Types of Cerebrovascular Accidents Flashcards

1
Q

What is a Transient Ischemic Attack (TIA)

A

Usually linked to an atherosclerotic thrombus

  • causing temporary interruption of blood supply to the brain,
  • Effects similar to that of a CVA but symptoms may resolve quickly (24-48) hours.
  • may indicate a future CVA
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2
Q

Completed Stroke

A

A CVA that presents with total neurological deficits at the onset

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3
Q

Stroke in Evolution

A

CVA, that is uslly caused by a thrombus that gradually progresses.

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4
Q

Ischemic Stroke

A

Once there is a loss of perfusion to a portion of the brain.

  • there is a central area of irreversible infraction surrounded by an area of potential ischemia
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5
Q

Ishcemic Stroke (EMBOLUS)

A

Associated with cardiocascular disease.

Embolus: can be solid, liquid or gas originating from any part of the body.

  • travels through the bloodstream causing occlusion and resultant infarction.
  • occurs with no warning and can often present with a headache.
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6
Q

What cerebral artery is most commonly associated with an ischemic stroke?

A

(MIDDLE cerbral artery) most commonly affected

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7
Q

What are common cardiac disorders that can lead to an ischmic stroke

A
  • Valvular Disease (rheumatic mitral stenosis)
  • Ischemic heart disease
  • Acute MI
  • Arrhythmias (atrial fibrillation)
  • Patent Foramen Ovale
  • Cardiac Tumors
  • Post Cardiac Catherization
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8
Q

Ishchmic Stroke (Thrombus)

A

atherosclerotic plaque develops in an artery and eventually occludes the artery or a branching artery causing an infarct.

  • usally occurs in sleep or upon awakening after a MI or post-surgical procedure.
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9
Q

Hemorrhagic Stroke

A

Abnormal bleeding in the brain due to a rupture in blood supply.

infarct due to:
- disruption of oxygen to the brain
- compression from the accumulation of blood

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10
Q

What are some causes of a Hemorrhagic Stroke?

A
  • Hypertension
  • Trauma
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11
Q

Characteristics of a Hemorrhagic Stroke

A
  • Severe Headache
  • Vomiting
  • High Blood Pressure
  • Abrupt onsent of symptoms
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