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Brockow, K. ; Jofer, C.* ; Behrendt, H. ; Ring, J.

Anaphylaxis in patients with mastocytosis: A study on history, clinical features and risk factors in 120 patients.

Allergy 63, 226-232 (2008)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
Excessive mast cell mediator release may lead to anaphylaxis in patients with mastocytosis. However, the incidence, clinical features and trigger factors have not yet been analyzed. METHODS: To identify risk factors for anaphylaxis in mastocytosis, we determined cumulative incidence, severity, clinical characteristics, and trigger factors for anaphylaxis in 120 consecutive patients (53 male; 67 female, median age and range 24 years, 1 month to 73 years), and correlated these with disease severity of mastocytosis, skin involvement, basal total serum tryptase, and diaminooxidase concentrations. RESULTS: The cumulative incidence of anaphylaxis in patients with mastocytosis was higher in adults (49%; P < 0.01) compared with that in children (9%). Only children with extensive skin involvement had experienced anaphylaxis. In adults, anaphylaxis was correlated to the absence of urticaria pigmentosa lesions (P < 0.03). Reactions occurred more frequently in adults with systemic (56%) when compared with cutaneous mastocytosis (13%; P < 0.02). In adults, 48% of reactions were severe, and 38% resulted in unconsciousness. Major perceived trigger factors for adults were hymenoptera stings (19%), foods (16%), and medication (9%); however, in 26% of reactions, only a combination of different triggers preceded anaphylaxis. Trigger factors remained unidentified in 67% of reactions in children compared with 13% in adults. Patients with anaphylaxis had higher basal tryptase values (60.2 +/- 55 ng/ml, P < 0.0001) in comparison with those without (21.2 +/- 33 ng/ml), but not diaminooxidase levels. CONCLUSION: Adult patients and children with extensive skin disease with mastocytosis have an increased risk to develop severe anaphylaxis; thus, an emergency set of medication including epinephrine is recommended.
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Publication type Article: Journal article
Document type Scientific Article
Keywords anaphylaxis; mastocytosis; risk factors; severity; trigger factors
ISSN (print) / ISBN 0105-4538
e-ISSN 1398-9995
Journal Allergy
Quellenangaben Volume: 63, Issue: 2, Pages: 226-232 Article Number: , Supplement: ,
Publisher Wiley
Reviewing status Peer reviewed
Institute(s) CCG Environmental Dermatology and Allergology (ILBD-KAU)
Institute of Epidemiology (EPI)