Occupational Asthma Reference

AKIHIRO T, KUNIHIKO I, TAKAHIRO T, HARUMI N, NAOKI M, TOMONORI H, MOTOYOSHI S, SHUNSUKE S, YOSHIAKI I, Acute Lung Injury Caused by Inhalation of Waterproofing Spray, Journal of the Japanese Respiratory Society, 2003;41:123-126,

Keywords: toxic pneumonitis, single exposure, CT, ground glass,smoker,TBB, case report, waterproof

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A 55-year-old man was admitted to our hospital because of severe dyspnea 30 minutes after inhalation of waterproofing spray. He had used the spray outdoors and had then smoked a cigarette with spray-contaminated fingers. Chest radiography and computed tomography (CT) revealed diffuse ground glass opacities in both lungs. In pulmonary function tests, the lungs showed a moderately decreased diffusing capacity and there was slight hypoxemia. Transbronchial lung biopsy specimens demonstrated extensive alveolitis and marked eosinophil migration. Without any specific treatment, the patient recovered clinically in 4 days. We speculated that acute lung injury in this patient may have been induced by not only direct inhalation of the waterproofing spray itself, but also by inhalation of spray by-products resulting from decomposition due to heat. When waterproofing spray is used, precautions should be taken to avoid both inhalation and heating of the fumes

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