Featured Research

from universities, journals, and other organizations

One In Eight Strokes Is Preceded By 'Warning Stroke'

Date:
September 29, 2009
Source:
American Academy of Neurology
Summary:
One out of every eight strokes is preceded by a "warning stroke," which is a transient ischemic attack (TIA) or mild stroke, according to new research.

One out of every eight strokes is preceded by a "warning stroke," which is a transient ischemic attack (TIA) or mild stroke, according to research published in the September 29, 2009, print issue of Neurology, the medical journal of the American Academy of Neurology.

"These results illustrate the need for better risk assessment tools for preventing strokes before they occur," said study author Daniel G. Hackam, MD, PhD, of the University of Western Ontario in London, ON. "Other studies have shown that up to 80 percent of strokes after TIA can be prevented when risk factors are managed intensively."

For the study, researchers identified all people at Ontario hospitals with a diagnosis of stroke over four years. Of the 16,400 patients, 2,032, or 12.4 percent, had a TIA prior to the stroke. During a TIA, stroke symptoms last for less than 24 hours and then resolve.

Those who did not have a warning stroke were more likely to have a more serious stroke than those who did have the warning stroke. Those with no warning were more likely to die while at the hospital (15.2 percent compared to 12.7 percent), more likely to have a heart arrest while in the hospital (4.8 percent compared to 3.1 percent) and less likely to be able to go home after the hospital stay, rather than to a nursing home or rehabilitation center (40.1 percent compared to 43.1 percent).

Those with the warning stroke were typically older than those without warning strokes. They were also more likely to have diabetes, high blood pressure and heart problems.

"It's possible that the blood vessels of those with warning strokes were preconditioned to the lack of blood flow, which protected them from the full result of the larger stroke. Any person who experiences even a minor stroke should get to the emergency room immediately."

The study was supported by the Canadian Institutes of Health Research and Ontario Ministry of Health and Long-Term Care.


Story Source:

The above story is based on materials provided by American Academy of Neurology. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Neurology. "One In Eight Strokes Is Preceded By 'Warning Stroke'." ScienceDaily. ScienceDaily, 29 September 2009. <www.sciencedaily.com/releases/2009/09/090928172342.htm>.
American Academy of Neurology. (2009, September 29). One In Eight Strokes Is Preceded By 'Warning Stroke'. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2009/09/090928172342.htm
American Academy of Neurology. "One In Eight Strokes Is Preceded By 'Warning Stroke'." ScienceDaily. www.sciencedaily.com/releases/2009/09/090928172342.htm (accessed October 23, 2014).

Share This



More Health & Medicine News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) Is your child ready? Video provided by Working Mother
Powered by NewsLook.com
U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

Newsy (Oct. 22, 2014) Now that the U.S. is restricting travel from West Africa, some are dropping questions about a travel ban and instead asking about visa bans. Video provided by Newsy
Powered by NewsLook.com
US to Track Everyone Coming from Ebola Nations

US to Track Everyone Coming from Ebola Nations

AP (Oct. 22, 2014) Stepping up their vigilance against Ebola, federal authorities said Wednesday that everyone traveling into the US from Ebola-stricken nations will be monitored for symptoms for 21 days. (Oct. 22) Video provided by AP
Powered by NewsLook.com
Doctors Help Paralysed Man Walk Again, Patient in Disbelief

Doctors Help Paralysed Man Walk Again, Patient in Disbelief

AFP (Oct. 22, 2014) Polish doctors describe how they helped a paralysed man walk again, with the patient in disbelief at the return of sensation to his legs. Duration: 1:04 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins