Persistence of positive skin test 25 years after a penicillin-induced anaphylaxis
نویسندگان
چکیده
Background Skin tests are important in the investigation of hypersensitivity drug reactions (HDR), particularly when betalactams are involved. However, the sensitivity decreases with time. It has been described that skin tests become negative about five years after a betalactam hypersensitivity reaction. We report a patient with persistence of a positive skin test twenty five years after an anaphylactic reaction due to penicillin.
منابع مشابه
Skin testing in patients with high risk of anaphylactic reactions to penicillin.
Sequential skin testing including immediate patch test (IPT), skin prick test (SPT), and intradermal test (IT) with sodium benzylpenicillin G (Pen G), and SPT with benzylpenicilloyl human serum albumin (BPO-HSA) was done in 58 subjects with a history of probable anaphylactic reaction or shock of unknown cause. Based on positive skin tests, the diagnosis of penicillin anaphylaxis was confirmed i...
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متن کاملPenicillin allergy: anti-penicillin IgE antibodies and immediate hypersensitivity skin reactions employing major and minor determinants of penicillin.
300 children considered to have had adverse reactions to penicillin were examined. Informed consent was obtained from the parents. Skin tests were conducted by the scratch/prick and intradermal techniques, using benzylpenicilloyl polylysine conjugate and a mixture of minor determinants of penicillin. Specific anti-penicillin IgE antibodies were estimated by the radioallergosorbent test. There w...
متن کاملPenicillin allergy: anti-penicillin IgE antibodies and immediate hypersensitivity skin reactions employing
300 children considered to have had adverse reactions to penicillin were examined. Informed consent was obtained from the parents. Skin tests were conducted by the scratch/prick and intradermal techniques, using benzylpenicilloyl polylysine conjugate and a mixture of minor determinants of penicillin. Specific anti-penicillin IgE antibodies were estimated by the radioallergosorbent test. There w...
متن کاملPenicillin allergy: anti-penicillin IgE antibodies and immediate hypersensitivity skin reactions employing
300 children considered to have had adverse reactions to penicillin were examined. Informed consent was obtained from the parents. Skin tests were conducted by the scratch/prick and intradermal techniques, using benzylpenicilloyl polylysine conjugate and a mixture of minor determinants of penicillin. Specific anti-penicillin IgE antibodies were estimated by the radioallergosorbent test. There w...
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