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Related Experiment Videos

Intracranial vertebral endarterectomy.

J I Ausman1, F G Diaz, B Sadasivan

  • 1Henry Ford Neurosurgical Institute, Department of Neurological Surgery, Henry Ford Hospital Division, Detroit, Michigan.

Neurosurgery
|March 1, 1990
PubMed
Summary

Intracranial vertebral endarterectomy for vertebrobasilar insufficiency showed mixed results. Superficial temporal artery to superior cerebellar artery bypass may offer better outcomes for intracranial vertebral artery stenosis.

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Area of Science:

  • Neurosurgery
  • Vascular Surgery
  • Neurology

Background:

  • Vertebrobasilar insufficiency (VBI) poses significant neurological risks.
  • Medical therapy often fails in cases of severe intracranial vertebral artery stenosis.
  • Surgical intervention is considered when conservative treatments are ineffective.

Observation:

  • Six patients with medically refractory VBI underwent intracranial vertebral endarterectomy.
  • Stenotic lesions were located in the intracranial vertebral artery, often with contralateral compromise.
  • Stenosis location relative to the posterior inferior cerebellar artery (PICA) influenced outcomes.

Findings:

  • Endarterectomy success varied: two patients had patent arteries and symptom resolution, one improved despite occlusion, and one had persistent symptoms.

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  • Complications included cerebellar infarction, death, and Wallenburg syndrome.
  • Superficial temporal artery to superior cerebellar artery anastomosis demonstrated superior results compared to endarterectomy.

    • Implications:

    • Intracranial vertebral endarterectomy is a high-risk procedure with variable outcomes.
    • Patient selection is critical: limit use to disabling symptoms, proximal lesions, and adequate collateral circulation.
    • Vascular bypass procedures may be a more favorable alternative for intracranial vertebral artery stenosis.