51
|
Minaldi E, Phillips EJ, Norton A. Immediate and Delayed Hypersensitivity Reactions to Beta-Lactam Antibiotics. Clin Rev Allergy Immunol 2021; 62:449-462. [PMID: 34767158 DOI: 10.1007/s12016-021-08903-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2021] [Indexed: 12/16/2022]
Abstract
Beta-lactam antibiotics are the most commonly reported drug allergy in adults and children. More than 95% of those with reported allergy labels to beta lactams are not confirmed when subjected to allergy testing. Beta lactam antibiotics are associated with a wide spectrum of immediate and delayed drug hypersensitivity reactions. The latency period to symptoms and clinical presentation aids in the causality assessment. Risk stratification based on diagnosis and timing then allows for appropriate management and evaluation. Skin prick testing, intradermal testing and oral challenge are well established for evaluation of immediate reactions. Delayed intradermal testing, patch testing and oral challenge can also be considered for evaluation of mild to moderate delayed reactions. Cross-reactivity between beta-lactams appears to be driven most commonly by a shared R1 side-chain. Standardized algorithms, protocols and pathways are needed for widespread implementation of a pragmatic and effective approach to patients reporting beta lactam allergy.
Collapse
Affiliation(s)
- Ellen Minaldi
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Elizabeth J Phillips
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Allison Norton
- Division of Allergy, Immunology, and Pulmonary Medicine, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| |
Collapse
|
52
|
Development and Validation of a Mobile Clinical Decision Support Tool for the Diagnosis of Drug Allergy in Adults: The Drug Allergy App. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:4410-4418.e4. [PMID: 34506965 DOI: 10.1016/j.jaip.2021.07.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/07/2021] [Accepted: 07/20/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Penicillin allergy overdiagnosis has been associated with inappropriate antibiotic prescribing, increased antimicrobial resistance, worse clinical outcomes, and increased health care costs. OBJECTIVE To develop and validate a questionnaire-based algorithm built in a mobile application to support clinicians in collecting accurate history of previous reactions and diagnosing drug allergy appropriately. METHODS A survey was completed by 164 medical and nonmedical prescribers to understand barriers to best practice. Based on the survey recommendations, we created a 10-item questionnaire-based algorithm to allow classification of drug allergy history in line with the National Institute for Health and Care Excellence guidelines on drug allergy. The algorithm was incorporated into a mobile application and retrospectively validated using anonymized clinical databases at regional immunology and dermatology centers in Manchester, United Kingdom. RESULTS A total of 55.2% of prescribers (95% confidence interval, 47% to 63.4%) thought it impossible to draw a firm conclusion based on history alone and 59.4% (95% CI, 51.4% to 67.5%) believed that regardless of the details of the penicillin allergy history, they would avoid all β-lactams. A drug allergy mobile application was developed and retrospectively validated, which revealed a low risk for misclassification of outcomes compared with reference standard drug allergy investigations in the allergy and dermatology clinics. CONCLUSIONS Perceived lack of time and preparedness to collect an accurate drug allergy history appear to be important barriers to appropriate antimicrobial prescribing. The Drug Allergy App may represent a useful clinical decision support tool to diagnose drug allergy correctly and support appropriate antibiotic prescribing.
Collapse
|
53
|
Fernandez J, Jimenez-Rodriguez TW, Blanca-Lopez N. Classifying cephalosporins: from generation to cross-reactivity. Curr Opin Allergy Clin Immunol 2021; 21:346-354. [PMID: 34074874 DOI: 10.1097/aci.0000000000000755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
PURPOSE OF REVIEW To review the most recent literature studying the classifications, immunochemistry, and crossreactivity of allergy reactions to cephalosporins. RECENT FINDINGS Over the last five years, research interest has focused on three areas related to cephalosporin allergy: cross-reactivity among cephalosporins and with other beta-lactams; the incidence of adverse reactions in penicillin allergy patients or in reported penicillin allergy labels; and new cephalosporins structures involved in the immunological recognition. SUMMARY Meta-analysis of a substantial number of studies shows that cephalosporins are safer than previously thought. Evidence supports two main conclusions in that regard. First, there is a relatively low percentage of cross-reactivity between cephalosporins and other beta-lactams with penicillins in penicillin allergy patients. Second, there is a very low incidence of allergy reactions in nonselected as well as in selected penicillin allergy patients when cephalosporins are used prior to surgical intervention.On the other hand, few structures have been discovered related to the immune mechanism of cephalosporin allergy reactions, and these are far from being ready to use in clinical practice.
Collapse
Affiliation(s)
- Javier Fernandez
- Allergy Section, Alicante General University Hospital, ISABIAL-UMH, Alicante
| | | | | |
Collapse
|
54
|
Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA. Sexually Transmitted Infections Treatment Guidelines, 2021. MMWR Recomm Rep 2021; 70:1-187. [PMID: 34292926 PMCID: PMC8344968 DOI: 10.15585/mmwr.rr7004a1] [Citation(s) in RCA: 750] [Impact Index Per Article: 250.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
These guidelines for the treatment of persons who have or are at risk for
sexually transmitted infections (STIs) were updated by CDC after consultation
with professionals knowledgeable in the field of STIs who met in Atlanta,
Georgia, June 11–14, 2019. The information in this report updates the
2015 guidelines. These guidelines discuss 1) updated recommendations for
treatment of Neisseria gonorrhoeae, Chlamydia trachomatis,
and Trichomonas vaginalis; 2) addition of
metronidazole to the recommended treatment regimen for pelvic inflammatory
disease; 3) alternative treatment options for bacterial vaginosis; 4) management
of Mycoplasma genitalium; 5) human papillomavirus vaccine
recommendations and counseling messages; 6) expanded risk factors for syphilis
testing among pregnant women; 7) one-time testing for hepatitis C infection; 8)
evaluation of men who have sex with men after sexual assault; and 9) two-step
testing for serologic diagnosis of genital herpes simplex virus. Physicians and
other health care providers can use these guidelines to assist in prevention and
treatment of STIs.
Collapse
|
55
|
Miller TJ, Remington AC, Nguyen DH, Gurtner GC, Momeni A. Preoperative β-lactam antibiotic prophylaxis is superior to bacteriostatic alternatives in immediate expander-based breast reconstruction. J Surg Oncol 2021; 124:722-730. [PMID: 34235740 DOI: 10.1002/jso.26599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 06/13/2021] [Accepted: 06/25/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND Staged implant-based breast reconstruction is the most common reconstructive modality following mastectomy. Postoperative implant infections can have a significant impact on adjuvant oncologic care and reconstructive outcome. Here, we investigate the impact of β-lactam antibiotics (i.e., bactericidal) compared to alternative antibiotic agents on postoperative outcomes for implant-based breast reconstruction. METHODS A retrospective analysis of patients who underwent immediate sub-pectoral tissue expander placement with an inferior acellular dermal matrix (ADM) sling at a single institution between May 2008 and July 2018 was performed. Patient demographics, comorbidities, and complication rates were retrieved. The impact of antibiotic regimen on postoperative outcomes, including infection rate and reconstructive failure, was investigated. RESULTS A total of 320 patients with a mean age and BMI of 48.2 years and 25.0 kg/m2 , respectively, who underwent 542 immediate breast reconstructions were included in the study. The use of a β-lactam antibiotic was protective against postoperative infection (odds ratio [OR] = 0.467, p = .046), infection requiring operative management (OR = 0.313, p = .022), and reconstructive failure (OR = 0.365, p = .028). Extended, that is, post-discharge, prophylaxis was not associated with any clinical benefit. CONCLUSION The use of β-lactam antibiotics for pre-/peri-operative prophylaxis is superior to alternative antibiotics with a bacteriostatic mechanism of action regarding rates of postoperative infection and reconstructive failure following immediate tissue expander-based breast reconstruction. Extended, that is, post-discharge, prophylaxis does not appear to be indicated, regardless of the antibiotic chosen.
Collapse
Affiliation(s)
- Travis J Miller
- Division of Plastic & Reconstructive Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - Austin C Remington
- Section of Plastic Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Dung H Nguyen
- Division of Plastic & Reconstructive Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - Geoffrey C Gurtner
- Division of Plastic & Reconstructive Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - Arash Momeni
- Division of Plastic & Reconstructive Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| |
Collapse
|
56
|
DALES, Drug Allergy Labels in Elective Surgical patients: a prospective multicentre cross-sectional study of incidence, risks, and attitudes in penicillin de-labelling strategies. Br J Anaesth 2021; 127:897-904. [PMID: 34243942 DOI: 10.1016/j.bja.2021.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/23/2021] [Accepted: 05/30/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND We sought to define the prevalence and nature of patient-reported drug allergies, determine their impact on prescribing, and explore drug allergy knowledge and attitudes amongst anaesthetists. METHODS We performed a prospective cross-sectional study in 213 UK hospitals in 2018. Elective surgical patients were interviewed, with a detailed allergy history taken in those self-reporting drug allergy. Anaesthetists completed a questionnaire concerning perioperative drug allergy. RESULTS Of 21 219 patients included, 6214 (29.3 %) (95% confidence interval [CI]: 28.7-29.9) reported drug allergy. Antibiotics, NSAIDs, and opioids were the most frequently implicated agents. Of a total of 8755 reactions, 2462 (28.1%) (95% CI: 29.2-31.1) were categorised as high risk for representing genuine allergy after risk stratification. A history suggestive of chronic spontaneous urticaria significantly increased the risk of reporting drug allergy (odds ratio 2.68; 95% CI: 2.4-3; P<0.01). Of 4756 anaesthetists completing the questionnaire, 1473 (31%) (95% CI: 29.7-32.3) routinely discuss perioperative allergy risk with patients. Prescribing habits in the presence of drug allergy labels differ depending on the implicated agent. Most anaesthetists (4678/4697; 99.6%) (95% CI: 99.4-99.8) prescribe opioids when reactions are consistent with side-effects, although 2269/4697 (48%) (95% CI: 46.9-49.7) would avoid the specific opioid reported. CONCLUSIONS Almost 30% of UK elective surgical patients report a history of drug allergies, but the majority of reported reactions are likely to be non-allergic reactions. Allergy labels can impact on perioperative prescribing through avoidance of important drugs and use of less effective alternatives. We highlight important knowledge gaps about drug allergy amongst anaesthetists, and the need for improved education around allergy.
Collapse
|
57
|
Cardoso‐Fernandes A, Blumenthal KG, Chiriac AM, Tarrio I, Afonso‐João D, Delgado L, Fonseca JA, Azevedo LF, Sousa‐Pinto B. Frequency of severe reactions following penicillin drug provocation tests: A Bayesian meta-analysis. Clin Transl Allergy 2021; 11:e12008. [PMID: 34161664 PMCID: PMC8215894 DOI: 10.1002/clt2.12008] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Patients with a penicillin allergy label tend to have worse clinical outcomes and increased healthcare use. Drug provocation tests (DPT) are the gold-standard in the diagnostic workup of penicillin allergy, but safety concerns may hinder their performance. We aimed to assess the frequency of severe reactions following a DPT in patients with reported allergy to penicillins or other β-lactams. METHODS We performed a systematic review, searching MEDLINE, Scopus, and Web of Science. We included primary studies assessing participants with a penicillin allergy label who underwent a DPT. We performed a Bayesian meta-analysis to estimate the pooled frequency of severe reactions to penicillin DPTs. Sources of heterogeneity were explored by subgroup and metaregression analyses. RESULTS We included 112 primary studies which included a total of 26,595 participants. The pooled frequency of severe reactions was estimated at 0.06% (95% credible interval [95% CrI] = 0.01%-0.13%; I2 = 57.9%). Most severe reactions (80/93; 86.0%) consisted of anaphylaxis. Compared to studies where the index reaction was immediate, we observed a lower frequency of severe reactions for studies assessing non-immediate index reactions (OR = 0.05; 95% CrI = 0-0.31). Patients reporting anaphylaxis as their index reaction were found to be at increased risk of developing severe reactions (OR = 13.5; 95% CrI = 7.7-21.5; I2 = 0.3%). Performance of direct DPTs in low-risk patients or testing with the suspected culprit drug were not associated with clinically relevant increased risk of severe reactions. CONCLUSIONS In patients with a penicillin allergy label, severe reactions resulting from DPTs are rare. Therefore, except for patients with potentially life-threatening index reactions or patients with positive skin tests-who were mostly not assessed in this analysis -, the safety of DPTs supports their performance in the diagnostic assessment of penicillin allergy.
