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Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
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Contrast Extravasation Mimicking Subarachnoid Hemorrhage After Cardiac Catheterization

Syed A Huda1, Moeed Ahmed2, Parth J Sampat1

  • 1Internal Medicine, State University of New York (SUNY) Upstate Medical University, Syracuse, USA.

Cureus
|August 22, 2020
PubMed

Insights

Neurological complications from coronary angiography are rare. Contrast media can mimic subarachnoid hemorrhage on CT scans, but MRI can differentiate it from actual bleeding.

Area of Science:

  • Neurology
  • Radiology
  • Cardiology

Background:

  • Neurological complications following coronary angiography, though uncommon, carry substantial risks.
  • These complications encompass ischemic stroke, hemorrhagic stroke, and transient ischemic attacks.

Observation:

  • Contrast media, rarely, can breach the blood-brain barrier, inducing temporary neurological symptoms like confusion and seizures.
  • In one case, a patient experienced confusion post-cardiac angiography, with initial brain CT suggesting subarachnoid hemorrhage (SAH).

Findings:

  • Magnetic Resonance Imaging (MRI) is crucial for distinguishing between blood and contrast media in the brain.
  • The patient's brain MRI revealed no actual hemorrhage, confirming contrast staining rather than SAH.

Implications:

  • This case highlights the importance of advanced imaging like MRI in accurately diagnosing neurological events after angiography.
  • Differentiating contrast staining from true hemorrhage is vital for appropriate patient management and preventing unnecessary interventions.

Keywords:
contrast extravasationcontrast toxicitycoronary angiographysubarachnoid hemorrhage

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