Clinical and Experimental Pediatrics

The Korean Pediatric Society (대한소아청소년과학회)
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Clinical and laboratory findings of childhood buckwheat allergy in a single tertiary hospital

  • Park, Kyujung (Department of Pediatrics, Ajou University School of Medicine) ;
  • Jeong, Kyunguk (Department of Pediatrics, Ajou University School of Medicine) ;
  • Lee, Sooyoung (Department of Pediatrics, Ajou University School of Medicine)
  • Received : 2016.05.24
  • Accepted : 2016.08.25
  • Published : 2016.10.15
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Abstract

Purpose: Buckwheat allergy is one of the most severe types of food allergy in some countries, especially among children. However, few studies have investigated this condition. The aim of this study was to report the clinical and laboratory findings in Korean children with buckwheat allergy. Methods: Thirty-seven subjects, aged 1 to 14 years, were enrolled by retrospective medical record review from January 2000 through May 2015 at the Department of Pediatrics in Ajou University Hospital. The demographic profile, previous exposure to buckwheat pillows, clinical symptoms, and laboratory findings of each subject were recorded. Results: Twenty-six of the 37 children had immediate-type allergic symptoms to buckwheat, while 11 subjects were tolerant to buckwheat. Seventeen out of 26 buckwheat allergic children (65.4%) had anaphylaxis. The median buckwheat specific IgE level in the buckwheat allergic group ($7.71kU_A/L$) was significantly higher (P<0.001) than in the buckwheat tolerant group ($0.08kU_A/L$) with an optimal cutoff value of $1.27kU_A/L$ (sensitivity 84.6%, specificity 100%). When adjusted for age, the difference between the 2 groups showed no statistical significance (P=0.063). In subjects who had anaphylaxis, buckwheat-specific IgE levels ranged from 0.37 to $100kU_A/L$. Conclusion: Almost two-thirds of buckwheat-allergic children had anaphylaxis, and a wide-range of buckwheat specific IgE levels were observed in these children. Anaphylaxis occurred in a subject with a remarkably low IgE level ($0.37kU_A/L$).

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References

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