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TDI-induced oculorhinitis and bronchial asthma.
Journal of Occupational Medicine. : Official Publication of the Industrial Medical Association
|January 1, 1985
Summary
Toluene diisocyanate (TDI) can cause allergic oculorhinitis and later bronchial asthma. This IgE-mediated immune response highlights TDI
Area of Science:
- Occupational Health
- Immunology
- Respiratory Medicine
Background:
- Toluene diisocyanate (TDI) is a chemical used in polyurethane production.
- Occupational exposure to TDI can lead to respiratory sensitization.
- Allergic oculorhinitis and bronchial asthma are common occupational health concerns.
Observation:
- A 55-year-old spray painter experienced oculorhinitis after TDI exposure.
- Initially, no bronchial hyperresponsiveness was detected.
- Two years later, the patient developed asthma symptoms and persistent oculorhinitis following TDI exposure.
Findings:
- Specific IgE antibodies to TDI-HSA conjugate were present.
- A slight immediate-type response to TDI and polyurethane varnish was observed in bronchial provocative tests.
- Mild nonspecific bronchial hyperresponsiveness was noted.
Implications:
- TDI exposure can lead to both allergic oculorhinitis and bronchial asthma.
- An IgE-mediated immunological mechanism is likely involved.
- This case underscores the importance of recognizing TDI as a potential allergen in occupational settings.