Cerebral Vascular Accident (CVA)
Cerebral Vascular accident is the sudden death of brain cells due to a problem with the blood supply. When blood flow to the brain is impaired, oxygen and important nutrients cannot be delivered. The result is injury and possible death of brain cells resulting in abnormal brain function. Blood flow to the brain can be disrupted by either a blockage or rupture of an artery to the brain.
Three types of strokes:
- Embolic or Ischemic Stroke (lack of blood flow)
- Caused by either blockage of a blood vessel via thrombosis (obstruction of a blood vessel by a blood clot forming locally) or arterial embolism (obstruction due to an embolus from elsewhere in the body), or by cerebral hypoperfusion (general decrease in blood supply).
- Hemorrhagic Stroke
- Caused by bleeding of blood vessels of the brain, either directly into the brain or into the subarachnoid space surrounding brain tissue
- TIA (Transient Ischemic Attack)
- Caused by a temporary clot, often called a “mini stroke”, These should be taken very seriously.