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Step up to a Healthier You with the Haldimand-Norfolk Health Unit

Vascular Disease

What is a Stroke?

  • A disruption of blood flow to part of the brain. 
  • Causes a sudden loss of brain function. 
  • The length of time the blood supply is cut off and the location of the blockage will determine the amount of damage to the brain tissue and the severity of the symptoms. 
  • A stroke can destroy up to 2 million brain cells per minute. 
  • Different parts of the brain control different functions, you may experience problems with the ability to move, see, remember, speak, reason, read and write. 
Types of stroke

Ischemic Stroke

  • Stroke occurs when an artery that feeds the brain becomes blocked by a blood clot.  

Hemorrhagic Stroke

  • Stroke occurs when there is a sudden rupture of an artery that feeds the brain, causing a bleeding stroke. 

Transient Ischemic Attack (TIA) also called a mini-stroke:

  • A blood clot stops blood from flowing to the brain for a short time.
  • A blocked artery re-opens.
  • The symptoms of a TIA are exactly the same as the symptoms of a stroke except they go away within a few minutes or hours.
  • It is a medical emergency - call 9-1-1 right away for medical attention.
  • It is an important warning sign that you are at an increased risk for a stroke.