Aneurysm (Cardiovascular Disorders)

Question 1

aneurysm

Answer 1

• an excessive localized enlargement of an artery caused by weakening/degenerative changes of the artery wall
• permanent dilation of an artery (irreversible)
• NOT vasodilation

Question 2

risk factors

Answer 2

• atherosclerosis
• HTN if untreated
• congenital defects (weakened vessel walls)
• aging (tissue degeneration)

Question 3

forms of aneurysms

Answer 3

• true

- false

Question 4

true form aneurysm

Answer 4

• vessel wall intact

- >50% inc in diameter

Question 5

false form aneurysm

Answer 5

• wall compromised, not intact

- supported by external structures such as muscle, fat, etc.

Question 6

types of aneurysms

Answer 6

• fusiform
• saccular
• dissecting

Question 7

fusiform type

Answer 7

bulge on both sides of vessel (bilateral)

Question 8

saccular type

Answer 8

bulge on one side forming what looks like a sac

Question 9

dissecting type

Answer 9

dissects layer of walls (blood goes in b/w vessel wall layers)

Question 10

Cmplx of aneurysms

Answer 10

• rupture/burst of weakened vessels (primary cmplx/in brain = stroke; in aorta = death)
• thrombosis
• distal embolization (thrombus breaks up and moves to distal areas)
• pressure on joining structures (could occlude joining adjacent blood vessel/nerve)

Question 11

Tx of aneurysms

Answer 11

• Sx (prevent cmplx)