The cerebrum is the largest part of the brain. It is made of a left and a right hemisphere. The right hemisphere is in charge of the functions on the left-side of the body and many cognitive functions.
A right-side stroke happens when the blood supply to the right side of the brain is interrupted. Without oxygen and nutrients from blood, the brain tissue quickly dies.
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There are 2 main types of stroke: ischemic and hemorrhagic. An ischemic stroke is the most common type of stroke.
An ischemic stroke is caused by a blockage of the blood flow, which may be due to:
A hemorrhagic stroke is caused by a burst blood vessel. Blood spills out of the broken blood vessel and pools in the brain. This interrupts the flow of blood and causes a build up of pressure on the brain.
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Certain factors increase your risk of stroke but can not be changed, such as:
Other factors that may increase your risk can be changed, such as:
Certain medical condition that can increase your risk of stroke. Management or prevention of these conditions can significantly decrease your risk. Medical conditions include:
Risk factors specific to women include:
Symptoms occur suddenly. Exact symptoms will depend on the part of the brain affected. Rapid treatment is important to decrease the amount of brain damage. Brain tissue without blood flow dies quickly.
Call for emergency medical help right away if you notice any of the following:
Longer-lasting effects of the stroke may include problems with:
You will be asked about your symptoms and medical history. A physical exam will be done to look for muscle weakness, visual and speech problems, and movement difficulty.
Images may be taken of your bodily structures. This can be done with:
Blood tests can also help determine if there is a bleeding problem.
Immediate treatment is needed to:
Oxygen therapy may be needed.
For an ischemic stroke, medication may be given to:
For a hemorrhagic stroke, medication may be given to:
For an ischemic stroke, procedures may be done to:
For a hemorrhagic stroke, the doctor may:
A rehabilitation program focuses on:
Many of the risk factors for stroke can be changed. Lifestyle changes that can help reduce your chance of getting a stroke include:
American Heart Association
National Stroke Association
Heart and Stroke Foundation
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Hemorrhagic stroke. National Stroke Association website. Available at: http://www.stroke.org/understand-stroke/what-stroke/hemorrhagic-stroke. Accessed November 10, 2017.
Hemorrhagic strokes (bleeds). American Stroke Association website. Available at: http://www.strokeassociation.org/STROKEORG/AboutStroke/TypesofStroke/HemorrhagicBleeds/Hemorrhagic-Strokes-Bleeds_UCM_310940_Article.jsp#.Vk3h_k2FPIU. Updated April 26, 2017. Accessed November 10, 2017.
Intracerebral hemorrhage. EBSCO DynaMed Plus website. Available at:http://www.dynamed.com/topics/dmp~AN~T115590/Intracerebral-hemorrhage. Updated September 28, 2017. Accessed November 10, 2017.
Ischemic strokes (clots). American Stroke Association website. Available at: http://www.strokeassociation.org/STROKEORG/AboutStroke/TypesofStroke/IschemicClots/Ischemic-Strokes-Clots_UCM_310939_Article.jsp#.Vk3ipE2FPIU. Updated April 26, 2017. Accessed November 10, 2017.
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Stroke (acute management). EBSCO DynaMed Plus website. Available at:http://www.dynamed.com/topics/dmp~AN~T143427/Stroke-acute-management. Updated November 8, 2017. Accessed November 10, 2017.
Subarachnoid hemorrhage. EBSCO DynaMed Plus website. Available at:http://www.dynamed.com/topics/dmp~AN~T116453/Subarachnoid-hemorrhage. Updated July 31, 2017. Accessed November 10, 2017.
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6/2/2014 DynaMed's Systematic Literature Surveillancehttp://www.dynamed.com/topics/dmp~AN~T580145/Stroke-rehabilitation: Myint PK, Cleark AB, Kwok CS, et al. Bone mineral density and incidence of stroke: European prospective investigation into cancer-Norfolk population-based study, systemic review, and meta-analysis. Stroke. 2014;45(2):373-382.
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Last reviewed November 2017 by EBSCO Medical Review Board Rimas Lukas, MD Last Updated: 1/18/2017