Stroke - Definition, Causes, Symptoms and Treatment

Stroke is a disease that affects the blood vesselsbrain that make this more likely. The flow of
that supply blood to the brain. Without blood toblood after the blood vessel ruptures damages
supply oxygen and nutrients and to removebrain cells. Hemorrhage (or bleeding) from an
waste products, brain cells quickly begin to die.artery in the brain can be caused by a head injury
Stroke is sometimes called a "brain attack. Strokeor a burst aneurysm. Aneurysms are blood-filled
is a medical emergency and can cause permanentpouches that balloon out from weak spots in the
neurological damage or even death if notartery wall. They're often caused or made worse
promptly diagnosed and treated. It is the thirdby high blood pressure. Aneurysms aren't always
leading cause of death and the leading cause ofdangerous, but if one bursts in the brain, they
adult disability in the United States andcause a hemorrhagic stroke.Symptoms of a
industrialized European nations. Stroke is the thirdstroke include sudden numbness or weakness,
leading cause of death in the United States andespecially on one side of the body; sudden
the leading cause of disability. Stroke kills aboutconfusion or trouble speaking or understanding
150, 000 Americans each year, or almost one outspeech; sudden trouble seeing in one or both
of three stroke victims. Strokes affect blackseyes; sudden trouble with walking, dizziness, or
more often than whites, and are more likely to beloss of balance or coordination and sudden severe
fatal among blacks. Men have more strokes thanheadache.
women. But, women have a risk of stroke duringThere are several available treatments for Stroke.
pregnancy and the weeks immediately afterOxygen may be given to be sure that your brain
pregnancy. The cause of stroke is an interruptionis getting the maximal amount. Taking birth control
in the blood supply, with a resulting depletion ofpills is generally safe for young, healthy women.
oxygen and glucose in the affected area. ThisTreatment of blood pressure that is too high or
immediately reduces or abolishes neuronaltoo low may be necessary in treating a stroke.
function, and also initiates an ischemic cascadeIschemic stroke is treated by removing
which causes neurons to die or be seriouslyobstruction and restoring blood flow to the brain.
damaged, further impairing brain function. RiskA patient is given antiplatelet medication (aspirin,
factors for stroke include advanced age,clopidogrel, dipyridamole), or anticoagulant
hypertension (high blood pressure), previousmedication (warfarin), dependent on the cause,
stroke or TIA (transient ischaemic attack),when this type of stroke has been found. TPA is
diabetes mellitus, high cholesterol, cigarettemost important new treatments over the last
smoking, atrial fibrillation, migraine with aura, andfew years for the immediate treatment of a
thrombophilia. Practice blood pressure is the moststroke is a medicine called tPA(Tissue Plasminogen
important modifiable risk factor of stroke.Activator). use of Heparin and Aspirin drugs to
Many other risk factors, such as cigarettethin the blood (anticoagulation; for example,
smoking cessation and treatment of atrialheparin) are also sometimes used in treating
fibrillation with anticoagulant drugs, are important.stroke patients in the hopes of improving the
There are two main types of stroke. Onepatient's recovery. Rehabilitation can also take
(ischemic stroke) is caused by blockage of aplace at a nursing facility. The rehabilitation process
blood vessel. Usually this type of stroke resultscan include some or all of the following: (1) speech
from clogged arteries, a condition calledtherapy to relearn talking and swallowing; (2)
atherosclerosis. Fatty deposits collect on the walloccupational therapy to regain dexterity in the
of the arteries, forming a sticky substance calledarms and hands; (3) physical therapy to improve
plaque. Other (hemorrhagic stroke) is caused bystrength and walking; and (4) family education to
bleeding. Bleeding strokes have a much higherorient them in caring for their loved one at home
fatality rate than strokes caused by clots. Someand the challenges they will face.
people have defects in the blood vessels of the