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Stroke Information

Types of Stroke

The two types of stroke are ischemic (blood clot preventing blood flow to the brain) and hemorrhagic (bleeding directly into the brain). Both cause a lack of vital oxygen and nutrients to the brain, resulting in sudden neurologic symptoms. Stroke can ultimately lead to permanent brain tissue damage

Transient ischemic attack (TIA) occurs when the lack of blood flow is temporary and is restored. Neurologic symptoms usually last less than 24 hours; however, TIAs are serious because they can warn us that a potential ischemic stroke be imminent. People who suffer a TIA should seek urgent medical care in order to identify a possible source of an ischemic stroke, like atrial fibrillation of the heart or a significant narrowing in the arteries of the neck.

Risk Factors for Stroke

Controllable risk factors include:

  • Elevated blood pressure >120/80
  • Atrial fibrillation (irregular heartbeat)
  • Smoking
  • High cholesterol (>200)
  • Diabetes
  • Obesity
  • Lack of exercise
  • Heart disease

Uncontrollable risk factors include:

  • Age
  • Gender
  • Race
  • Family history
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