Collapse
Affiliation(s)
- António Cardoso‐Fernandes
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of Medicine, University of PortoPortoPortugal
- Center for Health Technology and Services Research (CINTESIS)Faculty of Medicine, University of PortoPortoPortugal
| | - Kimberly G. Blumenthal
- Division of Rheumatology, Allergy, and Immunology, Department of MedicineMassachusetts General HospitalBostonMassachusettsUSA
- Harvard Medical SchoolHarvard UniversityBostonMassachusettsUSA
| | - Anca Mirela Chiriac
- Department of PulmonologyDivision of Allergy, Hôpital Arnaud de VilleneuveUniversity Hospital of MontpellierMontpellierFrance
- UMR‐S 1136 INSERM‐Sorbonne UniversitéEquipe Epidémiologie des Maladies Allergiques et Respiratoires (EPAR)Institut Pierre Louis d’Epidémiologie et de Santé PubliqueParisFrance
| | - Isabel Tarrio
- Center for Health Technology and Services Research (CINTESIS)Faculty of Medicine, University of PortoPortoPortugal
| | - David Afonso‐João
- Center for Health Technology and Services Research (CINTESIS)Faculty of Medicine, University of PortoPortoPortugal
| | - Luís Delgado
- Center for Health Technology and Services Research (CINTESIS)Faculty of Medicine, University of PortoPortoPortugal
- Basic and Clinical Immunology Unit, Department of Pathology, Faculty of MedicineUniversity of PortoPortoPortugal
| | - João Almeida Fonseca
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of Medicine, University of PortoPortoPortugal
- Center for Health Technology and Services Research (CINTESIS)Faculty of Medicine, University of PortoPortoPortugal
| | - Luís Filipe Azevedo
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of Medicine, University of PortoPortoPortugal
- Center for Health Technology and Services Research (CINTESIS)Faculty of Medicine, University of PortoPortoPortugal
| | - Bernardo Sousa‐Pinto
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of Medicine, University of PortoPortoPortugal
- Center for Health Technology and Services Research (CINTESIS)Faculty of Medicine, University of PortoPortoPortugal
- Basic and Clinical Immunology Unit, Department of Pathology, Faculty of MedicineUniversity of PortoPortoPortugal
| |
Collapse
|
58
|
Collins CD, Scheidel C, Anam K, Polega S, Malani AN, Hayward A, Leo HL, Shankar T, Morrin C, Brockhaus K. Impact of an Antibiotic Side-Chain-Based Cross-reactivity Chart Combined With Enhanced Allergy Assessment Processes for Surgical Prophylaxis Antimicrobials in Patients With β-Lactam Allergies. Clin Infect Dis 2021; 72:1404-1412. [PMID: 32155264 DOI: 10.1093/cid/ciaa232] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/04/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND β-Lactam antibiotics are first-line therapy for perioperative prophylaxis; however, patient-reported allergies often lead to increased prescribing of alternative antibiotics that may increase the incidence of surgical site infections. The R-group side chain of the β-lactam ring is responsible for allergic cross-reactivity and experts recommend the use of β-lactams that are structurally dissimilar. METHODS An internally developed, antibiotic side-chain-based cross-reactivity chart was developed and implemented alongside enhanced allergy assessment processes. This single-center, quasi-experimental study analyzed antibiotic prescribing in all adult patients with a documented β-lactam allergy undergoing an inpatient surgical procedure between quartile (Q) 1 (2012)-Q3 (2014) (historical group) and Q3 (2016)-Q3 (2018) (intervention group). Propensity-weighted scoring analyses compared categorical and continuous outcomes. Interrupted time-series analysis further analyzed key outcomes. RESULTS A total of 1119 and 1089 patients were included in the historical and intervention cohorts, respectively. There was a significant difference in patients receiving a β-lactam alternative antibiotic between cohorts (84.9% vs 15.1%; P < .001). There was a decrease in 30-day readmissions in the intervention cohort (7.9% vs 6.3%; P = .035); however, there was no difference in the incidence of SSIs in patients readmitted (14.8% vs 13%; P = .765). No significant differences were observed in allergic reactions (0.5% vs 0.3%; P = .323), surgical site infections, in-hospital and 30-day mortality, healthcare facility-onset Clostridiodes difficile infection, acute kidney injury, or hospital costs. CONCLUSIONS Implementation of an antibiotic cross-reactivity chart combined with enhanced allergy assessment processes significantly improved the prescribing of β-lactam antibiotics for surgical prophylaxis.
Collapse
Affiliation(s)
- Curtis D Collins
- Department of Pharmacy Services, St Joseph Mercy Health System, Ann Arbor, Michigan, USA
| | - Caleb Scheidel
- Methods Consultants of Ann Arbor, Ypsilanti, Michigan, USA
| | - Kishore Anam
- Michigan Data Analytics, St. Joseph Mercy Health System, Ann Arbor, Michigan, USA
| | - Shikha Polega
- Department of Pharmacy Services, St Joseph Mercy Health System, Ann Arbor, Michigan, USA
| | - Anurag N Malani
- Division of Infectious Diseases, Department of Internal Medicine, St Joseph Mercy Health System, Ann Arbor, Michigan, USA.,Department of Infection Prevention and Control, St Joseph Mercy Health System, Ann Arbor, Michigan, USA
| | - Alexandra Hayward
- Department of Infection Prevention and Control, St Joseph Mercy Health System, Ann Arbor, Michigan, USA
| | - Harvey L Leo
- Allergy and Immunology Associates of Ann Arbor, PC, Ann Arbor, Michigan, USA
| | - Tara Shankar
- Allergy and Immunology Associates of Ann Arbor, PC, Ann Arbor, Michigan, USA
| | - Cheryl Morrin
- Department of Infection Prevention and Control, St Joseph Mercy Health System, Ann Arbor, Michigan, USA
| | - Kara Brockhaus
- Department of Pharmacy Services, St Joseph Mercy Health System, Ann Arbor, Michigan, USA
| |
Collapse
|
59
|
Felix MMR, Aun MV, Menezes UPD, Queiroz GRESD, Rodrigues AT, D'Onofrio-Silva AC, Perelló MI, Camelo-Nunes IC, Malaman MF. Allergy to penicillin and betalactam antibiotics. EINSTEIN-SAO PAULO 2021; 19:eMD5703. [PMID: 33909756 PMCID: PMC8054529 DOI: 10.31744/einstein_journal/2021md5703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 08/27/2020] [Indexed: 12/14/2022] Open
Abstract
Betalactams are the most frequent cause of hypersensitivity reactions to drugs mediated by a specific immune mechanism. Immediate reactions occur within 1 to 6 hours after betalactam administration, and are generally IgE-mediated. They clinically translate into urticaria, angioedema and anaphylaxis. Non-immediate or delayed reactions occur after 1 hour of administration. These are the most common reactions and are usually mediated by T cells. The most frequent type is the maculopapular or morbilliform exanthematous eruption. Most individuals who report allergies to penicillin and betalactams can tolerate this group of antibiotics. To make diagnosis, a detailed medical history is essential to verify whether it was an immediate or non-immediate reaction. Thereafter, in vivo and/or in vitro tests for investigation may be performed. The challenging test is considered the gold standard method for diagnosis of betalactam hypersensitivity. The first approach when suspecting a reaction to betalactam is to discontinue exposure to the drug, and the only specific treatment is desensitization, which has very precise indications. The misdiagnosis of penicillin allergy affects the health system, since the "penicillin allergy" label is associated with increased bacterial resistance, higher rate of therapeutic failure, prolonged hospitalizations, readmissions, and increased costs. Thus, it is essential to develop strategies to assist the prescription of antibiotics in patients identified with a label of "betalactam allergy" at hospitals, and to enhance education of patients and their caregivers, as well as of non-specialist physicians.
Collapse
Affiliation(s)
- Mara Morelo Rocha Felix
- Escola de Medicina e Cirurgia, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Marcelo Vivolo Aun
- Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Ullissis Pádua de Menezes
- Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | | | | | | | | | | | | |
Collapse
|
60
|
Ben Fadhel N, Aroua F, Chadli Z, Ben Romdhane H, Chaabane A, Sahtout M, Boughattas NA, Ben Fredj N, Aouam K. Betalactam hypersensitivity: The importance of delabelling in primary care. Br J Clin Pharmacol 2021; 87:4619-4624. [PMID: 33899257 DOI: 10.1111/bcp.14879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 04/05/2021] [Accepted: 04/14/2021] [Indexed: 12/23/2022] Open
Abstract
PATIENTS AND METHODS An allergy work-up was performed on adult patients with a history of a penicillin allergy seen by primary medical care in Monastir (Tunisia) between July 2016 and February 2018. Patients with negative skin tests were challenged with amoxicillin. Patients who were delabelled were contacted by phone after 6 months to determine outcomes after any therapeutic penicillin-class antibiotic intake. RESULTS A total of 39 patients were evaluated and 33 (84.6%) were delabelled. Five patients were penicillin skin-test positive and one was oral challenge positive. We succeeded in contacting 33 delabelled patients at 6 months. Twenty-two patients tolerated a subsequent therapeutic course of amoxicillin, eight patients did not retake penicillin due to a lack of therapeutic indication, and three patients refused an indicated penicillin use fearful of another reaction. CONCLUSION This study highlights the importance of allergy work-up in the diagnosis of beta-lactam hypersensitivity. Most patients were excessively labelled as beta-lactam allergic and this mislabelling could increase healthcare costs and lead to the development of drug resistance by the use of wide-spectrum antibiotics.
Collapse
Affiliation(s)
- Najah Ben Fadhel
- Department of Pharmacology, University Hospital of Fattouma Bourguiba Monastir, Tunisia
| | - Fares Aroua
- Department of Pharmacology, University Hospital of Fattouma Bourguiba Monastir, Tunisia
| | - Zohra Chadli
- Department of Pharmacology, University Hospital of Fattouma Bourguiba Monastir, Tunisia
| | - Haifa Ben Romdhane
- Department of Pharmacology, University Hospital of Fattouma Bourguiba Monastir, Tunisia
| | - Amel Chaabane
- Department of Pharmacology, University Hospital of Fattouma Bourguiba Monastir, Tunisia
| | | | - Naceur A Boughattas
- Department of Pharmacology, University Hospital of Fattouma Bourguiba Monastir, Tunisia
| | - Nadia Ben Fredj
- Department of Pharmacology, University Hospital of Fattouma Bourguiba Monastir, Tunisia
| | - Karim Aouam
- Department of Pharmacology, University Hospital of Fattouma Bourguiba Monastir, Tunisia
| |
Collapse
|
61
|
Wöhrl S, Ostermayer C, Sesztak-Greinecker G, Jarisch R, Hemmer W, Wantke F. Drug-specific history, skin and in vitro tests can reduce the need for drug provocation tests in betalactam-hypersensitivity. Allergol Int 2021; 70:244-251. [PMID: 33191122 DOI: 10.1016/j.alit.2020.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/17/2020] [Accepted: 09/24/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Many patients report questionable drug hypersensitivity reactions (DHR) to betalactam antibiotics. A workup is required for objectivation. Direct drug provocation tests (DPTs) omitting a prior allergy workup are increasingly recommended as the primary diagnostic approach. However, apart from the risk of severe side effects, DPTs often are a scarce resource in overloaded healthcare-systems. We investigated how many cases can be solved by drug-specific history, drug-specific IgE, and skin tests obviating the need for DPT. METHODS We conducted a chart review in a retrospective cohort of 932 patients in an allergy outpatient centre from 2016 to 2017. Patients had been submitted to drug-specific history and specific IgE-, skin prick-, intradermal- and patch-tests with early and late readings with a series of penicillins and cephalosporins but DPTs were no option. RESULTS Overall, positive in vitro and/or skin tests were found in 96/932 (10.3%) patients. Drug-specific IgE was detected in 40/932 (4.3%) patients, 61/787 (7.8%) patients had positive skin tests. In vitro tests to Pencillin V showed the highest rate of positivity 24/479 (5.0%) and early readings of ampicillin the highest amongst the skin tests (3/49, 6.1%). Immediate skin tests were more often positive than delayed ones (75:45). The combination of all parameters including drug-specific history solved 346/932 (37.1%) cases while 586/932 (62.9%) remained unresolved. Self-reported DHR could be less often confirmed in females and young children (p < 0.05). CONCLUSIONS Testing with betalactams applying simple, cheap, and safe skin and blood tests can solve a third of DHR-cases on a high throughput scale.
