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Managing Adverse Reactions to Contrast Agents.

Brian Boyd1, Carlos A Zamora2, Mauricio Castillo3

  • 1Division of Neuroradiology, Department of Radiology, University of North Carolina School of Medicine, 2107 Old Clinic Building, Campus Box 7510, Chapel Hill, NC 27599-7510, USA.

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PubMed
Summary

Adverse reactions to iodinated and gadolinium-based contrast agents are rare (<1%). Skin testing and premedication can help manage allergic-like reactions, while prompt assessment and treatment are crucial for patient safety.

Keywords:
AdverseAllergicAnaphylactoidContrastGadoliniumIodinatedReaction

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Area of Science:

  • Radiology
  • Pharmacology
  • Allergy and Immunology

Background:

  • Iodinated and gadolinium-based contrast agents are widely used in medical imaging.
  • Adverse reactions to these agents occur in less than 1% of cases.
  • The precise mechanisms underlying these reactions are not fully elucidated.

Purpose of the Study:

  • To review the management of adverse reactions to iodinated and gadolinium-based contrast agents.
  • To provide guidance on the use of skin testing and premedication.
  • To emphasize the importance of prompt recognition and treatment of contrast reactions.

Main Methods:

  • Review of existing literature and clinical guidelines.
  • Discussion of diagnostic and therapeutic strategies for contrast agent reactions.
  • Emphasis on team preparedness and established protocols.

Main Results:

  • Adverse reactions are uncommon but require appropriate management.
  • Skin testing can guide the selection of alternative contrast agents in patients with prior severe reactions.
  • Premedication is indicated for patients with a history of allergic-like reactions.

Conclusions:

  • Healthcare teams must be knowledgeable about contrast reaction signs and symptoms.
  • Established action plans for contrast reactions should be in place and regularly practiced.
  • Proactive strategies like skin testing and judicious premedication can enhance patient safety.