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Immunol Allergy Clin North Am. 2017 Nov;37(4):643-662. doi: 10.1016/j.iac.2017.07.001. Epub 2017 Sep 1.

Penicillin and Beta-Lactam Hypersensitivity.

Author information

1
Division of Allergy and Immunology, UT Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390, USA.
2
Division of Allergy and Immunology, The Corvallis Clinic, 3680 NW Samaritan Dr, Corvallis, OR 97330, USA; Oregon State University/Oregon Health & Science University College of Pharmacy, 1601 SW Jefferson Way, Corvallis, OR 97331, USA. Electronic address: roland.solensky@corvallisclinic.com.

Abstract

Ten percent of patients report penicillin allergy, but more than 90% of these individuals can tolerate penicillins. Skin testing remains the optimal method for evaluation of possible IgE-mediated penicillin allergy and is recommended by professional societies, as the harms for alternative antibiotics include antimicrobial resistance, prolonged hospitalizations, readmissions, and increased costs. Removal of penicillin allergy leads to decreased utilization of broad-spectrum antibiotics, such as fluoroquinolones and vancomycin. There is minimal allergic cross-reactivity between penicillins and cephalosporins. IgE-mediated allergy to cephalosporins is usually side-chain specific and may warrant graded challenge with cephalosporins containing dissimilar R1 or R2 group side chains.

KEYWORDS:

Allergy; Beta-lactam; Hypersensitivity; Penicillin

PMID:
28965632
DOI:
10.1016/j.iac.2017.07.001
[Indexed for MEDLINE]

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