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KMID : 0191120170320122005
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Journal of Korean Medical Science
2017 Volume.32 No. 12 p.2005 ~ p.2008
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Clinical Evaluation of Techniques for Measuring Nasal-Specific Immunoglobulin E in Pediatric Patients
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Ahn Ji-Young
Hong Suk-Jin
Choi Bong-Seok
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Abstract
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Currently used methods for collecting nasal-specific immunoglobulin E (IgE) require administration of a large amount of saline into the nostrils, which is difficult in children. We designed two methods that are easy to use in children. We measured nasal-specific IgE and evaluated clinical characteristics of nasal-specific IgE in pediatric rhinitis. This study included 82 patients who visited Kyungpook National University Children's Hospital from December 2014 to July 2016 with rhinitis symptoms. Thirty patients used the spray method, and 52 patients used the swab method. We examined nasal-specific IgE to Dermatophagoides farinae, Dermatophagoides pteronyssinus, Alternaria, birch, and weed mix. Thirty patients had nasal-specific IgE concentrations of ≥ 0.35 kIU/L. There was a positive correlation between nasal-specific IgE and serum-specific IgE to D. farinae and D. pteronyssinus (r = 0.548, P < 0.001; r = 0.656, P < 0.001). If we regard positivity of skin prick test as standard, cutoff point of nasal-specific IgE to D. farinae was 0.11 kIU/L and to D. pteronyssinus was 0.12 kIU/L. Based on these cutoff points, five patients would be considered to have local allergic rhinitis. The methods showed relatively high positivity for nasal-specific IgE, which reflected the serum-specific IgE as well. These methods can be considered to diagnose local allergic rhinitis in children.
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KEYWORD
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Rhinitis, Immunoglobulin E, Child
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