Research Policies
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- AHRQ Grants Policy Notices
- AHRQ Informed Consent & Authorization Toolkit for Minimal Risk Research
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Topic: Stroke
There are two kinds of stroke. The more common kind, called ischemic stroke, is caused by a blood clot that blocks or plugs a blood vessel in the brain. The other kind, called hemorrhagic stroke, is caused by a blood vessel that breaks and bleeds into the brain. "Mini-strokes" or transient ischemic attacks (TIAs), occur when the blood supply to the brain is briefly interrupted. AHRQ has research, tools and resources on stroke and how clinicians can help their patients who have had a stroke.