Stroke

STROKE(cerebrovascular accident/Disambiguation)
 A stroke, or cerebrovascular accident (CVA), is the rapid loss of brain function(s) due to disturbance in the blood supply to the brain. This can be due to ischemia (lack of blood flow) caused by blockage (thrombosis, arterial embolism), or a hemorrhage.
 As a result, the affected area of the brain cannot function, which might result:
 In an inability to move one or more limbs on one side of the body.
 Inability to understand or formulate speech.
 Inability to see one side of the visual field.
Stroke can cause:
 Stroke can affect people physically, mentally, emotionally, or a combination of the three.
 Neurological damage.
 Can lead the patient into coma,complications, and death.
 physical disabilities include:muscle weakness, numbness, pressure sores, apraxia (inability to perform learned movements), difficulties carrying out daily activities, appetite loss, speech loss, vision loss, and pain
 irritability, sleep disturbances, lowered self esteem, and Depression.

 Strokes can be classified into two major categories:
 Ischemic: Ischemic strokes are those that are caused by interruption of the blood supply
 Hemorrhagic: while hemorrhagic strokes are the ones which result from rupture of a blood vessel or an abnormal vascular structure.

 Ischemic: four reasons why this might happen:
 Thrombosis (obstruction of a blood vessel by a blood clot forming locally)
 Embolism (obstruction due to an embolus from elsewhere in the body,i.e travelling particle usually a thrombus or a form of debris)
 Systemic hypoperfusion (general decrease in blood supply, e.g., in shock)
 venous thrombosis: Cerebral venous thrombosis leads to stroke due to locally increased venous pressure, which exceeds the pressure generated by the arteries.
 Hemorrhagic:
 Intracranial hemorrhage is the accumulation of blood anywhere within the skull vault. A distinction is made between intra-axial