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Absence seizure
Seizure that may be characterized by a brief lapse of attention in which the patient may stare and does not respond. Also known as petit mal seizure.
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Aphasia
The inability to understand or produce speech.
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Arterial rupture
Rupture of a cerebral artery that may contribute to interruption of the cerebral blood flow.
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Atherosclerosis
A disorder in which cholesterol and calcium build up inside the walls of blood vessels, forming plaque, which eventually leads to partial or complete blockage of blood flow; plaque of this type can also become a site where blood clots can form, break off, and emobilize elsewhere in the circulation.
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Aura
A sensation experienced prior to a seizure; serves as a warning sign that a seizure is about to occur
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Cerebral emoblism
Obstruction of a cerebral artery caused by a clot that was formed elsewhere in the body and traveled to the brain.
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Cerebrovascular accident (CVA)
An interruption of blood flow to the brain that results in the loss of brain function.
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Coma
A state of profound unconsciousness from which one cannot be roused.
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Coup-contrecoup brain injury
A brain injury that occurs when force is applied to the head and energy transmission through brain tissue causes injury on the opposite side of original impact.
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Dysarthia
The inability to pronounce speech clearly, often due to loss of the nerves or brain cells that control the small muscles in the larynx.
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Expressive aphasia
A Speech disorder in which a person can understand what is being said but cannot produce the right sounds in order to speak properly.
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Febrile seizures
Convulsions that results from sudden high fevers, particularly in children.
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Generalized seizure
Seizure characterized by severe twitching of all the body's muscles that may last several minutes or more; also known as grand mal seizure.
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Hemiparesis
Weakness on one side of the body.
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Hemorrhagic stroke
One of the two main types of stroke; occurs as a result of bleeding inside the brain.
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Hypoglycemia
A condition characterized by low blood glucose levels.
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Incontinence
Loss of bowel and bladder control due to a generalized seizure.
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Infarcted cells
Cells in the brain that die as a result of loss of blood flow to the brain.
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Ishemia
A lack of oxygen in the cells of the brain that cause them to not function properly.
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Ischemic stroke
One of the two main types of stroke; occurs when blood flow to a particular part of the brain is cut off by a blockage (eg, a clot) inside a blood vessel.
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Postictal state
Period following a seizure that lasts between 5 and 30 minutes, characterized by labored respirations and some degree of altered mental status.
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Receptive aphasia
A speech disorder in which a person has trouble understanding speech but is able to speak clearly
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Seizure
Generalized, uncoordinated muscular activity associated with loss of consciousness; a convulsion.
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Status epilepticus
A condition in which seizures recur every few minutes, or last more than 30 minutes.
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Stroke
A loss of brain function in certain brain cells that do not get enough oxygen during a cva. Usually caused by obstruction of the blood vessels in the brain that feed oxygen to those brain cells
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Thrombosis
Clotting of the cerebral arteries that may result in the interruption of cerebral blood flow and subsequent stroke.
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Tonic-clonic
A type of seizure that features rhythmic back-and-forth motion of an extremity and body stiffness.
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Transient ishemic attack (TIA)
A disorder of the brain in which brain cells temporarily stop working because of insefficient oxygen, causing stroke-like symptoms that resolve completely within 24 hours of onset
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