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Safety, Efficacy, and Effectiveness of Delabeling in Patients with Multiple Drug Allergy Labels
Chandra Vethody1, Roger Yu1, Jacob M Keck2
1Division of Allergy and Immunology, Department of Medicine, Vanderbilt Asthma Sinus and Allergy Program, Vanderbilt University Medical Center, Nashville, Tenn.
Background:
Patients with multiple drug allergy labels (MDALs) present a challenging barrier to patient care.
Objective:
To assess the efficacy, safety, and effectiveness of removing MDALs in a single clinic visit.
Methods:
Retrospective chart review was performed from October 1, 2014, to October 31, 2018, on patients with MDALs who had electronic health record (EHR) allergy label to 2 or more drugs and who were delabeled to 1 or more drug. Our primary outcome was the number of allergy labels tested and removed, at a single or multiple visits. Postvisit surveys were administered to patients, their pharmacies, and primary care physicians for patients delabeled following an EHR transition from November 2, 2017, to October 31, 2018 (n = 184).
Results:
Among 536 patients meeting inclusion criteria, 916 of 943 (97.1%) tested allergy labels were removed from the EHR. Most patients, 461 of 536 (86.0%), were tested, challenged, and delabeled in a single visit, to 1 or more drug, although 134 of 536 (25%) still had evidence of 1 or more label at 1 year. In surveys, 90 of 171 (52.6%) responding pharmacies and 122 of 168 (72.6%) primary care physicians contacted had removed drug labels from the EHR as a result of the recommendations from the patient's drug allergy evaluation. Overall, 91 of 142 (64.1%) MDAL patient survey respondents were willing to take the drugs to which they had been delabeled.
Conclusions:
Patients with MDALs can be safely delabeled to multiple drugs in 1 visit; however, effectiveness barriers were identified. Reinforcement of drug allergy label removal information to patients, pharmacies, and primary care providers presents a targeted area for improvement.
Insights
Multiple drug allergy labels (MDALs) can be safely removed in a single visit, improving patient care. However, ensuring consistent label removal across healthcare providers requires further attention.
Area of Science:
- Clinical Medicine
- Allergy and Immunology
- Pharmacology
Background:
- Multiple drug allergy labels (MDALs) pose significant challenges in patient care.
- Accurate allergy labeling is crucial for safe and effective medication management.
Purpose of the Study:
- To evaluate the efficacy and safety of removing MDALs during a single clinical visit.
- To assess the effectiveness of drug allergy label removal in improving patient care.
Main Methods:
- Retrospective chart review of patients with MDALs from October 2014 to October 2018.
- Analysis of allergy label testing, removal, and patient outcomes.
- Post-visit surveys administered to patients, pharmacies, and primary care physicians.
Main Results:
- Over 97% of tested allergy labels were successfully removed from electronic health records (EHRs).
- Most patients (86%) were delabeled in a single visit, though 25% retained labels at one year.
- Physician and pharmacy confirmation of label removal varied, highlighting communication gaps.
Conclusions:
- Drug allergy label removal is safe and feasible in a single visit.
- Barriers to the effectiveness of MDAL removal persist, particularly in information dissemination.
- Improved communication strategies are needed to reinforce label removal with patients and providers.
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