Stroke is a leading cause of death and disability in North America. It is a medical emergency. Researchers estimate every year approximately 500,000 Americans have a first stroke and approximately 20-percent die within 30-days. The two types of stroke are ischemic stroke and hemorrhagic stroke. The most common type of stroke is ischemic (85-percent) and occurs when the artery that supplies oxygenated blood to the brain becomes blocked by a blood clot. Hemorrhagic strokes occur when an artery in the brain leaks blood or ruptures, which can damage brain cells by exerting pressure.
Ten risk factors for stroke are…
Having a stroke puts an individual at increased risk for having another, or recurrent, stroke. The National Stroke Association estimates at least 25- to 35-percent of Americans who have a stroke each year will have a recurrent stroke within their lifetime. Within 5-years of an initial stroke, the risk for recurrent stroke can increase more than 40-percent. Within 5-years of a stroke, 24-percent of women and 42-percent of men will experience a recurrent stroke.
A transient ischemic attack, also referred to as a mini-stroke, may have the same symptoms as a stroke, but the symptoms resolve in minutes to hours (usually less than 24 hours). Symptoms may include weakness, trouble speaking, vision problems, headache, and dizziness. TIA is a medical emergency because it puts individuals at increased for stroke. According to the National Stroke Association 40-percent of individuals who have a TIA will have an actual stroke. Nearly 50-percent of all strokes occur within a few days after TIA.