Cumulative Effect




If you had heart disease risk factors, such as high blood pressure, before your first stroke, your risk of suffering subsequent strokes and dementia may be higher up to five years later, according to new research in the American Heart Association’s journal Stroke.

“We already know that stroke patients have an increased risk of recurrent stroke and dementia. What we didn’t know was whether this increased risk persists for a long time after stroke and whether heart disease risk factors present before the first stroke influenced the risk of recurrent strokes or dementia,” said M. Arfan Ikram, M.D., Ph.D., senior study author and associate professor, department of epidemiology, neurology and radiology, Erasmus University Medical Center in Rotterdam, the Netherlands. “Our study found these risk factors influence future stroke and dementia and the risks persist for an extended period in some patients.”

Researchers studied a group of 1,237 stroke survivors from an existing long-term study and compared them to a stroke-free group of about 5,000 people from the same study.

They found:

  • One year after having a stroke, survivors retain a high risk of a recurrent stroke or dementia for at least five years.
  • Stroke survivors were nearly twice as likely to have dementia as those who had not suffered stroke.
  • Among the survivors, 39 percent of recurrent strokes and 10 percent of post-stroke dementia cases were attributed to pre-stroke cardiovascular risk factors, including high blood pressure, diabetes, low levels of high-density lipoprotein (HDL — the good cholesterol), smoking, and transient ischemic attack (TIA).

“This study suggests that risk factors that lead to the initial stroke may also predispose patients to worsening mental and physical health after stroke. This also applies to risk of death after stroke. We found in a previous study that 27 percent of all deaths after stroke can be attributed to risk factors already present before stroke,” Ikram said.

Taking good care of your cardiovascular risk factors — even if you have never experienced a stroke — is not only important to prevent the first stroke, but it can go a long way to prevent a second stroke and dementia, he added.

Source: American Heart Association News

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AHA-ASA Resources

The Support Network

When faced with challenges recovering from heart disease or stroke, it’s important to have emotional support. That is why we created a network to connect patients and loved ones with others during their journey.

Stroke Family Warmline

The Warmline connects stroke survivors and their families with an ASA team member who can provide support, helpful information or just a listening ear.

Let's Talk About Stroke Patient Information Sheets

Let's Talk About Stroke is a series of downloadable patient information sheets, created by the American Stroke Association, that presents information in a question-and-answer format that's brief, easy to follow and easy to read.

Request Free Stroke Information Packets

Fill out this online form to request free information about a variety of post-stroke topics.

Caregiver Guide to Stroke

The Caregiver Guide to Stroke is meant to help caregivers better navigate the recovery process and the financial and social implications of a stroke.

Tips for Daily Living Library

This volunteer-powered library gathers tips and ideas from stroke survivors, caregivers and healthcare professionals all over the country who’ve created or discovered adaptive and often innovative ways to get things done!

Stroke Support Group Finder

To find a group near you, simply enter your ZIP code and a mile radius. If your initial search does not pull up any groups, try
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Stroke & Parts of the Brain

When Stroke Affects the Temporal Lobe

The temporal lobe has several functions, mainly involved with memory, perception and language.

When Stroke Affects the Brain Stem

The brain stem serves as a bridge in the nervous system. It sits at the top of the spinal column in the center of the brain. When a stroke happens there, it can cause a few different deficits and, in the most severe cases, can lead to locked-in syndrome.

When Stroke Affects the Thalamus

The thalamus can be thought of as a "relay station," receiving signals from the brain’s outer regions (cerebral cortex), interpreting them, then sending them to other areas of the brain to complete their job.
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Departments

Stroke Notes

Stroke-related news you can use about new scientific findings, public policy, programs and resources.

Readers Room

Articles, poems and art submitted by stroke survivors and their loved ones.

Life Is Why

Everyone has a reason to live a longer, healthier life. These stroke survivors, caregivers and others share their 'whys'. We'd love for you to share yours, too!

Everyday Survival

Practical tips and advice for day-to day living after stroke.

Life At The Curb

A unique perspective on survival by comedian and stroke survivor John Kawie.

Simple Cooking

Cooking at home can be a daunting task, but a rewarding one for your diet and lifestyle (and your wallet). Making small changes in your diet is important to your heart health. Here are simple, healthy and affordable recipes and cooking tips.

Support Showcase

Our new department highlighting the good work being done by stroke support groups from around the nation. If you are part of a successful support group we should consider featuring, let us know!