Implementation and Outcomes of Beta-Lactam Allergy Management Protocol at a Comprehensive Cancer Center

Wonhee So, Sohanabanu I. Khalak,Stephanie Ho,Justine Abella Ross,Sanjeet S. Dadwal,Alfredo G. Puing,Deepa D. Nanayakkara, Avneet Kaur,Randy A. Taplitz,Jana K. Dickter

Infection（2024）

Western University of Health Sciences | CVS Pharmacy | City of Hope | Yale School of Medicine

Cited 0|Views7

Abstract

Beta-lactam allergy (BLA) is associated with increased broad-spectrum antibiotic (Br-ABX) use and worse clinical outcomes. We evaluated our hospital-wide BLA protocol (BLA-P) that used following categories: intolerance, low-risk, and high-risk. Hospitalized adult patients with listed BLA during 10/2021–12/2022 were eligible. Exclusions were critically ill, surgical, hospice or comfort care, or non-verbal patients. Assessment was counted each time a pharmacist evaluated BLA. Interventions were no further action (high-risk allergy, patient refusal, unstable clinical status), updated allergy label, or delabeled. Delabeling was done either based on antibiotic history (direct-delabeling), or via test-dose challenge for low-risk patients. Br-ABX usage was compared in the unique delabeled patients: the empiric antibiotic use 90 days post-delabeling versus pre-delabeling using McNemar test (SPSS). A total of 700 assessments in 631 patients were identified. 441 assessments in 377 patients (median 63 years-old, 41

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Key words

Beta-lactam,Allergy,Test-dose challenge,Delabeling,Cancer

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