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Francuzik, Wojciech; Ruëff, Franziska; Bauer, Andrea; Bilò, Maria Beatrice; Cardona, Victoria; Christoff, George; Dölle-Bierke, Sabine; Ensina, Luis; Fernández Rivas, Montserrat; Hawranek, Thomas; O'B Hourihane, Jonathan; Jakob, Thilo; Papadopoulos, Nicos G.; Pföhler, Claudia; Poziomkowska-Gęsicka, Iwona; Van der Brempt, Xavier; Scherer Hofmeier, Kathrin; Treudler, Regina; Wagner, Nicola; Wedi, Bettina; Worm, Margitta
Journal of allergy and clinical immunology, 02/2021, Volume: 147, Issue: 2Journal Article
Venom-induced anaphylaxis (VIA) is a common, potentially life-threatening hypersensitivity reaction associated with (1) a specific symptom profile, 2) specific cofactors, and 3) specific management. Identifying the differences in phenotypes of anaphylaxis is crucial for future management guidelines and development of a personalized medicine approach. This study aimed to evaluate the phenotype and risk factors of VIA. Using data from the European Anaphylaxis Registry (12,874 cases), we identified 3,612 patients with VIA and analyzed their cases in comparison with sex- and age-matched anaphylaxis cases triggered by other elicitors (non-VIA cases n = 3,605). VIA more frequently involved more than 3 organ systems and was associated with cardiovascular symptoms. The absence of skin symptoms during anaphylaxis was correlated with baseline serum tryptase level and was associated with an increased risk of a severe reaction. Intramuscular or intravenous epinephrine was administered significantly less often in VIA, in particular, in patients without a history of anaphylaxis. A baseline serum tryptase level within the upper normal range (8-11.5 ng/mL) was more frequently associated with severe anaphylaxis. Using a large cohort of VIA cases, we have validated that patients with intermediate baseline serum tryptase levels (8-11 ng/mL) and without skin involvement have a higher risk of severe VIA. Patients receiving β-blockers or angiotensin-converting enzyme inhibitors had a higher risk of developing severe cardiovascular symptoms (including cardiac arrest) in VIA and non-VIA cases. Patients experiencing VIA received epinephrine less frequently than did cases with non-VIA.
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