Thursday, October 24, 2013

Stroke incidence rising dramatically among younger people

Over the last 20 years there has been a 25% increase in stroke cases among 20 to 64 year old's. In studies funded by the Bill and Melinda Gates Foundation, and published in The Lancet, the burden of stroke between the years 1990 to 2010 was found to cause over 61% of disability, and more than of 51% of deaths. The cause; hemorrhagic strokes.

Traditionally, as reported by the CDC, hemorrhagic strokes account for only 15% of this condition in the U.S.

Stroke Types:
Types of Stroke
Source: CDC
Ischemic Stroke is when blood flow to the brain is blocked by blood clots or fatty deposits also known as plaque in blood vessel linings. Blockages lead to tissue death quite quickly. A Transient ischemic attack (TIA) is a "wake up call" or "mini-stroke" that does not result in lasting damage. Recognizing and treating TIAs immediately can reduce the risk of a major stroke.

Hemorrhagic strokes are caused when a blood vessel bursts in the brain. There are two types; An Intracerebral hemorrhage floods the surrounding tissue with blood and is the more common type. The other type is Subarachnoid hemorrhage which results in bleeding in the area between the brain and the thin tissues that cover it.

Sources:
-TheLancet.com. "Global and regional burden of stroke during 1990–2010: findings from the Global Burden of Disease Study 2010 : The Lancet." Accessed October 24, 2013. http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(13)61953-4/fulltext
-Centers for Disease Control and Prevention. "CDC - DHDSP - Types of Stroke." Accessed October 24, 2013. http://www.cdc.gov/stroke/types_of_stroke.htm

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