Suffer stroke symptoms? Second strokes often follow within hours

Jun 01, 2009

About half of all people who have a major stroke following a warning stroke (a transient ischemic attack or mild stroke) have it within 24 hours of the first event, according to research published in the June 2, 2009, print issue of Neurology, the medical journal of the American Academy of Neurology.

"Our study highlights the need for someone who is experiencing the symptoms of a mini-stroke or transient ischemic attack to get to an fast," said Peter Rothwell, MD, PhD, FRCP, FMedSci, with the University of Oxford in the United Kingdom. "That's because even after a very minor initial , the immediate risk of a major stroke is very high."

For the study, researchers analyzed the medical records of 1,247 people who experienced a TIA, or minor stroke. Of those, 35 had recurrent strokes within 24 hours during the first month after experiencing the TIA.

Scientists looked at whether patients had another stroke within six, 12 and 24 hours after the first stroke. The timeline started when the person either experienced symptoms of a stroke or first called for medical help. The study found that after six hours, the risk of a second stroke went up by 1.2 percent. After 12 hours, the risk climbed another percent and by 24 hours the risk increased to 5 percent.

"This is the first rigorous population based study of the risk of a second stroke within 24 hours of a minor stroke," said Rothwell. "We found a second stroke rate of about 5 percent, with half of all second strokes within seven days occurring in the first 24 hours, and half of these early recurrent strokes being disabling or fatal."

More information: To learn the five signs of stroke, visit www.giveme5forstroke.org .

Source: American Academy of (news : web)

Explore further: Reducing caloric intake delays nerve cell loss

add to favorites email to friend print save as pdf

Related Stories

Stroke victims experiencing seizures more likely to die

May 19, 2008

Seizures may be a sign of significant brain injury, and may occur in patients that experience any type of stroke. A new study finds that stroke patients with ensuing seizures are more likely to die in the 30 days following ...

Cholesterol-lowering drugs and the risk of hemorrhagic stroke

Dec 12, 2007

People taking cholesterol-lowering drugs such as atorvastatin after a stroke may be at an increased risk of hemorrhagic stroke, or bleeding in the brain, a risk not found in patients taking statins who have never had a stroke. ...

Recommended for you

Reducing caloric intake delays nerve cell loss

15 hours ago

Activating an enzyme known to play a role in the anti-aging benefits of calorie restriction delays the loss of brain cells and preserves cognitive function in mice, according to a study published in the May ...

B vitamins could delay dementia

18 hours ago

(Medical Xpress)—Despite spending billions of dollars on research and development, drug companies have been unable to come up with effective treatments for dementia and Alzheimer's Disease (AD). Now, A. ...

If you can remember it, you can remember it wrong

21 hours ago

(Medical Xpress)—Native peoples in regions where cameras are uncommon sometimes react with caution when their picture is taken. The fear that something must have been stolen from them to create the photo ...

Study shows where scene context happens in our brain

23 hours ago

In a remote fishing community in Venezuela, a lone fisherman sits on a cliff overlooking the southern Caribbean Sea. This man –– the lookout –– is responsible for directing his comrades on the water, ...

Clouds in the head

May 21, 2013

Many brain researchers cannot see the forest for the trees. When they use electrodes to record the activity patterns of individual neurons, the patterns often appear chaotic and difficult to interpret.

User comments : 0

More news stories

Italy approves law on controversial stem cell therapy

Italian lawmakers on Wednesday gave their final approval to a law that allows limited use of a controversial type of stem cell therapy which has been condemned by many scientists but has given hope to families of terminally-ill ...

Ethicists' behavior not more moral, study finds

(Medical Xpress)—Do ethicists engage in better moral behavior than other professors? The answer is no. Nor are they more likely than nonethicists to act according to values they espouse, according to researchers from the ...

Coral reefs 'ruled by earthquakes and volcanoes'

(Phys.org) —Titanic forces in the Earth's crust explain why the abundance and richness of corals varies dramatically across the vast expanse of the Indian and Pacific Oceans, a world-first study from the ...

Coccoliths thrive despite ocean acidification

Ocean acidification is damaging some marine species while others thrive, say scientists. An international team studied the effect of ocean acidification on plankton in the North Sea over the past forty years, ...