Many Strokes Happen During Sleep

What You Must Know About Wake-Up Strokes

Leukemia patients may benefit from a radical new form of immune therapy if a new study proves to be true.

Most of us are aware of how serious a stroke can be. It can cause long-term disability and is the third leading cause of death in the United States. Each year about 795,000 people suffer a stroke. Nearly three-quarters of all strokes occur in people over the age of 65 and the risk of having one doubles each decade after the age of 55. 

And a new study adds to the list of grim statistics: about 14 percent of ischemic strokes (or one in seven) occur during sleep and are considered “wake-up strokes.” (Ischemic strokes occur when the blood supply to part of the brain is cut off.)

Researchers from the Department of Neurology at the University of Cincinnati, who published their report in the journal Neurology, found that among 1854 ischemic strokes that occurred among residents of the Greater Cincinnati/Northern Kentucky region, 273 were wake-up strokes.

The only proven treatment for ischemic stroke is tissue plasminogen activator (TPA), which must be given quickly - within 4.5 hours of the last activator, which must be given within 4.5 hours of the last time a patient was known to be well. That’s why it’s important for anyone who wakes up with symptoms of a stroke to get to the hospital as soon as possible. 

Tissue plasminogen activator is injected into the bloodstream through an intravenous line and travels in the blood until it reaches the clot that blocking the blood supply and causing the stroke. Once there it begins to break up the clot until blood can flow past it.   According to the National Stroke Association, symptoms of a stroke include: • Sudden paralysis or weakness in the face or limbs, especially on one side of the body • Sudden problems with balance or walking • Sudden vision problems • Slurred speech • Sudden confusion or problems speaking or understanding simple statements • Sudden severe headache with no apparent cause Robin Westen is ThirdAge’s medical reporter. Check for her daily updates. See what others have to say about this story or leave a comment of your own.      
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