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Klingebiel C, Belhocine W, Vitte J. Serum tryptase and drug hypersensitivity: why, how and what? A systematic review. Curr Opin Allergy Clin Immunol 2023; 23:294-299. [PMID: 37357783 DOI: 10.1097/aci.0000000000000916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
PURPOSE OF REVIEW Serum tryptase, a mast cell marker, provides clues for the mechanism, severity, and management of drug hypersensitivity induced by immunoglobulin E dependent or independent mast cell activation. RECENT FINDINGS The interpretation of serum tryptase levels has been challenged during the last 2 years by major advances in tryptase genetics and their rapid incorporation into clinical practice. On the contrary, new pathophysiological insight into nonmast cell-dependent immediate hypersensitivity has been gained. SUMMARY This review provides up-to-date information on the pathophysiology and recommended use and interpretation of tryptase in the context of drug hypersensitivity reactions as a function of their endotype.
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Affiliation(s)
| | | | - Joana Vitte
- University of Montpellier, IDESP, INSERM UMR UA 11, Montpellier
- Aix-Marseille Univ, IRD, APHM, MEPHI
- IHU Méditerranée Infection, Marseille, France
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Lendal V, Fransson S, Mosbech H, Boel JB, Kahlhofen N, Blom LH, Poulsen LK, Garvey LH. Specific IgE to penicillin minor determinants in patients with suspected penicillin allergy. Clin Exp Allergy 2023; 53:887-890. [PMID: 37246578 DOI: 10.1111/cea.14333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 04/13/2023] [Accepted: 04/28/2023] [Indexed: 05/30/2023]
Affiliation(s)
- Victor Lendal
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Sara Fransson
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Holger Mosbech
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Jonas Bredtoft Boel
- Department of Clinical Microbiology, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Natasha Kahlhofen
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Lars H Blom
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Lars K Poulsen
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Lene H Garvey
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Schrüfer P, Stoevesandt J, Trautmann A. Outcome of a de-labelling algorithm compared with results of penicillin (β-lactam) allergy testing. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2022; 18:26. [PMID: 35317861 PMCID: PMC8941741 DOI: 10.1186/s13223-022-00659-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 02/21/2022] [Indexed: 12/12/2022]
Abstract
Background Penicillin allergy labels frequently impede guideline-directed treatment with a penicillin or other β-lactam antibiotics. Despite presumed allergy, targeted questioning may indicate a low probability of sensitization and permit reasonably safe administration of the antibiotic in question. In this study, we evaluated a standardized algorithm aiming to differentiate non-allergic patients from those with true allergic β-lactam hypersensitivity. Methods We retrospectively applied a de-labelling algorithm in 800 consecutive patients with suspected β-lactam hypersensitivity. All had undergone complete allergy work-up permitting to definitely exclude or diagnose β-lactam allergy between 2009 and 2019. Results In 595 (74.4%) out of 800 cases evaluated, β-lactam allergy could be excluded by negative challenge testing. IgE-mediated anaphylaxis was diagnosed in 70 (8.7%) patients, delayed-type hypersensitivity in 135 (16.9%). In 62 (88.6%) anaphylaxis cases, the algorithm correctly advised to use an alternative antibiotic. Accuracy was higher in patients with moderate to severe anaphylaxis (97.7%) compared to those with a history of mild reactions (73.1%). The algorithm correctly identified 122 (90.4%) patients with proven delayed-type hypersensitivity. It permitted de-labelling in 330 (55.5%) out of 595 patients with diagnostic exclusion of penicillin hypersensitivity, but failed to identify the remaining 265 (44.5%) as low-risk cases. Conclusions The algorithm detected 89.8% of cases with penicillin (β-lactam) allergy, sensitivity was optimal for moderate to severe anaphylaxis. Study data justify the implementation of a standardized de-labelling algorithm under close supervision in order to permit guideline-directed treatment and reduce the use of broad-spectrum antibiotics as part of an antibiotic stewardship program. Supplementary Information The online version contains supplementary material available at 10.1186/s13223-022-00659-1.
