compare and contrast between heart attack and stroke (draft)

7/28/2019 Compare and Contrast Between Heart Attack and Stroke (Draft)

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Compare and contrast between

heart attack and stroke


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Heart Attack

Also known as the myocardial infarction.

Occurs when the blood supply to the heart is severelyreduced or cut off.

It is usually blocked by narrowing arteries or a bloodclot.

The heart muscle will damage due to the lack ofoxygen and the person suffers from it will die.


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Causes

The leading causes of heart attack is commonly thecoronary artery disease.

This is the condition where the plaque forms on the

wall of the blood vessels. This is calledatherosclerosis.

The plaque may burst and a blood clot will formeddue to this matter.

This may stop the blood flows through the arteries.


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Coronary artery disease


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Symptoms

Discomfort at the centre of the chest, feels likepressure, squeezing or pain.

Discomfort can extend to other part of the body for

example shoulder, arms and back. Shortness of breath, sweating and fainting.


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Stroke

Occurs when the blood flows to the brain isinterrupted or limited.

Brain cells start dying minutes after a stroke.

When the brain cells die, certain ability controlled bythat area of a brain are lost. For example speech,movements and memory.


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Causes

There are two types of strokes; i) ischemic stroke andii) hemorrhagic stroke.

Ischemic stroke

occurs when the brain gets too little blood. Hemorrhagic stroke occurs when the brain gets too much blood.


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Ischemic stroke

Common types

Thrombotic stroke

Blood clots forms in an artery that carries blood to the brain.

Mainly caused by atherosclerosis.

Embolic stroke

Blood clots or other particles forms in a blood vessel away fromthe brain, often in the heart.


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Ischemic stroke


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Hemorrhagic stroke

Occurs when the blood vessel in the brain leaks orcranial arteriole burst.

Mainly because of hypertension, uncontrolled high

blood pressure or head injuries. Certain people are genetically predisposed to this

stroke due to arteriovenous malformation.


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Hemorrhagic stroke


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Symptoms

Difficult in walking, sleeping and seeing.

Paralysis, weakness or numbness on one side of thebody.

Severe vomiting, nausea and headache.


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Similarities

Both caused by blood clots which are mainly due toatherosclerosis.

Cell dies due to the lack of oxygen.

Once the cell dies, both disease are irreversible. Both disease can cause sudden death.


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Heart attack Stroke

Caused from blood cut

off to the heartmuscles.

Feel absolute pain suchas chest pain,

breathlessness and etc..

Caused from a brain

bleed. Does not feel any pain

but can causeneurological deficits-

speech, movement ofthe limbs and memorylost.

Differences


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References

http://edition.cnn.com/2008/HEALTH/10/23/tool.heart.attack.stroke/

http://www.news-medical.net/health/What-Causes-

A-Heart-Attack.aspx http://www.stroke.org/site/PageServer?pagename=

stroke

http://www.differencebetween.net/science/health/d

ifference-between-heart-attack-and-stroke/
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compare and contrast between heart attack and stroke (draft)

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