Comparison of VIDAS Stallertest and Pharmacia CAP assays for detection of specific IgE antibodies in allergic children.
Sohn, MH; Lee, SY; Lee, KE; Kim, KE
Annals of clinical and laboratory science, 35(3):318-322, 2005
Annals of clinical and laboratory science
In vitro determination of specific IgE antibodies in serum is the most frequently used method, besides the skin test, for diagnosing allergies. Standardized and reproducible assays of specific IgE antibodies contribute to the quality of diagnosis and treatment of allergic disease. This study compared the results and performance characteristics of the Pharmacia CAP system and a new specific IgE method using the VIDAS Stallertest (manufactured by bioMériux). To evaluate their clinical efficiency, the results of the CAP and VIDAS Stallertest assays were compared with skin prick test (SPT) results. After allergic patients completed SPTs, serum samples were collected and CAP and VIDAS Stallertest assays were performed to determine specific IgEs for Dermatophagoides farinae, D. pteronyssinus, cockroach, and alternaria. For egg and milk, we measured only the correlation between the 2 in vitro assays. When SPT was used as a reference standard, the sensitivity and specificity of the CAP assay was a little higher in respect to all inhalant allergens. There were significant correlations between the results of VIDAS Stallertest and CAP assays for IgE antibodies to inhalant and food allergens. This study indicates that the VIDAS Stallertest and Pharmacia CAP assays are feasible and replicable for measuring allergen-specific IgE.
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