Stroke

Overview

Stroke is number 1 cause of disability, number 2 cause of dementia and 3rd cause of death in Canada.

Between 2008 and 2009, over 10,500 people in BC had been diagnosed with stroke for the first time. In which, more than 4,500 people had severe stroke and needed hospitalization.
In every 100 first time stroke victims:

  • 27 died
  • 5 became severely disable, which required long-term care

Because of stroke, health care expenses in B.C. are more than $330 million

Provided by Dr. Samuel Yip and Dr. Thomas Ho    


Ischemic Stroke
When blood supply to the brain is interrupted, oxygen and nutrients cannot be transported to the brain, causing brain cell death. As a result, the respective body functions that are controlled by the damaged parts of the brain will be affected.

Ischemic Stroke

How to diagnose ischemic stroke?
The doctor will check the condition that has occurred and

  1. Will consider the following information about a patient’s health:
    1. Onset of stroke symptoms.
    2. Patient's medical history
    3. Patient’s current medication
    4. Any drug allergy.
    5. Past history of stroke or cerebral hemorrhage.
    6. Risk factors of stroke.
    7. Past surgery, or bleeding problems.
  2. Conduct physical and neurological examination
  3. Will prepare for certain laboratory tests (e.g. blood test)
  4. Will prepare for CT scan or CTA scan
  5. Study Other potentially useful diagnostic test results

CT (computered tomography) scan - uses  X-ray to an image of the brain.
CTA (computed tomography angiography) - injection of a special dye into the patient's vein, and photograph an image of blood vessels to identify anomalies, such as aneurysms.

How is Ischemic stroke treated?
During the time of stroke, the goal of treatment is to use the shortest amount of time to dissolve blood clots, restore the blood supply to the brain as soon as possible. The goal is to minimize the damage to the brain to as little as possible.

The only US Food and Drug Administration (FDA) approved drug treatment of ischemic stroke is Tissue Plasminogen Activator (tPA). tPA is a clot dissolving drug. It must be taken within 4.5 hours after the onset of stroke symptoms.

Provided by Dr. Samuel Yip