AUTHOR=Gracia Bara M. Teresa , Gallardo-Higueras Alicia , Moreno Esther M. , Laffond Elena , Muñoz Bellido Francisco J. , Martin Cristina , Sobrino Miriam , Macias Eva , Arriba-Méndez Sonia , Castillo Rosita , Davila Ignacio TITLE=Hypersensitivity to Gadolinium-Based Contrast Media JOURNAL=Frontiers in Allergy VOLUME=3 YEAR=2022 URL=https://www.frontiersin.org/journals/allergy/articles/10.3389/falgy.2022.813927 DOI=10.3389/falgy.2022.813927 ISSN=2673-6101 ABSTRACT=

Gadolinium-based contrast agents (GBCAs) are frequently used in magnetic resonance imaging (MRI) examinations to increase sensitivity in diagnoses. Recently, an increase in the description of hypersensitivity reactions to GBCAs has been detected. We performed research in PubMed, PubMed, SCOPUS, and EMBASE until September 2021, searching for studies regarding immediate and delayed hypersensitivity reactions to gadolinium-based contrast agents in which an allergy study was performed. The initial research identified 149 articles written in English. After excluding articles duplicated and articles that had irrelevant designs, 26 articles were included. Finally, 17 studies concerning immediate reactions, six studies concerning non-immediate reactions, and three concerning both that performed allergy evaluations were selected. In the review, we analyzed the characteristics of immediate and delayed reactions and the results of the allergy study and cross-reactivity. Skin tests seem to have acceptable accuracy, but drug provocation tests are still needed when skin tests are negative o to find alternative agents. Although cross-reactivity patterns are not well established, cross-reactivity seems to exist among macrocyclic agents. Notwithstanding, the number of patients analyzed is low and further studies are required. A management algorithm is suggested.