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  Authority of Polish Society of Allergology

vol 15. no 3. September 2010  

 Original articles
Is seafood dangerous for Silesian population?
Barbara Rymarczyk, Joanna Glück, Barbara Rogala

Introduction. The increasing consumption of fish observed in recent
years may lead to growing frequency of fish and/or seafood allergy.
Aim. Assessment of the role of fish and/or seafood in food hypersensitivity,
clinical characteristic of patients suffering from seafood
Material and methods. 238 subjects (146 women, 92 men, mean
age 40,95±13,31 yrs) with self-reported hypersensitivity reactions
after fish and/or seafood ingestion were enrolled into the study. All of
them completed a questionnaire concerning detailed medical history,
clinical symptoms and nutritional habits. Skin prick tests with food
allergens including fish and seafood allergens were performed. Allergen-
specific IgE serum levels against food allergens were assessed.
Results. The following cases of fish/seafood hypersensitivity reactions
(n=18; 7,56%) were reported: generalized urticaria (n=9;
50%), anaphylaxis (n=4; 22,22%), angioedema (n=2; 11,11%),
gastrointestinal disturbances (n=2; 11,11%), oral allergy syndrome
(OAS) (n=1; 5,56%). 22,2% (n=4) reported fish/seafood as the only
eliciting factor. 50% symptoms of hypersensitivity reactions (n=9)
began during the first hour after the ingestion of the offending
food, less frequently in the first 12 hours (n=7; 38,89%). Only in
2 cases (11,11%) the symptoms occurred after 12 hours. Eight patients
(44,44%) had a positive family history of atopy. Serum levels of
allergic specific IgE against fish and/or seafood reached class 2 (0,7-
3,5 kU/l) in 3 patients (16,7%).
Conclusion. The relatively low consumption of fish and/or seafood in
Upper Silesia population results in a low frequency of hypersensitivity
reactions. The majority of reactions occur in a short time after ingestion.
Searching for trigger factors of anaphylaxis the seafood must
always be taken into account.

keywords: alergia pokarmowa, owoce morza, alergia na mięso ryb, food allergy, seafood, fish allergy

pages: from 139 to 143

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