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Related Experiment Video

Updated: May 29, 2025

Surgical Treatment of an Endolymphatic Sac Tumor
04:34

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Published on: May 26, 2023

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Facial Edema After Nuclear Stress Test.

Emily Saurborn1, Danielle Roth1, Shane Cook1

  • 1Dermatology, Marshall University Joan C. Edwards School of Medicine, Huntington, USA.

Cureus
|February 3, 2025
PubMed
Summary

Angioedema, a condition of fluid buildup, can be life-threatening. This case highlights a rare instance of drug-induced angioedema from a technetium-99m sestamibi tracer during a nuclear stress test.

Keywords:
angioedemadermatologic presentationdrug-related side effects and adverse reactionsnuclear stress testradiotracer

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Area of Science:

  • Medical Science
  • Pharmacology
  • Cardiology

Background:

  • Angioedema is characterized by interstitial fluid accumulation, potentially causing life-threatening laryngeal edema.
  • While often allergic and histamine-mediated, angioedema can also result from bradykinin pathway activation.
  • Bradykinin-mediated angioedema is associated with hereditary C1q esterase deficiency and certain medications.

Observation:

  • Drug-induced angioedema is frequently linked to non-steroidal anti-inflammatory drugs (NSAIDs) and sulfa drugs.
  • Healthcare providers must recognize potential medication side effects.
  • A case of angioedema occurred following technetium-99m sestamibi injection during an adenosine nuclear stress test.

Findings:

  • This case demonstrates angioedema as an adverse reaction to technetium-99m sestamibi.
  • The event occurred in the context of a diagnostic nuclear cardiology procedure.
  • This suggests a potential bradykinin-mediated mechanism for this specific drug-induced angioedema.

Implications:

  • Highlights the importance of considering rare drug reactions in diagnostic procedures.
  • Emphasizes the need for vigilance regarding medication side effects, even with radiotracers.
  • Suggests further investigation into the mechanisms of radiotracer-induced angioedema.