Patho Cva Thrombosis

  • July 2020
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Pathophysiology Cerebrovascular

accident

or

CVA

-A

stroke

is

the

rapidly

developing loss of brain function(s) due to disturbance in the blood supply to the brain. This can be due to ischemia (lack of blood supply) caused by thrombosis or embolism or due to a hemorrhage. As a result, the affected area of the brain is unable to function, leading to inability to move one or more limbs on one side of the body, inability to understand or formulate speech, or inability to see one side of the visual field. In the past, stroke was referred to as cerebrovascular accident or CVA, but the term "stroke" is now preferred.

Predisposing factors:

Precipitaing factors:

> Age

> Hypertension

> Heredity

> Diabetes mellitus

> Sex

> Physical inactivity

Vasoconstriction Embolism

Blockage of Blood Vessel Lack of oxygen and nutrient supply Hypoxia Altered cerebral metabolism

Decreased cerebral perfusion Local acidosis Cytotoxic Edema PARALYSIS

Brain tissue necrosis

DEATH

severe cases

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