Differences in the Recurrence Rate of Immediate Adverse Drug Reactions According to the Components of Alternative Contrast Media: Analysis of Repetitive Computed Tomography Cases in a Single Tertiary Hospital

Sung-Ryeol Kim, Nak-Hoon Son, Hye Jung Park, Kyung Hee Park, Jung-Won Park and Jae-Hyun Lee ()
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Sung-Ryeol Kim: Yongin Severance Hospital, Yonsei University College of Medicine
Nak-Hoon Son: Keimyung University
Hye Jung Park: Gangnam Severance Hospital, Yonsei University College of Medicine
Kyung Hee Park: Yonsei University College of Medicine
Jung-Won Park: Yonsei University College of Medicine
Jae-Hyun Lee: Yonsei University College of Medicine

Drug Safety, 2022, vol. 45, issue 9, No 7, 995-1002

Abstract: Abstract Introduction The recurrence rates of immediate adverse drug reactions (ADRs) to the alternative radiocontrast media (RCM) are not well known. Previous studies suggest selection of alternative RCM considering carbamoyl side chains; however, its usefulness for preventing the recurrence of ADRs has not been clearly verified. Objective The aim of this study was to verify the recurrence rate of immediate ADRs according to the alternative RCM. Method This retrospective study analyzed 6420 contrast-enhanced computed tomography (CT) cases of 2009 patients registered in the ADR system from 861,664 CT cases in a single tertiary hospital between 2015 and 2020. Iohexol, iopromide, iobitridol, and iopamidol were used for CT. According to the carbamoyl side chains present, iohexol belongs to group 1, iopromide belongs to groups 1 and 2, iobitridol belongs to group 2, and iopamidol belongs to group 3. Results Replacing iobitridol with iopamidol (odds ratio [OR] 2.595, 95% confidence interval [CI] 1.48–4.550) or iopromide (OR 3.354, 95% CI 1.420–7.926) as the subsequent RCM was associated with increased recurrence, while replacing iopamidol with iobitridol (OR 0.506, 95% CI 0.282–0.908) and iopromide with iohexol (OR 0.355, 95% CI 0.177–0.711) was associated with decreased recurrence. Other changes did not influence the recurrence of ADRs. Conclusions The recurrence of immediate ADRs increased in certain RCM combinations of preceding and subsequent CT scans, and the RCMs did not show cross-reactivity. Therefore, the clinical benefit of the alternative RCM considering cross-reactivity is limited. This result suggests that the side chains of RCM do not have an important role in the recurrence of immediate ADRs.

Date: 2022
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DOI: 10.1007/s40264-022-01213-z

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