Collapse
|
62
|
Pagani NR, Moverman MA, Puzzitiello RN, Menendez ME, Barnes CL, Kavolus JJ. Preoperative Allergy Testing for Patients Reporting Penicillin and Cephalosporin Allergies is Cost-Effective in Preventing Infection after Total Knee and Hip Arthroplasty. J Arthroplasty 2021; 36:700-704. [PMID: 32933797 DOI: 10.1016/j.arth.2020.08.045] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/29/2020] [Accepted: 08/21/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Routine preoperative allergy testing in patients reporting penicillin and cephalosporin allergies increases the number able to receive cefazolin, which should reduce the risk of infection after total knee and hip arthroplasty (TKA/THA), but it remains unclear whether this practice is cost-effective. Using a break-even analysis, we calculated the cost-effectiveness of routine preoperative allergy testing for infection prevention in total joint arthroplasty patients reporting penicillin and cephalosporin allergies. METHODS The cost of a penicillin allergy evaluation, the cost of revision arthroplasty for prosthetic joint infection (PJI), and baseline rates of PJI in patients receiving a noncefazolin antibiotic in the perioperative period were derived from existing literature. A break-even economic model using these variables was constructed to calculate the absolute risk reduction (ARR) in infection rate needed for preoperative allergy testing to be cost-effective. The number needed to treat (NNT) was calculated from the ARR. RESULTS Preoperative allergy testing before TKA and THA in patients reporting penicillin and cephalosporin allergies was cost-effective if the initial infection rate decreased by an ARR of 0.810% (NNT = 123) and 0.655% (NNT = 153) for TKA and THA, respectively. Cost-effectiveness was maintained with varying allergy consultation costs, infection rates, and costs associated with PJI treatment. CONCLUSION Routine preoperative allergy testing and clearance are cost-effective infection prevention strategies among patients reporting penicillin and cephalosporin allergies in the setting of elective joint arthroplasty. Widespread adoption of this practice may considerably reduce the economic and societal burden associated with prosthetic infections.
Collapse
Affiliation(s)
| | | | | | | | - C Lowry Barnes
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR
| | - Joseph J Kavolus
- Tufts Medical Center, Department of Orthopaedic Surgery, Boston, MA
| |
Collapse
|
63
|
Goh SJR, Tuomisto JEE, Purcell AW, Mifsud NA, Illing PT. The complexity of T cell-mediated penicillin hypersensitivity reactions. Allergy 2021; 76:150-167. [PMID: 32383256 DOI: 10.1111/all.14355] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 04/16/2020] [Accepted: 04/30/2020] [Indexed: 12/20/2022]
Abstract
Penicillin refers to a group of beta-lactam antibiotics that are the first-line treatment for a range of infections. However, they also possess the ability to form novel antigens, or neoantigens, through haptenation of proteins and can stimulate a range of immune-mediated adverse reactions-collectively known as drug hypersensitivity reactions (DHRs). IgE-mediated reactions towards these neoantigens are well studied; however, IgE-independent reactions are less well understood. These reactions usually manifest in a delayed manner as different forms of cutaneous eruptions or liver injury consistent with priming of an immune response. Ex vivo studies have confirmed the infiltration of T cells into the site of inflammation, and the subsets of T cells involved appear dependent on the nature of the reaction. Here, we review the evidence that has led to our current understanding of these immune-mediated reactions, discussing the nature of the lesional T cells, the characterization of drug-responsive T cells isolated from patient blood, and the potential mechanisms by which penicillins enter the antigen processing and presentation pathway to stimulate these deleterious responses. Thus, we highlight the need for a more comprehensive understanding of the underlying genetic and molecular basis of penicillin-induced DHRs.
Collapse
Affiliation(s)
- Shawn J. R. Goh
- Infection and Immunity Program Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology Monash University Clayton Vic. Australia
| | - Johanna E. E. Tuomisto
- Infection and Immunity Program Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology Monash University Clayton Vic. Australia
| | - Anthony W. Purcell
- Infection and Immunity Program Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology Monash University Clayton Vic. Australia
| | - Nicole A. Mifsud
- Infection and Immunity Program Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology Monash University Clayton Vic. Australia
| | - Patricia T. Illing
- Infection and Immunity Program Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology Monash University Clayton Vic. Australia
| |
Collapse
|
64
|
Wolfson AR, Banerji A. Skin testing and drug challenge in the evaluation of drug hypersensitivity reactions. Allergy Asthma Proc 2021; 42:16-21. [PMID: 33404386 DOI: 10.2500/aap.2021.42.200091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Immediate hypersensitivity to drugs is characterized by symptoms such as hives, swelling, and wheezing. To prevent a negative impact on care, assessment by an allergist is important. Evaluation requires a clear clinical history, but it is often lacking or vague, which makes a diagnosis difficult. Allergists instead can use skin testing and drug challenge to evaluate drug hypersensitivity reactions, which help the patient and provider understand the causative drug(s) and, more importantly, enables the use of the exonerated drug(s). Although penicillin skin testing is standardized, well described, and widely used, skin testing for most other drugs requires the use of a nonirritating skin testing concentration that can have a low negative predictive value. Drug challenges are the criterion standard for confirming tolerance. The allergist must obtain an in-depth clinical history and then follow with skin testing and/or drug challenges when indicated to determine which drugs can be de-labelled and which should be avoided. In this review, we focused on the evaluation of drug hypersensitivity reactions to antibiotics, perioperative agents, biologics, and chemotherapeutics.
Collapse
Affiliation(s)
| | - Aleena Banerji
- From the Harvard Medical School, Boston, Massachusetts; and
| |
Collapse
|
65
|
Daniels P, Jalil M, Michaud C, Hostoffer R. Negative penicillin skin testing induced anaphylaxis with concurrent beta blocker and angiotensin-converting enzyme inhibitor use. Ann Allergy Asthma Immunol 2020; 126:435-437. [PMID: 33387614 DOI: 10.1016/j.anai.2020.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 12/18/2020] [Accepted: 12/28/2020] [Indexed: 11/24/2022]
Affiliation(s)
- Phuong Daniels
- Department of Pediatrics, Lake Erie College of Osteopathic Medicine, Erie, Pennsylvania; Allergy/Immunology Associates, Inc, Mayfield Heights, Ohio.
| | - Maaz Jalil
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | | | - Robert Hostoffer
- Department of Pediatrics, Lake Erie College of Osteopathic Medicine, Erie, Pennsylvania; Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine University Hospitals Cleveland Medical Center, Cleveland, Ohio; Allergy/Immunology Associates, Inc, Mayfield Heights, Ohio
| |
Collapse
|
66
|
Meyer BI, Berry DE, Cribbs BE, Hendrick A, Jain N, Hubbard GB, O'Keefe G, Patel PS, Shantha JG, Yan J, Yeh S, Rao P. Outcomes of Infectious Endophthalmitis in Patients with Systemic Antibiotic Allergies to Penicillins, Cephalosporins, or Vancomycin. Ophthalmol Retina 2020; 5:901-909. [PMID: 33271346 DOI: 10.1016/j.oret.2020.11.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/16/2020] [Accepted: 11/24/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE The mainstay empiric treatments of bacterial endophthalmitis are intravitreal vancomycin and ceftazidime. In the United States, up to 10% of the general population has a reported penicillin (PCN) allergy. Despite low cross-reactivity between PCN and later-generation cephalosporins, some providers alter the intravitreal antibiotic choice for endophthalmitis because of concern for allergic reactions. We evaluated the management strategies of infectious endophthalmitis in the setting of self-reported systemic antibiotic allergies and the association with adverse reactions after standard intravitreal antibiotic administration. DESIGN Single-center, retrospective cohort study. PARTICIPANTS All patients with endophthalmitis between 2005 and 2019 and documented PCN, PCN-analog, cephalosporin, or vancomycin allergy who received intravitreal antibiotics on the basis of International Classification of Diseases 9th and 10th Revisions, and Current Procedural Terminology codes. METHODS Retrospective chart review. MAIN OUTCOME MEASURES Any allergic reaction after intravitreal injection, additional surgical interventions required for treatment, and visual function at last recorded visit. RESULTS Of the 65 patients included in this cohort, the most common causes of endophthalmitis were postcataract extraction surgery (n = 23, 35.4%) and postintravitreal injection (n = 11, 16.9%). All patients (65/65) received intravitreal vancomycin, and 81.5% (53/65) received intravitreal ceftazidime. Of the 53 patients who received intravitreal ceftazidime, 46 (86.8%) had allergies to PCNs alone, 5 (9.4%) had a cephalosporin allergy alone, and 2 (3.8%) had reported allergies to both PCN and cephalosporin antibiotics. Two patients (3.1%) with a documented vancomycin allergy received intravitreal vancomycin without complication. No patients exhibited any systemic or local allergic reactions or complications after intravitreal injection. CONCLUSIONS There were no documented allergic reactions in this cohort of patients with systemic antibiotic allergies who were treated for infectious endophthalmitis. Our findings are consistent with previous reports of a low allergic cross-reactivity between PCN and later-generation cephalosporins. Ophthalmologists should use evidence-based practices and a careful informed consent process when choosing intravitreal antibiotics for patients with specific antibiotic allergies. In the routine patient with suspected bacterial endophthalmitis, PCN allergy may not be an absolute contraindication to intravitreal cephalosporin use.
Collapse
Affiliation(s)
| | - Duncan E Berry
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia
| | - Blaine E Cribbs
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia
| | - Andrew Hendrick
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia
| | - Nieraj Jain
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia
| | - G Baker Hubbard
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia
| | - Ghazala O'Keefe
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia
| | - Purnima S Patel
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia
| | | | - Jiong Yan
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia
| | - Steven Yeh
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia
| | - Prethy Rao
- Department of Ophthalmology, Emory Eye Center, Atlanta, Georgia.
| |
Collapse
|
67
|
Sobrino-García M, Moreno EM, Muñoz-Bellido FJ, Gracia-Bara MT, Laffond E, Doña I, Martín C, Macías EM, de Arriba S, Campanón V, Gallardo A, Dávila I. Analysis of the Costs Associated With the Elective Evaluation of Patients Labelled as Allergic to Beta-Lactams or Nonsteroidal Antiinflamatory Agents. Front Pharmacol 2020; 11:584633. [PMID: 33746738 PMCID: PMC7970755 DOI: 10.3389/fphar.2020.584633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/14/2020] [Indexed: 11/13/2022] Open
Abstract
Introduction: Being labelled as allergic to different drugs results in patients receiving other treatments, which are more toxic, less effective and more expensive. We aimed to analyze different studies of the costs of drug hypersensitivity assessment. Methods: A bibliographic search on studies regarding this issue was performed, including the available scientific evidence up to June 2020. We searched three databases with terms related to costs and allergy testing in drug hypersensitivity reactions. Results: Our search revealed 1,430 publications, of which 20 met the inclusion criteria. In the manuscript, prospective studies evaluating the costs of the evaluation of patients with suspected allergy to beta-lactams or non-steroidal anti-inflammatory drugs are analyzed. Also, comment is made on the costs associated with incorrect labeling as non-steroidal anti-inflammatory drug or penicillin hypersensitivity. Conclusions: Taking all costs into account, the study of drug hypersensitivity is not expensive, particularly considering the economic and clinical consequences of labeling a patient with hypersensitivity to drugs.
Collapse
Affiliation(s)
| | - Esther M Moreno
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain.,Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Biomedical and Diagnostic Sciences, Faculty of Medicine, University of Salamanca, Salamanca, Spain.,Asthma, Allergic and Adverse Reactions (ARADyAL), Network for Cooperative Research in Health of Instituto de Salud Carlos III, Salamanca University Hospital, Salamanca, Spain
| | - Francisco J Muñoz-Bellido
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain.,Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Biomedical and Diagnostic Sciences, Faculty of Medicine, University of Salamanca, Salamanca, Spain
| | - Maria T Gracia-Bara
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain.,Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Elena Laffond
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain.,Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Biomedical and Diagnostic Sciences, Faculty of Medicine, University of Salamanca, Salamanca, Spain
| | - Inmaculada Doña
- Asthma, Allergic and Adverse Reactions (ARADyAL), Network for Cooperative Research in Health of Instituto de Salud Carlos III, Salamanca University Hospital, Salamanca, Spain.,Allergy Service, University Hospital of Malaga, Malaga, Spain.,Biomedical Research Institute of Malaga (IBIMA), Malaga, Spain
| | - Cristina Martín
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain.,Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Eva M Macías
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain.,Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Biomedical and Diagnostic Sciences, Faculty of Medicine, University of Salamanca, Salamanca, Spain
| | - Sonia de Arriba
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain.,Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Biomedical and Diagnostic Sciences, Faculty of Medicine, University of Salamanca, Salamanca, Spain
| | - Valle Campanón
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain
| | - Alicia Gallardo
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain
| | - Ignacio Dávila
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain.,Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Biomedical and Diagnostic Sciences, Faculty of Medicine, University of Salamanca, Salamanca, Spain.,Asthma, Allergic and Adverse Reactions (ARADyAL), Network for Cooperative Research in Health of Instituto de Salud Carlos III, Salamanca University Hospital, Salamanca, Spain
| |
Collapse
|
68
|
Penicillin Allergy Assessment in Pregnancy: Safety and Impact on Antibiotic Use. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 9:1338-1346. [PMID: 33212237 DOI: 10.1016/j.jaip.2020.10.063] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Penicillin and other beta-lactam antibiotics are recommended for group B Streptococcus and cesarean section prophylaxis, but approximately 10% of pregnant patients report a penicillin allergy. OBJECTIVE To assess the safety and impact of penicillin allergy evaluation in pregnant patients. METHODS In this retrospective study of obstetrician-ordered Allergy/Immunology (AI) electronic consultations (e-consults) from September 20, 2017 through December 31, 2019, we reviewed the electronic health record for e-consult recommendation; patient demographic, obstetric, and allergy histories; and peripartum antibiotic utilization with indication. For patients whose electronic consultation recommended an in-person AI evaluation, testing outcomes were determined, and multivariable logistic regression models were used to compare antibiotic use between patients who did and did not receive an in-person AI evaluation. RESULTS Of 389 obstetrician-ordered e-consults, 363 (93%) recommended an in-person AI evaluation; of these, 222 (61%) patients received an in-person AI evaluation. Of 220 (99%) patients skin tested, 209 (95%) had their penicillin allergy label safely removed. Compared with patients who did not receive an in-person AI evaluation despite it being recommended (n = 141), patients with in-person AI evaluation (n = 222) had reduced peripartum vancomycin (adjusted odds ratio [aOR], 0.07; 95% CI, 0.01-0.33), clindamycin (aOR, 0.17; 95% CI, 0.08-0.34), and gentamicin (aOR, 0.39; 95% CI, 0.19-0.78) use and increased penicillin (aOR, 18.0; 95% CI, 6.30-51.2) use. The fully AI evaluated patients had increased first-line antibiotic prophylaxis for group B Streptococcus (aOR, 26.9; 95% CI, 6.32-114) and cesarean section (aOR, 1.94; 95% CI, 1.06-3.52). CONCLUSIONS In a sample of 220 pregnant patients with penicillin allergy histories and in-person AI evaluation, penicillin allergy testing was safe and associated with significantly reduced broad-spectrum antibiotic use and increased first-line beta-lactam antibiotic use.
