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Cardiology > AAA > Flashcards

AAA Flashcards

1
Q

What is abdominal aortic aneurysm (AAA)?

A

A localised dilatation of the aorta beyond its normal diameter

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2
Q

What is the law of Laplace?

A

tension = [pressure x radius] / wall thickness

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3
Q

What are some of the risk factors for developing AAA?

A 
Male
Family history 
Age 
Smoking 
PVD
Cardiac disease 
Cerebrovascular disease
Hypertension 
Hypercholesterolaemia 
Diabetes
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4
Q

What investigations should be done if aortic aneurysm suspected?

A

Ultrasound

CT

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5
Q

Why is use of ultrasound for investigation of AAA limited?

A

Only tells if AAA is present - does not give any indication of diameter

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6
Q

How does Endovascular Aneurysm Repair (EVAR) fix an aneurysm?

A

It excludes the dilated part of the aorta beyond the normal diameter from the normal blood flow by putting a metal tube in the path of the normal diameter

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7
Q

How is EVAR done?

A

It is inserted via a peripheral artery and is Xray guided

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8
Q

Which patients is the AAA screening program targeted at?

A

Men aged >65

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Cardiology (15 decks)

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