Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology
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Pine pollen has long been considered a non-allergenic pollen. The large size of the grain and its low levels of proteins are the main reasons invoked to explain this low allergenicity. The aim of this study was to describe the main allergenic bands of Pinus radiata (PR) and its cross-reactivity with other pine species, other conifers and grass pollen. ⋯ Pine pollen should be considered as a potential allergenic pollen especially where this pollen is abundant. The detection of a high number of patients that were monosensitized to pine pollen suggests the possibility of treating these patients with specific immunotherapy.
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One of the main reasons for hospital admission once a child has been stabilized following anaphylaxis is to monitor for a biphasic reaction. However, only a small percentage of anaphylactic episodes involve biphasic reactions that would benefit from admission. Identification of predictive factors for a biphasic reaction would assist in determining who may benefit from prolonged observation. ⋯ Children who received >1 dose of adrenaline and/or a fluid bolus for treatment of their primary anaphylactic reaction were at increased risk of developing a biphasic reaction.