Collapse
|
69
|
Jeimy S, Ben-Shoshan M, Abrams EM, Ellis AK, Connors L, Wong T. Practical guide for evaluation and management of beta-lactam allergy: position statement from the Canadian Society of Allergy and Clinical Immunology. Allergy Asthma Clin Immunol 2020; 16:95. [PMID: 33292466 PMCID: PMC7653726 DOI: 10.1186/s13223-020-00494-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 10/26/2020] [Indexed: 01/09/2023] Open
Abstract
The vast majority of individuals labelled as allergic are not deemed truly allergic upon appropriate assessment by an allergist. A label of beta-lactam allergy carries important risks for individual and public health. This article provides an overview of beta-lactam allergy, implications of erroneous beta-lactam allergy labels and the impact that can be provided by structured allergy assessment. We provide recommendations on how to stratify risk of beta-lactam allergy, beta lactam challenge protocols as well as management of patients at high risk of beta-lactam allergy.
Collapse
Affiliation(s)
- Samira Jeimy
- Division of Clinical Immunology and Allergy, Department of Medicine, Western University, London, ON, N6A4V2, Canada.
| | - Moshe Ben-Shoshan
- Division of Allergy, Immunology and Dermatology, Department of Pediatrics, Montreal Children's Hospital, McGill University, Montreal, QC, Canada
| | - Elissa M Abrams
- Department of Pediatrics, Section of Allergy and Clinical Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Anne K Ellis
- Division of Allergy and Immunology, Department of Medicine, Queen's University, Kingston, Canada
| | - Lori Connors
- Division of General Internal Medicine, Department of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Tiffany Wong
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
70
|
Kelso JM. Penicillin testing: Consider pretest probability. J Allergy Clin Immunol 2020; 147:54-56. [PMID: 33127386 DOI: 10.1016/j.jaci.2020.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 11/24/2022]
Affiliation(s)
- John M Kelso
- Division of Allergy, Asthma and Immunology, Scripps Clinic, San Diego, Calif.
| |
Collapse
|
71
|
Nicoletti P, Carr DF, Barrett S, McEvoy L, Friedmann PS, Shear NH, Nelson MR, Chiriac AM, Blanca-López N, Cornejo-García JA, Gaeta F, Nakonechna A, Torres MJ, Caruso C, Valluzzi RL, Floratos A, Shen Y, Pavlos RK, Phillips EJ, Demoly P, Romano A, Blanca M, Pirmohamed M. Beta-lactam-induced immediate hypersensitivity reactions: A genome-wide association study of a deeply phenotyped cohort. J Allergy Clin Immunol 2020; 147:1830-1837.e15. [PMID: 33058932 PMCID: PMC8100096 DOI: 10.1016/j.jaci.2020.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/27/2020] [Accepted: 10/05/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND β-lactam antibiotics are associated with a variety of immune-mediated or hypersensitivity reactions, including immediate (type I) reactions mediated by antigen-specific IgE. OBJECTIVE We sought to identify genetic predisposing factors for immediate reactions to β-lactam antibiotics. METHODS Patients with a clinical history of immediate hypersensitivity reactions to either penicillins or cephalosporins, which were immunologically confirmed, were recruited from allergy clinics. A genome-wide association study was conducted on 662 patients (the discovery cohort) with a diagnosis of immediate hypersensitivity and the main finding was replicated in a cohort of 98 Spanish cases, recruited using the same diagnostic criteria as the discovery cohort. RESULTS Genome-wide association study identified rs71542416 within the Class II HLA region as the top hit (P = 2 × 10-14); this was in linkage disequilibrium with HLA-DRB1∗10:01 (odds ratio, 2.93; P = 5.4 × 10-7) and HLA-DQA1∗01:05 (odds ratio, 2.93, P = 5.4 × 10-7). Haplotype analysis identified that HLA-DRB1∗10:01 was a risk factor even without the HLA-DQA1∗01:05 allele. The association with HLA-DRB1∗10:01 was replicated in another cohort, with the meta-analysis of the discovery and replication cohorts showing that HLA-DRB1∗10:01 increased the risk of immediate hypersensitivity at a genome-wide level (odds ratio, 2.96; P = 4.1 × 10-9). No association with HLA-DRB1∗10:01 was identified in 268 patients with delayed hypersensitivity reactions to β-lactams. CONCLUSIONS HLA-DRB1∗10:01 predisposed to immediate hypersensitivity reactions to penicillins. Further work to identify other predisposing HLA and non-HLA loci is required.
Collapse
Affiliation(s)
- Paola Nicoletti
- Icahn School of Medicine at Mount Sinai, New York, NY; Sema4, Stamford, Conn
| | - Daniel F Carr
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom
| | - Sarah Barrett
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom
| | - Laurence McEvoy
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom
| | - Peter S Friedmann
- Dermatology Unit, Sir Henry Wellcome Research Laboratories, School of Medicine, University of Southampton, Southampton, United Kingdom
| | - Neil H Shear
- Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Division of Dermatology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | | | - Anca M Chiriac
- Division of Allergy, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, Montpellier, France
| | | | - José A Cornejo-García
- Allergy Research Group, Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, ARADyAL, Malaga, Spain
| | - Francesco Gaeta
- Allergy Unit, Columbus Hospital, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Alla Nakonechna
- Liverpool University Hospitals Foundation National Health Service Trust, Liverpool, United Kingdom
| | - Maria J Torres
- Allergy Research Group, Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, ARADyAL, Malaga, Spain; Allergy Unit, Hospital Regional Universitario de Málaga, Malaga, Spain
| | - Cristiano Caruso
- Allergy Unit, Columbus Hospital, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Rocco L Valluzzi
- Division of Allergy, University Department of Pediatrics, Pediatric Hospital Bambino Gesù, Rome, Italy
| | - Aris Floratos
- Department of Systems Biology, New York, NY; Department of Biomedical Informatics, Columbia University, New York, NY
| | | | - Rebecca K Pavlos
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia, Nedlands, Australia
| | - Elizabeth J Phillips
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn; Centre for Clinical Pharmacology and Infectious Diseases, Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Australia
| | - Pascal Demoly
- Division of Allergy, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, Montpellier, France; Unité Mixte de Recherche en Santé (UMR-S) 1136 Institut National de la Santé et de la Recherche Médicale-Sorbonne Université, Equipe Epidemiology of allergic and respiratory diseases (EPAR)- Louis d'Epidémiologie et de Santé Publique (IPLESP), Paris, France
| | - Antonino Romano
- Istituto di Ricovero e Cura a Carattere Scientifico Oasi Maria SS, Troina, Italy; Fondazione Mediterranea GB Morgagni, Catania, Italy
| | - Miguel Blanca
- Allergy Unit, Hospital Regional Universitario de Málaga, Malaga, Spain
| | - Munir Pirmohamed
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom; Liverpool University Hospitals Foundation National Health Service Trust, Liverpool, United Kingdom.
| |
Collapse
|
72
|
Blumenthal KG, Harkness T, Phillips EJ, Ramsey A, Banerji A, Samarakoon U, Stone C, Fu X, Khan DA, Otani I, Camargo CA, Zhang Y, Donelan K, Blumenthal KG, Banerji A, Harkness T, Mancini CM, Samarakoon U, Ahola CM, Judd AD, Arman W, Phillips E, Stone C, Williams K, Osea RE, Ramsey A, Mustafa SS, Blue H, Otani I, Guyer A, Khan D. Patient Characteristics and Concerns about Drug Allergy: A Report from the United States Drug Allergy Registry. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 8:2958-2967. [DOI: 10.1016/j.jaip.2020.08.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/29/2020] [Accepted: 08/19/2020] [Indexed: 12/11/2022]
|
73
|
Furness A, Kalicinsky C, Rosenfield L, Barber C, Poliquin V. Penicillin Skin Testing, Challenge, and Desensitization in Pregnancy: A Systematic Review. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2020; 42:1254-1261.e3. [DOI: 10.1016/j.jogc.2019.11.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/24/2019] [Accepted: 11/26/2019] [Indexed: 11/15/2022]
|
74
|
Griffith NC, Justo JA, Winders HR, Al‐Hasan MN, Mediwala KN, Bookstaver PB. Regulatory approval, implementation, and brief assessment of a pharmacist‐ and pharmacy
trainee‐administered
penicillin allergy assessment and skin testing program. JOURNAL OF THE AMERICAN COLLEGE OF CLINICAL PHARMACY 2020. [DOI: 10.1002/jac5.1317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Nicole C. Griffith
- Department of Clinical Pharmacy and Outcomes Sciences, University of South Carolina College of Pharmacy Columbia South Carolina USA
| | - Julie Ann Justo
- Department of Clinical Pharmacy and Outcomes Sciences, University of South Carolina College of Pharmacy Columbia South Carolina USA
- Department of Pharmacy, Prisma Health Midlands Columbia South Carolina USA
| | - Hana R. Winders
- Department of Clinical Pharmacy and Outcomes Sciences, University of South Carolina College of Pharmacy Columbia South Carolina USA
| | - Majdi N. Al‐Hasan
- Department of Internal Medicine, University of South Carolina School of Medicine Columbia South Carolina USA
- Department of Medicine, Division of Infectious Diseases Prisma Health University of South Carolina Medical Group Columbia South Carolina USA
| | | | - P. Brandon Bookstaver
- Department of Clinical Pharmacy and Outcomes Sciences, University of South Carolina College of Pharmacy Columbia South Carolina USA
- Department of Pharmacy, Prisma Health Midlands Columbia South Carolina USA
| |
Collapse
|
75
|
Penicillin causes non-allergic anaphylaxis by activating the contact system. Sci Rep 2020; 10:14160. [PMID: 32843685 PMCID: PMC7447753 DOI: 10.1038/s41598-020-71083-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 08/02/2020] [Indexed: 12/18/2022] Open
Abstract
Immediate hypersensitivity reaction (IHR) can be divided into allergic- and non-allergic-mediated, while “anaphylaxis” is reserved for severe IHR. Clinically, true penicillin allergy is rare and most reported penicillin allergy is “spurious”. Penicillin-initiated anaphylaxis is possible to occur in skin test- and specific IgE-negative patients. The contact system is a plasma protease cascade initiated by activation of factor XII (FXII). Many agents with negative ion surface can activate FXII to drive contact system. Our data showed that penicillin significantly induced hypothermia in propranolol- or pertussis toxin-pretreated mice. It also caused a rapid and reversible drop in rat blood pressure, which did not overlap with IgE-mediated hypotension. These effects could be countered by a bradykinin-B2 receptor antagonist icatibant, and consistently, penicillin indeed increased rat plasma bradykinin. Moreover, penicillin not only directly activated contact system FXII-dependently, but also promoted bradykinin release in plasma incubated-human umbilical vein endothelial cells. In fact, besides penicillin, other beta-lactams also activated the contact system in vitro. Since the autoactivation of FXII can be affected by multiple-factors, plasma from different healthy individuals showed vastly different amidolytic activity in response to penicillin, suggesting the necessity of determining the potency of penicillin to induce individual plasma FXII activation. These results clarify that penicillin-initiated non-allergic anaphylaxis is attributed to contact system activation, which might bring more effective diagnosis options for predicting penicillin-induced fatal risk and avoiding costly and inappropriate treatment clinically.
