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