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Affiliation(s)
- Philipp Schrüfer
- Department of Dermatology and Allergy, Allergy Center Mainfranken, University Hospital Würzburg, 97080, Würzburg, Germany
| | - Johanna Stoevesandt
- Department of Dermatology and Allergy, Allergy Center Mainfranken, University Hospital Würzburg, 97080, Würzburg, Germany
| | - Axel Trautmann
- Department of Dermatology and Allergy, Allergy Center Mainfranken, University Hospital Würzburg, 97080, Würzburg, Germany.
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Joerg L, Hasler S, Gschwend A, Meincke C, Nordmann TM, Glatz M, Heilig M, Schnyder B, Helbling A, Schmid-Grendelmeier P. 75% negative skin test results in patients with suspected hypersensitivity to beta-lactam antibiotics: Influencing factors and interpretation of test results. World Allergy Organ J 2021; 14:100602. [PMID: 34820050 PMCID: PMC8585645 DOI: 10.1016/j.waojou.2021.100602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 09/14/2021] [Accepted: 10/05/2021] [Indexed: 12/25/2022] Open
Abstract
Background The diagnostic approach for beta-lactam (BL) drug hypersensitivity reactions (DHR) is based on the history, clinical signs, skin tests (ST), in vitro tests, and drug provocation tests (DPT). The aim of this study was to assess the performance of an allergy workup with ST in a real-world use. Methods In this cross-sectional study the rate of positive ST in subjects with suspected DHR to penicillins and cephalosporins was investigated. Of special interest were correlations of ST positivity: 1) to the time intervals between index reaction and the allergic work-up, 2) time interval from drug exposure to the onset of signs, 3) pattern of manifestation in delayed DHR and involvement of test area in the index reaction, and 4) potential advantage of patch testing in delayed DHR. Results 175 patients were included between January 2018 and April 2019 (63.4% female), 45 (25.7%) with immediate DHR manifestation and 130 with delayed DHR manifestation (74.3%). A total of 44 patients (25.1%) had a positive ST (immediate DHR 37.8% versus 20.0% in delayed DHR). ST positivity decreased in both groups after 3 years from 47.8% [95%CI 29.2-67] to 23.5% [95%CI 9.6-47.3] in immediate DHR and 23.0% [95%CI 15-4-32.9] to 12.9% [95%CI 5.1-28.9] in delayed DHR. The proportion of positive ST was higher in patients with more severe forms of delayed DHR, and in subjects with a shorter latency period of onset of symptoms after drug exposure: 0-3d: 29.5% [95%CI 19.6-41.9] vs. >3d: 11.6% [95%CI 6.0-21.2]). No sensitization was shown in delayed urticaria or angioedema. ST done outside the skin area involved during the index reaction were negative in all cases (0/38 vs. 26/84 in cases with involved area). The combination of patch test and intradermal test (IDT) revealed an additional positive result in 2/77 cases. Additional in vitro testing reduced the proportion of negative test results to 72%. Conclusion In most patients with negative test results, we could not clarify the cause of the BL-associated adverse events even with further investigations (including DPT). How to prevent new drug-induced adverse events in such patients has hardly been investigated yet. Corresponding cohort studies could improve the data situation.
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Affiliation(s)
- Lukas Joerg
- Allergy Unit, Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland.,Division of Allergology and Clinical Immunology, Department of Pneumology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Susann Hasler
- Allergy Unit, Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | - Anna Gschwend
- Division of Allergology and Clinical Immunology, Department of Pneumology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Cordula Meincke
- Division of Allergology and Clinical Immunology, Department of Pneumology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Thierry M Nordmann
- Allergy Unit, Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | - Martin Glatz
- Allergy Unit, Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | - Michelle Heilig
- Division of Allergology and Clinical Immunology, Department of Pneumology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Benno Schnyder
- Allergy Unit, Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | - Arthur Helbling
- Division of Allergology and Clinical Immunology, Department of Pneumology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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