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Pharmacotherapy. 2007 Jan;27(1):137-42.

Clinical importance of carbapenem hypersensitivity in patients with self-reported and documented penicillin allergy.

Author information

1
Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, New York 14260-1200, USA. prescott@buffalo.edu

Abstract

The risk of carbapenem hypersensitivity in patients with self-reported or documented penicillin allergy needs to be determined so that practitioners can make better-informed decisions regarding antibiotic therapy for this patient population. The risk of cross-reactivity between penicillin and carbapenem antibiotics initially was reported to approach 50%. Recent retrospective studies have suggested that the clinical risk of cross-hypersensitivity between these two drug classes is 9.2-11%, which is significantly lower than initially reported. Patients whose history of penicillin allergy is self-reported and is not type 1 may be at moderate risk for hypersensitivity when treated with a carbapenem antibiotic. The risk of hypersensitivity appears to be higher in patients whose penicillin allergy was documented by a health care provider, those with several antibiotic allergies, and those with a positive penicillin skin test result or a history of type 1 penicillin hypersensitivity.

PMID:
17192167
DOI:
10.1592/phco.27.1.137
[Indexed for MEDLINE]

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