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Extracranial cerebrovascular disease.

N S Lee1, H R Jones

  • 1Department of Neurology, Lahey Clinic Medical Center, Burlington, Massachusetts.

Cardiology Clinics
|August 11, 1991
PubMed
Summary

Atherosclerotic vascular disease is the primary cause of transient ischemic attack (TIA) and stroke. Carotid endarterectomy is recommended for severe carotid stenosis, but management should be individualized based on pathophysiology.

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Area of Science:

  • Neurology
  • Vascular Surgery
  • Cardiology

Background:

  • Extracranial cerebrovascular disease significantly impacts transient ischemic attack (TIA) and stroke prevention, management, and prognosis.
  • Atherosclerotic vascular disease is the most common underlying pathophysiologic mechanism.
  • Individualized management strategies are crucial due to controversial treatment approaches.

Purpose of the Study:

  • To review the pathophysiologic mechanisms of extracranial cerebrovascular disease.
  • To discuss current management strategies for TIA and stroke.
  • To evaluate the efficacy of carotid endarterectomy versus medical therapy.

Main Methods:

  • Review of recent data and clinical guidelines.
  • Analysis of outcomes for carotid endarterectomy in symptomatic carotid stenosis.
  • Discussion of treatment for specific conditions like intimal dissection, arteritis, and fibromuscular dysplasia.

Main Results:

  • Carotid endarterectomy is superior to medical therapy for appropriate patients with critical carotid stenosis.
  • The procedure requires excellent neuroradiologic support and surgical expertise, with a complication risk below 3%.
  • Intimal dissection has a good prognosis; symptomatic patients benefit from short-term antiplatelet or anticoagulant therapy.
  • Corticosteroids are indicated for extracranial arteritis.
  • Fibromuscular dysplasia is not definitively linked to increased stroke or TIA risk.

Conclusions:

  • Management of extracranial cerebrovascular disease should be tailored to the specific pathophysiologic mechanism.
  • Carotid endarterectomy is a highly effective treatment for selected patients with severe symptomatic carotid stenosis.
  • Further research may refine treatment protocols for various etiologies of TIA and stroke.

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