Stroke RisksRelated to Carotid Artery Disease

• TIAs

  • 12-13% within the first year of symptoms
  • Cumulative stroke risk of 30-35% at 5 years

• Prior Stroke

  • Risk of 5-9% per year
  • 25-45% have another stroke within 5 years

• Ulceration

  • Increases risk of stroke from 17-30% in NASCET study

• Stenosis > 70% in asymptomatic patients

  • 2-5% per year

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