Anaphylaxis following the ingestion of flour contaminated by house dust mites--a report of two cases from Singapore.
Tay, S Y; Yan, Tay Sok; Tham, E; Elizabeth, Tham; Yeo, C T; Tzien, Yeo Chor; Yi, F C; Cheng, Yi Fong; Chen, J Y; Jiayi, Chen; Cheong, N; Nge, Cheong; Chua, K Y; Yan, Chua Kaw; Lee, B W; Wah, Lee Bee.
Asian Pac J Allergy Immunol
; 2008 Jun-Sep; 26(2-3): 165-70
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en Inglés
| IMSEAR | ID: sea-36738
This study presents two patients who developed anaphylaxis after eating mite-contaminated food, and also contains a survey of dust-mites contamination in flour samples from Singapore households. The clinical records of each patient was studied. Patient A developed anaphylaxis twenty minutes following the ingestion of home-made fried fish coated with Japanese flour, while Patient B developed similar life-threatening symptoms one hour after the ingestion of home baked scones. Both patients were NSAID-intolerant and had a history of allergic rhinitis. Skin prick tests showed a strong positive result for dust-mites and for extracts prepared from the ingested flour. Flour samples were also examined microscopically which revealed large numbers of live Dermatophagoides farinae dust-mites. A survey of 57 flour samples showed that 4 samples (7%) were contaminated with dust mites. The findings in the present study confirm that mite-contamination of flour exists in Singaporean households, and it may trigger anaphylaxis in susceptible individuals.
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