Collapse
|
76
|
Krishna MT, Misbah SA. Is direct oral amoxicillin challenge a viable approach for 'low-risk' patients labelled with penicillin allergy? J Antimicrob Chemother 2020; 74:2475-2479. [PMID: 31167024 DOI: 10.1093/jac/dkz229] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Spurious penicillin allergy (PenA) is a major public health problem. Up to 10% of the population and 20% of inpatients are labelled with PenA, but only <5%-10% have a proven allergy following comprehensive investigations. PenA tests are labour intensive and require specialist input, which may not be readily available due to limited allergy services. Therefore, patients with PenA receive alternative antibiotics that are associated with higher rates of iatrogenic infections, antimicrobial resistance and a longer hospital stay with consequent increased costs. Recent evidence suggests that a supervised 'direct' oral amoxicillin challenge (without performing allergy tests) is a safe option in low-risk patients (those least likely to be allergic based on history). Patient selection for this procedure is based on a careful guideline-based risk stratification process. Further research is needed to validate this intervention in routine clinical practice and explore potential facilitators and barriers to implementation in different healthcare settings.
Collapse
Affiliation(s)
- Mamidipudi T Krishna
- Department of Allergy and Immunology, University Hospitals Birmingham NHS Foundation Trust and Institute of Immunology & Immunotherapy, University of Birmingham, Birmingham, UK
| | - Siraj A Misbah
- Department of Clinical Immunology, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
| |
Collapse
|
77
|
Gökmirza Özdemir P, Kızılca Ö, Aylanç H, Çelik V, Beken B, Akbulut SD, Yazıcıoğlu M, Süt N. Residents and interns in the 3 university hospitals: their knowledge of and attitudes to drug allergy. Asia Pac Allergy 2020; 10:e31. [PMID: 32789116 PMCID: PMC7402951 DOI: 10.5415/apallergy.2020.10.e31] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 07/07/2020] [Indexed: 11/25/2022] Open
Abstract
Background Previous studies revealed there are many gaps in the awareness and knowledge regarding the diagnosis and management of drug allergy (DA) among various health-care professionals. Objective To assess the knowledge, attitudes, and practices towards DA among residents and interns of 3 university hospitals in the region of Trakya (Thrace), Turkey. Methods A cross-sectional survey was conducted at university hospitals of 3 cities in the Trakya region: 1. Trakya University Medical Faculty, Edirne (n = 405), 2. Namik Kemal University Medical Faculty, Tekirdag (n = 114), and 3. Canakkale 18 Mart University Medical Faculty, Canakkale (n = 111). A Turkish questionnaire was developed based on previous published studies. Results The majority of participants (67%) had not received education on DA as a separate subject during their medical education. Less than a third (28.3%) of all respondents were satisfied with their knowledge concerning patients with clinical signs of DA. Of the 6 knowledge questions on DA, the average score for the study was 3.51 out of 6 (58.5%). Residents had a higher knowledge score (3.93 ± 1.1) compared with interns (3.05 ± 1.2) (p < 0.001). The lowest percentage of correct answers were in response to questions on laboratory confirmation of drug-related anaphylaxis (14.5%) and the possibility of penicillin toleration in patients with a history of penicillin allergy (11.8%). The majority of participants (92%) believe that medical doctors should be educated in DA. There were no significant correlations between taking DA histories and the frequency during daily practice of encountering patients. Conclusion Our study revealed that DA knowledge and attitudes are not at satisfactory level among respondents, and we concluded the importance and necessity of reinforcement of DA education in pre- and postgraduate education of medical doctors.
Collapse
Affiliation(s)
- Pınar Gökmirza Özdemir
- Trakya University Medical Faculty, Pediatric Allergy and Immunology Department, Edirne, Turkey
| | - Özgür Kızılca
- Namik Kemal University Medical Faculty, Pediatrics Department, Tekirdag, Turkey
| | - Hakan Aylanç
- Canakkale 18 Mart University Medical Faculty, Pediatrics Department, Canakkale, Turkey
| | - Velat Çelik
- Trakya University Medical Faculty, Pediatric Allergy and Immunology Department, Edirne, Turkey
| | - Burçin Beken
- Trakya University Medical Faculty, Pediatric Allergy and Immunology Department, Edirne, Turkey
| | - Simge Dilan Akbulut
- Trakya University Medical Faculty, 6th Grade Medical Student, Edi̇rne, Turkey
| | - Mehtap Yazıcıoğlu
- Trakya University Medical Faculty, Pediatric Allergy and Immunology Department, Edirne, Turkey
| | - Necdet Süt
- Trakya University Medical Faculty, Biostatistics Department, Edirne, Turkey
| |
Collapse
|
78
|
Kuder MM, Lennox MG, Li M, Lang DM, Pien L. Skin testing and oral amoxicillin challenge in the outpatient allergy and clinical immunology clinic in pregnant women with penicillin allergy. Ann Allergy Asthma Immunol 2020; 125:646-651. [PMID: 32798617 DOI: 10.1016/j.anai.2020.08.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/30/2020] [Accepted: 08/07/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Penicillin allergy is frequently reported. In pregnant women, reported penicillin allergy is associated with negative health outcomes and suboptimal group B streptococcal prophylaxis. For individuals having penicillin allergy, skin testing followed by an observed oral challenge is recommended. Previous data indicate a low risk of adverse reaction with skin testing in pregnant women, but the subsequent oral challenge was not routinely pursued. OBJECTIVE To determine whether skin testing followed by the outpatient oral challenge is tolerated by pregnant women. METHODS We conducted a retrospective review of all pregnant women who underwent penicillin allergy evaluation at an outpatient allergy and clinical immunology clinic. The patients underwent oral amoxicillin challenges based on the discretion of the allergy provider. We evaluated the index reaction history, skin test results, oral challenge results, and subsequent antibiotic exposure. RESULTS A total of 46 pregnant women underwent skin testing without adverse reactions, of whom 44 patients (95.6%) received negative results. A total of 18 women (39%) completed an oral challenge without adverse reactions. Patients challenged vs not challenged did not differ in patient age, gestational age, latency since index reaction, or reaction history risk level. Notably, 28 women received intrapartum antibiotics. There was no difference in intrapartum antibiotic administration between those who did or who did not complete an in-office oral challenge (P = .90). CONCLUSION Penicillin skin testing and oral challenge in pregnant women can safely be performed in the outpatient setting. There was no difference in the intrapartum antibiotic use between women who were and those who were not challenged. Further research is needed to determine the utility of oral challenge in pregnant patients.
Collapse
Affiliation(s)
- Margaret M Kuder
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, Ohio.
| | - Maria G Lennox
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Manshi Li
- Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | - David M Lang
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Lily Pien
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| |
Collapse
|
79
|
du Plessis T, Walls G, Jordan A, Holland DJ. Implementation of a pharmacist-led penicillin allergy de-labelling service in a public hospital. J Antimicrob Chemother 2020; 74:1438-1446. [PMID: 30753497 DOI: 10.1093/jac/dky575] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 12/13/2018] [Accepted: 12/23/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Inaccurate allergy labelling results in inappropriate antimicrobial management of the patient, which may affect clinical outcome, increase the risk of adverse events and increase costs. Inappropriate use of alternative antibiotics has implications for antimicrobial stewardship programmes and microbial resistance. METHODS All adult inpatients labelled as penicillin allergic were identified and screened for eligibility by the study pharmacist. An accurate allergy and medication history was taken. Patients were 'de-labelled', underwent oral challenge or were referred to an immunology clinic, if study criteria were met. All patients included in the study were followed-up 1 year after intervention. RESULTS Two hundred and fifty eligible patients with a label of 'penicillin allergy' were identified. The prevalence of reported penicillin allergy at Middlemore Hospital was 11%. We found that 80% of study patients could be 'de-labelled'. Of those, 80% were 'de-labelled' after an interview with the pharmacist alone, 16% had an uneventful oral challenge and 4% were deemed to be inappropriately labelled after referral to an immunology clinic. Appropriately labelled patients accounted for 20% of the study population. Changes to inpatient antibiotic therapy were recommended in 61% of 'de-labelled' patients, of which no patients had adverse events after commencing on penicillin antibiotics. At the 1 year follow-up, 98% of patients who were 'de-labelled' had no adverse events to repeated administration of penicillin antibiotics. CONCLUSIONS This study showed that a pharmacist-led allergy management service is a safe option to promote antimicrobial stewardship and appropriate allergy labelling.
Collapse
Affiliation(s)
| | - Genevieve Walls
- Infection Services, Middlemore Hospital, Auckland, New Zealand
| | - Anthony Jordan
- Department of Immunology, Auckland City Hospital, Auckland, New Zealand
| | - David J Holland
- Infection Services, Middlemore Hospital, Auckland, New Zealand
| |
Collapse
|
80
|
Moreno EM, Moreno V, Laffond E, Gracia-Bara MT, Muñoz-Bellido FJ, Macías EM, Curto B, Campanon MV, de Arriba S, Martin C, Davila I. Usefulness of an Artificial Neural Network in the Prediction of β-Lactam Allergy. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 8:2974-2982.e1. [PMID: 32702519 DOI: 10.1016/j.jaip.2020.07.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 01/29/2023]
Abstract
BACKGROUND An accurate diagnosis of β-lactam (BL) allergy improves the use of antibiotics, increases patients' safety, and reduces costs to health systems. Nevertheless, it requires skin and drug provocation tests, which are time-consuming and put the patient at risk. Furthermore, allergy testing is not available in circumstances such as the urgent need for antibiotic therapy. OBJECTIVE To evaluate the usefulness of an artificial neural network (ANN) in the prediction of hypersensitivity to BLs, and compare it with logistic regression (LR) analysis. METHODS In a single-center study, 656 patients evaluated for BL allergy between 1994 and 2000 were retrospectively analyzed, and the data were used to construct an ANN. The ANN predictive capabilities were compared with LR and then prospectively evaluated in 615 patients who underwent BL evaluation between 2011 and 2017. RESULTS A total of 1271 patients were evaluated. All patients had a definite diagnosis as allergic or nonallergic to BL. The prospective sample showed a lower percentage of patients with allergy than the retrospective sample (20.7% vs 25.8%; P = .018). In the retrospective and prospective series, the ANN reached a sensitivity of 89.5% and 81.1%, a specificity of 86.1% and 97.9%, a positive predictive value of 82.1% and 91.1%, and a negative predictive value of 92.1% and 95.2%, respectively. The ANN's performance was far superior to that of the LR, whose best performance reached a sensitivity of 31.9% and a specificity of 98.8%. CONCLUSIONS This ANN demonstrated a superior performance than the LR in predicting BL hypersensitivity without misdiagnosing severe allergic reactions. The ANN could be a helpful tool to classify the reaction risk, particularly in the identification of low-risk patients, in which an open challenge could be done to delabel patients.
Collapse
Affiliation(s)
- Esther M Moreno
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain; Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Biomedical and Diagnostic Sciences, Salamanca Medical School, University of Salamanca, Salamanca, Spain; RETIC de Asma, Reacciones adversas y Alérgicas (ARADYAL), Madrid, Spain
| | - Vidal Moreno
- Department of Computer Science and Automation, University of Salamanca, Salamanca, Spain.
