Incidence And Risk Factors: Ischaemic Stroke

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ANAT1012- Stroke assignment
Katie Hsiao 43565560
Ischaemic stroke

The most common subtype of stroke; Ischaemic stroke is triggered by a sudden blood circulation loss to areas of the brain, which corresponds to a loss of neurologic function. This occurs when an artery to the brain is blocked. The two main causes of Ischaemic stroke are thrombosis – when the blood clot is formed within the brain, and embolism – when the clot is formed elsewhere. (The internet stroke center)

(Blood clot deprives the brain of oxygen and important nutrients)

Incidence & risk factors:
Accounting for nearly 88 percent of all type of strokes, Ischaemic stroke is by far the most common (American Heart association, 2014). In Australia, ischaemic
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(The stroke center)
The major risk factors for intracerebral haemorrhage includes:
- Age: As intracerebral haemorrhage occurs more frequently with advanced age
- Race: ICH is more common with African Americans and Japanese than other racial groups
- Sex: ICH sufferers are slightly more often male than female
- Hypertension (high blood pressure): As an elevation of blood pressure may easily cause the rupture of the tiny arteries inside the brain.
- Tumor: Angiomas and metastatic are both highly vascularized tumors which are able to bleed into the brain tissue
- Problems with the arterial wall: e.g Amyloid angiopathy (a degenerative disease of arteries) or Aneurysm (weakening of arterial walls)
- Drug usage
(Zuccarello, 2013)
Acute presentation & diagnosis:

Intracerebral haemorrhage has a high rate of morbidity and mortality as more than one third of the patient suffering from intracerebral haemorrhage will pass away with only 20 % of patient regaining full functional independence. (Counsell C,
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(2014, Aug 29). Ischemic stroke (clots). Retrieved Sep 26, 2014, from Stroke association:
Becske, T. (2014, April 29). Subarachnoid haemorrhage. Retrieved Sep 29, 2014, from Medscape:
Counsell C, B. S. (1995). Primary intracerebral hemorrhage in the oxfordshire community stroke project. Cerebrovascular Disease , 26-34.
Elias A, G. (2013, Nov). Ischemic stroke: Stroke (CVA): Merk Manual Professional. Retrieved 9 28, 2014, from The Merk Manual :
PA wolf, R. M. (1992). Secular trends in stroke incidence and mortality. The Framingham study. Stroke , 1551-1555.
State government of queensland. (2012, May). Subarachnoid haemorrhage. Retrieved Sep 28, 2014, from Better Health Channel:
The internet stroke center. (n.d.). Ischemic stroke. Retrieved 9 28, 2014, from Stroke center:

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