Document Detail


Predictors of severe systemic anaphylactic reactions in patients with Hymenoptera venom allergy: importance of baseline serum tryptase-a study of the European Academy of Allergology and Clinical Immunology Interest Group on Insect Venom Hypersensitivity.
MedLine Citation:
PMID:  19895993     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Severe anaphylaxis to honeybee or vespid stings is associated with a variety of risk factors, which are poorly defined. OBJECTIVE: Our aim was to evaluate the association of baseline serum tryptase concentrations and other variables routinely recorded during patient evaluation with the frequency of past severe anaphylaxis after a field sting. METHODS: In this observational multicenter study, we enrolled 962 patients with established bee or vespid venom allergy who had a systemic reaction after a field sting. Data were collected on tryptase concentration, age, sex, culprit insect, cardiovascular medication, and the number of preceding minor systemic reactions before the index field sting. A severe reaction was defined as anaphylactic shock, loss of consciousness, or cardiopulmonary arrest. The index sting was defined as the hitherto first, most severe systemic field-sting reaction. Relative rates were calculated with generalized additive models. RESULTS: Two hundred six (21.4%) patients had a severe anaphylactic reaction after a field sting. The frequency of this event increased significantly with higher tryptase concentrations (nonlinear association). Other factors significantly associated with severe reactions after a field sting were vespid venom allergy, older age, male sex, angiotensin-converting enzyme inhibitor medication, and 1 or more preceding field stings with a less severe systemic reaction. CONCLUSION: In patients with honeybee or vespid venom allergy, baseline serum tryptase concentrations are associated with the risk for severe anaphylactic reactions. Preventive measures should include substitution of angiotensin-converting enzyme inhibitors.
Authors:
Franziska Ru?ff; Bernhard Przybilla; Maria Beatrice Bil?; Ulrich M?ller; Fabian Scheipl; Werner Aberer; Jo?lle Birnbaum; Anna Bodzenta-Lukaszyk; Floriano Bonifazi; Christoph Bucher; Paolo Campi; Ulf Darsow; Cornelia Egger; Gabrielle Haeberli; Thomas Hawranek; Michael K?rner; Iwona Kucharewicz; Helmut K?chenhoff; Roland Lang; Oliviero Quercia; Norbert Reider; Maurizio Severino; Michael Sticherling; Gunter Johannes Sturm; Brunello W?thrich
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Publication Detail:
Type:  Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of allergy and clinical immunology     Volume:  124     ISSN:  1097-6825     ISO Abbreviation:  J. Allergy Clin. Immunol.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-09     Completed Date:  2009-11-24     Revised Date:  2010-05-10    
Medline Journal Info:
Nlm Unique ID:  1275002     Medline TA:  J Allergy Clin Immunol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1047-54     Citation Subset:  AIM; IM    
Affiliation:
Department of Dermatology and Allergology, Ludwig-Maximilians-Universit?t, Munich, Germany. Franziska.Rueff@med.uni-muenchen.de
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MeSH Terms
Descriptor/Qualifier:
Adult
Anaphylaxis / blood,  enzymology,  epidemiology*
Animals
Bee Venoms / immunology*
Cohort Studies
Female
Humans
Hypersensitivity / immunology*
Insect Bites and Stings / immunology*
Male
Middle Aged
Prognosis
Prospective Studies
Retrospective Studies
Tryptases / blood*
Wasps / immunology*
Chemical
Reg. No./Substance:
0/Bee Venoms; EC 3.4.21.59/Tryptases
Comments/Corrections
Comment In:
J Allergy Clin Immunol. 2010 May;125(5):1171; author reply 1171-2   [PMID:  20347124 ]

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