| | - Elena Laffond
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain; Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Biomedical and Diagnostic Sciences, Salamanca Medical School, University of Salamanca, Salamanca, Spain
| | - M Teresa Gracia-Bara
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain; Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Francisco J Muñoz-Bellido
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain; Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Biomedical and Diagnostic Sciences, Salamanca Medical School, University of Salamanca, Salamanca, Spain
| | - Eva M Macías
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain; Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Biomedical and Diagnostic Sciences, Salamanca Medical School, University of Salamanca, Salamanca, Spain
| | - Belen Curto
- Department of Computer Science and Automation, University of Salamanca, Salamanca, Spain
| | - M Valle Campanon
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain
| | - Sonia de Arriba
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain; Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Biomedical and Diagnostic Sciences, Salamanca Medical School, University of Salamanca, Salamanca, Spain
| | - Cristina Martin
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain
| | - Ignacio Davila
- Allergy Service, University Hospital of Salamanca, Salamanca, Spain; Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Biomedical and Diagnostic Sciences, Salamanca Medical School, University of Salamanca, Salamanca, Spain; RETIC de Asma, Reacciones adversas y Alérgicas (ARADYAL), Madrid, Spain
| |
Collapse
|
81
|
Livirya S, Pithie A, Chua I, Hamilton N, Doogue M, Isenman H. Oral amoxicillin challenge for low risk penicillin allergic patients. Intern Med J 2020; 52:295-300. [DOI: 10.1111/imj.14978] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 07/05/2020] [Accepted: 07/05/2020] [Indexed: 11/26/2022]
Affiliation(s)
| | - Alan Pithie
- Consultant Infectious Diseases and General Medicine Physician, Christchurch Hospital New Zealand
| | - Ignatius Chua
- Consultant Clinical Immunologist, Christchurch Hospital New Zealand
| | - Niall Hamilton
- Infectious Disease Registrar, Auckland City Hospital New Zealand
| | - Matthew Doogue
- Consultant Clinical Pharmacology and General Medicine Physician, Christchurch Hospital New Zealand
- Associate Professor, University of Otago Christchurch New Zealand
| | - Heather Isenman
- Consultant Infectious Diseases and General Medicine Physician, Christchurch Hospital New Zealand
| |
Collapse
|
82
|
Heng YK, Liew YCC, Kong YL, Lim YL. β-Lactam allergy testing and delabeling-Experiences and lessons from Singapore. IMMUNITY INFLAMMATION AND DISEASE 2020; 8:371-379. [PMID: 32506796 PMCID: PMC7416033 DOI: 10.1002/iid3.318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/11/2020] [Accepted: 05/21/2020] [Indexed: 01/08/2023]
Abstract
Background β‐Lactam allergy is over‐reported and this leads to greater healthcare costs. Allergy testing has inherent risks, yet patients who test negative may continue avoiding β‐lactams. Objective To evaluate the safety and diagnostic value of β‐lactams allergy testing locally and usage of antibiotics following negative testing. Methods We performed a retrospective medical record review and follow‐up survey of patients who underwent β‐lactam testing between 2010 and 2016 at the National Skin Centre, Singapore. Results We reviewed the records of 166 patients, with a total of 173 β‐lactam allergy labels. Eighty (46.2%) labels were to penicillin, 75 (43.1%) to amoxicillin/amoxicillin‐clavulanic acid, 11 (6.4%) to cephalexin, and 5 (2.9%) to others. Skin tests were performed in 142 patients and drug provocation tests (DPTs) in 141 patients. Eleven (6.6%) patients defaulted DPTs after skin testing. Out of 166 patients, 22 (13.3%) patients were proven allergic by either skin tests (16) or DPTs (6). Patients who tested positive had nonsevere reactions. Out of 155 patients who were conclusively evaluated, 133 (85.8%) were not allergic. Of these patients, 30 (22.6%) used the tested β‐lactam subsequently, with one reporting a mild reaction. Fifty‐one (38.3%) patients were uncontactable or uncertain if they consumed a β‐lactam since testing negative. Fifty‐two (39.1%) patients had no re‐exposure (35 had no indication, 17 were fearful of reactions). Conclusion Drug allergy testing was safe and removed inappropriate labels. Clinical Implication Allergy testing is efficacious, but fears of subsequent rechallenge should be addressed to maximize the effectiveness of allergy delabeling.
Collapse
|
83
|
Ramsey A, Greenberger PA. Penicillin Skin Testing: A Major Role for the Minor Determinant and Amoxicillin? THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 8:1987-1988. [PMID: 32499039 DOI: 10.1016/j.jaip.2020.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/06/2020] [Accepted: 03/10/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Allison Ramsey
- Division of Allergy/Immunology and Rheumatology, Department of Medicine, Rochester Regional Health, Rochester, NY; Division of Allergy/Immunology and Rheumatology, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Paul A Greenberger
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill.
| |
Collapse
|
84
|
Romano A, Atanaskovic‐Markovic M, Barbaud A, Bircher AJ, Brockow K, Caubet J, Celik G, Cernadas J, Chiriac A, Demoly P, Garvey LH, Mayorga C, Nakonechna A, Whitaker P, Torres MJ. Towards a more precise diagnosis of hypersensitivity to beta-lactams - an EAACI position paper. Allergy 2020; 75:1300-1315. [PMID: 31749148 DOI: 10.1111/all.14122] [Citation(s) in RCA: 153] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/08/2019] [Accepted: 10/23/2019] [Indexed: 02/07/2023]
Abstract
A recent survey of the European Academy of Allergy and Clinical Immunology (EAACI) Drug Allergy Interest Group (DAIG) on how European allergy specialists deal with beta-lactam (BL) hypersensitivity demonstrated a significant heterogeneity in current practice, suggesting the need to review and update existing EAACI guidelines in order to make the diagnostic procedures as safe and accurate, but also as cost-effective, as possible. For this purpose, a bibliographic search on large studies regarding BL hypersensitivity diagnosis was performed by an EAACI task force, which reviewed and evaluated the literature data using the GRADE system for quality of evidence and strength of recommendation. The updated guidelines provide a risk stratification in BL hypersensitivity according to index reaction(s), as well as an algorithmic approach, based on cross-reactivity studies, in patients with a suspicion of BL hypersensitivity and an immediate need for antibiotic therapy, when referral to an allergist is not feasible. Furthermore, the update addresses availability and concentrations of skin test (ST) reagents, ST and drug provocation test (DPT) protocols, and diagnostic algorithms and administration of alternative BL in allergic subjects. Specifically, distinct diagnostic algorithms are suggested depending on risk stratification of the patient into high and low risk based on the morphology and chronology of the reaction, immediate (ie, occurring within 1-6 hours after the last administered dose) or nonimmediate (ie, occurring more than 1 hour after the initial drug administration), and the reaction severity. Regarding the allergy workup, the main novelty of this document is the fact that in some low-risk nonimmediate reactions ST are not mandatory, especially in children. For DPT, further studies are necessary to provide data supporting the standardization of protocols, especially of those regarding nonimmediate reactions, for which there is currently no consensus.
Collapse
Affiliation(s)
- Antonino Romano
- Casa di Cura Quisisana Rome & Fondazione Mediterranea G.B. Catania Italy
| | | | - Annick Barbaud
- Departement of Dermatology and Allergology Institut Pierre Louis d'Epidemiologie et de Sante Publique INSERM Tenon Hospital Sorbonne Université Paris France
| | | | - Knut Brockow
- Department of Dermatology and Allergy Biederstein Technische Universität München Munich Germany
| | | | - Gulfem Celik
- Department of Immunology and Allergy Ankara University School of Medicine Ankara Turkey
| | - Josefina Cernadas
- Department of Allergy and Immunology Centro Hospitalar Universitário de S João Porto Portugal
| | - Anca‐Mirela Chiriac
- Division of Allergy Department of Pulmonology Hôpital Arnaud de Villeneuve University Hospital of Montpellier Montpellier France
- UMRS 1136 Equipe ‐ EPAR ‐ IPLESP UPMC Univ Sorbonne Universités Paris France
| | - Pascal Demoly
- Division of Allergy Department of Pulmonology Hôpital Arnaud de Villeneuve University Hospital of Montpellier Montpellier France
- UMRS 1136 Equipe ‐ EPAR ‐ IPLESP UPMC Univ Sorbonne Universités Paris France
| | - Lene H. Garvey
- Allergy Clinic Department of Dermatology and Allergy Herlev and Gentofte Hospital University of Copenhagen Copenhagen Denmark
- Department of Clinical Medicine University of Copenhagen Copenhagen Denmark
| | - Cristobalina Mayorga
- Allergy Research Group Instituto de Investigación Biomédica de Málaga-IBIMA Malaga Spain
- Allergy Unit Hospital Regional Universitario de Málaga-UMA-ARADyAL Malaga Spain
| | - Alla Nakonechna
- Clinical Immunology and Allergy Unit Sheffield Teaching Hospital Sheffield UK
- University of Liverpool Liverpool UK
| | - Paul Whitaker
- Regional Adult Cystic Fibrosis Unit St James's Hospital Leeds UK
| | - María José Torres
- Allergy Unit Hospital Regional Universitario de Málaga-UMA-ARADyAL Malaga Spain
| |
Collapse
|
85
|
Wurpts G, Aberer W, Dickel H, Brehler R, Jakob T, Kreft B, Mahler V, Merk HF, Mülleneisen N, Ott H, Pfützner W, Röseler S, Ruëff F, Sitter H, Sunderkötter C, Trautmann A, Treudler R, Wedi B, Worm M, Brockow K. Guideline on diagnostic procedures for suspected hypersensitivity to beta-lactam antibiotics: Guideline of the German Society for Allergology and Clinical Immunology (DGAKI) in collaboration with the German Society of Allergology (AeDA), German Society for Pediatric Allergology and Environmental Medicine (GPA), the German Contact Dermatitis Research Group (DKG), the Austrian Society for Allergology and Immunology (ÖGAI), and the Paul-Ehrlich Society for Chemotherapy (PEG). Allergol Select 2020; 4:11-43. [PMID: 32568254 PMCID: PMC7304290 DOI: 10.5414/alx02104e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
This guideline on diagnostic procedures for suspected beta-lactam antibiotic (BLA) hypersensitivity was written by the German and Austrian professional associations for allergology, and the Paul-Ehrlich Society for Chemotherapy in a consensus procedure according to the criteria of the German Association of Scientific Medical Societies. BLA such as penicillins and cephalosporins represent the drug group that most frequently triggers drug allergies. However, the frequency of reports of suspected allergy in patient histories clearly exceeds the number of confirmed cases. The large number of suspected BLA allergies has a significant impact on, e.g., the quality of treatment received by the individual patient and the costs to society as a whole. Allergies to BLA are based on different immunological mechanisms and often manifest as maculopapular exanthema, as well as anaphylaxis; and there are also a number of less frequent special clinical manifestations of drug allergic reactions. All BLA have a beta-lactam ring. BLA are categorized into different classes: penicillins, cephalosporins, carbapenems, monobactams, and beta-lactamase inhibitors with different chemical structures. Knowledge of possible cross-reactivity is of considerable clinical significance. Whereas allergy to the common beta-lactam ring occurs in only a small percentage of all BLA allergic patients, cross-reactivity due to side chain similarities, such as aminopenicillins and aminocephalosporins, and even methoxyimino cephalosporins, are more common. However, the overall picture is complex and its elucidation may require further research. Diagnostic procedures used in BLA allergy are usually made up of four components: patient history, laboratory diagnostics, skin testing (which is particularly important), and drug provocation testing. The diagnostic approach - even in cases where the need to administer a BLA is acute - is guided by patient history and risk - benefit ratio in the individual case. Here again, further studies are required to extend the present state of knowledge. Performing allergy testing for suspected BLA hypersensitivity is urgently recommended not only in the interests of providing the patient with good medical care, but also due to the immense impact of putative BLA allergies on society as a whole.
Collapse
Affiliation(s)
- Gerda Wurpts
- Clinic for Dermatology and Allergology, Aachen Comprehensive Allergy Center (ACAC), Uniklinik RWTH Aachen, Germany
| | - Werner Aberer
- Department of Dermatology, Graz Medical University, Graz, Austria,
| | - Heinrich Dickel
- Department of Dermatology, Venereology and Allergology, St. Josef Hospital, University Hospital of the Ruhr University Bochum, Bochum,
| | - Randolf Brehler
- Department of Dermatology, University Hospital Münster, Münster,
| | - Thilo Jakob
- Department of Dermatology and Allergology, University Hospital Gießen und Marburg, Gießen Site, Gießen,
| | - Burkhard Kreft
- Department of Dermatology and Venereology, University, Hospital Halle (Saale), Halle (Saale),
| | - Vera Mahler
- Paul-Ehrlich Institute, Langen,
- Department of Dermatology, University Hospital Erlangen, Erlangen,
| | - Hans F. Merk
- Clinic for Dermatology and Allergology, Aachen Comprehensive Allergy Center (ACAC), Uniklinik RWTH Aachen, Germany
| | | | - Hagen Ott
- Division of Pediatric Dermatology and Allergology, Auf der Bult Children’s Hospital, Hannover,
| | - Wolfgang Pfützner
- Department of Dermatology and Allergology, University Hospital Gießen und Marburg, Marburg Site, Marburg,
| | - Stefani Röseler
- Clinic for Dermatology and Allergology, Aachen Comprehensive Allergy Center (ACAC), Uniklinik RWTH Aachen, Germany
| | - Franziska Ruëff
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich,
| | - Helmut Sitter
- Institute of Surgical Research, Philipps University Marburg, Marburg,
| | - Cord Sunderkötter
- Department of Dermatology and Venereology, University, Hospital Halle (Saale), Halle (Saale),
| | - Axel Trautmann
- Department of Dermatology and Allergy, Allergy Center Mainfranken, University Hospital Würzburg, Würzburg,
| | - Regina Treudler
- Department of Dermatology, Venereology, and Allergology and Leipzig Interdisciplinary Center for Allergology – LICA-CAC, University of Leipzig, Leipzig,
| | - Bettina Wedi
- Department of Dermatology and Allergy, Comprehensive Allergy Center, Hannover Medical School, Hannover,
| | - Margitta Worm
- Department of Dermatology, Venereology, and Allergology, Charité University Hospital Berlin, Allergy Center Charité (ACC), Berlin, and
| | - Knut Brockow
- Department of Dermatology and Allergology am Biederstein, School of Medicine, Technical University of Munich, Munich, Germany
| |
Collapse
|
86
|
Sousa-Pinto B, Tarrio I, Blumenthal KG, Araújo L, Azevedo LF, Delgado L, Fonseca JA. Accuracy of penicillin allergy diagnostic tests: A systematic review and meta-analysis. J Allergy Clin Immunol 2020; 147:296-308. [PMID: 32446963 DOI: 10.1016/j.jaci.2020.04.058] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/15/2020] [Accepted: 04/30/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Having a penicillin allergy label associates with a higher risk for antibiotic resistance and increased health care use. OBJECTIVE We sought to assess the accuracy of skin tests and specific IgE quantification in the diagnostic evaluation of patients reporting a penicillin/β-lactam allergy. METHODS We performed a systematic review and diagnostic accuracy meta-analysis, searching on MEDLINE, Scopus, and Web of Science. We included studies conducted in patients reporting a penicillin allergy and in whom skin tests and/or specific IgE quantification were performed and compared with drug challenge results. We quantitatively assessed the accuracy of diagnostic tests with bivariate random-effects meta-analyses. Meta-regression and subgroup analyses were performed to explore causes of heterogeneity. Studies' quality was evaluated using QUADAS-2 criteria. RESULTS We included 105 primary studies, assessing 31,761 participants. Twenty-seven studies were assessed by bivariate meta-analysis. Skin tests had a summary sensitivity of 30.7% (95% CI, 18.9%-45.9%) and a specificity of 96.8% (95% CI, 94.2%-98.3%), with a partial area under the summary receiver-operating characteristic curve of 0.686 (I2 = 38.2%). Similar results were observed for subanalyses restricted to patients reporting nonimmediate maculopapular exanthema or urticaria/angioedema. Specific IgE had a summary sensitivity of 19.3% (95% CI, 12.0%-29.4%) and a specificity of 97.4% (95% CI, 95.2%-98.6%), with a partial area under the summary receiver-operating characteristic curve of 0.420 (I2 = 8.5%). Projected predictive values mainly reflect the low frequency of true penicillin allergy. CONCLUSIONS Skin tests and specific IgE quantification appear to have low sensitivity and high specificity. Because current evidence is insufficient for assessing the role of these tests in stratifying patients for delabeling, we identified key requirements needed for future studies.
