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Remotely Triggered LAD Occlusion Using a Balloon Catheter in Spontaneously Breathing Mice
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Reversible hyperintense lesion after balloon occlusion test.

Koichi Haraguchi1, Kiyohiro Houkin, Izumi Koyanagi

  • 1Department of Neurosurgery, Sapporo Medical University, Sapporo, Japan. haraguchi@yushinkai.jp

Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging
|September 17, 2008
PubMed
Summary

A unique case revealed reversible brain swelling and temporary neurological issues after a balloon occlusion test. This vasogenic edema resulted from a weakened blood-brain barrier due to hypertension and ischemia.

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Area of Science:

  • Neurology
  • Radiology
  • Vascular Medicine

Background:

  • Uncontrolled hypertension poses significant risks to cerebrovascular integrity.
  • Balloon occlusion tests are crucial for evaluating cerebrovascular disease but can induce transient ischemia.
  • Blood-brain barrier (BBB) disruption is a key pathological mechanism in various neurological conditions.

Observation:

  • A patient presented with transient neurological deficits during a balloon occlusion test.
  • Magnetic resonance (MR) imaging revealed a reversible high signal intensity lesion.
  • The observed lesion correlated temporally with the neurological deficits and the test.

Findings:

  • The high signal intensity lesion on MR imaging was diagnosed as vasogenic edema.
  • This edema was attributed to blood-brain barrier disruption.
  • The disruption was likely caused by a combination of chronic uncontrolled hypertension and acute ischemia from the balloon occlusion test.

Implications:

  • This case highlights the potential for reversible vasogenic edema following balloon occlusion tests in hypertensive patients.
  • Understanding BBB dynamics is critical for interpreting imaging findings in patients with cerebrovascular risk factors.
  • The findings underscore the importance of managing hypertension to prevent severe cerebrovascular events.