Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2013
Role of specific IgE in predicting the clinical course of lentil allergy in children.
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Yavuz Suleyman T, Sahiner Umit M, Buyuktiryaki Betul, Tuncer Ayfer, Yilmaz Ebru A, Cavkaytar Ozlem, Karabulut Erdem, Sackesen Cansin
Аннотация
BACKGROUND: Legumes, and particularly lentils, are frequently consumed in Mediterranean, Middle Eastern, and some Asian countries. The aim of this study was to document the demographic features of children with lentil allergy and to determine the role of specific IgE (sIgE) in predicting the risk of clinical reactivity and disease persistence.
METHODS: Thirty children were enrolled. The diagnosis of lentil allergy was based on convincing history of symptoms or anaphylaxis after the ingestion of lentils, with positive skin tests and/or sIgE to lentils. To determine the diagnosis and prognosis of lentil allergy, 24 children were evaluated with food challenges.
RESULTS: The median age at the onset of symptoms was 1.5 yr (0.9-2.3) (inter-quartile range). The most frequent symptoms were immediate cutaneous (97%) and respiratory (30%) reactions, whereas eight patients (27%) reported anaphylactic reactions. The median level of lentil sIgE at the time of diagnosis was 3 kU/l (1.2-9.6). Of the 24 challenges, 12 were positive. Fifteen patients (50%) outgrew the lentil allergy by the age of 3.5 (2.5-11) years. Children with an initial lentil sIgE < 4.9 kU/l had a significantly higher likelihood (68.4% vs. 18.2%) of outgrowing the lentil allergy than children with an initial lentil sIgE ≥ 4.9 k/l (p = 0.008).
CONCLUSIONS: Our results suggest that sIgE levels may be important for predicting clinical reactivity and persistence of lentil allergy.
METHODS: Thirty children were enrolled. The diagnosis of lentil allergy was based on convincing history of symptoms or anaphylaxis after the ingestion of lentils, with positive skin tests and/or sIgE to lentils. To determine the diagnosis and prognosis of lentil allergy, 24 children were evaluated with food challenges.
RESULTS: The median age at the onset of symptoms was 1.5 yr (0.9-2.3) (inter-quartile range). The most frequent symptoms were immediate cutaneous (97%) and respiratory (30%) reactions, whereas eight patients (27%) reported anaphylactic reactions. The median level of lentil sIgE at the time of diagnosis was 3 kU/l (1.2-9.6). Of the 24 challenges, 12 were positive. Fifteen patients (50%) outgrew the lentil allergy by the age of 3.5 (2.5-11) years. Children with an initial lentil sIgE < 4.9 kU/l had a significantly higher likelihood (68.4% vs. 18.2%) of outgrowing the lentil allergy than children with an initial lentil sIgE ≥ 4.9 k/l (p = 0.008).
CONCLUSIONS: Our results suggest that sIgE levels may be important for predicting clinical reactivity and persistence of lentil allergy.