Collapse
Affiliation(s)
- Bernardo Sousa-Pinto
- MEDCIDS, Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Porto, Portugal; CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal; Basic and Clinical Immunology Unit, Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal.
| | - Isabel Tarrio
- MEDCIDS, Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Kimberly G Blumenthal
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Mass; Harvard Medical School, Boston, Mass
| | - Luís Araújo
- CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal; Basic and Clinical Immunology Unit, Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Luís Filipe Azevedo
- MEDCIDS, Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Porto, Portugal; CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Luís Delgado
- CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal; Basic and Clinical Immunology Unit, Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - João Almeida Fonseca
- MEDCIDS, Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Porto, Portugal; CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal
| |
Collapse
|
87
|
Wang LA, Patel K, Kuruvilla ME, Shih J. Direct amoxicillin challenge without preliminary skin testing for pediatric patients with penicillin allergy labels. Ann Allergy Asthma Immunol 2020; 125:226-228. [PMID: 32407949 DOI: 10.1016/j.anai.2020.05.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 04/24/2020] [Accepted: 05/03/2020] [Indexed: 10/24/2022]
Affiliation(s)
- Laura Ann Wang
- Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Kiran Patel
- Department of Pediatrics, Emory University, Atlanta, Georgia; Center for Cystic Fibrosis and Airways Disease Research, Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Merin Elizabeth Kuruvilla
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Jennifer Shih
- Department of Pediatrics, Emory University, Atlanta, Georgia; Center for Cystic Fibrosis and Airways Disease Research, Children's Healthcare of Atlanta, Atlanta, Georgia; Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Emory University School of Medicine, Atlanta, Georgia.
| |
Collapse
|
88
|
Li PH, Yeung HHF, Lau CS, Au EYL. Prevalence, Incidence, and Sensitization Profile of β-lactam Antibiotic Allergy in Hong Kong. JAMA Netw Open 2020; 3:e204199. [PMID: 32374398 PMCID: PMC7203606 DOI: 10.1001/jamanetworkopen.2020.4199] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
IMPORTANCE Allergy to β-lactam antibiotics is one of the most frequently reported drug reactions, but epidemiological data in Chinese populations are lacking. Ethnic- and region-specific sensitization patterns of skin testing for β-lactam antibiotic allergy are also unknown. OBJECTIVE To identify the prevalence, 1-year incidence, and sensitization patterns of β-lactam antibiotic allergy in patients in Hong Kong. DESIGN, SETTING, AND PARTICIPANTS This cross-sectional study obtained territorywide, anonymized electronic patient data from the Clinical Management Systems of the Hospital Authority, the sole publicly funded health care system in Hong Kong with facilities in 7 regions (Hong Kong East, Hong Kong West, Kowloon Central, Kowloon East, Kowloon West, New Territories East, and New Territories West). All referrals to Queen Mary Hospital for β-lactam antibiotic allergy testing from January 1, 2018, to December 31, 2019, were also analyzed for sensitization patterns. MAIN OUTCOMES AND MEASURES Prevalence and cumulative incidence of β-lactam antibiotic allergy reported in Hong Kong, and sensitization patterns according to β-lactam antibiotic allergy skin testing. RESULTS Complete records of 7 184 271 unique patients were analyzed, with a men to women ratio of 1:1.2 and with a median age of 44 years. The prevalence of physician-reported β-lactam antibiotic allergy was 2.0%, and the cumulative incidence was 107 per 100 000 population. Of the 34 402 new drug allergies reported in 2018, 8032 (23.3%) were β-lactam antibiotic allergies. Three hundred fifty-five patients with reactions suggestive of β-lactam antibiotic allergy underwent skin testing, and only 49 (13.8%; 95% CI, 10.64%-17.90%) of them had positive test results. Of these 49 patients, 14 (28.6%; 95% CI, 18.35%-44.49%) had selective reaction and 35 (71.4%; 95% CI, 59.84%-85.27%) had nonselective reaction. The sensitization rate to either benzylpenicilloyl polylysine or a minor determinant (benzylpenicilloate) was 47.0% (n = 23; 95% CI, 34.85%-63.21%), with 10 patients monosensitized to benzylpenicilloyl polylysine only (20.4%; 95% CI, 11.74%-35.48%) and 5 to benzylpenicilloate only (10.2%; 95% CI, 4.45%-23.42%). CONCLUSIONS AND RELEVANCE Results of this study suggest that patients in Hong Kong with β-lactam antibiotic allergy had much higher rates of monosensitization to benzylpenicilloyl polylysine and benzylpenicilloate, making these reagents essential in β-lactam antibiotic skin tests. Such a finding warrants future studies into whether this sensitization is specific to ethnicity or region.
Collapse
Affiliation(s)
- Philip H. Li
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, Hong Kong
| | - Heather H. F. Yeung
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Chak-Sing Lau
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, Hong Kong
| | - Elaine Y. L. Au
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Hong Kong
| |
Collapse
|
89
|
DesBiens M, Scalia P, Ravikumar S, Glick A, Newton H, Erinne O, Riblet N. A Closer Look at Penicillin Allergy History: Systematic Review and Meta-Analysis of Tolerance to Drug Challenge. Am J Med 2020; 133:452-462.e4. [PMID: 31647915 DOI: 10.1016/j.amjmed.2019.09.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/07/2019] [Accepted: 09/10/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND True allergy to penicillin is rare, despite the high frequency with which it is reported. While most patients reporting penicillin allergy are not prone to anaphylaxis, it is not currently known what percentage of these patients will tolerate dose challenges of penicillin-based antibiotics. This review aims to determine the rate of tolerance in patients reporting penicillin allergy when challenged with penicillin-based antibiotics. METHODS We searched MedLine, Embase, and Cochrane Library for publications with English language translations between the years 2000 and 2017. We included randomized controlled trials, quasi-experimental, and observational studies of participants reporting penicillin allergy who received at least one systemic dose of a penicillin in the form of a drug challenge. At least 2 independent reviewers extracted data from included studies and assessed the quality of each included study. To generate primary outcome data, we calculated a summary estimate rate of penicillin tolerance from a pooled proportion of participants receiving penicillin with no adverse effects. RESULTS Initial literature search yielded 2945 studies, of which 23 studies were ultimately included in our review; 5056 study participants with reported history of penicillin allergy were challenged with a penicillin. After weighting for study sample size, a pooled average of 94.4% (95% confidence interval, 93.7%-95%) of participants tolerated the dose challenge without any adverse reaction. CONCLUSION Misrepresented penicillin allergy drives unnecessary use of alternative antibiotics, which may be less effective, more toxic, and more expensive than using penicillin. In addressing the problem of penicillin allergy over-diagnosis, evaluation should go beyond risk for type 1 hypersensitivity. Our data suggest that 94.4% of 5056 participants with reported penicillin allergy determined to be clinically appropriate for allergy evaluation tolerated repeat administration of penicillin-based antibiotics without any adverse reactions. This review generates meaningful information useful to clinical predictive analytics, in evaluating and managing patients with a reported history of penicillin allergy.
Collapse
Affiliation(s)
- Martha DesBiens
- The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH.
| | - Peter Scalia
- The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH
| | - Saiganesh Ravikumar
- The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH
| | - Andrew Glick
- The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH
| | - Helen Newton
- The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH
| | - Okechukwu Erinne
- The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH
| | - Natalie Riblet
- The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH
| |
Collapse
|
90
|
A Streamlined Approach to Optimize Perioperative Antibiotic Prophylaxis in the Setting of Penicillin Allergy Labels. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 8:1316-1322. [DOI: 10.1016/j.jaip.2019.12.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 12/06/2019] [Accepted: 12/10/2019] [Indexed: 12/30/2022]
|
91
|
Stone CA, Trubiano J, Coleman DT, Rukasin CRF, Phillips EJ. The challenge of de-labeling penicillin allergy. Allergy 2020; 75:273-288. [PMID: 31049971 DOI: 10.1111/all.13848] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 03/28/2019] [Accepted: 04/23/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Even though 8%-25% of most populations studied globally are labeled as penicillin allergic, most diagnoses of penicillin allergy are made in childhood and relate to events that are either not allergic in nature, are low risk for immediate hypersensitivity, or are a potential true allergy that has waned over time. Penicillin allergy labels directly impact antimicrobial stewardship by leading to use of less effective and broader spectrum antimicrobials and are associated with antimicrobial resistance. They may also delay appropriate antimicrobial therapy and lead to increased risk of specific adverse healthcare outcomes. Operationalizing penicillin allergy de-labeling into a new arm of antimicrobial stewardship programs (ASPs) has become an increasing global focus. METHODS We performed an evidence-based narrative review of the literature of penicillin allergy label carriage, the adverse effects of penicillin allergy labels, and current approaches and barriers to penicillin allergy de-labeling. Over the period 1928-2018 in Pubmed and Medline, search terms used included "penicillin allergy" or "penicillin hypersensitivity" alone or in combination with "adverse events," "testing," "evaluation," "effects," "label," "de-labeling," "prick or epicutaneous," and "intradermal" skin testing, "oral challenge or provocation," "cross-reactivity," and "antimicrobial stewardship". RESULTS Penicillin allergy labels are highly prevalent, largely inaccurate and their carriage may lead to unnecessary treatment and inferior outcomes with alternative agents as well as adverse public health outcomes such as antibiotic resistance. CONCLUSIONS Operationalizing penicillin allergy de-labeling as an aspect of ASP has become an increasing global focus. There is a need for validated approaches that optimally combine the use of history and ingestion challenge with or without proceeding formal skin testing to tackle penicillin allergy efficiently within complex healthcare systems. At the same time, there is great promise for penicillin allergy evaluation and de-labeling as an individual and public health strategy to reduce adverse healthcare outcomes, improve antimicrobial stewardship, and decrease healthcare costs.
