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2022

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/227790

Risk factors in severe anaphylaxis: which matters the most, food or cofactors?

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https://doi.org/10.18176/jiaci.0698

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Background: The prevalence of anaphylactic shock, the most severe manifestation of anaphylaxis, remains unknown. Risk factors and biomarkers have not been fully identified. Objective: To identify risk factors in patients who experience anaphylactic shock. Methods: Using lipid transfer protein (LTP) allergy as a model, we compared the characteristics of patients who developed anaphylaxis and anaphylactic shock. We recorded demographics, pollen sensitization, foods ingested up to 2 hours before onset of the reaction, and the presence of cofactors. Culprit foods were identified through a compatible clinical history and positive allergology work-up (skin prick test and/or sIgE). Results: We evaluated 150 reactions in 55 patients with anaphylaxis (134 reactions) and 12 with anaphylactic shock (16 reactions). Patients in the anaphylaxis group experienced twice as many reactions (mean [SD], 2.4 [2.5] for anaphylaxis vs 1.3 [1.5] for anaphylactic shock; P<.02). No relationship was found between any food group and severity of the reaction. The most frequent food involved in both groups of patients was the combination of several plant-derived foods (plant food mix), followed by peach and nuts. Indeed, in the reactions caused by plant food mix, the presence of a cofactor was observed more often than in other food groups. On the other hand, cofactors were not present in peach- and nut-related reactions. Exercise was the most frequent cofactor in all groups. Conclusion: In our series, the severity of the reactions was not determined by the kind of food or presence of a cofactor. Anaphylactic shock seems to be an infrequent presentation that may be associated with other individual-related factors requiring further evaluation.

Matèries

Anafilaxi, Al·lèrgia alimentària

Matèries (anglès)

Anaphylaxis, Food allergy

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Articles publicats en revistes (Medicina)
Articles publicats en revistes (IDIBAPS: Institut d'investigacions Biomèdiques August Pi i Sunyer)

Citació

CASAS SAUCEDO, Rocio, CRUZ, Cinthia de la, ARAUJO SÁNCHEZ, Giovanna, GELIS, Sònia, JIMENEZ, T., RIGGIONI, S., SAN BARTOLOME, Clara, PASCAL I CAPDEVILA, Mariona, BARTRA TOMÀS, Joan, MUÑOZ-CANO, Rosa. Risk factors in severe anaphylaxis: which matters the most, food or cofactors?. _Journal of Investigational Allergology and Clinical Immunology_. 2022. Vol. 32, núm. 4, pàgs. 282-290. [consulta: 5 de març de 2026]. ISSN: 1018-9068. [Disponible a: https://hdl.handle.net/2445/227790]

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