Published in:
Open Access 01-12-2016 | Research
Prevalence of beta-lactam allergy: a retrospective chart review of drug allergy assessment in a predominantly pediatric population
Published in: Allergy, Asthma & Clinical Immunology | Issue 1/2016
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Background
Research suggests that 90% of patients labeled beta-lactam allergic are able to tolerate penicillins following further assessment. This study aims to define and describe the frequency of true beta-lactam allergy following allergy patient evaluation in a predominantly pediatric population.
Methods
306 primary care patients referred between January 2010 and June 2015 were assessed for a suspected beta-lactam allergy. Patient demographics, history and test results were extracted from electronic medical records. Testing performed was based on specialist recommendation following review of patient history.
Results
34% of the study participants had intradermal testing. Oral challenge was given to 96.7% of the sample. 96% of patients with a prior history of beta-lactam allergy were advised that they could re-introduce beta-lactam antibiotics following evaluation.
Conclusions
Among patients with a documented beta-lactam allergy or a recent history of a reaction there is a low rate of ‘true’ beta-lactam allergy. Consistent evaluation of beta-lactam antibiotic allergies can reduce rates of broad spectrum antibiotic prescribing, among other harmful consequences.