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Occupational asthma in nurses handling psyllium.

A Cartier, J L Malo, J Dolovich

    Clinical Allergy
    |January 1, 1987
    PubMed
    Summary
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    Occupational exposure to psyllium can cause asthma and allergic reactions in nurses. Careful dose-response evaluations are crucial during psyllium inhalation challenges to ensure patient safety.

    Area of Science:

    • Occupational Health
    • Allergology
    • Pulmonology

    Background:

    • Healthcare professionals may develop occupational asthma.
    • Psyllium, a common fiber supplement, has been implicated in allergic reactions.

    Purpose of the Study:

    • To investigate the link between occupational psyllium exposure and respiratory symptoms in nurses.
    • To characterize the immunological and physiological responses to psyllium in affected individuals.

    Main Methods:

    • Case study of five nurses with work-related asthmatic symptoms after psyllium exposure.
    • Allergy testing including skin prick tests and IgE antibody measurements.
    • Bronchial responsiveness testing with methacholine.
    • Controlled inhalation challenges with psyllium.

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    Main Results:

    • All five nurses reported asthmatic symptoms and rhinoconjunctivitis.
    • Four nurses showed immediate skin reactions to psyllium extract.
    • All nurses had IgE antibodies to psyllium.
    • Four nurses exhibited increased bronchial responsiveness to methacholine.
    • Psyllium inhalation provoked immediate or dual asthmatic reactions in four nurses, with one severe bronchospastic event requiring intubation.

    Conclusions:

    • Occupational exposure to psyllium can induce significant allergic respiratory responses, including asthma, in healthcare workers.
    • Diagnostic evaluation should include allergy testing and bronchial challenge studies.
    • Strict precautions and dose-controlled exposure are essential when handling psyllium in occupational settings.