Abdominal Vasculature Pathology Flashcards
3 types of aneurysms
true
false
dissecting
what is a berry aneurysm?
small saccular aneurysm commonly located in the cerebrum
atherosclerotic aneurysms result from
the weakening of the media in severe atherosclerosis
aortic aneurysms have a _____ association
genetic
aneurysms are focal dilation with at least a ____% increase over normal aortic diameter
50%
___ and ___ artery aneurysms are commonly associated with aortic aneurysms
iliac and popliteal
the most common cause of false aortic aneurysms is
trauma
the term “pseudoaneurysm” is typically used when dealing with
peripheral arteries
pseudoaneurysms are commonly associated with (2)
angiographic punctures
surgical anastomoses
dissecting aneurysms usually originate at the
aortic arch of the thorax
a dissection is a separation of the ___ from the ___ of the aortic wall
intima from the media
dissection can extend into the ____ arteries or down the AO to the ____ arteries
carotid arteries
femoral arteries
if the aortic aneurysm is infrarenal, the patient may be a candidate for
endovascular stent graft repair
endovascular stent graft is inserted into the ___ and deplored within the AO
groin
what is May-Thurner syndrome?
chronic compression of the left common iliac vein against the lumbar vertebrae by the overlying right common iliac artery
May-Thurner syndrome is also known as
iliac vein compression
May-Thurner syndrome increases the risk of ____ in the LLE
DVT
mesenteric ischemia presents as (2)
postprandial ABD pain
weight loss
mesenteric ischemia sonographic evaluation involves (3)
celiac axis - occluded
SMA - occluded
IMA - enlarged
predictors of 70% stenosis
SMA velocity greater than ____
celiac velocity greater than ____
SMA velocity > 275 cm/sec
celiac velocity > 200 cm/sec
celiac axis compression syndrome is also known as
median arcuate ligament compression syndrome
what is celiac axis compression syndrome?
compression of the proximal celiac axis by the median arcuate ligament of the diaphragm
in celiac axis compression syndrome, abdominal bruit is noted with ___ and disappears during ___
noted with expiration
disappears with inspiration
normal celiac axis velocity
< 200 cm/sec
nutcracker syndrome results in retrograde flow in the (2) veins which could cause ____ in females and ____ in males
adrenal and gonadal veins
pelvic congestion syndrome = females
varicoceles = males
AV fistulas are commonly associated with angiographic punctures of the _____ just inferior to the groin
common femoral artery
______ are the result of renal biopsy
intrarenal AV shunts
most common known cause of acquired renal AV fistulas
percutaneous renal biopsy
AV fistulas will produce ____ velocity and ____ resistance waveforms
high velocity
low resistance
