What is true concerning ischemic strokes?

Ischemic stroke is one of three types of stroke. It's also referred to as brain ischemia and cerebral ischemia. This type of stroke is caused by a blockage in an artery that supplies blood to the brain. The blockage reduces the blood flow and oxygen to the brain, leading to damage or death of brain cells.
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What happens when you have an ischemic stroke?

An ischemic stroke occurs when the blood supply to part of the brain is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients. Brain cells begin to die in minutes. A stroke is a medical emergency, and prompt treatment is crucial. Early action can reduce brain damage and other complications.
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What is the most common cause of ischemic stroke?

Overview. Ischemic strokes occur when blood supply is cut off to part of the brain. This type of stroke accounts for the majority of all strokes. The blocked blood flow in an ischemic stroke may be caused by a blood clot or by atherosclerosis, a disease which causes narrowing of the arteries over time.
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What is an early complication of ischemic stroke?

Patients with acute ischemic stroke are at high risk of neurologic and medical complications, such as space-occupying edema formation, hemorrhagic transformation of the infarct, epileptic seizures, depression, and venous thromboembolism.
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What are the warning signs of an ischemic stroke?

Symptoms of ischemic stroke
  • Sudden numbness or weakness of your face, arm, or leg, often on one side of the body.
  • Confusion.
  • Problems speaking or understanding others.
  • Dizziness, loss of balance or coordination, or trouble walking.
  • Vision loss or double vision.
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Ischemic Stroke - causes, symptoms, diagnosis, treatment, pathology



What's the meaning of ischemic?

Medical Definition of ischemia

: deficient supply of blood to a body part (as the heart or brain) that is due to obstruction of the inflow of arterial blood (as by the narrowing of arteries by spasm or disease) Other Words from ischemia. ischemic or chiefly British ischaemic \ -​mik \ adjective.
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What is the pathophysiology of ischemic stroke?

Pathophysiology of Stroke

Ischemic stroke is caused by deficient blood and oxygen supply to the brain; hemorrhagic stroke is caused by bleeding or leaky blood vessels. Ischemic occlusions contribute to around 85% of casualties in stroke patients, with the remainder due to intracerebral bleeding.
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What are common complications of a stroke?

What are common complications of stroke? The most common complications of stroke are: • Brain edema — swelling of the brain after a stroke. Pneumonia — causes breathing problems, a complication of many major illnesses. Pneumonia occurs as a result of not being able to move as a result of the stroke.
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What is the most common complication of stroke?

You may experience one or more of these common complications after your stroke.
  1. Blood clots or deep vein thrombosis (DVT) ...
  2. Depression and other mood changes. ...
  3. Aphasia and other speech disorders. ...
  4. Involuntary muscle tightening or spasticity. ...
  5. Chronic headaches.
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What are the conditions after a stroke?

Common physical conditions after a stroke include: Weakness, paralysis, and problems with balance or coordination. Pain, numbness, or burning and tingling sensations. Fatigue, which may continue after you return home.
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What causes ischemic?

What Causes Ischemia? A primary cause of ischemia is atherosclerosis (hardening of the arteries). Plaque, a hard, sticky substance composed mostly of fat builds up within the arteries, causing narrowing and stiffening. This reduces blood flow.
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What are the three kinds of ischemic stroke?

Ischemic Stroke. Hemorrhagic Stroke. Transient Ischemic Attack (Mini-Stroke) Brain Stem Stroke.
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What are the three main causes of strokes?

Causes
  • High blood pressure. Your doctor may call it hypertension. ...
  • Tobacco. Smoking or chewing it raises your odds of a stroke. ...
  • Heart disease. This condition includes defective heart valves as well as atrial fibrillation, or irregular heartbeat, which causes a quarter of all strokes among the very elderly. ...
  • Diabetes.
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What are ischemic changes?

Microvascular ischemic disease is a term that's used to describe changes to the small blood vessels in the brain. Changes to these vessels can damage white matter — the brain tissue that contains nerve fibers and serves as the connection point to other parts of the brain.
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What processes following an ischemic stroke result in further brain damage?

Ischemic stroke is one of three types of stroke. It's also referred to as brain ischemia and cerebral ischemia. This type of stroke is caused by a blockage in an artery that supplies blood to the brain. The blockage reduces the blood flow and oxygen to the brain, leading to damage or death of brain cells.
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What is the prognosis for ischemic stroke?

The mortality risk is higher than general population, the risk of recurrent vascular events is considerable, and only about 50% of patients recover fully (without significant disability) and return to work after first-ever ischemic stroke.
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What are long term effects of a stroke?

The most common types of disability after stroke are impaired speech, restricted physical abilities, weakness or paralysis of limbs on one side of the body, difficulty gripping or holding things, and a slowed ability to communicate.
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What are the two types of ischemic stroke?

Ischemic strokes are further divided into 2 groups:
  • Thrombotic strokes. These are caused by a blood clot that develops in the blood vessels inside the brain.
  • Embolic strokes.
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What is the difference between an ischemic stroke and a hemorrhagic stroke?

An ischaemic stroke is caused by a blockage cutting off the blood supply to the brain. This is the most common type of stroke. A haemorrhagic stroke is caused by a bleeding in or around the brain.
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What does ischemia in the brain mean?

Cerebral ischemia is a common mechanism of acute brain injury that results from impaired blood flow to the brain. Cerebral ischemia represents a medical emergency; if untreated, it can result in cerebral infarctions or global hypoxic-ischemic encephalopathy, which can result in death or permanent disability.
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Which of the following is the description of ischemia quizlet?

Define ischemia. A deprivation of adequate blood supply to a given tissue.
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How does ischemia affect the brain?

Cerebral ischemia or brain ischemia, is a condition that occurs when there isn't enough blood flow to the brain to meet metabolic demand. This leads to limited oxygen supply or cerebral hypoxia and leads to the death of brain tissue, cerebral infarction, or ischemic stroke.
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What are the 5 P's of ischemia?

The traditional 5 P's of acute ischemia in a limb (ie, pain, paresthesia, pallor, pulselessness, poikilothermia) are not clinically reliable; they may manifest only in the late stages of compartment syndrome, by which time extensive and irreversible soft tissue damage may have taken place.
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What is an ischemic injury?

Ischemic injury is caused by diminished or absent blood flow. The main mechanism of injury in ischemia is hypoxia (as described above).
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What kind of stroke affects speech?

When stroke affects speech, it's often the result of a left hemisphere stroke. This is because the language center of the brain resides in the left hemisphere.
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