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Bronchiolitis Obliterans Syndrome in Chemical Workers Producing Diacetyl for Food Flavorings

Published on Sep 1, 2007in American Journal of Respiratory and Critical Care Medicine16.49
· DOI :10.1164/rccm.200611-1620OC
Frits van Rooy3
Estimated H-index: 3
,
Jos Rooyackers8
Estimated H-index: 8
+ 3 AuthorsDick Heederik74
Estimated H-index: 74
Abstract
Rationale: Workers in microwave popcorn plants are at risk of developing bronchiolitis obliterans associated with exposure to butter flavoring volatiles, including diacetyl.Objectives: To investigate the risk of bronchiolitis obliterans for chemical workers producing diacetyl, with exposure to less complex mixtures of chemicals.Methods: We interviewed and conducted spirometry on 175 of 196 workers from a chemical production plant that produced diacetyl between 1960 and 2003. We used all available historical exposure data to classify all workers into three exposure groups with varying exposure profiles to diacetyl, based on frequency and level of exposure.Measurements and Main Results: Workers with fixed airway obstruction underwent further pulmonary function testing (including diffusing capacity and lung volumes) and paired inspiratory and expiratory high-resolution computed tomography studies. We identified three cases consistent with bronchiolitis obliterans syndrome with air trapping on high-resolution...
  • References (19)
  • Citations (97)
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