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자료유형
학술저널
저자정보
Torres-Rojas Isabel (Allergy Unit Infanta Leonor University Hospital Madrid Spain.) Pérez-Alzate Diana (Allergy Unit Infanta Leonor University Hospital Madrid Spain.) Somoza Maria Luisa (Allergy Unit Infanta Leonor University Hospital Madrid Spain.) Pfeifer Ana Prieto-Moreno (Allergy Unit Infanta Leonor University Hospital Madrid Spain.) Diaz Elisa Haroun (Allergy Unit Infanta Leonor University Hospital Madrid Spain.) Jimenez-Rodriguez Teodorikez W (Allergy Unit Alicante General University Hospital-ISABIAL Alicante Spain.) Sánchez Javier Fernández (Allergy Unit Alicante General University Hospital-ISABIAL Alicante Spain.) Ruano Francisco J (Allergy Unit Infanta Leonor University Hospital Madrid Spain.) Blanca Miguel (Independent Investigator-Advisor Madrid Spain.) Blanca-López Natalia (Allergy Unit Infanta Leonor University Hospital Madrid Spain.)
저널정보
대한천식알레르기학회(구 대한알레르기학회) Allergy, Asthma & Immunology Research Allergy, Asthma & Immunology Research Vol.15 No.2
발행연도
2023.3
수록면
201 - 213 (13page)
DOI
10.4168/aair.2023.15.2.201

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Purpose: Clavulanate, a beta-lactam associated with amoxicillin, is frequently prescribed in patients at all ages. Recent data implicate amoxicillin-clavulanate in up to 80% of beta-lactam allergy cases. We assessed clavulanate’s role in inducing allergic reactions to this combination treatment, with a focus on selective immediate reactions. Methods: Adults (≥ 16 years) reporting a history of immediate reactions to amoxicillin-clavulanate were evaluated through a beta-lactam allergological workup, using modified European Academy of Allergy and Clinical Immunology guidelines. Patients first underwent skin testing, and if negative, drug provocation tests. Expected outcomes were: Group A, subjects with immediate reaction to classical penicillin group determinants (penicilloyl polylysine, minor determinants mixture, and/or penicillin G); Group B, subjects with selective immediate reaction to amoxicillin; Group C, subjects with selective immediate reaction to clavulanate and Group D, those immediate reactions with co-sensitization to clavulanate plus penicillin group determinants or amoxicillin. Results: Of 1,170 included patients, 104 had immediate reactions: 36.5% to penicillin group determinants (Group A), 26.9% to amoxicillin (Group B), 32.7% to clavulanate (Group C), and 3.8% to clavulanate plus penicillin determinants or amoxicillin (Group D). Diagnosis was made by skin testing in 79%, 75% and 47% of the patients, respectively, in the first 3 groups (P < 0.001). Drug provocation tests were necessary to establish most other diagnoses. Anaphylaxis predominated over urticaria/angioedema in all groups. Conclusions: Selective immediate reactions to clavulanate accounted for over a third of cases with confirmed reactions after amoxicillin-clavulanate intake, with more than half experiencing anaphylaxis. Within this group, skin test sensitivity was below 50%. People taking amoxicillin-clavulanate may also be co-sensitized to both drugs.

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