AAA- Abdominal Aortic Aneurysm

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Cards In This Set

Front Back
How common are AAA in males and females?
Males- 18%females- 5%
Where do most AAA occur?
Below the renal arteries
What the difference between a true and a false aneurysm?
True- bursting of an entire vessel wallFalse- effected wall covered by tissue in a vessel
When are aneurysms prone to rupture?
When they become >5cm
What is an aortic disection?
This is when there is a tear in the aorta due to degeneration of the elastic fibers on the tunica media from athersclerotic disease
What does an aortic dissection lead to?
Sudden decrease in arterial supply to vital organs which is a medical emergency that affects more MEN and occurs in the 6th and 7th decades of life from tunica intima
What is an aneurysm?
This refers to an abnormal localized dilation in the vessel of an artery
What is a true aneurysm?
This is when the all layers of the arterial wall are involved1. TUNICA INTIMA2. TUNICA MEDIA3. TUNICA EXTERNA
What is a a false or "pseudo" aneurysm?
This is when at least one layer of the vessle wall is NOT involved
What is a saccular aneurysm?
Involves only part of the vessel wall circumference
Fusiform aneyrysm?
This involves the ENTIRE artery wall circumference
What are aneurysms the result of?
Degenerative athersclerostic chnages in the aorta
Where is the most common location for an aneyrysm?
Abdomen
Major risk for aneyrusm?
Long standing athersclerosis
Dx AAA?
CT scan