ABD Board-ABD Vasculature Flashcards
three types of aortic aneurysms
true
false or pseudo
dissecting
small saccular aneurysm commonly located in the cerebrum
berry
infected aneurysm
mycotic
weakening of the media in severe atherosclerosis
atherosclerotic
spindle shaped dilatation in which the stretching process affects the entire circumference of the artery
most common
fusiform
localized spherical outpouching of the vessel wall
saccular
involve all three layers
common cause is arteriosclerotic disease
mostly fusiform and rarely saccular
mostly distal (infrarenal)
50% increase over normal diameter
iliac and popliteal artery aneurysms are commonly associated
true aneurysm
result from injury to the vessel wall and extravasated blood is walled off by the surrounding tissue
most common cause is trauma
false aneurysms
pseudoaneurysm is commonly used when talking about
peripheral arteries
usually originate at the aortic arch in the thorax
separation of the intima from the media of the aortic wall
can extend into the carotid arteries or down the AO to the femoral arteries
dissecting aneurysms
most common etiology for dissecting aneurysm
latrogenic cardiac intervention
if the aneurysm is infrarenal the patient may be a canidate for
endovascular stent graft repair
inserted into the groin
rare, represents as recurring postrandial ABD pain and wight loss
mesenteric ischemia
typically occlusion of two of three vessels will present symptoms
celiac axis
SMA
IMA
symptoms can present with one vessel occluded usually the SMA
mesenteric artery stenosis criteria
SMA velocity > 275 cm/sec
CA velocity > 200 cm/sec
complression of the proximal celiac axis by the median arcuate ligament of the diaphragm
ABD pain due to intestinal ischema or compression of the celiac nerve plexus
celiac axis compression syndrome
AKA
arcuate ligament compression syndrome