Stroke/TIA Flashcards

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1
Q

Stroke

A

Cerebrovascular disorder of sudden onset
Results in death of brain tissue

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2
Q

Cause of stroke

A

Cerebral hemorrhages, bursting of aneurysms

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3
Q

Types of stroke

A

Ischemic
Hemorrhagic

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4
Q

Ischemic stroke

A

Area deprived of blood because of obstruction
Most common (around 85%)
Thrombosis or embolus to artery

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5
Q

Thrombus

A

Blood clot that forms within the blood vessel

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6
Q

Embolus

A

Material floats from another part of vascular region

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7
Q

Factors that contribute to blockage

A

Atherosclerosis
Arteriosclerosis

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8
Q

Atherosclerosis

A

Narrowing artery from plaque buildup

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9
Q

Arteriosclerosis

A

Stiffening/hardening of artery walls

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10
Q

Hemorrhagic stroke

A

Weakened vessel wall ruptures, causing bleeding in the brain
Around 15% of all strokes
35-52% of all patients die within first 30 days

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11
Q

Locations of hemorrhagic stroke

A

Intracranial
Intraventricular
Intracerebral/intrapharenchymal

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12
Q

Intracranial

A

Bleed under the skull, often due to trauma

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13
Q

Intraventricular

A

Bleed in ventricular system

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14
Q

Intracerebral/intraparenchymal

A

Bleed in blood tissue
About 2/3 of hemorrhagic strokes
Non-traumatic

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15
Q

General stroke symptoms

A

Sudden onset:
Limb weakness in one side of the body
Numbness/tingling of the face or limbs on one side of the body
Confusion, trouble speaking or comprehending speech
Walking, loss of balance, disco ordination, vertigo
Vision problems in one or both eyes
Severe headache with no known cause

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16
Q

Transient ischemic attack (TIA)

A

Similar symptoms to stroke
No neuroimaging evidence or resolves within 24 hours
Most last less than 1 hour; no tissue death
Caused by brief blocking of a cerebral vessel
Could warn of a future stroke; 8-10% have a stroke within 3 months