Collapse
Affiliation(s)
- Cosby A. Stone
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine Vanderbilt University Medical Center Nashville Tennessee
| | - Jason Trubiano
- Department of Infectious Diseases Austin Health Heidelberg Victoria Australia
- Department of Infectious Diseases Centre for Antibiotic Allergy and Research, Peter MacCallum Cancer Centre Melbourne Victoria Australia
- Department of Medicine (Austin Health) University of Melbourne Parkville Victoria Australia
- The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre Parkville Victoria Australia
| | - David T. Coleman
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine Vanderbilt University Medical Center Nashville Tennessee
| | - Christine R. F. Rukasin
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine Vanderbilt University Medical Center Nashville Tennessee
| | - Elizabeth J. Phillips
- Division of Infectious Diseases, Department of Medicine Vanderbilt University Medical Center Nashville Tennessee
- Department of Pharmacology Vanderbilt University School of Medicine Nashville Tennessee
- Department of Pathology, Microbiology and Immunology Vanderbilt University Medical Center Nashville Tennessee
- Institute for Immunology & Infectious Diseases Murdoch University Murdoch Western Australia Australia
| |
Collapse
|
92
|
Voelker D, Pitlick M, Gonzalez-Estrada A, Park M. Minor Determinants of Penicillin and Amoxicillin Are Still Key Components of Penicillin Skin Testing. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 8:1980-1986.e7. [PMID: 32006722 DOI: 10.1016/j.jaip.2020.01.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 01/17/2020] [Accepted: 01/17/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND The positive rate and pattern of penicillin skin test (PST) has been reported to be decreasing and changing. Previous studies differ about which penicillin component is the dominant component in positive PST result. OBJECTIVE To characterize past and current PST patterns to determine whether different determinants in PST have changed over time. METHODS A retrospective review of electronic medical records (January 2001-December 2017) was performed for patients who underwent PST. Data were divided into 4 cohorts to see whether trends occurred over time. The cohorts were divided as follows: cohort 1 (2001-2005), cohort 2 (2006-2010), cohort 3 (2011-2015), and cohort 4 (2016-2017). RESULTS A total of 30,883 patients underwent PST with the following breakdowns per cohort: cohort 1, 6,536; cohort 2, 10,372; cohort 3, 10,640; and cohort 4, 3,335. Of these, 329 patients (1.0%) had a positive PST result with a wheal of 3 × 3 mm or greater, with 110 in cohort 1, 130 in cohort 2, 67 in cohort 3, and 22 in cohort 4, whereas 170 patients (0.5%) had a positive PST result with a wheal of 5 × 5 mm or greater, with 54 in cohort 1, 72 in cohort 2, 34 in cohort 3, and 10 in cohort 4. When the positive PST rates of cohort 2 (1.25%), cohort 3 (0.6%), and cohort 4 (0.6%) were compared with those of cohort 1 (1.7%), there was a significant decrease in positive PST rates (P = .0278; P < .0001; P < .0001, respectively). When cohort 1 positive rate to benzylpenicillin polylysine among the positive PST (wheal of 3 × 3 mm or greater) was compared with those of the other cohorts (cohorts 2-4), the percent positive of benzylpenicillin polylysine in PST was 27% compared with 21% (P = .38), 34% (P = .5), and 18% (P = .6), respectively. When the positive PST result was defined as a wheal of 5 × 5 mm or greater, the positive rate for benzylpenicillin polylysine in PST increased over time (cohort 2: 22%, P = .8; cohort 3: 32%, P = .3; cohort 4: 40%, P = .264) compared with cohort 1 (19%). CONCLUSIONS Positive PST rate is decreasing. We demonstrate that despite benzylpenicillin polylysine solely positive rates remaining relatively stable, the minor penicillin determinants and amoxicillin play an important role in PST and their adoption into standard protocol for routine PST should be considered.
Collapse
Affiliation(s)
- Dayne Voelker
- Mayo Clinic School of Graduate Medical Education, Mayo Clinic, Rochester, Minn
| | - Mitchell Pitlick
- Mayo Clinic School of Graduate Medical Education, Mayo Clinic, Rochester, Minn
| | - Alexei Gonzalez-Estrada
- Division of Pulmonary, Allergy and Sleep Medicine, Department of Medicine, Mayo Clinic, Jacksonville, Fla
| | - Miguel Park
- Division of Allergic Diseases, Mayo Clinic, Rochester, Minn.
| |
Collapse
|
93
|
Jani YH, Williams I, Krishna MT. Sustaining and spreading penicillin allergy delabelling: A narrative review of the challenges for service delivery and patient safety. Br J Clin Pharmacol 2020; 86:548-559. [PMID: 31823385 DOI: 10.1111/bcp.14190] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/18/2019] [Accepted: 11/25/2019] [Indexed: 01/09/2023] Open
Abstract
Many patients report allergies to penicillin, although in over 90% of these the label of penicillin allergy is shown to be incorrect following comprehensive testing. Inappropriate and inaccurate penicillin allergy labelling is a barrier to antimicrobial stewardship and can lead to patient harm. This review assesses an emergent evidence base and trend favouring delabelling using direct oral penicillin challenges following a stratified risk assessment of the likelihood and existence of true penicillin allergy, to identify and make recommendations for key components for implementation in standard practice. Research to date has focussed on the feasibility and clinical and financial outcomes of these direct delabelling strategies. There is a paucity of studies exploring the views and engagement of patients and healthcare professionals, and a gap in the evidence for prerequisites to safely deliver, sustain and spread the implementation of such services across health systems.
Collapse
Affiliation(s)
- Yogini H Jani
- Centre for Medicines Optimisation Research and Education, UCLH NHS Foundation Trust & UCL School of Pharmacy, London, UK
| | - Iestyn Williams
- Health Services Management Centre, University of Birmingham, Birmingham, West Midlands, UK
| | - Mamidipudi Thirumala Krishna
- University Hospitals Birmingham NHS Foundation Trust and Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, West Midlands, UK
| |
Collapse
|
94
|
Sakoulas G, Geriak M, Nizet V. Is a Reported Penicillin Allergy Sufficient Grounds to Forgo the Multidimensional Antimicrobial Benefits of β-Lactam Antibiotics? Clin Infect Dis 2020; 68:157-164. [PMID: 29986019 DOI: 10.1093/cid/ciy557] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 07/07/2018] [Indexed: 12/18/2022] Open
Abstract
The majority of patients with reported penicillin allergy are not allergic when tested or challenged. Penicillin allergy testing has been shown to significantly reduce annual healthcare expenditures. Data have emerged showing β-lactams have multidimensional antibacterial effects in vivo, far beyond what is appreciated in standard bacteriological susceptibility testing media. These include enhancing bacterial killing by the innate immune system. Supporting the clinical relevance of these secondary underappreciated effects are recent clinical and pharmacoeconomic analyses that show worse outcomes in patients with reported penicillin allergies who receive non-β-lactam antibiotics when compared to their non-penicillin-allergic counterparts. This is particularly relevant in the treatment of Staphylococcus aureus bacteremia. This article reviews the tremendous advantages offered by β-lactam therapy and makes a strong case that the debunking of false penicillin allergies through a detailed allergy history and penicillin allergy testing should be a vital component of antimicrobial stewardship practices.
Collapse
Affiliation(s)
- George Sakoulas
- Sharp Memorial Hospital, San Diego, La Jolla.,School of Medicine, University of California, San Diego, La Jolla
| | | | - Victor Nizet
- School of Medicine, University of California, San Diego, La Jolla.,Skaggs School of Pharmacy, University of California, San Diego, La Jolla
| |
Collapse
|
95
|
Affiliation(s)
- Mariana Castells
- From Brigham and Women's Hospital, Boston (M.C.); UT Southwestern Medical Center, Dallas (D.A.K.); and Vanderbilt University Medical Center, Nashville (E.J.P.)
| | - David A Khan
- From Brigham and Women's Hospital, Boston (M.C.); UT Southwestern Medical Center, Dallas (D.A.K.); and Vanderbilt University Medical Center, Nashville (E.J.P.)
| | - Elizabeth J Phillips
- From Brigham and Women's Hospital, Boston (M.C.); UT Southwestern Medical Center, Dallas (D.A.K.); and Vanderbilt University Medical Center, Nashville (E.J.P.)
| |
Collapse
|
96
|
Abstract
Penicillin allergies are not always lifelong. Approximately 50% are lost over five years A reaction to penicillin during a childhood infection is unlikely to be a true allergy Only 1–2% of patients with a confirmed penicillin allergy have an allergy to cephalosporins. In patients with a low risk of severe allergic reactions, cephalosporins are a relatively safe treatment option Patients with a history of delayed non-severe reactions, such as mild childhood rashes that occurred over 10 years ago, may be suitable for an oral rechallenge with low-dose penicillin. This should be done in a supervised hospital environment In many cases, with appropriate assessment and allergy testing, it may be possible to remove the penicillin allergy label
Collapse
Affiliation(s)
- Misha Devchand
- Antimicrobial Stewardship, Drug and Antibiotic Allergy Service and Centre for Antibiotic Allergy and Research, Austin Health, Melbourne.,Pharmacy Department, Austin Health, Melbourne.,The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne.,Department of Medicine, Austin Health, University of Melbourne
| | - Jason A Trubiano
- Antimicrobial Stewardship, Drug and Antibiotic Allergy Service and Centre for Antibiotic Allergy and Research, Austin Health, Melbourne.,Pharmacy Department, Austin Health, Melbourne.,The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne.,Department of Medicine, Austin Health, University of Melbourne
| |
Collapse
|
97
|
|
98
|
Kleris RS, Lugar PL. Things We Do For No Reason™: Failing to Question a Penicillin Allergy History. J Hosp Med 2019; 14:704-706. [PMID: 30897049 PMCID: PMC6827537 DOI: 10.12788/jhm.3170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 12/21/2018] [Accepted: 01/19/2019] [Indexed: 01/24/2023]
Abstract
Inspired by the ABIM Foundation's Choosing Wisely® campaign, the "Things We Do for No Reason™" (TWDFNR) series reviews practices that have become common parts of hospital care but may provide little value to our patients. Practices reviewed in the TWDFNR series do not represent "black and white" conclusions or clinical practice standards but are meant as a starting place for research and active discussions among hospitalists and patients. We invite you to be part of that discussion.
Collapse
Affiliation(s)
- Renee S Kleris
- Department of Pediatrics, Duke University Medical Center. Durham, North Carolina
| | - Patricia L Lugar
- Department of Pediatrics, Duke University Medical Center. Durham, North Carolina
- Department of Medicine, Duke University Medical Center, Durham, North Carolina
- Corresponding Author: Patricia Lugar, MD, MS; E-mail: ; Telephone: 919-684-6122
| |
Collapse
|
99
|
Electronic Consultations in Allergy/Immunology. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2019; 7:2594-2602. [DOI: 10.1016/j.jaip.2019.05.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/08/2019] [Accepted: 05/18/2019] [Indexed: 11/20/2022]
|
100
|
Blumenthal KG, Ryan EE, Li Y, Lee H, Kuhlen JL, Shenoy ES. The Impact of a Reported Penicillin Allergy on Surgical Site Infection Risk. Clin Infect Dis 2019; 66:329-336. [PMID: 29361015 DOI: 10.1093/cid/cix794] [Citation(s) in RCA: 270] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 09/07/2017] [Indexed: 02/07/2023] Open
Abstract
Background A reported penicillin allergy may compromise receipt of recommended antibiotic prophylaxis intended to prevent surgical site infections (SSIs). Most patients with a reported penicillin allergy are not allergic. We determined the impact of a reported penicillin allergy on the development of SSIs. Methods In this retrospective cohort study of Massachusetts General Hospital hip arthroplasty, knee arthroplasty, hysterectomy, colon surgery, and coronary artery bypass grafting patients from 2010 to 2014, we compared patients with and without a reported penicillin allergy. The primary outcome was an SSI, as defined by the Centers for Disease Control and Prevention's National Healthcare Safety Network. The secondary outcome was perioperative antibiotic use. Results Of 8385 patients who underwent 9004 procedures, 922 (11%) reported a penicillin allergy, and 241 (2.7%) had an SSI. In multivariable logistic regression, patients reporting a penicillin allergy had increased odds (adjusted odds ratio, 1.51; 95% confidence interval, 1.02-2.22) of SSI. Penicillin allergy reporters were administered less cefazolin (12% vs 92%; P < .001) and more clindamycin (49% vs 3%; P < .001), vancomycin (35% vs 3%; P < .001), and gentamicin (24% vs 3%; P < .001) compared with those without a reported penicillin allergy. The increased SSI risk was entirely mediated by the patients' receipt of an alternative perioperative antibiotic; between 112 and 124 patients with reported penicillin allergy would need allergy evaluation to prevent 1 SSI. Conclusions Patients with a reported penicillin allergy had a 50% increased odds of SSI, attributable to the receipt of second-line perioperative antibiotics. Clarification of penicillin allergies as part of routine preoperative care may decrease SSI risk.
Collapse
Affiliation(s)
- Kimberly G Blumenthal
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston.,Medical Practice Evaluation Center, Massachusetts General Hospital, Boston.,Edward P. Lawrence Center for Quality and Safety, Massachusetts General Hospital, Boston.,Harvard Medical School, Boston
| | - Erin E Ryan
- Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston.,Infection Control Unit, Massachusetts General Hospital, Boston
| | - Yu Li
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston.,Medical Practice Evaluation Center, Massachusetts General Hospital, Boston
| | - Hang Lee
- Harvard Medical School, Boston.,Biostatistics Center, Massachusetts General Hospital, Boston
| | - James L Kuhlen
- Acadia Allergy and Immunology, Department of Medicine, University of South Carolina School of Medicine, Greenville, South Carolina
| | - Erica S Shenoy
- Medical Practice Evaluation Center, Massachusetts General Hospital, Boston.,Harvard Medical School, Boston.,Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston.,Infection Control Unit, Massachusetts General Hospital, Boston
| |
Collapse
|