to a standardized bleaching-powder test in a designated chamber.

RESULTS:

There were 13 positive responses to bleaching powder in the skin test, and 32 individuals showed positive bronchial responsiveness to acetylcholine; positive responses to the challenge with bleaching powder occurred in 9 women (22% of those tested). None of the women in group II reacted to bleaching powder. There was no significant difference between persons with a positive or a negative bronchial provocation test with regard to the evaluated parameters.

CONCLUSIONS:

In the diagnostic workup of hairdressers with work-related respiratory symptoms, bleaching powder is one of the products that need to be tested. As not every patient with an asthmatic response to bleaching powder shows a positive response to the acetylcholine challenge test, in doubtful cases a specific exposure test may be recommendable.

PMID:
9439990
DOI:
10.1007/s004200050239
[Indexed for MEDLINE]

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