#66 – The Swinging PEN-dulum: Evolving Approaches to Cephalosporin Use in Penicillin Allergic Patients
Breakpoints
Is Side Chains Really a Good Teaching Tool?
Eric: I think there's like argument A is like real world denominator, right? So it makes these rates super low. And then sort of argument B is patient level sort of denominator, which makes these rates a bunch different. Eric: In a person who has anaphylaxis, I'd be much more concerned about side chain reactivities. But in the vast majority of people you see, it's not a big risk. We will have copious show notes to have the data citations of these studies that our experts are alluding to from Dr. Ramano, Dr. Picard, and others.
Dr. Kimberly Blumenthal (@KimberlyBlumen1), Dr. Meghan Jeffres (@PharmerMeg), and Dr. Eric Macy (@EricMacyMD) join Dr. Julie Ann Justo (@julie_justo) to summarize the history of cephalosporin avoidance in penicillin allergies, evidence-based pros and cons of giving cephalosporins in penicillin allergy, how to leverage technology to improve treatment of patients with penicillin allergies, and much more!
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References
- Macy E. Why Was There Ever a Warning Not to Use Cephalosporins in the Setting of a Penicillin "Allergy"? J Allergy Clin Immunol Pract. 2021 Nov;9(11):3929-3933. doi: 10.1016/j.jaip.2021.06.059. PMID: 34303019.
- Liang EH, et al. Adverse Reactions Associated with Penicillins, Carbapenems, Monobactams, and Clindamycin: A Retrospective Population-based Study. J Allergy Clin Immunol Pract. 2020 Apr;8(4):1302-1313.e2. doi: 10.1016/j.jaip.2019.11.035. PMID: 31821919.
- Macy E, Contreras R. Adverse reactions associated with oral and parenteral use of cephalosporins: A retrospective population-based analysis. J Allergy Clin Immunol. 2015 Mar;135(3):745-52.e5. doi: 10.1016/j.jaci.2014.07.062. PMID: 25262461.
- Macy E, et al. Population-Based Incidence of New Ampicillin, Cephalexin, Cefaclor, and Sulfonamide Antibiotic "Allergies" in Exposed Individuals with and without Preexisting Ampicillin, Cephalexin, or Cefaclor "Allergies". J Allergy Clin Immunol Pract. 2022 Feb;10(2):550-555. doi: 10.1016/j.jaip.2021.10.043. PMID: 34757066.
- Picard M, et al. Cross-Reactivity to Cephalosporins and Carbapenems in Penicillin-Allergic Patients: Two Systematic Reviews and Meta-Analyses. J Allergy Clin Immunol Pract. 2019 Nov-Dec;7(8):2722-2738.e5. doi: 10.1016/j.jaip.2019.05.038. PMID: 31170539.
- Romano A, et al. Cross-reactivity and tolerability of aztreonam and cephalosporins in subjects with a T cell-mediated hypersensitivity to penicillins. J Allergy Clin Immunol. 2016 Jul;138(1):179-186. doi: 10.1016/j.jaci.2016.01.025. PMID: 27016799.
- Romano A, et al. Cross-Reactivity and Tolerability of Cephalosporins in Patients with IgE-Mediated Hypersensitivity to Penicillins. J Allergy Clin Immunol Pract. 2018 Sep-Oct;6(5):1662-1672. doi: 10.1016/j.jaip.2018.01.020. PMID: 29408440.
- Blumenthal KG, et al. The Impact of a Reported Penicillin Allergy on Surgical Site Infection Risk. Clin Infect Dis. 2018 Jan 18;66(3):329-336. doi: 10.1093/cid/cix794. PMID: 29361015.
- Blumenthal KG, et al. Risk of meticillin resistant Staphylococcus aureus and Clostridium difficile in patients with a documented penicillin allergy: population based matched cohort study. BMJ. 2018 Jun 27;361:k2400. doi: 10.1136/bmj.k2400. PMID: 29950489.
- Blumenthal KG, et al. Recorded Penicillin Allergy and Risk of Mortality: a Population-Based Matched Cohort Study. J Gen Intern Med. 2019 Sep;34(9):1685-1687. doi: 10.1007/s11606-019-04991-y. PMID: 31011962.
- Macy E, Contreras R. Health care use and serious infection prevalence associated with penicillin "allergy" in hospitalized patients: A cohort study. J Allergy Clin Immunol. 2014 Mar;133(3):790-6. doi: 10.1016/j.jaci.2013.09.021. PMID: 24188976.
- AAAI. Choosing Wisely. 2014 Mar 3. https://www.choosingwisely.org/clinician-lists/american-academy-allergy-asthma-immunlogy-non-beta-lactam-antibiotics-penicillin-allergy/
- Jeffres MN, et al. Systematic review of professional liability when prescribing β-lactams for patients with a known penicillin allergy. Ann Allergy Asthma Immunol. 2018 Nov;121(5):530-536. doi: 10.1016/j.anai.2018.03.010. PMID: 29551402.
- Macy E, et al. Association Between Removal of a Warning Against Cephalosporin Use in Patients With Penicillin Allergy and Antibiotic Prescribing. JAMA Netw Open. 2021 Apr 1;4(4):e218367. doi: 10.1001/jamanetworkopen.2021.8367. PMID: 33914051.
- Blumenthal KG, et al. Addressing Inpatient Beta-Lactam Allergies: A Multihospital Implementation. J Allergy Clin Immunol Pract. 2017 May-Jun;5(3):616-625.e7. doi: 10.1016/j.jaip.2017.02.019. PMID: 28483315.
- Jeffres M. Penicillin and/or Beta-Lactam Allergy Tip Sheet & Cross-reactivity Table. https://drive.google.com/file/d/1cokYXnSDlO3vk8ke1LaalPz4iavuNSV8/view?usp=share_link
- Khan DA, et al. Drug allergy: A 2022 practice parameter update. J Allergy Clin Immunol. 2022 Sep 17:S0091-6749(22)01186-1. doi: 10.1016/j.jaci.2022.08.028. Epub ahead of print. PMID: 36122788.
- Guyer AC, et al. Allergy Electronic Health Record Documentation: A 2022 Work Group Report of the AAAAI Adverse Reactions to Drugs, Biologicals, and Latex Committee. J Allergy Clin Immunol Pract. 2022 Nov;10(11):2854-2867. doi: 10.1016/j.jaip.2022.08.020. PMID: 36151034.
- Iammatteo M, et al. Safety and Outcomes of Oral Graded Challenges to Amoxicillin without Prior Skin Testing. J Allergy Clin Immunol Pract. 2019 Jan;7(1):236-243. doi: 10.1016/j.jaip.2018.05.008. PMID: 29802906.
- Bavbek S, et al. Determinants of nocebo effect during oral drug provocation tests. Allergol Immunopathol (Madr). 2015 Jul-Aug;43(4):339-45. doi: 10.1016/j.aller.2014.04.008. PMID: 25088674.
- DePestel DD, et al. Cephalosporin use in treatment of patients with penicillin allergies. J Am Pharm Assoc (2003). 2008 Jul-Aug;48(4):530-40. doi: 10.1331/JAPhA.2008.07006. PMID: 18653431.
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