Investigating the Changes in Venom-Specific IgE Induced by Wasp Venom Immunotherapy
نویسندگان
چکیده
Patients with systemic reactions (SR) to Hymenoptera stings are successfully treated by venom immunotherapy (VIT), but there is not yet a general agreement on the criteria for stopping VIT. We discuss the importance of the venom-specific IgE levels among these criteria. In particular, the results from a recent study evaluating the IgE changes during a 5-year VIT, in patients stung and protected within the first 3 years (SP 0-3) or in the last 2 years (SP 3-5), and in patients not stung (NS) are considered. A total of 232 yellow jacket venom (YJV) allergic patients were included and divided into the following groups: 84 NS, 72 SP 0-3 and 76 SP 3-5. IgE levels decreased during VIT compared to baseline values (χ2=346.029, p<0.001). Recent vespid stings accounted for significantly higher IgE levels despite clinical protection. IgE levels after 5 years of VIT correlated significantly with Mueller grade (F=2.778, p=0.012) and age (F=6.672, p=0.002). More than one third of the contacted patients had at least one tolerated sting during a prolonged follow-up (up to 10 years) after stopping VIT. The stopping criterion of a duration of 5 years resulted in a decrease of IgE levels ranging from 58% to 70%, but no negative level was detected. This confirms the adequacy of the temporal criterion compared to the immunological criterion of developing negative IgE tests to decide for stopping VIT for vespid venom.
منابع مشابه
Immunotherapy with wasp venom is accompanied by wide-ranging immune responses that need further exploration.
Immunotherapy with wasp allergen leads to a variety of specific immunological changes. It is unknown, however, whether unspecific effects also occur, and which parameter shifts might indicate treatment success. Therefore, data of patients who had completed immunotherapy with wasp venom were analysed retrospectively for a change in the following parameters after therapy: threshold of skin tests ...
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BACKGROUND Venom immunotherapy (VIT) is an effective treatment for subjects with systemic allergic reactions (SR) to Hymenoptera stings, however there are few studies concerning the relevance of the venom specific IgE changes to decide about VIT cessation. We assessed IgE changes during a 5-year VIT, in patients stung and protected within the first 3 years (SP 0-3) or in the last 2 years (SP 3-...
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