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Updated: May 10, 2026

Bilateral Common Carotid Artery Occlusion as an Adequate Preconditioning Stimulus to Induce Early Ischemic Tolerance to Focal Cerebral Ischemia
Published on: May 9, 2013
Poor outcome associated with probable bilateral extracranial ICA vasospasm
Nobufusa Nobuhiro Sawa1, Hiroshi Kataoka, Satoshi Ueno
1Department of Neurology, Nara Medical University, Kashihara, Japan.
This case study documents a rare instance of bilateral extracranial internal carotid artery (ICA) vasospasm. The condition led to progressive narrowing of the arteries and ultimately resulted in patient death.
Area of Science:
- Neurology
- Vascular Medicine
- Radiology
Background:
- Internal carotid artery (ICA) vasospasm is a rare condition.
- Extracranial ICA vasospasm is even rarer, with few documented cases.
Observation:
- A woman presented with bilateral extracranial internal carotid artery (ICA) vasospasm.
- Initial MRI revealed white matter lesions; CT showed evolving infarcts in anterior and middle cerebral arteries.
- CT angiography demonstrated marked, elongated narrowing of both ICAs and low density in ACA and MCA territories.
Findings:
- The patient experienced neurological deterioration.
- Progressive stenosis of bilateral extracranial ICAs was observed.
- The case represents the first documentation of bilateral ICA spasm causing elongated narrowing of these vessels.
Implications:
- This case highlights the severe potential consequences of bilateral extracranial ICA vasospasm.
- It underscores the importance of advanced imaging in diagnosing and monitoring this condition.
- Further research into the pathophysiology and treatment of extracranial ICA vasospasm is warranted.
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